Datasheet Microchip MCP7940M
| Manufacturer | Microchip |
| Series | MCP7940M |
The MCP7940M I2CTM compatible real-time clock/calendar (RTCC) includes SRAM and a digital trimming circuit for accuracy which is normally found in higher priced devices
Datasheets
MCP7940M Low-Cost I2C RTCC with SRAM
PDF, 1.3 Mb, File published: Jun 23, 2014
Extract from the document
Prices
Status
| MCP7940M-I/MS | MCP7940M-I/P | MCP7940M-I/SN | MCP7940M-I/ST | MCP7940MT-I/MNY | MCP7940MT-I/MS | MCP7940MT-I/SN | MCP7940MT-I/ST | MCP7940MT-I/STVAO | |
|---|---|---|---|---|---|---|---|---|---|
| Lifecycle Status | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) | Production (Appropriate for new designs but newer alternatives may exist) |
Packaging
| MCP7940M-I/MS | MCP7940M-I/P | MCP7940M-I/SN | MCP7940M-I/ST | MCP7940MT-I/MNY | MCP7940MT-I/MS | MCP7940MT-I/SN | MCP7940MT-I/ST | MCP7940MT-I/STVAO | |
|---|---|---|---|---|---|---|---|---|---|
| N | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |
| Package | MSOP | PDIP | SOIC | TSSOP | TDFN | MSOP | SOIC | TSSOP | TSSOP |
| Pins | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
Parametrics
| Parameters / Models | MCP7940M-I/MS | MCP7940M-I/P | MCP7940M-I/SN | MCP7940M-I/ST | MCP7940MT-I/MNY | MCP7940MT-I/MS | MCP7940MT-I/SN | MCP7940MT-I/ST | MCP7940MT-I/STVAO |
|---|---|---|---|---|---|---|---|---|---|
| Alarms | 2 Alarms (1 sec) | 2 Alarms (1 sec) | 2 Alarms (1 sec) | 2 Alarms (1 sec) | 2 Alarms (1 sec) | 2 Alarms (1 sec) | 2 Alarms (1 sec) | 2 Alarms (1 sec) | 2 Alarms (1 sec) |
| Digital_Trimming | -127 to +127ppm (1 ppm steps) | -127 to +127ppm (1 ppm steps) | -127 to +127ppm (1 ppm steps) | -127 to +127ppm (1 ppm steps) | -127 to +127ppm (1 ppm steps) | -127 to +127ppm (1 ppm steps) | -127 to +127ppm (1 ppm steps) | -127 to +127ppm (1 ppm steps) | -127 to +127ppm (1 ppm steps) |
| Interface | I²C™ | I²C™ | I²C™ | I²C™ | I²C™ | I²C™ | I²C™ | I²C™ | I²C™ |
| Operating Temperature Range, °C | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | |
| Outputs | IRQ/CLK | IRQ/CLK | IRQ/CLK | IRQ/CLK | IRQ/CLK | IRQ/CLK | IRQ/CLK | IRQ/CLK | IRQ/CLK |
| Temperature Range | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 | -40 to +85 |
| Unique ID, MAC_Address | None | None | None | None | None | None | None | None | None |
| User SRAM, Bytes | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 | 64 |
| Vcc Range, V | 1.8 - 5.5 | 1.8 - 5.5 | 1.8 - 5.5 | 1.8 - 5.5 | 1.8 - 5.5 | 1.8 - 5.5 | 1.8 - 5.5 | 1.8 - 5.5 | 1.8 - 5.5 |
Eco Plan
| MCP7940M-I/MS | MCP7940M-I/P | MCP7940M-I/SN | MCP7940M-I/ST | MCP7940MT-I/MNY | MCP7940MT-I/MS | MCP7940MT-I/SN | MCP7940MT-I/ST | MCP7940MT-I/STVAO | |
|---|---|---|---|---|---|---|---|---|---|
| RoHS | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Model Line
Series: MCP7940M (9)
Manufacturer's Classification
- Clock and Timing > Real-Time Clock > RTCC
