Datasheets
MCP7940N-E/SN by: Microchip Technology Inc

REAL TIME CLOCK

Part Details for MCP7940N-E/SN by Microchip Technology Inc

Results Overview of MCP7940N-E/SN by Microchip Technology Inc

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

MCP7940N-E/SN Information

MCP7940N-E/SN by Microchip Technology Inc is a Timer or RTC.
Timers or RTCs are under the broader part category of Microcontrollers and Processors.

Microcontrollers (MCUs) are small, low-power integrated circuits used to control embedded systems. Microcontrollers are primarily used to automate and control devices. Read more about Microcontrollers and Processors on our Microcontrollers and Processors part category page.

Price & Stock for MCP7940N-E/SN

Part # Distributor Description Stock Price Buy
DISTI # 72AC6176
Newark Rtcc, -40 To 125Deg C, Soic-8, Date Format:Day, Date, Month, Year, Clock Format:Hh:Mm:Ss, Clock Ic Type:Rtcc, Supply Voltage Min:1.8V, Supply Voltage Max:5.5V, Clock Ic Case Style:Soic, No. Of Pins:8Pins, Ic Interface Type:I2C, Rohs Compliant: Yes |Microchip MCP7940N-E/SN RoHS: Compliant Min Qty: 1 Package Multiple: 1 Date Code: 1 Container: Bulk 640
  • 1 $0.9200
  • 10 $0.8850
  • 25 $0.8500
  • 50 $0.8310
  • 100 $0.8120
$0.8120 / $0.9200 Buy Now
DISTI # MCP7940N-E/SN-ND
DigiKey IC RTC CLK/CALENDAR I2C 8SOIC Min Qty: 1 Lead time: 4 Weeks Container: Tube 7134
In Stock
  • 1 $0.9200
  • 25 $0.8500
  • 100 $0.8125
$0.8125 / $0.9200 Buy Now
DISTI # MCP7940N-E/SN
Avnet Americas RTC IC, YY-MM-DD-DW, HH:MM:SS: 12Hr / 24Hr, I2C, 1.8 V to 5.5 V, 8 Pins, NSOIC - Rail/Tube (Alt: MCP7940N-E/SN) RoHS: Compliant Min Qty: 400 Package Multiple: 100 Lead time: 4 Weeks, 0 Days Container: Tube 0
  • 1 $0.9200
  • 25 $0.8500
  • 100 $0.8100
$0.8100 / $0.9200 Buy Now
DISTI # 579-MCP7940N-E/SN
Mouser Electronics Real Time Clock I2C GP RTCC 64B SRAM ExT SER EE, ExT RoHS: Compliant 5204
  • 1 $0.8900
  • 10 $0.8860
  • 25 $0.8500
  • 100 $0.8120
$0.8120 / $0.8900 Buy Now
DISTI # V99:2348_06455064
Arrow Electronics Real Time Clock Serial 64byte Clock/Calendar/Alarm/Battery Backup 8-Pin SOIC N Tube RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 4 Weeks Date Code: 2311 Americas - 155
  • 1 $0.8285
  • 25 $0.8250
$0.8250 / $0.8285 Buy Now
DISTI # MCP7940N-E/SN
Microchip Technology Inc RTCC with battery-backed SRAM, SOIC, Projected EOL: 2039-10-26 COO: Thailand ECCN: EAR99 RoHS: Compliant Lead time: 1 Weeks, 0 Days Container: Tube 139960
  • 1 $0.9200
  • 25 $0.8500
  • 100 $0.8100
  • 1,000 $0.7700
  • 5,000 $0.7400
$0.7400 / $0.9200 Buy Now
DISTI # 70451928
RS I2C GP RTCC, 64B SRAM, EXT8 SOIC 3.90mm(.150in) TUBE Min Qty: 400 Package Multiple: 1 Lead time: 43 Weeks, 0 Days Container: Bulk 0
  • 400 $0.9800
  • 4,000 $0.9300
  • 20,000 $0.8800
  • 40,000 $0.8300
$0.8300 / $0.9800 RFQ
Onlinecomponents.com Battery-Backed I2C Real Time Clock/Calendar - 64-byte SRAM - 1.8 to 5.5VDC - 12/24 hour - I2C - -40°C to +125°C - 8-lead SOIC RoHS: Compliant 400 In Stock
140000 Factory Stock
  • 100 $0.9290
  • 300 $0.8900
  • 500 $0.8770
  • 1,000 $0.8440
  • 2,500 $0.8020
  • 5,000 $0.7900
$0.7900 / $0.9290 Buy Now
DISTI # 88031733
Verical Real Time Clock Serial 64byte Clock/Calendar/Alarm/Battery Backup 8-Pin SOIC N Tube RoHS: Compliant Min Qty: 100 Package Multiple: 100 Date Code: 2332 Americas - 400
  • 100 $1.2077
  • 300 $1.1570
  • 500 $1.1401
  • 1,000 $1.0972
  • 2,500 $1.0426
$1.0426 / $1.2077 Buy Now
DISTI # 67009676
Verical Real Time Clock Serial 64byte Clock/Calendar/Alarm/Battery Backup 8-Pin SOIC N Tube RoHS: Compliant Min Qty: 7 Package Multiple: 1 Date Code: 2311 Americas - 155
  • 7 $0.8285
$0.8285 Buy Now
NAC I2C GP RTCC, 64B SRAM, EXT - Package: 8 SOIC 3.90mm(.150in) TUBE RoHS: Compliant Min Qty: 400 Package Multiple: 100 Container: Tube 0
  • 1 $1.0000
  • 100 $0.9000
  • 500 $0.8300
  • 1,000 $0.8100
$0.8100 / $1.0000 Buy Now
DISTI # MCP7940N-E/SN
Avnet Silica RTC IC YYMMDDDW HHMMSS 12Hr 24Hr I2C 18 V to 55 V 8 Pins NSOIC (Alt: MCP7940N-E/SN) RoHS: Compliant Min Qty: 100 Package Multiple: 100 Lead time: 6 Weeks, 0 Days Silica - 0
Buy Now
DISTI # MCP7940N-E/SN
EBV Elektronik RTC IC YYMMDDDW HHMMSS 12Hr 24Hr I2C 18 V to 55 V 8 Pins NSOIC (Alt: MCP7940N-E/SN) RoHS: Compliant Min Qty: 100 Package Multiple: 100 Lead time: 5 Weeks, 0 Days EBV - 0
Buy Now
Master Electronics Battery-Backed I2C Real Time Clock/Calendar - 64-byte SRAM - 1.8 to 5.5VDC - 12/24 hour - I2C - -40°C to +125°C - 8-lead SOIC RoHS: Compliant 400 In Stock
140000 Factory Stock
  • 100 $0.9290
  • 300 $0.8900
  • 500 $0.8770
  • 1,000 $0.8440
  • 2,500 $0.8020
  • 5,000 $0.7900
$0.7900 / $0.9290 Buy Now

