器件名称:
MC74F1245
功能描述:
OCTAL BIDIRECTIONAL TRANSCEIVER WITH 3-STATE INPUTS/OUTPUTS
文件大小:
96.32KB 共3页
简 介:
MC74F1245 OCTAL BIDIRECTIONAL TRANSCEIVER WITH 3-STATE INPUTS/OUTPUTS The MC74F1245 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 High Impedance Inputs for Reduced Loading Same Function and Pinout as the F245 ESD Protection > 4000 Volts PIN ASSIGNMENT VCC OE 20 19 B0 18 B1 17 B2 16 B3 15 B4 14 B5 13 B6 12 B7 11 20 1 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 DW SUFFIX SOIC CASE 751D-03 1 T/R 2 A0 3 A1 4 A2 5 A3 6 A4 7 A5 8 A6 9 A7 10 GND LOGIC SYMBOL 2 3 4 5 6 7 8 9 ORDERING INFORMATION MC74FXXXXJ Ceramic MC74FXXXXN Plastic MC74FXXXXDW SOIC A0 A1 A2 A3 A4 A5 A6 A7 19 1 OE T/R B0 B1 B2 B3 B4 B5 B6 B7 18 17 16 15 14 13 12 11 GUARANTEED OPERATING RANGES Symbol VCC TA IOH IOL IOH IOL Parameter DC Supply Voltage Operating Ambient Temperature Range Output Current High Output Current Low Output Current High Output ……
