HD74LS122P 데이터 시트보기 (PDF) - Renesas Electronics
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HD74LS122P Datasheet PDF : 8 Pages
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HD74LS122
Electrical Characteristics
(Ta = –20 to +75 °C)
Item
Symbol
min.
typ.* max.
Unit
Condition
Input voltage
Output voltage
Input current
Short-circuit output
current
VIH
2.0
—
—
V
VIL
—
—
0.8
V
VOH
2.7
—
—
V
VCC = 4.75 V, VIH = 2 V, VIL = 0.8 V,
IOH = –400 µA
VOL
—
—
—
0.4
—
0.5
V
IOL = 4 mA
IOL = 8 mA
VCC = 4.75 V, VIH = 2 V,
VIL = 0.8 V
IIH
—
—
20
µA VCC = 5.25 V, VI = 2.7 V
IIL
—
—
–0.4
mA VCC = 5.25 V, VI = 0.4 V
II
—
—
0.1
mA VCC = 5.25 V, VI = 7 V
IOS
–20
—
–100
mA VCC = 5.25 V
Supply current**
ICC
—
6
11
mA VCC = 5.25 V
Input clamp voltage
VIK
—
—
–1.5
V
VCC = 4.75 V, IIN = –18 mA
* VCC = 5 V, Ta = 25°C
** With all outputs open and 4.5 V applied to all data and clear inputs, ICC is measured after a momentary ground, then
4.5 V, is applied to clock.
Note: To measure VOH at Q, VOL at Q, or IOS at Q, ground Rext / Cext, apply 2 V to B and clear, and pulse A from
2 V to 0 V.
Switching Characteristics
(VCC = 5 V, Ta = 25°C)
Item
Symbol Inputs Outputs min. typ. max. Unit
Condition
tPLH
A
tPHL
Q
—
23
33
Q
—
32
45
Propagation delay
tPLH
B
time
tPHL
Q
Q
—
—
23
34
44
56
ns
Cext = 0, Rext = 5 kΩ, CL
= 15 pF, RL = 2 kΩ
tPLH
Clear
Q
—
20
27
tPHL
Q
—
28
45
t(out)min
Q
Output pulse width
A or B
t(out)
Q
—
116 200
Cext = 1000 pF,
4
4.5
5
µs Rext = 10 kΩ,
CL = 15 pF, RL = 2 kΩ
Rev.2.00, Feb.18.2005, page 4 of 7
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