AS6C62256 CMOS SRAM: Features, Pinout and Datasheet
3/5V V Through Hole 28 Pin Memory IC 256 kb kb 36.32mm mm
The AS6C62256 is a 262,144-bit low power CMOS static random access memory organized as 32,768 words by 8 bits. It is fabricated using very high performance, high reliability CMOS technology. The AS6C62256 is well designed for low power application, and particularly well suited for battery back-up nonvolatile memory application. Furthermore, Huge range of Semiconductors, Capacitors, Resistors and IcS in stock. Welcome RFQ.

AS6C62256 32K SRAM Integrated Circuit
AS6C62256 Pinout
The following figure is the diagram of AS6C62256 pinout.

Pinout
AS6C62256 CAD Model
The followings are AS6C62256 Symbol, Footprint, and 3D Model.

PCB Symbol

PCB Footprint

3D Model
AS6C62256 Overview
The AS6C62256 is a 262,144-bit low power CMOS static random access memory organized as 32,768 words by 8 bits. It is fabricated using very high performance, high reliability CMOS technology. Its standby current is stable within the range of operating temperature. The AS6C62256 is well designed for low power application, and particularly well suited for battery back-up nonvolatile memory application. The AS6C62256 operates with wide range power supply 2.7 ~ 5.5V.
This article provides you with a basic overview of the AS6C62256 CMOS Static Random Access Memory, including its pin descriptions, features and specifications, etc., to help you quickly understand what AS6C62256 is.
AS6C62256 Features
● Access time : 55ns
● Low power consumption:
◆ Operation current: 15mA (TYP.), VCC = 3.0V
◆ Standby current: 1µA (TYP.), VCC = 3.0V
● Wide range power supply : 2.7 ~ 5.5V
● Fully Compatible with all Competitors 5V product
● Fully Compatible with all Competitors 3.3V product
● All inputs and outputs TTL compatible
● Fully static operation
● Tri-state output
● Data retention voltage :1.5V (MIN.)
● All products ROHS Compliant
● Package : 28-pin 600 mil PDIP
Specifications
- TypeParameter
- Factory Lead Time8 Weeks
- 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.
Through Hole - 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.
Through Hole - Package / Case
refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.
28-DIP (0.600, 15.24mm) - Number of Pins28
- Memory TypesVolatile
- Usage LevelCommercial grade
- 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.
0°C~70°C TA - 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.
Tube - Published2005
- JESD-609 Code
The "JESD-609 Code" in electronic components refers to a standardized marking code that indicates the lead-free solder composition and finish of electronic components for compliance with environmental regulations.
e3/e6 - Pbfree Code
The "Pbfree Code" parameter in electronic components refers to the code or marking used to indicate that the component is lead-free. Lead (Pb) is a toxic substance that has been widely used in electronic components for many years, but due to environmental concerns, there has been a shift towards lead-free alternatives. The Pbfree Code helps manufacturers and users easily identify components that do not contain lead, ensuring compliance with regulations and promoting environmentally friendly practices. It is important to pay attention to the Pbfree Code when selecting electronic components to ensure they meet the necessary requirements for lead-free applications.
yes - 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 Terminations28
- ECCN Code
An ECCN (Export Control Classification Number) is an alphanumeric code used by the U.S. Bureau of Industry and Security to identify and categorize electronic components and other dual-use items that may require an export license based on their technical characteristics and potential for military use.
EAR99 - Terminal Finish
Terminal Finish refers to the surface treatment applied to the terminals or leads of electronic components to enhance their performance and longevity. It can improve solderability, corrosion resistance, and overall reliability of the connection in electronic assemblies. Common finishes include nickel, gold, and tin, each possessing distinct properties suitable for various applications. The choice of terminal finish can significantly impact the durability and effectiveness of electronic devices.
MATTE TIN/TIN BISMUTH - HTS Code
HTS (Harmonized Tariff Schedule) codes are product classification codes between 8-1 digits. The first six digits are an HS code, and the countries of import assign the subsequent digits to provide additional classification. U.S. HTS codes are 1 digits and are administered by the U.S. International Trade Commission.
8542.32.00.32 - 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.
2.7V~5.5V - 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.
DUAL - Number of Functions1
- 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.
2.54mm - Pin Count
a count of all of the component leads (or pins)
28 - 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 - Supply Voltage-Max (Vsup)
The parameter "Supply Voltage-Max (Vsup)" in electronic components refers to the maximum voltage that can be safely applied to the component without causing damage. It is an important specification to consider when designing or using electronic circuits to ensure the component operates within its safe operating limits. Exceeding the maximum supply voltage can lead to overheating, component failure, or even permanent damage. It is crucial to adhere to the specified maximum supply voltage to ensure the reliable and safe operation of the electronic component.
5.5V - Power Supplies
an electronic circuit that converts the voltage of an alternating current (AC) into a direct current (DC) voltage.?
3/5V - Supply Voltage-Min (Vsup)
The parameter "Supply Voltage-Min (Vsup)" in electronic components refers to the minimum voltage level required for the component to operate within its specified performance range. This parameter indicates the lowest voltage that can be safely applied to the component without risking damage or malfunction. It is crucial to ensure that the supply voltage provided to the component meets or exceeds this minimum value to ensure proper functionality and reliability. Failure to adhere to the specified minimum supply voltage may result in erratic behavior, reduced performance, or even permanent damage to the component.
2.7V - Memory Size
The memory capacity is the amount of data a device can store at any given time in its memory.
256Kb 32K x 8 - Number of Ports
A port is identified for each transport protocol and address combination by a 16-bit unsigned number,.
1 - Memory Format
Memory Format in electronic components refers to the specific organization and structure of data storage within a memory device. It defines how data is stored, accessed, and managed within the memory module. Different memory formats include RAM (Random Access Memory), ROM (Read-Only Memory), and various types of flash memory. The memory format determines the speed, capacity, and functionality of the memory device, and it is crucial for compatibility with other components in a system. Understanding the memory format is essential for selecting the right memory module for a particular application or device.
SRAM - Memory Interface
An external memory interface is a bus protocol for communication from an integrated circuit, such as a microprocessor, to an external memory device located on a circuit board.
Parallel - Organization
