- Manufacturer
- RoHS Status
- Package / Case
- Time Format
- Current - Timekeeping (Max)
- Date Format
- Features
- Interface
- Moisture Sensitivity Level (MSL)
- Mounting Type
- Operating Temperature
- Packaging
- Part Status
Attribute column
Categories
Clock/Timing - Real Time Clocks
Product | Inventory | Pricing(USD) | Quantity | Datasheet | RoHS | Lifecycle Status | Contact Plating | Mount | Mounting Type | Package / Case | Number of Pins | Supplier Device Package | Base Product Number | Battery Backup Switching | Brand | Case Code - mm | Colour front ring | Construction type lens | Degree of protection (IP), front side | Factory Pack QuantityFactory Pack Quantity | Illuminated | Labelled | Lead Free Status / RoHS Status | Manufacturer | Manufacturer Lifecycle Status | Material front ring | Maximum Operating Temperature | Mfr | Minimum Operating Temperature | Mounting Styles | MSL | Other Names | Package | Permitted cable outer temperature after assembling without vibration | Permitted cable outer temperature during assembling/handling | Product Status | Rated current In | RoHS | RTC Bus Interface | RTC Memory Size | Supply Voltage-Max | Supply Voltage-Min | Tradename | Unit Weight | Voltage Rated | With front ring | Operating Temperature | Packaging | Series | Size / Dimension | Tolerance | Moisture Sensitivity Level (MSL) | Number of Terminations | Temperature Coefficient | Type | Resistance | Max Operating Temperature | Min Operating Temperature | Composition | Applications | Power (Watts) | Capacitance | Subcategory | Power Rating | Technology | Voltage - Supply | Current Rating | Frequency | Frequency Stability | Base Part Number | Output | Termination Style | Function | Base Resonator | Current - Supply (Max) | Actuator Type | Operating Supply Voltage | Circuit | Failure Rate | Lead Spacing | Current - Supply (Disable) (Max) | Interface | Max Supply Voltage | Min Supply Voltage | Test Frequency | Memory Size | Impedance | Lead Style | Number of Poles | Spread Spectrum Bandwidth | Topology | Logic Function | Product Type | Frequency Range | Insertion Loss | Isolation | Absolute Pull Range (APR) | RF Type | P1dB | Time Format | Date Format | Current - Timekeeping (Max) | Voltage - Supply, Battery | IIP3 | Product | Features | Product Category | Diameter | Height Seated (Max) | Length | Thickness (Max) | Radiation Hardening | Lead Free | Ratings |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
![]() DS1672U-3 Analog Devices | 44 |
| Datasheet | - | - | - | Surface Mount | 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) | - | 8-uMAX/uSOP | DS1672 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | Analog Devices Inc./Maxim Integrated | - | - | - | - | Tube | - | - | Active | - | - | - | - | - | - | - | - | - | - | -40°C ~ 85°C | - | - | - | - | - | - | - | Binary Counter | - | - | - | - | - | - | - | - | - | - | 2.7V ~ 3.3V | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | I²C, 2-Wire Serial | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | Binary | Binary | 500µA @ 3.3V | 1.3V ~ 3.63V | - | - | Trickle-Charger | - | - | - | - | - | - | - | - | ||
