SN54LS122 데이터 시트보기 (PDF) - Motorola => Freescale
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SN54LS122 Datasheet PDF : 10 Pages
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SN54/74LS122 • SN54/74LS123
GUARANTEED OPERATING RANGES
Symbol
Parameter
VCC
Supply Voltage
TA
Operating Ambient Temperature Range
IOH
Output Current — High
IOL
Output Current — Low
Rext
External Timing Resistance
Cext
External Capacitance
Rext / Cext Wiring Capacitance at Rext / Cext Terminal
Min
Typ
Max
Unit
54
4.5
5.0
5.5
V
74
4.75
5.0
5.25
54
– 55
25
125
°C
74
0
25
70
54, 74
– 0.4
mA
54
4.0
mA
74
8.0
54
5.0
74
5.0
180
kΩ
260
54, 74
No Restriction
54, 74
50
pF
WAVEFORMS
B INPUT
RETRIGGER
PULSE
(See Application Data)
Q OUTPUT
tW
OUTPUT WITHOUT RETRIGGER
EXTENDING PULSE WIDTH
B INPUT
CLEAR INPUT
CLEAR PULSE
Q OUTPUT
OUTPUT WITHOUT CLEAR PULSE
OVERRIDING THE OUTPUT PULSE
FAST AND LS TTL DATA
5-199
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