SN74HC640 - OCTAL BUS TRANSCEIVERS
The SNx4HC640 is an octal bus transceiver with 3state outputs.
All eight channels are controlled by the direction (DIR) pin and output enable OE pin.
PART NUMBER SN54HC640 SN74HC640 Device Information(1) PACKAGE BODY SIZE (NOM) J (CDIP, 20) 26.92 mm × 6.92 mm DW (SOIC, 20) 12.80 mm × 7.50 mm
SN74HC640 Features
* Wide operating voltage range of 2V to 6V
* High-Current 3-state outputs can drive up to 10 LSTTL loads
* Low power consumption, 80-µA max ICC
* Typical tpd = 8ns
* ±4-mA output drive at 5V
* Low input current of 1µA max
* Inverting logic 2 D
