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參數(shù)資料
| 型號： | SN54HC393W |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 計數(shù)器 |
| 英文描述： | HC/UH SERIES, ASYN NEGATIVE EDGE TRIGGERED 4-BIT UP BINARY COUNTER, CDFP14 |
| 封裝： | CERAMIC, DFP-14 |
| 文件頁數(shù)： | 6/10頁 |
| 文件大?。?/td> | 191K |
| 代理商： | SN54HC393W |
SN54HC393, SN74HC393
DUAL 4-BIT BINARY COUNTERS
SCLS143B – DECEMBER 1982 – REVISED MAY 1997
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements over recommended operating free-air temperature range (unless otherwise
noted)
VCC
TA = 25°C
SN54HC393
SN74HC393
UNIT
VCC
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
2 V
0
6
0
4.2
0
5
fclock
Clock frequency
4.5 V
0
31
0
21
0
25
MHz
6 V
0
36
0
25
0
28
2 V
80
120
100
CLK high or low
4.5 V
16
24
20
t
Pulse duration
6 V
14
20
18
ns
tw
Pulse duration
2 V
80
120
100
ns
CLR high
4.5 V
16
24
20
6 V
14
20
18
2 V
25
tsu
Setup time, CLR inactive
4.5 V
5
ns
6 V
5
switching characteristics over recommended operating free-air temperature range, CL = 50 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
VCC
TA = 25°C
SN54HC393
SN74HC393
UNIT
PARAMETER
(INPUT)
(OUTPUT)
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
2 V
6
10
4.2
5
fmax
CLK
QA
4.5 V
31
50
21
25
MHz
6 V
36
60
25
28
2 V
50
120
180
150
QA
4.5 V
15
24
36
30
6 V
13
20
31
26
2 V
72
190
285
240
QB
4.5 V
22
38
57
47
t d
CLK
6 V
18
32
48
40
ns
tpd
CLK
2 V
91
240
360
300
ns
QC
4.5 V
28
48
72
60
6 V
22
41
61
51
2 V
100
290
430
360
QD
4.5 V
32
58
87
72
6 V
24
50
74
62
2 V
45
165
250
205
tPHL
CLR
Any
4.5 V
17
33
49
41
ns
6 V
14
28
42
35
2 V
28
75
110
95
tt
Any
4.5 V
8
15
22
19
ns
6 V
6
13
19
16
operating characteristics, TA = 25°C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance per counter
No load
40
pF
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