74LS122 查看數據表（PDF） - Motorola => Freescale
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74LS122 Datasheet PDF : 10 Pages
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SN54/74LS122 • SN54/74LS123
Pin
VCC
Ω 51
VRC
Rext
VCC
Cext
Cext
CLR
B
Rext/
Cext
VCC
Q
1/2 LS123
Q
A
GND
µ 0.1 F
Pout
Figure 1
Pin
VCC
Ω 51
VRC
Rext
VCC
Cext
Cext
CLR
Rext/
Cext
B2
B1
LS122
VCC
Q
A2
Q
A1
GND
µ 0.1 F
Pout
Figure 2
Pin
Pout
tW
RETRIGGER
Figure 3
10
≤ ≤ 5K Rext 260K
1
0.1
0.01
0.001
0.3
0.35
0.4
0.45
K
0.5
Figure 4
0.55
FAST AND LS TTL DATA
5-201
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