參數(shù)資料
型號(hào): 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(yè)數(shù): 10/15頁(yè)
文件大小: 334K
代理商: TC74VHC163FK
TC74VHC161,163F/FN/FT/FK
2007-10-01
10
Noise Characteristics
(input: t
r
= t
f
= 3 ns)
Test Condition
Ta = 25°C
Characteristics
Symbol
V
CC
(V)
Typ.
Max
Unit
Quiet output maximum dynamic V
OL
V
OLP
C
L
=
50 pF
5.0
0.4
0.8
V
Quiet output minimum dynamic V
OL
V
OLV
C
L
=
50 pF
5.0
0.4
0.8
V
Minimum high level dynamic input voltage
V
IHD
C
L
=
50 pF
5.0
3.5
V
Maximum low level dynamic input voltage
V
ILD
C
L
=
50 pF
5.0
1.5
V
Input Equivalent Circuit
Typical Application
Parallel Carry N-Bit Counter
INPUT
LD A
ENP
CLR QA
B
C
QB QC
D
QD
INPUTS
OUTPUTS
CARRY
ENT
CK
LD A
ENP
CLR QA
B
C
QB QC
D
QD
INPUTS
OUTPUTS
CARRY
ENT
CK
LD A
ENP
CLR QA
B
C
QB QC
D
QD
INPUTS
OUTPUTS
CARRY
ENT
CK
NEXT
STAGE
H: COUNT
L: DISABLE
H: COUNT
L: DISABLE
CK
CLR
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