MC54F245

www.DataSheet4U.com 3 MC54/74F245 OCTAL BIDIRECTIONAL TRANSCEIVER WITH 3-STATE INPUTS/OUTPUTS The MC54/74F245 contains eight noninverting bidirectional buffers with 3-state outputs and is intended for bus-oriented applications. Current sinking capability is 24 mA at the A ports and 64 mA at the 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 B Outputs Sink 64 mA ESD > 4000 Volts CONNECTION DIAGRAM (TOP VIEW) VCC 20 OE 19 B0 18 B1 17 B2 16 B3 15 B4 14 B5 13 B6 12 B7 11 OCTAL BIDIRECTIONAL TRANSCEIVER WITH 3-STATE INPUTS/OUTPUTS FAST™ SCHOTTKY TTL 20 1 J SUFFIX CERAMIC CASE 732-03 N SUFFIX PLASTIC CASE 738-03 20 1 20 1 T/R 2 A0 3 A1 4 A2 5 A3 6 A4 7 A5 8 A6 9 A7 10 GND 1 DW SUFFIX SOIC CASE 751D-03 FUNCTION TABLE Inputs OE L L H T/R L H X Output Bus B Data to Bus A Bus A Data to Bus B High-Z State H = HIGH Voltage Level L = LOW Voltage Level X = Don’t Care ORDERING INFORMATION MC54FXXXJ MC74FXXXN MC74FXXXDW Ceramic Plastic SOIC GUARANTEED OPERATING RANGES Symbol VCC TA Supply Voltage Operating Ambient Temperature Range Parameter 54, 74 54 74 IOH IOL IOH IOL Output Current — High Output Current — Low An Outputs An Out...