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MICROCHIP  MCP7940M-I/MS  RTC, I2C, 64BYTES SRAM, 8MSOP

Technical Data Sheet (980.68KB) EN See all Technical Docs

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MICROCHIP MCP7940M-I/MS
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Product Overview

The MCP7940M-I/MS is an I²C™ Real-time Clock/Calendar (RTCC) tracks time using internal counters for hours, minutes, seconds, days, months, years and day of week. Alarms can be configured on all counters up to and including months. For usage and configuration, the MCP7940M supports I²C communications up to 400kHz. The open-drain, multi-functional output can be configured to assert on an alarm match, to output a selectable frequency square wave or as a general purpose output. The MCP7940M is designed to operate using a 32.768kHz tuning fork crystal with external crystal load capacitors. On-chip digital trimming can be used to adjust for frequency variance caused by crystal tolerance and temperature.
  • On-chip digital trimming/calibration - ±1PPM resolution, ±129PPM range
  • Dual programmable alarms
  • Versatile output pin - Clock output with selectable frequency
  • 1.2µA at 3.3V Operating from VCC, low typical timekeeping current
  • 64-byte SRAM User memory
  • 2-wire serial interface, I²C™ compatible
ESD sensitive device, take proper precaution while handling the device.

Product Information

Date Format:
DD:MM:YYYY
Clock Format:
HH:MM:SS
Clock IC Type:
RTC
Supply Voltage Min:
1.8V
Supply Voltage Max:
5.5V
Clock IC Case Style:
MSOP
No. of Pins:
8Pins
IC Interface Type:
I2C
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Each
Product Range:
-
Automotive Qualification Standard:
AEC-Q100
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Industrial;
  • Clock & Timing;
  • Industrial;
  • Automotive

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.0001

Associated Products