The image is for illustrative purposes only; please refer to the product data sheet for precise specifications.
| Part Number | MCP7940N-I/SN |
|---|---|
| Manufacturer |
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| Description | Real Time Clock (RTC) IC Clock/Calendar 64B I2C, 2-Wire Serial. The MCP7940N-I/SN is a Real-Time Clock (RTC) IC from Microchip Technology, offering features such as a clock/calendar, dual alarms, and battery backup. |
| Product Group | RTC Real Time Clock |
| MOQ | 1000 pcs |
| SPQ | 100 pcs |
| Figure/Case | 8-SOIC |
| Package | TUBE Pack |
| | |
| Ship From | Hong Kong |
| Shipment Way | DHL / Fedex / TNT / UPS / Others |
| Delivery Term | Ex-Works |
| Send RFQ | sales@signalhk.com |
| Attribute | Description |
|---|---|
| Manufacturer | Microchip Technology |
| Part Number | MCP7940N-I/SN |
| Function | Real-Time Clock/Calendar with SRAM and Battery Switchover |
| Time Format | Hours, Minutes, Seconds; 12/24 hour modes |
| Date Format | Day of Week, Day, Month, Year; Leap year compensated to 2399 |
| Interface | I²C, 2-Wire Serial, up to 400 kHz |
| Features | - Dual Programmable Alarms - On-Chip Digital Trimming/Calibration (±1 PPM resolution, ±129 PPM range) - Versatile Output Pin (Clock output with selectable frequency, Alarm output, General purpose output) - Power-Fail Time-Stamp (Time logged on switchover to and from Battery mode) - 64-byte Battery-backed SRAM |
| Voltage - Supply (VCC) | 1.8V to 5.5V |
| Voltage - Supply (Battery) | 1.3V to 5.5V |
| Current - Timekeeping (Max) | 1.2 µA at 3.3V |
| Operating Temperature | -40°C to 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
| Memory Size | 64 bytes SRAM |
| Clock Oscillator | Optimized for 32.768 kHz crystals with 6-9 pF load capacitance |
| Battery Backup | Automatic switchover to battery backup; low typical timekeeping current: 1.2 µA at 3.3V (VCC), 925 nA at 3.0V (battery backup) |
| Qualification | AEC-Q100 (Automotive Grade) |
Room 1304, 13/F, Allways Centre, 468 Jaffe Road, Causeway Bay, Hong Kong. |