![]() MAX6909EO33 Analog Devices | In Stock | - | Datasheet | - | - | - | Surface Mount | 20-SSOP (0.154, 3.90mm Width) | - | 20-QSOP | MAX6909 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | Analog Devices Inc./Maxim Integrated | - | - | - | - | Tube | - | - | Obsolete | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | Clock/Calendar/Supervisor | - | - | - | - | - | - | - | - | - | - | 3V ~ 3.6V | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | I²C, 2-Wire Serial | - | - | - | 31B | - | - | - | - | - | - | - | - | - | - | - | - | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
![]() DS1315N-5 Analog Devices | 21 |
| Datasheet | - | - | - | Through Hole | 16-DIP (0.300, 7.62mm) | - | 16-PDIP | DS1315 | Backup Switching | - | - | - | - | - | - | - | - | - | - | - | - | + 85 C | Analog Devices Inc./Maxim Integrated | - 40 C | Through Hole | MSL 1 - Unlimited | - | Tube | - | - | Active | - | - | Phantom Clock | 8 B | 5.5 V | 4.5 V | - | - | - | - | -40°C ~ 85°C | - | - | - | - | - | - | - | Phantom Time Chip | - | - | - | - | - | - | - | Clock & Timer ICs | - | - | 4.5V ~ 5.5V | - | - | - | - | - | - | Calendar, Clock | - | - | - | - | - | - | - | - | Parallel | - | - | - | - | - | - | - | - | - | - | Real Time Clocks | - | - | - | - | - | - | HH:MM:SS:hh (12/24 hr) | YY-MM-DD-dd | 1.3mA @ 5V | 2.5V ~ 3.7V | - | - | Leap Year | - | - | - | - | - | - | - | - | ||
![]() DS2415PT&R MAXIM Dallas | In Stock | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | ||
![]() DS1340Z-33 T&R Analog Devices | 10000 |
| Datasheet | - | - | - | Surface Mount | 0805 (2012 Metric) | - | 0805 | RN732A | Backup Switching | - | - | - | - | - | - | - | - | - | - | - | - | + 85 C | KOA Speer Electronics, Inc. | - 40 C | SMD/SMT | MSL 1 - Unlimited | - | Tape & Reel (TR) | - | - | Obsolete | - | - | Serial | - | 5.5 V | 2.97 V | - | - | - | - | -55°C ~ 155°C | - | RN73 | 0.079 L x 0.049 W (2.00mm x 1.25mm) | ±0.25% | - | 2 | ±10ppm/°C | Clock/Calendar | 81.6 kOhms | - | - | Thin Film | - | 0.1W, 1/10W | - | Clock & Timer ICs | - | - | 2.97V ~ 5.5V | - | - | - | - | - | - | Calendar, Clock, Trickle Charger | - | - | - | - | - | - | - | - | I²C, 2-Wire Serial | - | - | - | - | - | - | - | - | - | - | Real Time Clocks | - | - | - | - | - | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | 150µA @ 5.5V | 1.3V ~ 5.5V | - | - | Moisture Resistant | - | - | 0.024 (0.60mm) | - | - | - | Contains Lead | - | ||
![]() 1337BCSRGI Renesas | In Stock | - | - | - | - | - | Surface Mount | 16-SOIC (0.295, 7.50mm Width) | - | 16-SOIC | - | - | - | - | Stainless steel | Round | IP67 | - | - | No | - | - | - | Metal | - | Renesas Electronics America Inc | - | - | - | - | Tube | - | - | Obsolete | - | - | - | - | - | - | - | - | - | Yes | -40°C ~ 85°C | - | - | - | - | - | - | - | Clock/Calendar | - | - | - | - | - | - | - | - | - | - | 1.8V ~ 5.5V | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | I²C | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | - | - | - | - | Alarm, Leap Year, Square Wave Output | - | - | - | - | - | - | - | - | ||
