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MC74ACT643 Datasheet PDF

Motorola MC74ACT643

The MC74AC643/74ACT643 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.
Part No. MC74ACT643
Datasheet MC74ACT643 Download
Manufacturer
Motorola
Description OCTAL BIDIRECTIONAL TRANSCEIVER
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MC74ACT643 datasheet page 1 preview

MAXIMUM RATINGS

* Symbol VCC Vin Vout Iin Iout ICC Tstg Parameter DC Supply Voltage (Referenced to GND) DC Input Voltage (Referenced to GND) DC Output Voltage (Referenced to GND) DC Input Current, per Pin DC Output Sink/Source Current, per Pin DC VCC or GND Current per Output Pin Storage Temperature Value –0.5 to +7.0 –0.5 to VCC +0.5 –0.5 to VCC +0.5 ±20 ±50 ±50 –65 to +150 Unit V V V mA mA mA °C *

MAXIMUM RATINGS

are those values beyond which damage to the device may occur. Functional operation should be restricted to the Recommended Operating Conditions. RECOMMENDED OPERATING CONDITIONS Symbol VCC Vin, Vout Supply Voltage DC Input Voltage, Output Voltage (Ref. to GND) VCC @ 3.0 V tr, tf Input Rise and Fall Time (Note 1) ′AC Devices except Schmitt Inputs VCC @ 4.5 V VCC @ 5.5 V tr, tf TJ TA IOH IOL Input Rise and Fall Time (Note 2) ′ACT Devices except Schmitt Inputs Junction Temperature (PDIP) Operating Ambient Temperature Range Output Current — High Output Current — Low –40 25 VCC @ 4.5 V VCC @ 5.5 V Parameter ′AC ′ACT Min 2.0 4.5 0 150 40 25 10 ns/V 8.0 140 85 –24 24 °C °C mA mA ns/V Typ 5.0 5.0 Max 6.0 5.5 VCC V Unit V 1.
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