參數(shù)資料
型號: 74HCT193
廠商: NXP Semiconductors N.V.
元件分類: 通用總線功能
英文描述: Presettable synchronous 4-bit binary up/down counter
中文描述: 可預置同步4位二進制加/減計數(shù)器
文件頁數(shù): 7/13頁
文件大?。?/td> 95K
代理商: 74HCT193
December 1990
7
Philips Semiconductors
Product specification
Presettable synchronous 4-bit binary
up/down counter
74HC/HCT193
DC CHARACTERISTICS FOR 74HC
For the DC characteristics see
“74HC/HCT/HCU/HCMOS Logic Family Specifications”
.
Output capability: standard
I
CC
category: MSI
AC CHARACTERISTICS FOR 74HC
GND = 0 V; t
r
= t
f
= 6 ns; C
L
= 50 pF
SYMBOL PARAMETER
T
amb
(
°
C)
UNIT
TEST CONDITIONS
74HC
V
CC
(V)
WAVEFORMS
+
25
40 to
+
85
40 to
+
125
min.
typ.
max. min.
max.
min.
max.
t
PHL
/ t
PLH
propagation delay
CP
U
, CP
D
to Q
n
63
23
18
39
14
11
39
14
11
69
25
20
58
21
17
69
25
20
80
29
23
74
27
22
80
29
23
19
7
6
22
8
6
215
43
37
125
25
21
125
25
21
220
44
37
200
40
34
210
42
36
290
58
49
285
57
48
290
58
49
75
15
13
270
54
46
155
31
26
155
31
26
275
55
47
250
50
43
265
53
45
365
73
62
355
71
60
365
73
62
95
19
16
325
65
55
190
38
32
190
38
32
330
66
56
300
60
51
315
63
54
435
87
74
430
86
73
435
87
74
110
22
19
ns
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
Fig.7
t
PHL
/ t
PLH
propagation delay
CP
U
to TC
U
ns
Fig.8
t
PHL
/ t
PLH
propagation delay
CP
D
to TC
D
ns
Fig.8
t
PHL
/ t
PLH
propagation delay
PL to Q
n
ns
Fig.9
t
PHL
propagation delay
MR to Q
n
ns
Fig.10
t
PHL
/ t
PLH
propagation delay
D
n
to Q
n
ns
Fig.9
t
PHL
/ t
PLH
propagation delay
PL to TC
U
, PL to TC
D
ns
Fig.12
t
PHL
/ t
PLH
propagation delay
MR to TC
U
, MR to TC
D
ns
Fig.12
t
PHL
/ t
PLH
propagation delay
D
n
to TC
U
, D
n
to TC
D
ns
Fig.12
t
THL
/ t
TLH
output transition time
ns
Fig.10
t
W
up, down clock pulse
width HIGH or LOW
100
20
17
125
25
21
150
30
26
ns
Fig.7
相關PDF資料
PDF描述
74HC193 Presettable synchronous 4-bit binary up/down counter
74HCT194 4-bit bidirectional universal shift register
74HC194 4-bit bidirectional universal shift register
74HCT195 4-bit parallel access shift register
74HC195 4-bit parallel access shift register
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