參數(shù)資料
型號： SN54HC393W
廠商： Texas Instruments, Inc.
英文描述： Single Interface IC for Synchronous and Asynchronous Smartcards (3V & 5V); Package: SOIC 24 LEAD; No of Pins: 24; Qty per Container: 30
中文描述： 雙4位二進(jìn)制計數(shù)器
文件頁數(shù)： 5/17頁
文件大小： 542K
代理商： SN54HC393W
SN54HC393, SN74HC393
DUAL 4-BIT BINARY COUNTERS
SCLS143D – DECEMBER 1982 – REVISED JULY 2003
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range, C
L
= 50 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
VCC
TA = 25
°
C
TYP
SN54HC393
MIN
4.2
SN74HC393
MIN
5
UNIT
(OUTPUT)
MIN
MAX
MAX
MAX
fmax
CLK
QA
2 V
6
10
MHz
4.5 V
31
50
21
25
6 V
36
60
25
28
CLK
QA
2 V
50
120
180
150
4.5 V
15
24
36
30
6 V
13
20
31
26
QB
2 V
72
190
285
240
4.5 V
22
38
57
47
tpd
6 V
18
32
48
40
ns
QC
2 V
91
240
360
300
4.5 V
28
48
72
60
6 V
22
41
61
51
QD
2 V
100
290
430
360
4.5 V
32
58
87
72
6 V
24
50
74
62
CLR
Any
2 V
45
165
250
205
tPHL
4.5 V
17
33
49
41
ns
6 V
14
28
42
35
Any
2 V
28
75
110
95
tt
4.5 V
6 V
8
6
15
13
22
19
19
16
ns
operating characteristics, T
A
= 25
°
C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance per counter
No load
40
pF
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