Hitachi HD74HCT245
The HD74HCT245 transfers true data from one bus to the other. This device does not have schmitt trigger inputs.DESCRIPTION
This device has an active low enable input G and a direction control input (DIR). When DIR is high, data flows from the A inputs to the B outputs. When DIR is low, data flows from the B inputs to the A outputs. This device does not have schmitt trigger inputs.FEATURES
●●
●
●
●
● LSTTL Output Logic Level Compatibility as well as CMOS Output Compatibility High Speed Operation: tpd (A to Y) = 12 ns typ (CL = 50 pF) High Output Current: Fanout of 15 LSTTL Loads Wide Operating Voltage: VCC = 4.5 to 5.5 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) Function Table Enable G L L H H : L : X : High level Low level Irrelevant Direction Control DIR L H X Operation B data to A bus A data to B bus Isolation HD74HCT245 Pin Arrangement DIR A1 A2 A3 A4 A5 A6 A7 A8 1 2 3 4 5 6 7 8 9 20 VCC 19 Enable G 18 B1 17 B2 16 B3 15 B4 14 B5 13 B6 12 B7 11 B8 (Top view) GND 10
ABSOLUTE MAXIMUM RATINGS
Item Supply voltage range Input voltage Output vol...