In the context of electronic components, the parameter "Organization" typically refers to the arrangement or structure of the internal components within a device or system. It can describe how various elements such as transistors, resistors, capacitors, and other components are physically arranged and interconnected on a circuit board or within a semiconductor chip.The organization of electronic components plays a crucial role in determining the functionality, performance, and efficiency of a device. It can impact factors such as signal propagation, power consumption, thermal management, and overall system complexity. Engineers carefully design the organization of components to optimize the operation of electronic devices and ensure reliable performance.Different types of electronic components may have specific organizational requirements based on the intended application and design considerations. For example, integrated circuits may have a highly compact and intricate organization to maximize functionality within a small footprint, while larger electronic systems may have a more modular and distributed organization to facilitate maintenance and scalability.
32KX8 - Output Characteristics
Output characteristics in electronic components refer to the relationship between the output voltage and output current across a range of input conditions. This parameter is essential for understanding how a device, such as a transistor or operational amplifier, behaves under various loads and operating points. It provides insights into the efficiency, performance, and limitations of the component, helping designers to make informed choices for circuits and applications.
3-STATE - Write Cycle Time - Word, Page
Write Cycle Time - Word, Page refers to the duration required to write data to a specific memory cell or a page of memory in electronic components, particularly in non-volatile memories like Flash or EEPROM. It indicates the time taken to complete a writing operation for a single word or an entire page of data. This parameter is crucial for determining the performance and speed of memory devices in applications where quick data storage is essential. It impacts the overall efficiency in data handling, affecting both read and write speeds in memory-related operations.
55ns - Address Bus Width
A computer system has an address bus with 8 parallel lines. This means that the address bus width is 8 bits.
15b - Density
In electronic components, "Density" refers to the mass or weight of a material per unit volume. It is a physical property that indicates how tightly packed the atoms or molecules are within the material. The density of a component can affect its performance and characteristics, such as its strength, thermal conductivity, and electrical properties. Understanding the density of electronic components is important for designing and manufacturing processes to ensure optimal performance and reliability.
256 kb - Standby Current-Max
Standby Current-Max refers to the maximum amount of current that an electronic component or device consumes while in a low-power standby mode. This parameter is critical for power management, especially in battery-operated devices, as it indicates how efficiently the device can conserve energy when not actively in use. A lower Standby Current-Max value is typically desirable, as it contributes to longer battery life and reduced energy consumption. Manufacturers specify this value to help engineers select components that meet specific power efficiency requirements in their designs.
0.00002A - Access Time (Max)
Access Time (Max) is a parameter in electronic components, particularly in memory devices such as RAM (Random Access Memory) and storage devices like hard drives and SSDs (Solid State Drives). It refers to the maximum amount of time it takes for the component to retrieve data after receiving a request. In simpler terms, it measures the speed at which data can be accessed from the component. A lower access time indicates faster performance, as the component can quickly retrieve and deliver data to the system. Manufacturers often specify the maximum access time in the component's datasheet to help users understand its performance capabilities.
55 ns - I/O Type
"I/O Type" in electronic components refers to the type of input/output interface that the component uses to communicate with other devices or systems. This parameter specifies whether the component uses analog or digital signals for input and output operations. Analog signals are continuous and can have an infinite number of values, while digital signals are discrete and have only two possible values (0 or 1).Understanding the I/O Type of an electronic component is crucial for ensuring compatibility and proper communication with other components in a circuit or system. It helps determine the type of signals that the component can send and receive, as well as the protocols and standards that need to be followed for successful data exchange.In summary, the I/O Type parameter of electronic components defines the nature of the signals used for input and output operations, whether they are analog or digital, and plays a key role in establishing seamless communication within electronic systems.
COMMON - Standby Voltage-Min
Standby Voltage-Min is a parameter in electronic components that refers to the minimum voltage required to maintain the standby mode of operation. Standby mode is a low-power state in which the device is still operational but consumes significantly less power compared to its active mode. The Standby Voltage-Min specification ensures that the component remains in standby mode and is ready to quickly transition to full operation when needed. It is important for ensuring energy efficiency and prolonging the battery life of devices that utilize standby modes.
2V - Reverse Pinout
Reverse pinout refers to a configuration in electronic components where the pin assignments or connections are arranged in a way that is opposite to the standard or expected layout. This can occur in various types of components, such as integrated circuits or connectors, and typically requires special consideration during design and implementation to avoid incorrect connections. Reverse pinout can be used intentionally for specific applications or as a method to prevent misconnection in circuit designs.
YES - Height3.81mm
- Length36.32mm
- Width13.21mm
- Radiation Hardening
Radiation hardening is the process of making electronic components and circuits resistant to damage or malfunction caused by high levels of ionizing radiation, especially for environments in outer space (especially beyond the low Earth orbit), around nuclear reactors and particle accelerators, or during nuclear accidents or nuclear warfare.
No - RoHS Status
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.
ROHS3 Compliant - Lead Free
Lead Free is a term used to describe electronic components that do not contain lead as part of their composition. Lead is a toxic material that can have harmful effects on human health and the environment, so the electronics industry has been moving towards lead-free components to reduce these risks. Lead-free components are typically made using alternative materials such as silver, copper, and tin. Manufacturers must comply with regulations such as the Restriction of Hazardous Substances (RoHS) directive to ensure that their products are lead-free and environmentally friendly.
Lead Free
AS6C62256 Functional Block Diagram
The following is the Functional Block Diagram of AS6C62256.

