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Microcontrollers and Processors / Timers or RTCs / MCP7940M-I/P
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MCP7940M-I/P by: Microchip Technology Inc

REAL TIME CLOCK

Part Details for MCP7940M-I/P by Microchip Technology Inc

Results Overview of MCP7940M-I/P 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.

MCP7940M-I/P Information

MCP7940M-I/P 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 MCP7940M-I/P

Part # Distributor Description Stock Price Buy
DISTI # 2098894
Farnell RTC, I2C, 64BYTES SRAM, 8PDIP RoHS: Compliant Min Qty: 1 Lead time: 7 Weeks, 1 Days Container: Each 1762
  • 1 $0.8151
  • 25 $0.7493
  • 100 $0.7399
  • 250 $0.7291
$0.7291 / $0.8151 Buy Now
DISTI # MCP7940M-I/P-ND
DigiKey IC RTC CLOCK/CALENDAR I2C 8DIP Min Qty: 1 Lead time: 4 Weeks Container: Tube 247
In Stock
  • 1 $0.7400
  • 25 $0.6800
  • 100 $0.6625
$0.6625 / $0.7400 Buy Now
DISTI # MCP7940M-I/P
Avnet Americas RTC IC, YY-MM-DD-DW, HH:MM:SS: 12Hr / 24Hr, I2C, 1.8 V to 5.5 V, 8 Pins, PDIP - Rail/Tube (Alt: MCP7940M-I/P) RoHS: Not Compliant Min Qty: 480 Package Multiple: 60 Lead time: 4 Weeks, 0 Days Container: Tube 0
  • 1 $0.7400
  • 25 $0.6800
  • 100 $0.6500
$0.6500 / $0.7400 Buy Now
DISTI # 579-MCP7940579-M-I/P
Mouser Electronics Real Time Clock I2C RTCC 64B SRAM No VBAT RoHS: Compliant 832
  • 1 $0.7400
  • 25 $0.6800
  • 120 $0.6620
$0.6620 / $0.7400 Buy Now
DISTI # V99:2348_06455040
Arrow Electronics Real Time Clock Serial 64byte Clock/Calendar/Alarm Automotive AEC-Q100 8-Pin PDIP Tube RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 4 Weeks Date Code: 2144 Americas - 50
  • 0 $0.6945
  • 1 $0.1860
$0.1860 / $0.6945 Buy Now
DISTI # 70389177
RS Microchip MCP7940M-I/P, Real Time Clock, 64B RAM Serial-I2C, 8-Pin PDIP Min Qty: 1 Package Multiple: 1 Lead time: 52 Weeks, 0 Days Container: Bulk 577
  • 1 $0.8000
  • 10 $0.7600
  • 50 $0.7200
  • 100 $0.6800
$0.6800 / $0.8000 Buy Now
Onlinecomponents.com Real Time Clock Serial - 64byte Clock/Calendar/Alarm Automotive 8-Pin PDIP - Tube RoHS: Compliant 13260 Factory Stock
  • 60 $0.7910
  • 300 $0.7260
  • 540 $0.7150
  • 1,020 $0.6880
  • 2,520 $0.6540
  • 5,040 $0.6450
$0.6450 / $0.7910 Buy Now
DISTI # 87356602
Verical Real Time Clock Serial 64byte Clock/Calendar/Alarm Automotive AEC-Q100 8-Pin PDIP Tube RoHS: Compliant Min Qty: 44 Package Multiple: 1 Americas - 239
  • 44 $1.7576
  • 60 $1.7164
$1.7164 / $1.7576 Buy Now
DISTI # 62196648
Verical Real Time Clock Serial 64byte Clock/Calendar/Alarm Automotive AEC-Q100 8-Pin PDIP Tube RoHS: Compliant Min Qty: 50 Package Multiple: 50 Date Code: 2222 Americas - 50
  • 50 $1.4567
$1.4567 Buy Now
Quest Components REAL TIME CLOCK, VOLATILE, 0 TIMER(S), CMOS, PDIP8 60
  • 1 $1.5000
  • 13 $0.9000
  • 57 $0.7000
$0.7000 / $1.5000 Buy Now
Quest Components REAL TIME CLOCK, VOLATILE, 0 TIMER(S), CMOS, PDIP8 7
  • 1 $1.5750
  • 4 $1.2600
$1.2600 / $1.5750 Buy Now
DISTI # MCP7940M-I/P
TME IC: RTC circuit, I2C, SRAM, 64BSRAM, 1.8÷5.5VDC, DIP8 Min Qty: 1 255
  • 1 $1.3900
  • 10 $1.3500
  • 25 $1.2900
  • 60 $1.1900
$1.1900 / $1.3900 Buy Now
NAC I2C RTCC, 64B SRAM, No VBAT - Package: 8 PDIP .300in TUBE RoHS: Compliant Min Qty: 480 Package Multiple: 60 Container: Tube 0
  • 1 $0.8300
  • 100 $0.7500
  • 500 $0.6900
  • 1,000 $0.6800
$0.6800 / $0.8300 Buy Now
DISTI # MCP7940M-I/P
Avnet Silica RTC IC YYMMDDDW HHMMSS 12Hr 24Hr I2C 18 V to 55 V 8 Pins PDIP (Alt: MCP7940M-I/P) RoHS: Compliant Min Qty: 60 Package Multiple: 60 Lead time: 6 Weeks, 0 Days Silica - 360
Buy Now
DISTI # MCP7940M-I/P
EBV Elektronik RTC IC YYMMDDDW HHMMSS 12Hr 24Hr I2C 18 V to 55 V 8 Pins PDIP (Alt: MCP7940M-I/P) RoHS: Compliant Min Qty: 60 Package Multiple: 60 Lead time: 5 Weeks, 0 Days EBV - 0
Buy Now
Master Electronics Real Time Clock Serial - 64byte Clock/Calendar/Alarm Automotive 8-Pin PDIP - Tube RoHS: Compliant 13260 Factory Stock
  • 60 $0.7910
  • 300 $0.7260
  • 540 $0.7150
  • 1,020 $0.6880
  • 2,520 $0.6540
  • 5,040 $0.6450
$0.6450 / $0.7910 Buy Now

