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CM200S-32.768KDZB-UT Datasheet(PDF) 1 Page - Micro Analog systems |
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CM200S-32.768KDZB-UT Datasheet(HTML) 1 Page - Micro Analog systems |
1 / 50 page 2012 Microchip Technology Inc. Preliminary DS22300A-page 1 MCP7952X/MCP7951X Device Selection Table Timekeeping Features: • Real-Time Clock/Calendar: - Hours, Minutes, Seconds, Hundredth of Seconds, Day of Week, Month, Year, Leap Year • Crystal Oscillator requires External 32,768 kHz Tuning Fork Crystal and Load Capacitors. • Clock Out Function: - 1Hz, 4.096 kHz, 8.192 kHz, 32.768 kHz • 2 Programmable Alarms • Programmable open drain output – Alarm or Interrupt • On-Chip Digital Trimming/Calibration: - +/- 255 PPM range in 1 PPM steps • Power-Fail Time-Stamp @ Battery Switchover: - Logs time when VCC fails and VCC is restored Low-Power Features: • Wide Operating Voltage: -VCC: 1.8V to 3.6V -VBAT: 1.3V to 3.6V • Low Operating Current: -VCC Standby Current < 1uA @ 3V -VBAT Timekeeping Current: <700nA @ 1.8V • Automatic Battery Switchover from VCC to VBAT: - Backup power for timekeeping and SRAM retention User Memory: • 64-Byte Battery-Backed SRAM • 2 Kbit and 1 Kbit EEPROM Memory: - Software block write-protect (¼, ½, or entire array) - Write Page mode (up to 8 bytes) - Endurance: 1M erase/write cycles • 128-Bit Unique ID in Protected Area of EEPROM: - Available blank or preprogrammed - EUI-48™ or EUI-64™ MAC address - Unlock sequence for user programming Operating Ranges: • SPI Clock Speed up to 5 MHz • Operating Temperature Ranges: - Industrial (I Temp): -40°C to +85°C. • Packages include 10-Lead MSOP and TDFN Package Types (not to scale) Part Number SRAM (Bytes) EEPROM (Kbits) Unique ID MCP79520 64 2 Blank MCP79510 64 1 Blank MCP79521 64 2 EUI-48™ MCP79511 64 1 EUI-48™ MCP79522 64 2 EUI-64™ MCP79512 64 1 EUI-64™ X1 X2 VBAT Vcc MFP 1 2 3 4 MSOP/TDFN CS VSS SCK SO SI 5 6 7 10 9 8 Note: MCP795XX is used in this document as a generic part number for the MCP7951X, MCP7952X devices. 3V SPI Real-Time Clock Calendar with Battery Switchover |
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