MC74ACT245

( DataSheet : www.DataSheet4U.com ) MC74AC245 MC74ACT245 Octal Bidirectional T ransceiver with 3ĆState Inputs/Outputs OCTAL BIDIRECTIONAL TRANSCEIVER WITH 3-STATE INPUTS/OUTPUTS The MC74AC245/74ACT245 contains eight non-inverting bidirectional buffers with 3-state outputs and is intended for bus-oriented applications. Current sinking capability is 24 mA at both the A and B ports. The Transmit/Receive (T/R) input determines the direction of data flow through the bidirectional transceiver. Transmit (active-HIGH) enables data from A ports to B ports; Receive (active-LOW) enables data from B ports to A ports. The Output Enable input, when HIGH, disables both A and B ports by placing them in a High Z condition. Noninverting Buffers Bidirectional Data Path A and B Outputs Source/Sink 24 mA ′ACT245 Has TTL Compatible Inputs VCC 20 OE 19 B0 18 B1 17 B2 16 B3 15 B4 14 B5 13 B6 12 B7 11 N SUFFIX CASE 738-03 PLASTIC DW SUFFIX CASE 751D-04 PLASTIC 1 T/R 2 A0 3 A1 4 A2 5 A3 6 A4 7 A5 8 A6 9 A7 10 GND PIN NAMES OE T/R A0–A7 B0–B7 Output Enable Input Transmit/Receive Input Side A 3-State Inputs or 3-State Outputs Side B 3-State Inputs or 3-State Outputs TRUTH TABLES Inputs Outputs OE L L H T/R L H X Bus B Data to Bus A Bus A Data to Bus B High Z State H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial www.DataSheet4U.com www.DataSheet4U.com FACT DATA 5-1 MC74AC245 MC74ACT245 MAXIMUM RATINGS* Symbol VCC Vin Vout Iin Iout ICC Tstg Parameter DC Supply Vo...