![]() MCP79400-I/ST Micrel | In Stock | - | - | - | - | - | Surface Mount, MLCC | 0603 (1608 Metric) | - | 8-TSSOP | VJ0603 | - | - | - | - | - | - | - | - | - | Lead free / RoHS Compliant | - | - | - | - | Vishay Vitramon | - | - | - | MCP79400IST | Tape & Reel (TR) | - | - | Active | - | - | - | - | - | - | - | - | 50V | - | -55°C ~ 150°C | Tube | VJ | 0.063 L x 0.031 W (1.60mm x 0.80mm) | ±20% | 1 (Unlimited) | - | X7R | Clock/Calendar | - | - | - | - | General Purpose | - | 10000 pF | - | - | - | 1.8 V ~ 5.5 V | - | - | - | MCP79400 | - | - | - | - | - | - | - | - | - | - | - | I²C, 2-Wire Serial | - | - | - | 64B | - | - | - | - | - | - | - | - | - | - | - | - | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1.2µA (Typ) @ 3.3V | 1.3 V ~ 5.5 V | - | - | - | - | - | - | - | 0.038 (0.97mm) | - | - | - | ||
![]() MCP7940M-I/SN Micrel | In Stock | - | - | - | - | - | Surface Mount | Axial | - | Axial | RWR81 | - | - | - | - | - | - | - | - | - | Lead free / RoHS Compliant | - | - | - | - | Vishay Dale | - | - | - | MCP7940MISN | Tape & Reel (TR) | - | - | Active | - | - | - | - | - | - | - | - | - | - | -55°C ~ 250°C | Tube | Military, MIL-PRF-39007, RWR81N | 0.085 Dia x 0.250 L (2.16mm x 6.35mm) | ±1% | 1 (Unlimited) | 2 | ±20ppm/°C | Clock/Calendar | 42.2 Ohms | - | - | Wirewound | - | 1W | - | - | - | - | 1.8 V ~ 5.5 V | - | - | - | MCP7940M | - | - | - | - | - | - | - | - | R (0.01%) | - | - | I²C, 2-Wire Serial | - | - | - | 64B | - | - | - | - | - | - | - | - | - | - | - | - | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1µA @ 5.5V | - | - | - | Military, Moisture Resistant, Non-Inductive | - | - | - | - | - | - | - | - | ||
![]() MCP79410T-I/ST Micrel | In Stock | - | - | - | - | - | Surface Mount | 6-VDFN | - | 8-TSSOP | - | - | - | - | - | - | - | - | - | - | Lead free / RoHS Compliant | - | - | - | - | Microchip Technology | - | - | - | - | Tube | - | - | Active | - | - | - | - | - | - | - | - | - | - | -40°C ~ 105°C | Tape & Reel (TR) | DSC1124 | 0.126 L x 0.098 W (3.20mm x 2.50mm) | - | 1 (Unlimited) | - | - | XO (Standard) | - | - | - | - | - | - | - | - | - | - | 2.25V ~ 3.6V | - | 24 MHz | ±25ppm | MCP79410 | HCSL | - | Enable/Disable | MEMS | 42mA | - | - | - | - | - | 22mA | I²C, 2-Wire Serial | - | - | - | 64B, 1Kb | - | - | - | - | - | - | - | - | - | - | - | - | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1.2µA @ 3.3V | 1.3 V ~ 5.5 V | - | - | Alarm, Leap Year, Square Wave Output, SRAM, Unique ID | - | - | 0.035 (0.90mm) | - | - | - | - | - | ||
