74ACT573PC Octal Latch with 3-STATE Outputs. ICC and IOZ reduced by 50%, Inputs and outputs on opposite sides of package allowing easy interface with microprocessors. Useful as input or output port for microprocessors. Functionally identical to 74AC373 and 74ACT373, 3-STATE outputs for bus interfacing. Outputs source/sink 24mA. The 74ACT573 has TTL-compatible inputs, 20 pin DIP package.