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MCP7940N-E/SN The Microchip Technology MCP7940N-E/SN is a Real Time Clock IC with an I2C interface. It features 64B of memory and operates within a voltage range of 1.3V to 5.5V.
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MCP7940N-E/SN

Available from 1 distributors
Mfr Name: Microchip Technology
Microchip Technology
The Microchip Technology MCP7940N-E/SN is a Real Time Clock IC with an I2C interface. It features 64B of memory and operates within a voltage range of 1.3V to 5.5V.
✓ Total Stock: 9,388 pcs
$ Price Range: $5.21

MCP7940N-E/SN Available from 1 distributor

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✓ Non-Authorised
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9,388 pcs
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MCP7940N-E/SN Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Date Format
Features
Interface
Memory Size
Mounting Style
Mounting Type
Operating Temperature
Supplier Device Package
Time Format
Type
Voltage
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MCP7940N-E/SN Description

Short technical summary and product information.

The MCP7940N-E/SN from Microchip Technology is a Real Time Clock (RTC) integrated circuit designed for accurate timekeeping. This device supports both I2C and 2-Wire serial interfaces, allowing for flexible integration into various embedded systems.

 

Key specifications include a memory size of 64B, an operating voltage range of 1.3V to 5.5V, and an operating temperature range of -40°C to 125°C. The RTC offers features such as alarm functions, leap year calculation, and square wave output. It supports both 12-hour and 24-hour time formats (HH:MM:SS) and a date format of YY-MM-DD-dd.

 

Packaged in an 8-SOIC (0.154", 3.90mm Width) surface-mount case, the MCP7940N-E/SN is suitable for automated assembly processes. Its low operating current of 1.2µA at 3.3V makes it an energy-efficient choice for battery-backed applications.

MCP7940N-E/SN Quick Information

Product Type: Real Time Clock
Canonical Name: MCP7940N-E/SN Real Time Clock IC
Subcategory: Clock & Timer ICs

MCP7940N-E/SN Compliance

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

MCP7940N-E/SN Estimated Pricing

Qty Low High
1+ $5.21 $5.21

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

MCP7940N-E/SN Features

  • Real Time Clock IC with I2C interface.
  • 64B memory for configuration and data.
  • Wide operating voltage from 1.3V to 5.5V.
  • Operates across -40°C to 125°C temperature range.
  • Surface mount 8-SOIC package for easy assembly.

MCP7940N-E/SN Applications

  • Ideal for embedded system timekeeping.
  • Suitable for battery-backed applications.
  • Used in devices requiring accurate date/time.
  • Supports alarm and calendar functions.

MCP7940N-E/SN FAQs

4 frequently asked questions generated from this part’s specifications.
What is the operating voltage range for the MCP7940N-E/SN?

The MCP7940N-E/SN operates from 1.3V to 5.5V.

What package type is the MCP7940N-E/SN available in?

The MCP7940N-E/SN is available in an 8-SOIC package.

What is the operating temperature range for this Real Time Clock IC?

The operating temperature range is -40°C to 125°C.

Is the MCP7940N-E/SN RoHS compliant?

Yes, the MCP7940N-E/SN is RoHS3 Compliant.

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