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MICROCHIP MCP7940M-I/SN
RTC IC, Date Time Format (Date/Month/Year hh:mm:ss), I2C, 1.8 V to 5.5 V, SOIC-8
- Manufacturer:
- MICROCHIP MICROCHIP
- Manufacturer Part No:
- MCP7940M-I/SN
- Order Code:
- 2098890
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- Product Range
- -
- Technical Datasheet:
- MCP7940M-I/SN Datasheet
- ECAD / MCAD
-
Product Overview
MCP7940M-I/SN is a 1.8V - 5.5V I2C™ serial low-cost I2C real-time clock/calendar with SRAM. It 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. On-chip digital trimming can be used to adjust for frequency variance caused by crystal tolerance and temperature.
- Leap year compensated to 2399, 12/24 hour modes
- Oscillator frequency is 32.768KHz typ (VCC = +1.8V to 5.5V, TA = -40°C to +85°C)
- On-chip digital trimming/calibration: ±1 PPM resolution, ±129 PPM range
- Dual programmable alarms
- Versatile Output Pin: clock output with selectable frequency, alarm output, general purpose output
- Timekeeping current is 1.2µA typ (VCC = 3.3V, VCC = +1.8 to 5.5V, TA = -40 to +85°C)
- 64-byte SRAM, 2-Wire serial interface, I2C compatible, I2C clock rate up to 400KHz
- Output leakage current is ±1µA (VOUT = VSS or VCC, VCC = +1.8 to 5.5V, TA = -40 to +85°C)
- Oscillator timeout period is 1ms min (VCC = +1.8V to 5.5V, TA = -40°C to +85°C)
- 8 pin SOIC package, industrial operating temperature range from -40 to 85°C
Warnings
ESD sensitive device, take proper precaution while handling the device. 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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- :
- DD:MM:YYYY
- :
- HH:MM:SS
- :
- RTC
- :
- 1.8V
- :
- 5.5V
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- SOIC
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- 8Pins
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- I2C
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- -40°C
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- 85°C
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- -
- :
- AEC-Q100
- :
- MSL 1 - Unlimited
Technical Documents (3)
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Extra stock is available upon order to the Supplier Lead Time which is approximately 9/22/25
884 deliver in 3-4 business days from our UK warehouse
Due to market conditions delivery times are for general guidance only and may be subject to change at short notice
¥100.57
(¥110.63 Inc. JCT)
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| Quantity | Price (Incl JCT) |
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| 1+ | ¥100.57 (¥110.63) |
| 25+ | ¥100.23 (¥110.25) |
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