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Microchip Technology MCP794XX Microchip Real-Time Clock/Calendar ICs

Microchip Technology MCP794XX Microchip Real-Time Clock/Calendar (RTCC) ICs offer low-cost system timekeeping solutions with 64 bytes of SRAM and up to 2 Kbits of EEPROM, including a user-lockable section of EEPROM that can be factory-programmed with a MAC address. Features include digital trimming, power-fail time stamp, and battery-switchover. MCP794XX RTCCs are ideally suited for smart energy, home appliance, automotive, and consumer electronic applications.

Features

  • Real-Time Clock/Calendar (RTCC), Battery Backed:
    • Hours, Minutes, Seconds, Day of Week, Day, Month and Year
    • Dual alarm with single output
  • On-Chip Digital Trimming/Calibration:
    • Range -127 to +127 ppm
    • Resolution 1 ppm
  • Programmable Open-Drain Output Control:
    • CLKOUT with 4 selectable frequencies
    • Alarm output
  • 64 Bytes SRAM, Battery Backed.
  • 1 Kbits EEPROM (128x8):
    • 8 bytes/page
    • Block/sector write protection
    • Protect none, 1/4, 1/2 or all of array
  • Separate 64-Bit Unique ID:
    • 8 bytes/page
    • Block/sector write protection
    • Protect none, 1/4, 1/2 or all of array
  • Separate 64-Bit Unique ID:
    • User or factory programmable
    • Protected area
  • EUI-48™ or EUI-64™ MAC address
  • Custom ID programming
  • Automatic VCC Switchover to VBAT Backup Supply
  • Power-Fail Time-Stamp for Battery Switchover
  • Low-Power CMOS Technology:
    • Dynamic Current: 400 µA max read
    • Dynamic Current: 3mA max EEPROM write
    • Battery Backup Current: <700nA @ 1.8V
  • 100 kHz and 400 kHz Compatibility
  • ESD Protection >4,000V
  • More than 1 Million Erase/Write Cycles
  • Packages include 8-Lead SOIC, TSSOP, 2x3 TDFN, MSOP
  • Pb-Free and RoHS Compliant
  • Temperature Ranges:
    • Industrial (I): -40°C to +85°C

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Block Diagram

Block Diagram - Microchip Technology MCP794XX Microchip Real-Time Clock/Calendar ICs
公開: 2011-12-20 | 更新済み: 2022-03-11