SI4463 Transceiver: Features, Pinout, and Datasheet

Sophie

Published: 28 October 2021 | Last Updated: 28 October 2021

10995

SI4463-C2A-GMR

SI4463-C2A-GMR

Silicon Labs

TxRx + MCU 142MHz~1.05GHz 1.8V~3.6V SPI 1Mbps 10.9mA~13.7mA - Receiving 44.5mA~88mA - Transmitting 4GFSK, GFSK, GMSK, OOK 4 20-VFQFN Exposed Pad

Purchase Guide

TxRx + MCU 142MHz~1.05GHz 1.8V~3.6V SPI 1Mbps 10.9mA~13.7mA - Receiving 44.5mA~88mA - Transmitting 4GFSK, GFSK, GMSK, OOK 4 20-VFQFN Exposed Pad

Silicon Laboratories' SI4463 devices are high-performance, low-current transceivers covering the sub-GHz frequency bands from 142 to 1050 MHz. This article mainly introduces features, pinout, datasheet and other detailed information about Silicon Labs SI4463.

SI4463 Description

Silicon Laboratories' SI4463 devices are high-performance, low-current transceivers covering the sub-GHz frequency bands from 142 to 1050 MHz. The radios are part of the EZRadioPRO® family, which includes a complete line of transmitters, receivers, and transceivers covering a wide range of applications. All parts offer outstanding sensitivity of –129 dBm while achieving extremely low active and standby current consumption.


The SI4463 offers frequency coverage in all major bands, including optimal phase noise, blocking, and selectivity performance for narrowband and wireless MBus licensed band applications, such as FCC Part90 and 169 MHz wireless Mbus. The 69 dB adjacent channel selectivity with 12.5 kHz channel spacing ensures robust receive operation in harsh RF conditions, which is particularly important for narrowband operation. The SI4463 offers exceptional output power of up to +20 dBm with outstanding TX efficiency. The high output power and sensitivity result in an industry-leading link budget of 146 dB allowing extended ranges and highly robust communication links.  The SI4463 can achieve up to +27 dBm output power with built-in ramping control of a low-cost external FET.


The devices can meet worldwide regulatory standards: FCC, ETSI, wireless MBus, and ARIB. All devices are designed to be compliant with 802.15.4g and WMbus smart metering standards. The devices are highly flexible and can be configured via the Wireless Development Suite (WDS) available on the Silicon Labs website.


SI4463 Pinout

pinout.jpg

Pinout


Pin NumberPin NameI/ODescription
1SDN IShutdown Input Pin.
0–VDD V digital input. SDN should be = 0 in all modes except Shutdown mode.
When SDN = 1, the chip will be completely shut down, and the contents of the
registers will be lost.
2RXp IDifferential RF Input Pins of the LNA.
See application schematic for example matching network.
3RXn I
4TX OTransmit Output Pin.
The PA output is an open-drain connection, so the L-C match must supply
VDD (+3.3 VDC nominal) to this pin.
5NC
It is recommended to connect this pin to GND per the reference design schematic. Not connected internally to any circuitry.