![]() MCP7940MT-I/MNY Micrel | In Stock | - | - | - | - | - | Surface Mount | Module | - | - | - | - | - | - | - | - | - | - | - | - | Lead free / RoHS Compliant | - | - | - | - | Radiall USA, Inc. | - | - | - | MCP7940MT-I/MNYDKR | Bulk | - | - | Obsolete | - | - | - | - | - | - | - | - | - | - | -40°C ~ 85°C | Original-Reel® | SPnT | - | - | 1 (Unlimited) | - | - | Clock/Calendar | - | - | - | - | - | - | - | - | - | - | 24V ~ 30V | - | - | - | MCP7940M | - | - | - | - | - | - | - | SP4T | - | - | - | I²C, 2-Wire Serial | - | - | 3GHz | 64B | 50Ohm | - | - | - | - | - | - | 0Hz ~ 3GHz | 0.2dB (max) | 80dB (min) | - | General Purpose | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1µA @ 5.5V | - | - | - | - | - | - | - | - | - | - | - | - | ||
![]() MCP7940MT-I/MS Micrel | In Stock | - | - | - | - | - | Surface Mount, MLCC | 0805 (2012 Metric) | - | 8-MSOP | - | - | - | - | - | - | - | - | - | - | Lead free / RoHS Compliant | - | - | - | - | Vishay Vitramon | - | - | - | MCP7940MT-I/MS-ND MCP7940MT-I/MSTR | Tape & Reel (TR) | - | - | Obsolete | - | - | - | - | - | - | - | - | 200V | - | -55°C ~ 150°C | Tape & Reel (TR) | GA | 0.079 L x 0.049 W (2.00mm x 1.25mm) | ±5% | 1 (Unlimited) | - | C0G, NP0 | Clock/Calendar | - | - | - | - | Automotive | - | 47 pF | - | - | - | 1.8 V ~ 5.5 V | - | - | - | MCP7940M | - | - | - | - | - | - | - | - | - | - | - | I²C, 2-Wire Serial | - | - | - | 64B | - | - | - | - | - | - | - | - | - | - | - | - | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 1µA @ 5.5V | - | - | - | Epoxy Mountable, High Temperature | - | - | - | - | 0.057 (1.45mm) | - | - | AEC-Q200 | ||
![]() DS1501YE Analog Devices | In Stock | - | Datasheet | - | - | Surface Mount | Surface Mount | 28-TSSOP (0.465, 11.80mm Width) | 28 | 28-TSOP | DS1501 | - | Royalohm | 12064 | - | - | - | 1000 | - | - | - | Royalohm | - | - | - | Analog Devices Inc./Maxim Integrated | - | PCB Mount | - | - | Tray | - | - | Obsolete | - | Details | - | - | - | - | - | - | - | - | 0°C ~ 70°C | Reel | SP | - | - | - | - | - | Clock/Calendar | - | 70 °C | 0 °C | - | - | - | - | Resistors | - | Thick Film | 4.5V ~ 5.5V | - | - | - | - | - | - | - | - | - | - | 5 V | - | - | - | - | Parallel | 5.5 V | 4.5 V | - | 256 B | - | - | - | - | - | Clock | Thick Film Resistors | - | - | - | - | - | - | HH:MM:SS | YY-MM-DD-dd | 5mA @ 4.5V ~ 5.5V | 2.5V ~ 3.7V | - | - | Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K | Thick Film Resistors - SMD | - | - | - | - | No | Contains Lead | - | ||
![]() DS12R885S-5 T&R Analog Devices | 15 |
| Datasheet | Production (Last Updated: 3 months ago) | Tin | Surface Mount | Surface Mount | 24-SOIC (0.295, 7.50mm Width) | 24 | 24-SOIC | DS12R885 | Backup Switching | ITT Cannon | - | - | - | - | 1 | - | - | - | ITT Cannon | PRODUCTION (Last Updated: 3 weeks ago) | - | + 85 C | Analog Devices Inc./Maxim Integrated | - 40 C | SMD/SMT | - | - | Tape & Reel (TR) | - | - | Active | - | Details | Multiplexed | 114 B | 5.5 V | 4.5 V | - | - | - | - | -40°C ~ 85°C | Tape & Reel | - | - | - | - | - | - | Clock/Calendar | - | 85 °C | -40 °C | - | - | - | - | Circular Connectors | - | - | 4.5V ~ 5.5V | - | - | - | - | - | - | Calendar, Clock | - | - | - | 5 V | - | - | - | - | Parallel | 5.5 V | 4.5 V | - | 114 B | - | - | - | - | - | Clock | Circular MIL Spec Connector | - | - | - | - | - | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 2mA @ 4.5V ~ 5.5V | 2V ~ 3.05V | - | - | Alarm, Leap Year, NVSRAM, Square Wave Output, Trickle-Charger | Circular MIL Spec Connector | - | - | - | - | No | Lead Free | - | ||
