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HD74BC244A Datasheet

  • HD74BC244A

  • Octal Buffers/Line Drivers With 3 State Outputs

  • 41.26KB

  • 8頁

  • HITACHI

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HD74BC244A
Octal Buffers/Line Drivers With 3 State Outputs
ADE-205-007A (Z)
2nd. Edition
March 1993
Description
The HD74BC244A provides high drivability and operation equal to or better than high speed bipolar
standard logic IC by using Bi-CMOS process. The device features low power dissipation that is about 1/5
of high speed bipolar logic IC, when the frequency is 10 MHz. The device has eight inverter drivers with
three state outputs in a 20 pin package. This device is a non inverting buffer and has two active low
enables (1G and 2G). Each enable independently controls 4 buffers.
Features
鈥?/div>
Input/Output are at high impedance state when power supply is off.
鈥?/div>
Built in input pull up circuit can make input pins be open, when not used.
鈥?/div>
TTL level input
鈥?/div>
Wide operating temperature range
Ta = 鈥?0 to + 85擄C
Function Table
Inputs
G
H
L
L
H
L
X
Z
:
:
:
:
High level
Low level
Immaterial
High impedance
A
X
H
L
Output Y
Z
H
L

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