6VDD VDD+1.8 to +3.8 V Supply Voltage Input to Internal Regulators.
The recommended VDD supply voltage is +3.3 V.
7TXRAMP OProgrammable Bias Output with Ramp Capability for External FET PA.
8VDD VDD+1.8 to +3.8 V Supply Voltage Input to Internal Regulators.
The recommended VDD supply voltage is +3.3 V.
9GPIO0 I/OGeneral Purpose Digital I/O.
May be configured through the registers to perform various functions including:
Microcontroller Clock Output, FIFO status, POR, Wake-Up timer, Low Battery
Detect, TRSW, AntDiversity control, etc.
10GPIO1 I/O
11nIRQ OGeneral Microcontroller Interrupt Status Output.
When the SI4463 exhibits any one of the interrupt events, the nIRQ pin will
be set low = 0. The Microcontroller can then determine the state of the inter
rupt by reading the interrupt status. No external resistor pull-up is required, but
it may be desirable if multiple interrupt lines are connected.
12SCLK ISerial Clock Input.
0–VDD V digital input. This pin provides the serial data clock function for the
4-line serial data bus. Data is clocked into the SI4463 on positive edge tran
sitions.
13SDO O0–VDD V Digital Output.
Provides a serial readback function of the internal control registers.
14SDI ISerial Data Input.
0–VDD V digital input. This pin provides the serial data stream for the 4-line
serial data bus.
15nSEL ISerial Interface Select Input.
0–VDD V digital input. This pin provides the Select/Enable function for the
4-line serial data bus.
16XOUT OCrystal Oscillator Output.
Connect to an external 25 to 32 MHz crystal, or leave floating when driving
with an external source on XIN.
17XIN ICrystal Oscillator Input.
Connect to an external 25 to 32 MHz crystal, or connect to an external source.
18GND GNDWhen using an XTAL, leave floating per the reference design schematic. When
using a TCXO, connect to TCXO GND, which should be separate from the
board’s reference ground plane.
19GPIO2 I/OGeneral Purpose Digital I/O.
May be configured through the registers to perform various functions, including
Microcontroller Clock Output, FIFO status, POR, Wake-Up timer, Low Battery
Detect, TRSW, AntDiversity control, etc.
20GPIO3 I/O
PKG PADDLE_GND GNDThe exposed metal paddle on the bottom of the SI4463 supplies the RF and circuit ground(s) for the entire chip. It is very important that a good solder connection is made between this exposed metal paddle and the ground plane of the
PCB underlying the SI4463.


SI4463 CAD Model

symbol.png

Symbol

footprint.png

Footprint

3D Model.jpg

3D Model

SI4463 Features

● Frequency range = 142–1050 MHz

● Receive sensitivity = –129 dBm

● Modulation

--(G)FSK, 4(G)FSK, (G)MSK

--OOK

● Max output power

--+20 dBm (Si4463)

--+16 dBm (Si4461)

--+13 dBm (Si4460)

● PA support for +27 or +30 dBm

● Low active power consumption

--10/13 mA RX

--18 mA TX at +10 dBm (Si4460)

● Ultra-low current power down modes

--30 nA shutdown, 40 nA standby

● Preamble sense mode

--6 mA average RX current at 1.2 kbps

--10 µA average RX current at 50 kbps and 1-sec sleep interval

● Fast preamble detection

--1 byte preamble detection

● Data rate = 100 bps to 1 Mbps

● Fast wake and hop times

● Power supply = 1.8 to 3.8 V

● Excellent selectivity performance

--69 dB adjacent channel

--79 dB blocking at 1 MHz

● Antenna diversity and T/R switch control

● The highly configurable packet handler

● TX and RX 64 byte FIFOs

--129 bytes dedicated Tx or Rx

● Auto frequency control (AFC)

● Automatic gain control (AGC)

● Low BOM

● Low battery detector

● Temperature sensor

● 20-Pin QFN package

● IEEE 802.15.4g and WMBus compliant

● Suitable for FCC Part 90 Mask D, FCC part 15.247, 15,231, 15,249, ARIB T-108, T-96, T-67, RCR STD-30, China regulatory

● ETSI Category I Operation EN300 220


Specifications

Silicon Labs SI4463-C2A-GMR technical specifications, attributes, parameters and parts with similar specifications to Silicon Labs SI4463-C2A-GMR.
  • Type
    Parameter
  • Factory Lead Time
    8 Weeks
  • Contact Plating

    Contact plating (finish) provides corrosion protection for base metals and optimizes the mechanical and electrical properties of the contact interfaces.

    Tin
  • Mount

    In electronic components, the term "Mount" typically refers to the method or process of physically attaching or fixing a component onto a circuit board or other electronic device. This can involve soldering, adhesive bonding, or other techniques to secure the component in place. The mounting process is crucial for ensuring proper electrical connections and mechanical stability within the electronic system. Different components may have specific mounting requirements based on their size, shape, and function, and manufacturers provide guidelines for proper mounting procedures to ensure optimal performance and reliability of the electronic device.