![]() 1338B-18DVGI Renesas | 116 |
| - | - | Copper, Silver, Tin | Through Hole | Surface Mount | 8-TSSOP, 8-MSOP (0.118, 3.00mm Width) | - | 8-TSSOP | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | Renesas Electronics America Inc | - | - | - | - | Tube | - | - | Active | - | Non-Compliant | - | - | - | - | - | - | - | - | -40°C ~ 85°C (TA) | - | - | - | 1 % | - | - | 300 ppm/°C | Clock/Calendar | 25 mΩ | 275 °C | -55 °C | Wirewound | - | - | - | Clock & Timer ICs | 5 W | - | 1.4V ~ 5.5V | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | I²C | - | - | - | 56B | - | - | - | - | - | - | Real Time Clocks | - | - | - | - | - | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 2µA @ 3.3V | 1.3V ~ 3.7V | - | - | Leap Year, NVSRAM, Square Wave Output | - | 5 mm | - | 24 mm | - | No | - | - | ||
![]() MCP79400TISN Micro Commercial Components | In Stock | - | - | - | - | - | - | - | - | - | - | - | AIRPAX | - | - | - | - | 3 | Not Illuminated | - | - | Sensata | - | - | - | - | - | Panel Mount | - | - | - | - | - | - | - | - | - | - | - | - | AIRPAX | 3.174657 oz | - | - | - | - | LEL/LML | - | - | - | - | - | Hydraulic-Magnetic | - | - | - | - | - | - | - | Circuit Breakers | - | - | - | 10 A | - | - | - | - | Bullet | - | - | - | Handle | - | - | - | - | - | - | - | - | - | - | - | - | 1 Pole | - | - | - | Circuit Breakers | - | - | - | - | - | - | - | - | - | - | - | Circuit Protectors | - | Circuit Breakers | - | - | - | - | - | - | - | ||
![]() RX6110SA BX PURE SN Epson | 9 |
| - | - | - | - | Surface Mount | 14-SOIC (0.197, 5.00mm Width) | - | 14-SOP | - | - | Phoenix Contact | - | - | - | - | 100 | - | - | - | Phoenix Contact | - | - | - | EPSON | - | - | - | - | Tape & Reel (TR) | - | - | Active | - | - | - | - | - | - | - | 0.006582 oz | - | - | -40°C ~ 85°C | Reel | RX6110SA | - | - | - | - | - | Clock/Calendar | - | - | - | - | - | - | - | Wire & Cable Management | - | - | 1.6V ~ 5.5V | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | I²C, SPI | - | - | - | 16B | - | - | - | - | - | - | Wire Labels & Markers | - | - | - | - | - | - | HH:MM:SS | YY-MM-DD | 2.1µA @ 3V | 1.1V ~ 5.5V | - | - | Alarm, RAM | Wire Labels & Markers | - | - | - | - | - | - | - | ||
![]() DS1747WP-120IND Analog Devices | 103 |
| Datasheet | - | Tin | Surface Mount | Surface Mount | 34-PowerCap™ Module | 34 | 34-PowerCap Module | DS1747 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | Analog Devices Inc./Maxim Integrated | - | - | MSL 3 - 168 hours | - | Tube | - | - | Obsolete | - | Compliant | - | - | - | - | - | - | - | - | -40°C ~ 85°C | Bulk | - | - | - | - | - | - | Clock/Calendar | - | 85 °C | -40 °C | - | - | - | - | - | - | - | 2.97V ~ 3.63V | - | - | - | - | - | - | - | - | - | - | 3.3 V | - | - | - | - | Parallel | 3.63 V | 2.97 V | - | 512KB | - | - | - | - | - | Clock | - | - | - | - | - | - | - | HH:MM:SS (24 hr) | YY-MM-DD-dd | 2mA @ 3.3V | 3V | - | - | Leap Year, NVSRAM, Y2K | - | - | - | - | - | No | Contains Lead | - | ||
