- RS Stock No.:
- 761-7627
- Mfr. Part No.:
- MCP7940M-I/SN
- Brand:
- Microchip
20 In Global stock for delivery within 10 working day(s)
Added
Price (ex. GST) Each (In a Pack of 5)
$1.11
(exc. GST)
$1.22
(inc. GST)
Units | Per unit | Per Pack* |
5 - 20 | $1.11 | $5.55 |
25 - 45 | $1.086 | $5.43 |
50 + | $1.072 | $5.36 |
*price indicative |
- RS Stock No.:
- 761-7627
- Mfr. Part No.:
- MCP7940M-I/SN
- Brand:
- Microchip
Technical data sheets
Legislation and Compliance
- COO (Country of Origin):
- TH
Product Details
MCP7940M I²C Real-Time Clock/Calendars
The Microchip MCP7940M is Real-Time Clock Calendar (RTCC) that supports I²C communications. The MCP7940M includes a digital trimming circuit for accuracy which can compensate for crystal tolerance and temperature.
The MCP7940M features a multi-functional output that can be configured as an alarm output, to output a selectable frequency square wave or as a general purpose output.
The MCP7940M features a multi-functional output that can be configured as an alarm output, to output a selectable frequency square wave or as a general purpose output.
Features
2-Wire Serial Interface, I²C™ Compatible: I²C clock rate up to 400 kHz
On-Chip Digital Trimming/Calibration: ±1 ppm resolution, ±129 ppm range
Tracks Hours, Minutes, Seconds, Day of Week, Day, Month and Year
Leap Year Compensated to 2399
12/24 Hour Modes
Oscillator for 32.768 kHz Crystals: Optimised for 6-9 pF crystals
Dual Programmable Alarms
Versatile Output Pin
Wide Operating Voltage Range: 1.8V to 5.5V
Low Typical Timekeeping Current: 1.2μA at 3.3V
On-Chip Digital Trimming/Calibration: ±1 ppm resolution, ±129 ppm range
Tracks Hours, Minutes, Seconds, Day of Week, Day, Month and Year
Leap Year Compensated to 2399
12/24 Hour Modes
Oscillator for 32.768 kHz Crystals: Optimised for 6-9 pF crystals
Dual Programmable Alarms
Versatile Output Pin
Wide Operating Voltage Range: 1.8V to 5.5V
Low Typical Timekeeping Current: 1.2μA at 3.3V
For products that are Customized and under Non-cancellable & Non-returnable, Sales & Conditions apply.
Real Time Clock Peripherals - Microchip
Specifications
Attribute | Value |
---|---|
Functions | Calendar, NV SRAM |
Date Format | DW:DM:M:Y |
Time Format | HH:MM:SS |
User RAM | 64B |
Bus Type | Serial-I2C |
Mounting Type | Surface Mount |
Package Type | SOIC |
Pin Count | 8 |
Dimensions | 4.9 x 3.9 x 1.25mm |
Length | 4.9mm |
Width | 3.9mm |
Height | 1.25mm |
Maximum Operating Supply Voltage | 5.5 V |
Minimum Operating Temperature | -40 °C |
Minimum Operating Supply Voltage | 1.8 V |
Maximum Operating Temperature | +85 °C |
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