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MC74AC640DW Folha de dados(PDF) 1 Page - Motorola, Inc |
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MC74AC640DW Folha de dados(HTML) 1 Page - Motorola, Inc |
1 / 6 page 5-1 FACT DATA Octal Bidirectional Transceiver with 3State Outputs The MC74AC640/74ACT640 octal bus transceiver is designed for asynchronous two-way communication between data buses. The device transmits data from bus A to bus B when T/R = HIGH, or from bus B to bus A when T/R = LOW. The enable input can be used to disable the device so the buses are effectively isolated. • Bidirectional Data Path • A and B Outputs Sink 24 mA/Source –24 mA • ′ACT640 Has TTL Compatible Inputs 19 20 18 16 15 14 2 1 3 4 5 6 7 VCC 13 8 12 9 11 10 OE B0 B1 B2 B3 B4 B5 B6 B7 T/R A0 A1 A2 A3 A4 A5 A6 A7 GND 17 PIN NAMES A0–A7 Side A Inputs or 3-State Outputs OE Output Enable Input T/R Transmit/Receive Input B0–B7 Side B Inputs or 3-State Outputs TRUTH TABLE OE T/R Applied Inputs Valid Direction I/P →O/P Output H X X X X L H H A to B L L H L A to B H L L H B to A L L L L B to A H H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial MC74AC640 MC74ACT640 OCTAL BIDIRECTIONAL TRANSCEIVER WITH 3-STATE OUTPUTS N SUFFIX CASE 738-03 PLASTIC DW SUFFIX CASE 751D-04 PLASTIC |
Nº de peça semelhante - MC74AC640DW |
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Descrição semelhante - MC74AC640DW |
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