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RTC-72423A: PURE SN is listed in the Real Time Clock range at ChipApex. The manufacturer field lists EPSON. Its product description is IC RTC CLK/CALENDAR PAR 24SOP. Review the specifications below when checking this part for your BOM.
Real Time Clock specifications for RTC-72423A: PURE SN
- Description：IC RTC CLK/CALENDAR PAR 24SOP
- Series：RTC-72423
- Package：Bulk
- Mfr：EPSON
- Type：Clock/Calendar
- Features：Leap Year
- Memory Size：-
- Time Format：HH:MM:SS (12/24 hr)
- Date Format：-
- Interface：Parallel
- Voltage - Supply：4.5V ~ 5.5V
- Voltage - Supply, Battery：-
- Current - Timekeeping (Max)：5µA ~ 10µA @ 2V ~ 5V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Grade：-
- Qualification：-
- Package / Case：24-SOIC (0.311", 7.90mm Width)
- Supplier Device Package：24-SOP
Real Time Clock datasheet and documents for RTC-72423A: PURE SN
Real Time Clock Overview
The RTC-72423A: PURE SN is a surface-mount real-time clock IC from the Epson RTC-72423 series. It provides parallel interface communication for time and calendar data in HH:MM:SS format with 12/24-hour selection. The device operates within a supply voltage range of 4.5V to 5.5V and draws a maximum current of 10µA at 5V. It features an accuracy of ±20ppm and functions across a temperature range of -40°C to +85°C. The component is housed in a 24-pin package.
Real Time Clock Feature Summary
- Parallel interface for direct system connection
- ±20ppm frequency stability
- Integrated leap year compensation
- Surface mount 24-pin packaging
Real Time Clock Applications
- Industrial control systems requiring precise timing
- Consumer electronics with real-time tracking needs
- Telecommunications equipment synchronization
Real Time Clock Procurement Notes
This component is listed as End-of-Life (EOL) by the manufacturer. Distribution availability is restricted, with some major distributors indicating no sales in certain regions. Verification of current stock status and alternative sourcing channels is required before procurement planning.
Real Time Clock Selection Notes
Select this part only if a parallel interface is mandatory for the design. Verify that the 24-pin footprint matches the PCB layout. Consider the ±20ppm accuracy against system requirements. Due to EOL status, evaluate long-term supply chain risks and potential redesign needs.
Real Time Clock Part Context
The RTC-72423A belongs to the RTC-72423 family of real-time clocks. It shares functional similarities with the RTC-72423B but differs in package type. The suffix ':PURE SN' indicates specific material compliance and manufacturing details defined by Epson Timing.
Real Time Clock Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Epson's official discontinuation notices or technical support for validated replacement recommendations.
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