參數(shù)資料
型號: TC74VHC163FK
廠商: Toshiba Corporation
元件分類: 通用總線功能
英文描述: Synchronous Presettable 4-Bit Counter
中文描述: 同步可預(yù)置4位計(jì)數(shù)器
文件頁數(shù): 9/15頁
文件大小: 334K
代理商: TC74VHC163FK
TC74VHC161,163F/FN/FT/FK
2007-10-01
9
Switching Characteristics Test Waveform
Figure 1 Count Mode
Figure 4 Clear Mode (TC74VHC161)
CK
50
t
wH
t
wL
V
CC
GND
50
V
OH
VO
L
t
pHL
50
50
t
pLH
Q,
CARRY
CLR
50
t
wL
V
CC
GND
V
OH
V
OL
t
rem
50
50
t
pHL
CK
Q,
CARRY
V
CC
GND
Figure 2 Preset Mode
Figure 5 Clear Mode (TC74VHC163)
LOAD
50
t
s
V
CC
GND
t
h
50
t
s
t
h
50
t
s
t
h
50
A to D
t
pLH
, t
pHL
50
V
CC
G
ND
CK
V
OH
V
OL
Q,
CARRY
50
CLR
50
V
CC
GND
V
OH
V
OL
50
CK
Q,
CARRY
V
CC
GND
50
t
s
t
h
ENP
ENT
50
t
s
V
CC
GND
t
h
50
t
s
t
h
CK
Q
V
OH
V
OL
V
CC
GND
50
50
V
OH
V
OL
ENT
V
CC
GND
50
50
CARRY
50
50
t
pLH
t
pHL
Figure 3 Count Enable Mode
Figure 6 Cascade Mode
(fix maximum count)
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