    Surface Mount
  • Mounting Type

    The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.

    Surface Mount
  • Package / Case

    refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.

    20-VFQFN Exposed Pad
  • Operating Temperature

    The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.

    -40°C~85°C
  • Packaging

    Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.

    Tape & Reel (TR)
  • Published
    2011
  • Part Status

    Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.

    Active
  • Moisture Sensitivity Level (MSL)

    Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures

    1 (Unlimited)
  • Number of Terminations
    20
  • Type
    TxRx + MCU
  • Voltage - Supply

    Voltage - Supply refers to the range of voltage levels that an electronic component or circuit is designed to operate with. It indicates the minimum and maximum supply voltage that can be applied for the device to function properly. Providing supply voltages outside this range can lead to malfunction, damage, or reduced performance. This parameter is critical for ensuring compatibility between different components in a circuit.

    1.8V~3.6V
  • Terminal Position

    In electronic components, the term "Terminal Position" refers to the physical location of the connection points on the component where external electrical connections can be made. These connection points, known as terminals, are typically used to attach wires, leads, or other components to the main body of the electronic component. The terminal position is important for ensuring proper connectivity and functionality of the component within a circuit. It is often specified in technical datasheets or component specifications to help designers and engineers understand how to properly integrate the component into their circuit designs.

    QUAD
  • Terminal Form

    Occurring at or forming the end of a series, succession, or the like; closing; concluding.

    NO LEAD
  • Peak Reflow Temperature (Cel)

    Peak Reflow Temperature (Cel) is a parameter that specifies the maximum temperature at which an electronic component can be exposed during the reflow soldering process. Reflow soldering is a common method used to attach electronic components to a circuit board. The Peak Reflow Temperature is crucial because it ensures that the component is not damaged or degraded during the soldering process. Exceeding the specified Peak Reflow Temperature can lead to issues such as component failure, reduced performance, or even permanent damage to the component. It is important for manufacturers and assemblers to adhere to the recommended Peak Reflow Temperature to ensure the reliability and functionality of the electronic components.

    NOT SPECIFIED
  • Number of Functions
    1
  • Supply Voltage

    Supply voltage refers to the electrical potential difference provided to an electronic component or circuit. It is crucial for the proper operation of devices, as it powers their functions and determines performance characteristics. The supply voltage must be within specified limits to ensure reliability and prevent damage to components. Different electronic devices have specific supply voltage requirements, which can vary widely depending on their design and intended application.

    3.3V
  • Terminal Pitch

    The center distance from one pole to the next.

    0.5mm
  • Frequency

    In electronic components, the parameter "Frequency" refers to the rate at which a signal oscillates or cycles within a given period of time. It is typically measured in Hertz (Hz) and represents how many times a signal completes a full cycle in one second. Frequency is a crucial aspect in electronic components as it determines the behavior and performance of various devices such as oscillators, filters, and communication systems. Understanding the frequency characteristics of components is essential for designing and analyzing electronic circuits to ensure proper functionality and compatibility with other components in a system.

    142MHz~1.05GHz
  • Time@Peak Reflow Temperature-Max (s)

    Time@Peak Reflow Temperature-Max (s) refers to the maximum duration that an electronic component can be exposed to the peak reflow temperature during the soldering process, which is crucial for ensuring reliable solder joint formation without damaging the component.

    NOT SPECIFIED
  • JESD-30 Code

    JESD-30 Code refers to a standardized descriptive designation system established by JEDEC for semiconductor-device packages. This system provides a systematic method for generating designators that convey essential information about the package's physical characteristics, such as size and shape, which aids in component identification and selection. By using JESD-30 codes, manufacturers and engineers can ensure consistency and clarity in the specification of semiconductor packages across various applications and industries.

    S-XQCC-N20
  • Operating Supply Voltage

    The voltage level by which an electrical system is designated and to which certain operating characteristics of the system are related.

