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MCP79402-I/SN

Alarm RTC IC, Year/Month/Week/Date/Hr/Min/Sec 12Hr / 24Hr, I2C, 1.8 V to 5.5 V, SOIC-8

Date/Lot Code
MICROCHIP MCP79402-I/SN
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Manufacturer:
MICROCHIP MICROCHIP
Manufacturer Part No:
MCP79402-I/SN
Order Code:
2361119
Technical Datasheet:
MCP79402-I/SN   Datasheet
See all Technical Docs

Product Overview

The MCP79402-I/SN is a low-power Real-time Clock (RTC) uses digital timing compensation for an accurate clock/calendar, a programmable output control for versatility, a power sense circuit that automatically switches to the backup supply and non-volatile memory for data storage. Using a 32.768kHz crystal, it tracks time using several internal registers. For communication, the MCP7940X uses the I²C™ bus. The clock/calendar automatically adjusts for months with fewer than 31 days, including corrections for leap years. The clock operates in either the 24-hour or 12-hour format with an AM/PM indicator and settable alarm(s) to the second, minute, hour, day of the week, date or month. Along with the battery-backed SRAM memory, a 64-bit protected EEPROM space is available for unique ID or MAC address to be programmed at the factory or by the end user.
  • On-chip digital trimming/calibration - 1ppm Resolution
  • Dual alarm with single output
  • Programmable open-drain output control - CLKOUT with 4 selectable frequencies and alarm output
  • 64-byte SRAM, battery backed
  • Automatic VCC switchover to VBAT backup supply
  • Power-fail time-stamp for battery switchover
  • Low-power CMOS technology
  • 1 Million erase/write cycles for unique ID
  • 64-bit Unique ID - User or factory programmable and protected EEPROM

Applications

Clock & Timing

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Product Information

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:
YYYY:MM:WK:DD:Hr:Min:Secs

:
12Hr / 24Hr

:
Alarm RTC

:
1.8V

:
5.5V

:
SOIC

:
8Pins

:
I2C

:
-40°C

:
85°C

:
-

:
MSL 1 - Unlimited

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Technical Documents (4)

CAD Downloads

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Terms and Conditions

CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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Back order today stock arriving week commencing 2/11/23

Due to market conditions delivery times are for general guidance only and may be subject to change at short notice

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