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MCP7940M-I/MS The Microchip Technology MCP7940M-I/MS is a Clock/Calendar IC featuring an I2C interface and a supply voltage range of 1.8V to 5.5V. It is supplied in an 8-MSOP surface mount package.
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MCP7940M-I/MS

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology MCP7940M-I/MS is a Clock/Calendar IC featuring an I2C interface and a supply voltage range of 1.8V to 5.5V. It is supplied in an 8-MSOP surface mount package.
✓ Total Stock: 300 pcs
$ Price Range: $5.21

MCP7940M-I/MS Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Smaxon Electronics ✓
Non-Authorised Inventory information
300 pcs
On Request
300 pcs On Request 1 On Request On Request 14+ On Request On Request
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MCP7940M-I/MS Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Date Format
Features
Interface
Lead Spacing
Memory Size
Mounting Type
Operating Temperature
Supplier Device Package
Time Format
Type
Voltage
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MCP7940M-I/MS Description

Short technical summary and product information.

The MCP7940M-I/MS from Microchip Technology is a Real-Time Clock (RTC) integrated circuit designed for accurate timekeeping applications. It supports both 12/24 hour time formats and YY-MM-DD-dd date formats, with features including an alarm, leap year calculation, and square wave output.

 

This IC operates within a voltage range of 1.8V to 5.5V and consumes a maximum of 1µA at 5.5V for timekeeping. It features 64B of SRAM for data storage. The interface is I²C, 2-Wire Serial, enabling easy communication with microcontrollers.

 

Designed for surface mounting, the MCP7940M-I/MS comes in an 8-MSOP package, specifically an 8-TSSOP, 8-MSOP with a 3.00mm width. The operating temperature range is -40°C to 85°C, making it suitable for a variety of environmental conditions. Key features include alarm functionality, leap year support, and square wave output generation.

MCP7940M-I/MS Quick Information

Product Type: Real Time Clock IC
Canonical Name: MCP7940M-I/MS Clock/Calendar IC
Subcategory: Real-Time Clocks (RTC)

MCP7940M-I/MS Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

MCP7940M-I/MS Estimated Pricing

Qty Low High
1+ $5.21 $5.21

Estimated market price range - modelled values for guidance only, not live distributor offers.

MCP7940M-I/MS Features

  • Provides accurate time and date tracking.
  • Supports 12/24 hour and YY-MM-DD-dd formats.
  • Features alarm, leap year, and square wave output.
  • Low timekeeping current of 1µA at 5.5V.
  • Surface mount 8-MSOP package for easy integration.

MCP7940M-I/MS Applications

  • Ideal for embedded system timekeeping.
  • Suitable for battery-backed applications.
  • Used in devices requiring calendar functions.
  • Applications needing alarm notifications.

MCP7940M-I/MS FAQs

5 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the MCP7940M-I/MS?

The operating voltage range is 1.8V to 5.5V.

What is the operating temperature range for this RTC IC?

The operating temperature range is -40°C to 85°C.

What interface does the MCP7940M-I/MS use?

It uses an I²C, 2-Wire Serial interface.

How much SRAM is available on the MCP7940M-I/MS?

It has 64B of SRAM.

What package type is the MCP7940M-I/MS supplied in?

It is supplied in an 8-MSOP package.

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