    3.3V
  • Power - Output

    Power Output in electronic components refers to the amount of electrical power that a device can deliver to a load. It is typically measured in watts and indicates the effectiveness of the component in converting electrical energy into usable work or signal. Power Output can vary based on the component's design, operating conditions, and intended application, making it a critical factor in the performance of amplifiers, power supplies, and other electronic devices. Understanding the Power Output helps in selecting appropriate components for specific applications to ensure efficiency and reliability.

    20dBm Max
  • RF Family/Standard

    The parameter "RF Family/Standard" in electronic components refers to the specific radio frequency (RF) technology or standard that the component complies with or is designed for. RF technology encompasses a wide range of frequencies used for wireless communication, such as Wi-Fi, Bluetooth, cellular networks, and more. Different RF standards dictate the frequency bands, modulation techniques, data rates, and other specifications for communication systems. Understanding the RF family/standard of a component is crucial for ensuring compatibility and optimal performance in RF applications.

    General ISM < 1GHz
  • Data Rate (Max)

    Data Rate (Max) refers to the maximum rate at which data can be transferred or processed within an electronic component or device. It is typically measured in bits per second (bps) or megabits per second (Mbps). This parameter is important for determining the speed and efficiency of data transmission or processing in various electronic applications such as computer systems, networking devices, and memory modules. A higher data rate indicates that the component is capable of handling larger volumes of data at a faster pace, leading to improved performance and responsiveness in electronic systems. It is crucial to consider the Data Rate (Max) specification when selecting electronic components to ensure compatibility and optimal functionality for specific applications.

    1Mbps
  • Serial Interfaces

    A serial interface is a communication interface between two digital systems that transmits data as a series of voltage pulses down a wire. Essentially, the serial interface encodes the bits of a binary number by their "temporal" location on a wire rather than their "spatial" location within a set of wires.

    SPI
  • Current - Receiving

    Current - Receiving refers to the amount of electrical current that an electronic component or device is capable of accepting from a power source or another component in a circuit. It indicates the maximum current that can be safely received without causing damage or malfunction. This parameter is crucial for ensuring compatibility and reliability in electronic designs, as exceeding the rated receiving current can lead to overheating or failure of the component.

    10.9mA~13.7mA
  • Current - Transmitting

    Current - Transmitting is a parameter used to describe the maximum amount of electrical current that an electronic component can handle while in the transmitting mode. This parameter is crucial for components such as transistors, diodes, and integrated circuits that are involved in transmitting signals or power within a circuit. Exceeding the specified current transmitting rating can lead to overheating, component failure, or even damage to the entire circuit. Designers and engineers must carefully consider this parameter when selecting components to ensure the reliability and performance of the electronic system.

    44.5mA~88mA
  • Modulation

    In electronic components, modulation refers to the process of varying one or more properties of a periodic waveform, known as the carrier signal, in order to encode information. This modulation technique is commonly used in communication systems to transmit data efficiently over long distances. By modulating the carrier signal, information such as audio, video, or data can be embedded onto the signal for transmission and then demodulated at the receiving end to retrieve the original information. There are various types of modulation techniques, including amplitude modulation (AM), frequency modulation (FM), and phase modulation (PM), each with its own advantages and applications in different communication systems.

    4GFSK, GFSK, GMSK, OOK
  • Sensitivity (dBm)

    Sensitivity (dBm) is a parameter used to measure the minimum input power level required for an electronic component or device to operate effectively. It is typically expressed in decibels relative to one milliwatt (dBm), which is a common unit of power measurement in the field of electronics. A higher sensitivity value indicates that the component can detect weaker input signals, making it more responsive and capable of functioning in low-power conditions. Sensitivity is an important specification for devices like receivers, sensors, and transducers, as it directly impacts their ability to detect and process signals accurately. Manufacturers often provide sensitivity ratings to help users understand the performance capabilities of the component in different operating conditions.

    -129 dBm
  • GPIO

    GPIO stands for General Purpose Input/Output. It is a type of electronic pin found on microcontrollers, microprocessors, and other integrated circuits that can be configured to either input or output digital signals. GPIO pins can be used to connect and communicate with external devices such as sensors, LEDs, motors, and more. They provide a flexible way to interact with the physical world by allowing the device to both receive and send digital signals. GPIO pins can be programmed and controlled by software to perform various functions based on the specific requirements of the electronic system.

