HD74HC51 Datasheet, PDF (2/7 Pages) Hitachi Semiconductor – 2-wide 2-input, 2-wide 3-input AND-OR-INVERT Gate

HD74HC51
2Y = (2A·2B) + (2C·2D)
2A
H
X
L
L
X
X
H : High level
L : Low level
X : Irrelevant
Inputs
2B
2C
H
X
X
H
X
L
X
X
L
L
L
X
Pin Arrangement
Output
2D
2Y
X
L
H
L
X
H
L
H
X
H
L
H
1A 1
2A 2
2B 3
2C 4
2D 5
2Y 6
GND 7
(Top view)
14 V_CC
13 1C
12 1B
11 1F
10 1E
9 1D
8 1Y
Absolute Maximum Ratings
Item
Symbol
Ratings
Unit
Supply voltage range
VCC
–0.5 to 7.0
V
Input / Output voltage
Vin, Vout
–0.5 to VCC +0.5
V
Input / Output diode current
IIK, IOK
±20
mA
Output current
IO
±25
mA
VCC, GND current
ICC or IGND
±50
mA
Power dissipation
PT
500
mW
Storage temperature
Tstg
–65 to +150
°C
Note: 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.
Rev.2.00, Oct 06, 2005 page 2 of 6