Part Details for MCP7940N-E/SN

MCP7940N-E/SN CAD Models

There are no models available for this part yet.

Sign in to request this CAD model.

Register or Sign In

MCP7940N-E/SN Part Data Attributes

MCP7940N-E/SN Microchip Technology Inc
Buy Now Datasheet
Compare Parts:
MCP7940N-E/SN Microchip Technology Inc REAL TIME CLOCK
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer MICROCHIP TECHNOLOGY INC
Package Description SOIC-8
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8542.39.00.01
Factory Lead Time 4 Weeks
Samacsys Manufacturer Microchip
Clock Frequency-Max 0.032 MHz
External Data Bus Width
Information Access Method SERIAL(I2C)
Interrupt Capability Y
JESD-30 Code R-PDSO-G8
JESD-609 Code e3
Length 4.9 mm
Moisture Sensitivity Level 1
Number of Terminals 8
Number of Timers
On Chip Data RAM Width 8
Operating Temperature-Max 125 °C
Operating Temperature-Min -40 °C
Package Body Material PLASTIC/EPOXY
Package Code SOP
Package Equivalence Code SOP8,.23
Package Shape RECTANGULAR
Package Style SMALL OUTLINE
Peak Reflow Temperature (Cel) 260
Qualification Status Not Qualified
RAM (words) 64
Screening Level TS 16949
Seated Height-Max 1.75 mm
Supply Current-Max 0.4 mA
Supply Voltage-Max 5.5 V
Supply Voltage-Min 1.8 V
Supply Voltage-Nom 2.5 V
Surface Mount YES
Technology CMOS
Temperature Grade AUTOMOTIVE
Terminal Finish Matte Tin (Sn)
Terminal Form GULL WING
Terminal Pitch 1.27 mm
Terminal Position DUAL
Time-Min SECONDS
Time@Peak Reflow Temperature-Max (s) 30
Volatile YES
Width 3.9 mm
uPs/uCs/Peripheral ICs Type TIMER, REAL TIME CLOCK