    4
  • Height Seated (Max)

    Height Seated (Max) is a parameter in electronic components that refers to the maximum allowable height of the component when it is properly seated or installed on a circuit board or within an enclosure. This specification is crucial for ensuring proper fit and alignment within the overall system design. Exceeding the maximum seated height can lead to mechanical interference, electrical shorts, or other issues that may impact the performance and reliability of the electronic device. Manufacturers provide this information to help designers and engineers select components that will fit within the designated space and function correctly in the intended application.

    0.9mm
  • RoHS Status

    RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.

    RoHS Compliant
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SI4463 Functional Block Diagram

Functional Block Diagram.png

Functional Block Diagram


SI4463 Single Antenna with RF Switch Example

Si4463 Single Antenna with RF Switch Example.png

SI4463 Single Antenna with RF Switch Example


SI4463 Alternatives

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SX1236IMLTRTTELECOMMUNICATION CIRCUITSManchester Encoder/Decoder, 6 X 6 MM, HALOGEN FREE AND ROHS COMPLIANT, QFN-28Semtech Corporation
3D3523D-10TELECOMMUNICATION CIRCUITSManchester Encoder/Decoder, CMOS, PDSO14, 0.150 INCH, ROHS COMPLIANT, SOIC-14Data Delay Devices Inc
3D3523G-50TELECOMMUNICATION CIRCUITSManchester Encoder/Decoder, CMOS, PDSO14, 0.300 INCH, ROHS COMPLIANT, GULLWING, DIP-14Data Delay Devices Inc
TDA5340TELECOMMUNICATION CIRCUITSManchester Encoder/Decoder, PDSO20, GREEN, PLASTIC, TSSOP-28Infineon Technologies AG
3D3523-50TELECOMMUNICATION CIRCUITSManchester Encoder/Decoder, CMOS, PDIP14, 0.300 INCH, ROHS COMPLIANT, DIP-14Data Delay Devices Inc


SI4463 Applications

● Smart Metering (802.15.4g and WMBus)

● Remote Control

● Home Security and Alarm

● Telemetry

● Garage and Gate Openers

● Remote Keyless Entry

● Home Automation

● Industrial Control

● Sensor Networks

● Health Monitors

● Electronic Shelf Labels


SI4463 Package

Package.png

Package


SI4463 Manufacturer

Silicon Labs (NASDAQ: SLAB) is a leader in secure, intelligent wireless technology for a more connected world. They offer a broad product portfolio covering chips, software and system solutions for the Internet of Things, Internet infrastructure, industrial control, consumer and automotive markets. These solutions are used to solve the most difficult problems in the electronics industry and provide products with high performance, low energy consumption, simple design, and connectivity, enabling designers to transform their initial ideas into final products.


Their integrated hardware and software platform, intuitive development tools, unmatched ecosystem and robust support make them the ideal long-term partner in building advanced industrial, commercial, home and life applications. Silicon Labs make it easy for developers to solve complex wireless challenges throughout the product lifecycle and get to market quickly with innovative solutions that transform industries, grow economies and improve lives.


Datasheet PDF

Download datasheets and manufacturer documentation for Silicon Labs SI4463-C2A-GMR.
Frequently Asked Questions

1.What is the difference between SI4432 and SI4463 programming?

SI4463, as the follow-up model of SI4432 launched by Silabs, has done a more complete optimization of the latter's radio frequency performance and communication functions. In the communication function (SPI), the support for Silabs "EZRadioPRO" is mainly increased, and the API method is used to operate Si4463 for the first time, which is quite different from the direct register operation method of SI4432.

2.Are SI4463 and SI4438 registers common?

The SI4438 chip is still better than the 4432 performance index.

3.How does STM32 receive SI4463 data?

Just enter the parameters in the gray grid of the above picture, and then configure according to the generated data.
SI4463-C2A-GMR

Silicon Labs

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