![]() DS1251YP-70IND Analog Devices | 46 |
| Datasheet | - | - | - | Surface Mount | 34-PowerCap™ Module | - | 34-PowerCap Module | DS1251 | Backup Switching | - | - | - | - | - | - | - | - | - | - | - | - | + 85 C | Analog Devices Inc./Maxim Integrated | - 40 C | SMD/SMT | MSL 3 - 168 hours | - | Tube | -40 - 105 | -25 - 105 | Obsolete | 4 | - | Parallel | 512 kB | 5.5 V | 4.5 V | - | - | - | - | -40°C ~ 85°C | - | - | - | - | - | - | - | Phantom Time Chip | - | - | - | - | - | - | - | Clock & Timer ICs | - | - | 4.5V ~ 5.5V | - | - | - | - | - | - | Calendar, Clock, NV Timekeeping RAM | - | - | - | - | - | - | - | - | Parallel | - | - | - | 512kb | - | - | - | - | - | - | Real Time Clocks | - | - | - | - | - | - | HH:MM:SS:hh (12/24 hr) | Day; Date; Month; Year | 10mA @ 5V | 3V | - | - | Leap Year, NVSRAM | - | - | - | - | - | - | - | - | ||
![]() DS1673E-5 T&R Analog Devices | 9 |
| Datasheet | Production (Last Updated: 3 weeks ago) | - | Surface Mount | Surface Mount | 20-TSSOP (0.173, 4.40mm Width) | 20 | 20-TSSOP | DS1673 | Backup Switching | - | - | - | - | - | - | - | - | - | - | PRODUCTION (Last Updated: 3 weeks ago) | - | + 70 C | Analog Devices Inc./Maxim Integrated | 0 C | SMD/SMT | - | - | Tape & Reel (TR) | -40 - 105 | 0 - 80 | Obsolete | 4 | Compliant | Serial, 3-Wire | - | 5.5 V | 4.5 V | - | - | - | - | 0°C ~ 70°C | Tape & Reel (TR) | - | - | - | - | - | - | Portable System Controller | - | 70 °C | 0 °C | - | - | - | - | Clock & Timer ICs | - | - | 4.5V ~ 5.5V | - | - | - | - | - | - | Alarm, Calendar, Clock, NV SRAM Control, Watchdog Timekeeper | - | - | - | 5 V | - | - | - | - | Serial | 5.5 V | 4.5 V | - | - | - | - | - | - | - | Clock | Real Time Clocks | - | - | - | - | - | - | HH:MM:SS | YY-MM-DD-dd | 300µA @ 5V | 2.5V ~ 3.7V | - | - | Alarm, Leap Year, Watchdog Timer | - | - | - | - | - | No | Lead Free | - | ||
![]() DS1685Q-5 Analog Devices | 13 |
| Datasheet | - | - | - | Surface Mount | 28-LCC (J-Lead) | - | 28-PLCC (11.51x11.51) | DS1685 | Backup Switching | - | - | - | - | - | - | - | - | - | - | - | - | + 70 C | Analog Devices Inc./Maxim Integrated | 0 C | SMD/SMT | - | - | Tube | -25 - 80 | 0 - 80 | Obsolete | 4 | - | Multiplexed | 242 B | 5.5 V | 4.5 V | - | - | - | - | 0°C ~ 70°C | - | - | - | - | - | - | - | Clock/Calendar | - | - | - | - | - | - | - | Clock & Timer ICs | - | - | 4.5V ~ 5.5V | - | - | - | - | - | - | Alarm, Calendar, Clock | - | - | - | - | - | - | - | - | Parallel | - | - | - | 242B | - | - | - | - | - | - | Real Time Clocks | - | - | - | - | - | - | HH:MM:SS (12/24 hr) | YY-MM-DD-dd | 3mA @ 5V | 2.5V ~ 3.7V | - | - | Alarm, NVSRAM, Square Wave Output, Y2K | - | - | - | - | - | - | - | - |