Part Details for MCP7940M-I/P

MCP7940M-I/P CAD Models

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MCP7940M-I/P Part Data Attributes

Parametric Data
MCP7940M-I/P Microchip Technology Inc
Buy Now Datasheet
Compare Parts:
MCP7940M-I/P Microchip Technology Inc REAL TIME CLOCK
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer MICROCHIP TECHNOLOGY INC
Package Description 0.300 INCH, ROHS COMPLIANT, PLASTIC, DIP-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-PDIP-T8
JESD-609 Code e3
Length 9.271 mm
Number of Terminals 8
Number of Timers
On Chip Data RAM Width 8
Operating Temperature-Max 85 °C
Operating Temperature-Min -40 °C
Package Body Material PLASTIC/EPOXY
Package Code DIP
Package Equivalence Code DIP8,.3
Package Shape RECTANGULAR
Package Style IN-LINE
Qualification Status Not Qualified
RAM (words) 64
Screening Level TS 16949
Seated Height-Max 5.334 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 NO
Technology CMOS
Temperature Grade INDUSTRIAL
Terminal Finish Matte Tin (Sn)
Terminal Form THROUGH-HOLE
Terminal Pitch 2.54 mm
Terminal Position DUAL
Time-Min SECONDS
Volatile YES
Width 7.62 mm
uPs/uCs/Peripheral ICs Type TIMER, REAL TIME CLOCK

Alternate Parts for MCP7940M-I/P

This table gives cross-reference parts and alternative options found for MCP7940M-I/P. 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 MCP7940M-I/P, 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
MCP7940M-I/SN Microchip Technology Inc $0.6990 REAL TIME CLOCK MCP7940M-I/P vs MCP7940M-I/SN
MCP7940N-I/MS Microchip Technology Inc $0.7928 REAL TIME CLOCK, PDSO8, PLASTIC, MSOP-8 MCP7940M-I/P vs MCP7940N-I/MS
MCP7940NT-I/SN Microchip Technology Inc $0.8335 REAL TIME CLOCK, PDSO8, 3.90 MM, ROHS COMPLIANT, PLASTIC, SOIC-8 MCP7940M-I/P vs MCP7940NT-I/SN
MCP7940N-E/SN Microchip Technology Inc $0.8853 REAL TIME CLOCK MCP7940M-I/P vs MCP7940N-E/SN
DS1339AU+ Analog Devices Inc $3.6405 Low-Current, I2C, Serial Real-Time Clock, 8-MINI_SO-N/A, 8 Pins, -40 to 85C MCP7940M-I/P vs DS1339AU+
MCP7940MT-I/MNY Microchip Technology Inc $50.7140 REAL TIME CLOCK MCP7940M-I/P vs MCP7940MT-I/MNY
DS1339AU+T Maxim Integrated Products Check for Price Real Time Clock, 1 Timer(s), CMOS, PDSO8, ROHS COMPLIANT, MSOP-8 MCP7940M-I/P vs DS1339AU+T
MCP7940MT-I/SNVAO Microchip Technology Inc Check for Price Real Time Clock, 1 Timer(s), CMOS, PDSO8 MCP7940M-I/P vs MCP7940MT-I/SNVAO
MCP7940N-E/P Microchip Technology Inc Check for Price Real Time Clock MCP7940M-I/P vs MCP7940N-E/P
MCP7940NT-E/SNVAO Microchip Technology Inc Check for Price Real Time Clock, 1 Timer(s), CMOS, PDSO8 MCP7940M-I/P vs MCP7940NT-E/SNVAO

MCP7940M-I/P Related Parts

MCP7940M-I/P Frequently Asked Questions (FAQ)

  • The MCP7940M-I/P can handle clock frequencies up to 32 kHz.

  • The MCP7940M-I/P automatically accounts for leap years, so no additional programming is required.

  • Yes, the MCP7940M-I/P has a battery input pin (VBAT) that allows it to maintain the RTC and SRAM data during power failures.

  • The MCP7940M-I/P's internal oscillator has an accuracy of ±10 ppm over the operating temperature range.

  • Yes, the MCP7940M-I/P has a high accuracy timekeeping capability, making it suitable for applications that require precise timekeeping.

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