OCTAL BUFFER/LINE DRIVER
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MC74AC540 MC74ACT540 MC74AC541 MC74ACT541
Octal Buffer/Line Driver with 3ĆState Outputs
OCTAL BUF...
Description
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MC74AC540 MC74ACT540 MC74AC541 MC74ACT541
Octal Buffer/Line Driver with 3ĆState Outputs
OCTAL BUFFER/LINE DRIVER WITH 3-STATE OUTPUTS
The MC74AC540/74ACT540 and MC74AC541/74ACT541 are octal buffer/line drivers designed to be employed as memory and address drivers, clock drivers and bus oriented transmitter/receivers. The MC74AC541/74ACT541 is a noninverting option of the MC74AC540/74ACT540. These devices are similar in function to the MC74AC240/74ACT240 and MC74AC244/74ACT244 while providing flow-through architecture (inputs on opposite side from outputs). This pinout arrangement makes these devices especially useful as output ports for microprocessors, allowing ease of layout and greater PC board density. 3-State Outputs Inputs and Outputs Opposite Side of Package, Allowing Easier Interface to Microprocessors Outputs Source/Sink 24 mA MC74AC540/74ACT540 Provides Inverted Outputs MC74AC541/74ACT541 Provides Noninverted Outputs ′ACT540 and ′ACT541 Have TTL Compatible Inputs MC74AC540/74ACT540 MC74AC541/74ACT541
N SUFFIX CASE 738-03 PLASTIC
DW SUFFIX CASE 751D-04 PLASTIC VCC OE2
OE1
1 2 3 4 5 6 7 8 9
20 19 18 17 16 15 14 13 12 11
VCC OE2
OE1
1 2 3 4 5 6 7 8 9
20 19 18 17 16 15 14 13 12 11
TRUTH TABLE
Inputs OE1 L H X L OE2 L X H L D H X X L Outputs ′540 L Z Z H ′541 H Z Z L
H = HIGH Voltage Level L = LOW Voltage Level X = Immaterial Z = High Impedance
GND
10
GND
10
FACT DATA
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MC74AC...
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