參數(shù)資料
型號: HCF4020B
廠商: 意法半導體
元件分類: 通用總線功能
英文描述: RIPPLE-CARRY BINARY COUNTER/DIVIDERS
中文描述: 波進二進制計數(shù)器/分頻器
文件頁數(shù): 5/11頁
文件大?。?/td> 267K
代理商: HCF4020B
DYNAMIC ELECTRICAL CHARACTERISTICS
(T
amb
= 25
°
C, C
L
= 50pF, R
L
= 200k
,
typical temperature coefficient for all V
DD
= 0.3%/
°
C values, all input rise and fall time = 20ns).
Value
Typ.
Symbol
Parameter
Test Conditions
V
DD
(V)
Min.
Max.
Unit
INPUT-PULSE OPERATION
t
PLH
, t
PHL
Propagation Delay Time
( to Q1 Out)
5
180
80
65
100
40
30
100
50
40
70
30
20
360
160
130
200
80
60
200
100
80
140
60
40
ns
10
15
5
10
15
5
10
15
5
10
15
5
10
15
5
10
15
t
PLH
, t
PHL
Propagation Delay Time
Qn to Q
n +1
ns
t
TLH
, t
THL
Transition Time
ns
t
W
Minimum Input Pulse Width
ns
t
r
, t
f
Input Pulse Rise and Fall Time
Unlimited
μ
s
f
max
Maximum Clock Input Frequency
3.5
8
12
7
16
24
MHz
RESET OPERATION
t
P HL
Propagation Delay Time
5
140
60
50
100
40
30
175
75
50
280
120
100
200
80
60
350
150
100
ns
10
15
5
10
15
5
10
15
t
W
Minimum Reset Pulse Width
ns
t
rem
Reset Removal Time
ns
HCC/HCF4020B/24B/40B
5/11
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