Alternate Parts for MCP7940N-E/SN

This table gives cross-reference parts and alternative options found for MCP7940N-E/SN. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of MCP7940N-E/SN, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Manufacturer Composite Price Description Compare
MCP7940NT-E/SN Microchip Technology Inc Check for Price MCP7940NT-E/SN MCP7940N-E/SN vs MCP7940NT-E/SN
Part Number Manufacturer Composite Price Description Compare
MCP7940MT-I/SN Microchip Technology Inc $0.7125 REAL TIME CLOCK MCP7940N-E/SN vs MCP7940MT-I/SN
MCP7940N-I/MS Microchip Technology Inc $0.7928 REAL TIME CLOCK, PDSO8, PLASTIC, MSOP-8 MCP7940N-E/SN vs MCP7940N-I/MS
MCP7940NT-I/SN Microchip Technology Inc $0.8335 REAL TIME CLOCK, PDSO8, 3.90 MM, ROHS COMPLIANT, PLASTIC, SOIC-8 MCP7940N-E/SN vs MCP7940NT-I/SN
MCP7940N-I/SN Microchip Technology Inc $0.8554 REAL TIME CLOCK, PDSO8, 3.90 MM, ROHS COMPLIANT, PLASTIC, SOIC-8 MCP7940N-E/SN vs MCP7940N-I/SN
MCP7940N-I/P Microchip Technology Inc $0.9026 MCP7940N-I/P MCP7940N-E/SN vs MCP7940N-I/P
MCP7940NT-I/ST Microchip Technology Inc $1.0040 REAL TIME CLOCK, PDSO8, 4.40 MM, PLASTIC, TSSOP-8 MCP7940N-E/SN vs MCP7940NT-I/ST
MCP7940NT-E/MS Microchip Technology Inc $1.0805 MCP7940NT-E/MS MCP7940N-E/SN vs MCP7940NT-E/MS
MCP7940N-E/MS Microchip Technology Inc $1.0805 MCP7940N-E/MS MCP7940N-E/SN vs MCP7940N-E/MS
MCP7940MT-I/MNY Microchip Technology Inc $50.7140 REAL TIME CLOCK MCP7940N-E/SN vs MCP7940MT-I/MNY
MCP7940NT-I/MS Microchip Technology Inc Check for Price REAL TIME CLOCK, PDSO8, PLASTIC, MSOP-8 MCP7940N-E/SN vs MCP7940NT-I/MS

MCP7940N-E/SN Related Parts

MCP7940N-E/SN Frequently Asked Questions (FAQ)

  • The MCP7940N-E/SN can support clock frequencies up to 32 kHz.

  • The MCP7940N-E/SN automatically accounts for leap years, so no additional programming is required.

  • Yes, the MCP7940N-E/SN has a battery input pin (VBAT) that allows it to maintain the time and date even when the main power supply is removed.

  • The internal oscillator on the MCP7940N-E/SN has an accuracy of ±2 minutes per year at 25°C.

  • Yes, the MCP7940N-E/SN has a time-zone offset register that allows it to be used in multiple-time-zone applications.

Share by Email

Something went wrong!
Please enter a valid e-mail address
Email sent!
Recipient Email:
Add a recipient
Hello!

We are passing along some cool findings on Findchips sent to you from .

The data is for MCP7940N-E/SN by Microchip Technology Inc.
They’ve also added a data comparison to this page with by .


Click on the link below to check it out on Findchips.com.

Update Alert Settings for: MCP7940N-E/SN by Microchip Technology Inc

Select Manufacturer
Which Manufacturer of MCP7940N-E/SN would you like to use for your alert(s)?
  • Please alert me when MCP7940N-E/SN inventory levels are or equal to a quantity of from one of my selected distributors.
  • Also alert me for MCP7940N-E/SN alternates
    An alert is already set for the following part(s): . Any existing alert will be overwritten and set as a new alert.
No pricing information is available at this time
  • Please alert me when the single part price for MCP7940N-E/SN to
    $
    for at least parts from one of my selected distributors.
    Your Pricing Alert is set to expire on .
    Set this alert to expire in Update this alert to expire · Expired on
  • Also alert me for MCP7940N-E/SN alternates
    An alert is already set for the following part(s): . Any existing alert will be overwritten and set as a new alert.

Your part alert has been saved!

Alerts are triggered based off of individual distributors that you choose. Select your distributor(s) below.

Your part alert has been saved!

Register
Password Guidelines

Is at least 8 characters in length

Must include at least 3 of the following:

One lower-case character (a-z)

One upper-case character (A-Z)

One numeric character (0-9)

One special character (!#$%^&*)

Alert is successfully saved for MCP7940N-E/SN.
Looks like you've reached your alert limit!  Please delete some alerts or contact us if you need help.

Compare MCP7940N-E/SN by Microchip Technology Inc

Select a part to compare:
Part Number Manufacturer Description
No result found.
Something went wrong!
Or search for a different part: