HD74BC244A Datasheet, PDF (1/9 Pages) Hitachi Semiconductor – Octal Buffers/Line Drivers With 3 State Outputs

HD74BC244A
Octal Buffers/Line Drivers With 3 State Outputs
REJ03D0281–0300Z
(Previous ADE-205-007A (Z))
Rev.3.00
Jul.16.2004
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
• Input/Output are at high impedance state when power supply is off.
• Built in input pull up circuit can make input pins be open, when not used.
• TTL level input
• Wide operating temperature range
Ta = –40 to + 85°C
• Ordering Information
Part Name
Package Type
Package Code
Package
Abbreviation
HD74BC244AP
DILP-20 pin
DP-20N, -20NEV P
HD74BC244AFPEL
SOP-20 pin (JEITA) FP-20DAV
FP
HD74BC244ATELL
TSSOP-20 pin
TTP-20DAV
T
Note: Please consults the sales office for the above package availability.
Taping Abbreviation
(Quantity)
—
EL (2,000 pcs/reel)
ELL (2,000 pcs/reel)
Function Table
Inputs
G
A
Output Y
H
X
Z
L
H
H
L
L
L
H : High level
L : Low level
X : Immaterial
Z : High impedance
Rev.3.00, Jul.16.2004, page 1 of 8