PCF8584 Datasheet PDF - NXP

●GENERAL DESCRIPTION

●The PCF8584 is an integrated circuit designed in CMOS technology which serves as an interface between most standard parallel-bus microcontrollers/microprocessors and the serial I2C-bus. The PCF8584 provides both master and slave functions.

●Communication with the I2C-bus is carried out on a byte-wise basis using interrupt or polled handshake. It controls all the I2C-bus specific sequences, protocol, arbitration and timing. The PCF8584 allows parallel-bus systems to communicate bidirectionally with the I2C-bus.

●FEATURES

●• Parallel-bus to I2C-bus protocol converter and interface

●• Compatible with most parallel-bus microcontrollers/microprocessors including 8049, 8051, 6800, 68000 and Z80

●• Both master and slave functions

●• Automatic detection and adaption to bus interface type

●• Programmable interrupt vector

●• Multi-master capability

●• I2C-bus monitor mode

●• Long-distance mode (4-wire)

●• Operating supply voltage 4.5 to 5.5 V

●• Operating temperature range: −40 to +85 °C.