PCF8582C-2

Features:

` Low power CMOS:
   maximum operating current:
       2.0 mA (PCF8582C-2)
       2.5 mA (PCF8594C-2)
       4.0 mA (PCF8598C-2)
   maximum standby current 10 mA (at 6.0 V), typical 4 mA
` Non-volatile storage of:
   2 kbits organized as 256 ´ 8-bit (PCF8582C-2)
   4 kbits organized as 512 ´ 8-bit (PCF8594C-2)
   8 kbits organized as 1024 ´ 8-bit (PCF8598C-2)
` Single supply with full operation down to 2.5 V
` On-chip voltage multiplier
` Serial input/output I2C-bus
` Write operations:
   byte write mode
   8-byte page write mode (minimizes total write time per byte)
` Read operations:
   sequential read
   random read
` Internal timer for writing (no external components)
` Power-on-reset
` High reliability by using a redundant storage code
` Endurance: 1000000 Erase/Write (E/W) cycles at Tamb = 22
` 10 years non-volatile data retention time
` Pin and address compatible to: PCF8570, PCF8571, PCF8572 and PCF8581.



Pinout




Specifications

SYMBOL	PARAMETER	CONDITIONS	MIN.	MAX.	UNIT
VDD	supply voltage		-0.3	+6.5	V
VI	input voltage on any input pin	ïZiï > 500	VSS - 0.8	+6.5	V
II	input current on any input pin		-	1	mA
IO	output current		-	10	mA
Tstg	storage temperature		-65	+150
Tamb	operating ambient temperature (for all devices)		-40	+85

Description

The PCF8582C-2 is a family of floating gate Electrically Erasable Programmable Read Only Memories (EEPROMs) with 2, 4 and 8 kbits (256, 512 and 1024 ´ 8-bit). By using an internal redundant storage code PCF8582C-2 is fault tolerant to single bit errors. This feature dramatically increases the reliability compared to conventional EEPROMs. Power consumption is low due to the full CMOS technology used. The programming voltage of PCF8582C-2 is generated on-chip, using a voltage multiplier.

As data of PCF8582C-2 bytes are received and transmitted via the serial I²C-bus, a package using eight pins is sufficient. Up to eight PCF85xxC-2 devices may be connected to the I²C-bus. Chip select is accomplished by three address inputs (A0, A1 and A2).

Timing of the E/W cycle of PCF8582C-2 is carried out internally, thus no external components are required. Pin 7 (PTC) must be connected to either VDD or left open-circuit. There is an option of using an external clock for timing the length of an
E/W cycle.