Functional Block Diagram
AS6C62256 Equivalent
| Model number | Manufacturer | Description |
| K6X0808C1D-DF55 | Samsung Semiconductor | Standard SRAM, 32KX8, 55ns, CMOS, PDIP28, 0.600 INCH, DIP-28 |
| K6X0808C1D-DF550 | Samsung Semiconductor | Standard SRAM, 32KX8, 55ns, CMOS, PDIP28, 0.600 INCH, DIP-28 |
Parts with Similar Specs
- ImagePart NumberManufacturerPackage / CaseNumber of PinsMemory TypeDensityAddress Bus WidthSupply VoltageRadiation HardeningMountView Compare
AS6C62256-55PCN
28-DIP (0.600, 15.24mm)
28
Volatile
256 kb
15 b
3.3 V
No
Through Hole
28-DIP (0.600, 15.24mm)
28
Volatile
256 kb
15 b
5 V
No
Through Hole
PDIP
28
RAM, SDR, SRAM - Asynchronous
256 kb
15 b
5 V
No
Through Hole
PDIP
28
RAM, SDR, SRAM - Asynchronous
256 kb
15 b
5 V
No
Through Hole
PDIP
28
RAM, SDR, SRAM - Asynchronous
256 kb
15 b
5 V
No
Through Hole
AS6C62256 Package
The following diagrams show the AS6C62256 package.

28 pin 600 mil PDIP Package Outline Dimension View A

28 pin 600 mil PDIP Package Outline Dimension View B

28 pin 600 mil PDIP Package Outline Dimension View C
AS6C62256 Manufacturer
Alliance Memory, Inc. is a worldwide provider of LEGACY memory products for the communications, computing, industrial and consumer markets. The company supports a full range of 3.3 V and 5 V asynchronous SRAMs used with mainstream digital signal processors (DSPs) and microcontrollers; synchronous SRAMS, low-power SRAMs and ZMD low-power SRAMs. Alliance Memory also offers synchronous DRAMs (SDR),DDR1, DDR2 and DDR3 products. Alliance Memory, Inc. is a privately held company with headquarters in San Carlos, California, regional HQ in United Kingdom and Taiwan with regional sales offices in Germany, France, Italy, Sweden (covering the Nordic region) and South East Asia.
Trend Analysis
Datasheet PDF
- Datasheets :
- Environmental Information :
How many pins of AS6C62256?
28 Pins.
What’s the operating temperature of AS6C62256?
0°C~70°C TA.
What is the essential property of the AS6C62256?
The AS6C62256 is a 262,144-bit low power CMOS static random access memory organized as 32,768 words by 8 bits. It is fabricated using very high performance, high reliability CMOS technology. The AS6C62256 is well designed for low power application, and particularly well suited for battery back-up nonvolatile memory application.
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Alliance Memory, Inc.
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