Features: • High impedance NPN base inputs for reduced loading (70mA in High and Low states) output• 8-bit bidirectional data flow reduces system package count• 3-State inputs/outputs for interfacing with bus oriented systems• 24mA and 64mA bus drive capability on A and B p...
74F545: Features: • High impedance NPN base inputs for reduced loading (70mA in High and Low states) output• 8-bit bidirectional data flow reduces system package count• 3-State inputs/outp...
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SYMBOL |
PARAMETER |
RATING |
UNIT | |
VCC | Supply voltage |
0.5 to +7.0 |
V | |
VIN | Input voltage |
0.5 to +7.0 |
V | |
IIN | Input current |
30 to +5.0 |
mA | |
VOUT | Voltage applied to output in high output state |
0.5 to+5.5 |
V | |
IOUT | Current applied to output in low output state | A0A7 |
48 |
mA |
B0B7 |
128 |
mA | ||
Tamb | Operating free air temperature range |
0 to +70 |
°C | |
Tstg | Storage temperature range |
65 to +150 |
°C |
The 74F545 is an 8-bit, 3-State, high speed transceiver. It provides bidirectional drive for the bus-oriented microprocessor and digital communications systems. Straight through bidirectional transceivers are featured, with 24mA bus drive capability on the A ports and 64mA bus drive capability on the B ports. One input,
Transmit/Receive (T/R) of the 74F545 determines the direction of logic signals through the bidirectional transceiver. Transmit enables data from A ports to B ports; Receive enables data from B ports to A ports. The Output Enable input disables both A and B ports by placing them in a 3-State condition. The 74F545 performs the same function as the 74F245, the only difference being package pin assignment