PCF8594 C-2T/02

The PCF8594C-2 is a floating gate Electrically Erasable Programmable Read Only

Memory (EEPROM) with 4 kbits (512 × 8-bit) non-volatile storage. By using an

internal redundant storage code, it 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

is generated on-chip, using a voltage multiplier.

Data bytes are received and transmitted via the serial I2C-bus. Up to four

PCF8594C-2 devices may be connected to the I2C-bus. Chip select is accomplished

by two address inputs (A1 and A2).

Timing of the E/W cycle is carried out internally, thus no external components are

required. Programming Time Control (PTC), Pin 7, 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.

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