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HD74BC540ARP Datasheet

  • HD74BC540ARP

  • BUFFER/DRIVER|SINGLE|8-BIT|BICMOS-TTL|SOP|20PIN|PLASTIC

  • 39.54KB

  • 8頁

  • ETC

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HD74BC540A
Octal Buffers/Line Drivers With 3 State Outputs
ADE-205-031 (Z)
Rev. 0
June 1993
Description
The HD74BC540A 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. When
G1
and
G2
is low level, this drivers set up output is enable.
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>
Input is TTL level.
鈥?/div>
Wide operating temperature range
Ta = 鈥?0 to +85擄C
Function Table
Inputs
G1
L
L
H
X
H
L
X
Z
:
:
:
:
High level
Low level
Immaterial
High impedance
G2
L
L
X
H
A
L
H
X
X
Output Y
H
L
Z
Z

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