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PCF8583P
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  • PCF8583P
ID: 35715

Clock and calendar with 240 x 8-bit RAM, DIP8, NXP, RoHS

Retired

PCF8583P
Clock and calendar with 240 x 8-bit RAM, DIP8, NXP, RoHS

The PCF8583 is a clock and calendar chip, based on a 2048 bit static CMOS1 RAM organized as 256 words by 8 bits. Addresses and data are transmitted via the two-line bidirectional I 2 C-bus. The built-in word address register is incremented. Address pin A0 is used for busses without additional hardware.

The built-in 32.768 kHz oscillator circuit and the first 8 bytes of the RAM, calendar, and counter functions. The next 8 bytes can be programmed as alarm registers or used as free RAM space. The remaining 240 bytes are free RAM locations.

Features:

  • I2C-bus interface operating voltage: 2.5 V to 6 V
  • Clocking supply supply voltage 1.0 V to 6.0 V at 0 ° C is +70 ° C
  • 240 × 8-bit low-voltage RAM
  • Data retention voltage: 1.0 V to 6.0 V
  • Operating current (at fSCL = 0 Hz): max 50 μA
  • Clock function with four year calendar
  • Universal timer with alarm and overflow indication
  • 24 hour or 12 hour format
  • 32.768 kHz or 50 Hz time base
  • Serial input and output bus (I2C-bus)
  • Automatic word address incrementing \
  • Programmable alarm, timer, and interrupt function
  • Slave addresses: A1h or A3h for reading, A0h or A2h for writing
35715

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