參數(shù)資料
型號: HD74HC137
廠商: Hitachi,Ltd.
元件分類: 通用總線功能
英文描述: Synchronous 4-Bit Up/Down Binary Counters With Dual Clock 16-CFP -55 to 125
中文描述: 3至8線解碼器/解復(fù)用器的地址鎖存器
文件頁數(shù): 5/10頁
文件大?。?/td> 60K
代理商: HD74HC137
HD74HC137
5
AC Characteristics
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Ta = 25
°
C
Ta = –40 to
+85
°
C
Item
Symbol
V
CC
(V)
2.0
Min Typ Max Min
Max
Unit
Test Conditions
Propagation delay t
PLH
time
170 —
215
ns
A, B or C to Y
4.5
16
34
43
6.0
29
37
t
PHL
2.0
240 —
300
ns
4.5
17
48
60
6.0
41
51
t
PLH
2.0
130 —
165
ns
G
2
to Y
4.5
13
26
33
6.0
22
28
t
PHL
2.0
195 —
245
ns
4.5
14
39
49
6.0
33
42
t
PLH
2.0
150 —
190
ns
G
1
to Y
4.5
14
30
38
6.0
26
33
t
PHL
2.0
195 —
245
ns
4.5
14
39
49
6.0
33
42
t
PLH
2.0
175 —
220
ns
GL
to Y
4.5
17
35
44
6.0
30
37
t
PHL
2.0
250 —
315
ns
4.5
18
50
63
6.0
43
54
Setup time
t
su
2.0
100 —
125
ns
A, B, C inputs
4.5
20
3
25
6.0
17
21
Hold time
t
h
2.0
50
65
ns
A, B, C inputs
4.5
10
–3
13
6.0
9
11
相關(guān)PDF資料
PDF描述
HD74HC138 3-to-8-line Decoder/Demultiplexer
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HD74HC148 Dual 4-Input Positive-NAND Gates 20-LCCC -55 to 125
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