Microchip Technology MCP7940N-I/ST Microcontrollers
IC RTC CLK/CALENDAR I2C 8TSSOP
Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
MCP7940N-I/ST
Base Model
Detailed Description
IC RTC CLK/CALENDAR I2C 8TSSOP
Package
8-TSSOP (0.173", 4.40mm Width)
Lifecycle Status
Active
Datasheet
MCP7940N-I/ST Datasheet
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Technical Specifications
Microchip Technology MCP7940N-I/ST Microcontrollers technical specifications.
General
Interface
I²C, 2-Wire Serial
Memory Size
64B
RoHS
Yes
Package / Case
8-TSSOP
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C
Supply Voltage
1.8V ~ 5.5V
Lifecycle Status
Active
Features
Alarm, Leap Year, Square Wave Output, SRAM
Type
Clock/Calendar
Related Parts Comparison (MCP7940N-I/ST vs MCP7940N-I/SN vs MCP7940N-I/MS vs MCP7940N-I/P)
Side-by-side specifications of related catalog parts.
Engineering verification required. Related parts may have different electrical ratings, pinouts, footprints, and operating limits. Verify suitability for your circuit before substitution.
| This Part | Related Part | Related Part | Related Part | |
|---|---|---|---|---|
| Mounting Type | Surface Mount | SMD/SMT | SMD/SMT | Through Hole |
| Supply Voltage | 1.8V ~ 5.5V | 1.8 V ~ 5.5 V | 1.8 V ~ 5.5 V | 1.8V ~ 5.5V |
| RoHS | Yes | Yes | Yes | Yes |
| Battery Backup Switching | Backup Switching | Backup Switching | Backup Switching | Backup Switching |
| Date Format | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd |
| Function | Alarm, Calendar, Clock | Alarm, Calendar, Clock | Alarm, Calendar, Clock | Alarm, Calendar, Clock |
| Package | TSSOP-8 | SOIC-8 | 8-TSSOP | PDIP-8 |
| Rtc Bus Interface | Serial, 2-Wire, I2C | Serial, 2-Wire, I2C | Serial, 2-Wire, I2C | Serial, 2-Wire, I2C |
| Rtc Memory Size | 64 B | 64 B | 64 B | 64 B |
| Time Format | HH:MM:SS (12/24 hr) | HH:MM:SS (12 hr, 24 hr) | HH:MM:SS (12 hr, 24 hr) | HH:MM:SS (12/24 hr) |
| Unit Weight | 0.005573 oz | 0.019048 oz | 0.004938 oz | 0.032805 oz |
| Action |
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