MCP79521

MCP7951X/MCP7952X Battery-Backed SPI Real-Time Clock/Calendar Device Selection Table Part Number MCP79510 MCP79520 MCP79511 MCP79521 MCP79512 MCP79522 SRAM (Bytes) 64 64 64 64 64 64 Timekeeping Features Real-Time Clock/Calendar (RTCC): - Hours, minutes, seconds, hundredths of a second, day of week, date, month, year - Leap year compensated to 2399 - 12/24-hour modes Oscillator for 32.768 kHz Crystals: - Optimized for 6-9 pF crystals On-Chip Digital Trimming/Calibration: - ±1 ppm resolution - ±259 ppm range Dual Programmable Alarms Clock Output Function with Selectable Frequency Power-Fail Timestamp: - Time logged on switchover to and from Battery mode Low-Power Features Wide Voltage Range: - Operating voltage range of 1.8V to 3.6V - Backup voltage range of 1.3V to 3.6V Low Typical Timekeeping Current: - Operating from VCC: 1.2 µA at 3.0V - Operating from VBAT: 1.0 µA at 3.0V Automatic Switchover to Battery Backup User Memory 64-Byte Battery-Backed SRAM 1 Kbit or 2 Kbit EEPROM: - Software write-protect - Page write up to 8 bytes - Endurance: 1M erase/write cycles EEPROM (Kbits) 1 2 1 2 1 2 Unique ID Blank Blank EUI-48™ EUI-48™ EUI-64™ EUI-64™ 128-Bit Protected EEPROM Area: - Robust write unlock sequence - EUI-48™ MAC address (MCP795X1) - EUI-64™ MAC address (MCP795X2) Operating Ranges SPI Serial Interface: - SPI clock rate up to 5 MHz Temperature Range: - Industrial (I): -40°C to +85°C Automotive AEC-Q100 Qualified Packages 10-Lead MSO...