Real-Time Clock/Calendar
Featured Products
I2C™ RTCC Featured Products Specifications
| Device Family | Interface | SRAM | EEPROM | Unique ID | Pin Count |
Comments | Volume Pricing |
|---|---|---|---|---|---|---|---|
| MCP7941X | I2C | 64 Bytes | 1 Kbit | 64 bits | 8 | Full Memory Options | 0.70 |
| MCP7940X | I2C | 64 Bytes | 0 | 64 bits | 8 | ID only | 0.64 |
| MCP7940N | I2C | 64 Bytes | 0 | 0 | 8 | Low Cost | 0.57 |
| MCP7940M | I2C | 64 Bytes | 0 | 0 | 8 | Low Cost — No VBAT | 0.45 |
SPI RTCC Featured Products Specifications
| Device Family | Interface | SRAM | EEPROM | Unique ID | Pin Count |
Comments | Volume Pricing |
|---|---|---|---|---|---|---|---|
| MCP795W2X | SPI | 64 Bytes | 2K | 128 bits | 14 | Watchdog Timer,
Event Detects (x2) |
1.24 |
| MCP795W1X | SPI | 64 Bytes | 1K | 128 bits | 14 | Watchdog Timer,
Event Detects (x2) |
1.18 |
| MCP7952X | SPI | 64 Bytes | 2K | 128 bits | 10 | Full memory options | 0.93 |
| MCP7951X | SPI | 64 Bytes | 1K | 128 bits | 10 | Full Memory Options | 0.87 |
NOTE: Battery switchover with power-fail timestamp and digital trimming in all RTCCs unless noted.
RTCC Development Tools
The Real-Time Clock PICtail™ Daughter Board provides a low-cost method of evaluating real-time clock functionality in standard development platforms. For additional functionality, a coin cell holder and battery are included for backup power.
