Datasheet Microchip MCP79521-I/MS — Datenblatt

MCP7951X/MCP7952X
Battery-Backed SPI Real-Time Clock/Calendar Part Number SRAM
(Bytes) EEPROM
(Kbits) Unique ID MCP79510 64 1 Blank MCP79520 64 2 Blank MCP79511 64 1 EUI-48в„ў MCP79521 64 2 EUI-48в„ў MCP79512 64 1 EUI-64в„ў MCP79522 64 2 EUI-64в„ў Timekeeping Features Real-Time Clock/Calendar (RTCC):
-Hours, minutes, seconds, hundredth of
seconds, 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:
-В±1 ppm resolution
-В±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 ВµA at 3.0V
-Operating from VBAT: 1.0 ВµA at 3.0V Automatic Switchover to Battery Backup 128-Bit Protected EEPROM Area:
-Robust write unlock sequence
-EUI-48в„ў MAC address (MCP795X1)
-EUI-64в„ў MAC address (MCP795X2) Operating Ranges SPI Serial Interface:
-SPI clock rate up to 5 MHz Temperature Range:
-Industrial (I): -40В°C to +85В°C Packages 10-Lead MSOP and TDFN Package Types (not to scale)
MSOP/TDFN …