HD74LS122 查看數據表（PDF） - Renesas Electronics
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HD74LS122 Datasheet PDF : 8 Pages
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HD74LS122
Features
• Ordering Information
Part Name
Package Type
Package Code
(Previous Code)
Package
Abbreviation
HD74LS122P
DILP-14 pin
PRDP0014AB-B
(DP-14AV)
P
HD74LS122FPEL SOP-14 pin (JEITA)
PRSP0014DF-B
(FP-14DAV)
FP
Note: Please consult the sales office for the above package availability.
Taping Abbreviation
(Quantity)
—
EL (2,000 pcs/reel)
Pin Arrangement
A1 1
A2 2
B1 3
B2 4
CLR 5
Q6
GND 7
CLR
QQ
(Top view)
14 VCC
13 Rext/Cext
12 NC
11 Cext
10 NC
9 Rint
8Q
Function Table
Inputs
Outputs
Clear
A1
A2
B1
B2
Q
Q
L
X
X
X
X
L
H
X
H
H
X
X
L
H
X
X
X
L
X
L
H
X
X
X
X
L
L
H
H
L
X
↑
H
H
L
X
H
↑
H
X
L
↑
H
H
X
L
H
↑
H
H
↓
H
H
H
↓
↓
H
H
H
↓
H
H
H
↑
L
X
H
H
↑
X
L
H
H
Notes: H; high level, L; low level, X; irrelevant
↑; transition from low to high level
↓; transition from high to low level
; one high-level pulse
; one low-level pulse
Rev.2.00, Feb.18.2005, page 2 of 7
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