HD74BC244A 반도체 회로 부품 판매점
Octal Buffers/Line Drivers With 3 State Outputs
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 Hitachi Semiconductor |
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
• 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
Function Table
Inputs
G
H
L
L
H : High level
L : Low level
X : Immaterial
Z : High impedance
A
X
H
L
Output Y
Z
H
L
HD74BC244A
Pin Arrangement
1G
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
1
2
3
4
5
6
7
8
9
10
20 VCC
19 2G
18 1Y1
17 2A4
16 1Y2
15 2A3
14 1Y3
13 2A2
12 1Y4
11 2A1
(Top view)
Absolute Maximum Ratings
Item
Symbol
Rating
Unit
Supply voltage
Input diode current
Input voltage
Output voltage
Off state output voltage
Storage temperature
VCC
I IK
VIN
VOUT
VOUT(off)
Tstg
–0.5 to +7.0
±30
–0.5 to +7.5
–0.5 to +7.5
–0.5 to +5.5
–65 to +150
V
mA
V
V
V
°C
Note: 1. The absolute maximum ratings are values which must not individually be exceeded, and
furthermore, no two of which may be realized at the same time.
2
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제조업체: Hitachi Semiconductor
( hitachi )
HD74BC244A driver
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
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