參數(shù)資料
型號: SN74HC193NSR
廠商: TEXAS INSTRUMENTS INC
元件分類: 計數(shù)器
英文描述: HC/UH SERIES, SYN POSITIVE EDGE TRIGGERED 4-BIT BIDIRECTIONAL BINARY COUNTER, PDSO16
封裝: GREEN, PLASTIC, SOP-16
文件頁數(shù): 19/21頁
文件大?。?/td> 757K
代理商: SN74HC193NSR
SN54HC193, SN74HC193
4BIT SYNCHRONOUS UP/DOWN COUNTERS
(DUAL CLOCK WITH CLEAR)
SCLS122D DECEMBER 1982 REVISED OCTOBER 2003
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
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
SN54HC193
SN74HC193
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
2 V
4.2
8
2.8
3.3
fmax
4.5 V
21
55
14
17
MHz
fmax
6 V
24
60
16
19
MHz
2 V
75
165
250
205
UP
CO
4.5 V
24
33
50
41
UP
CO
6 V
20
28
43
35
2 V
75
165
250
205
DOWN
BO
4.5 V
24
33
50
41
tpd
DOWN
BO
6 V
20
28
43
35
ns
tpd
2 V
190
250
375
315
ns
UP or DOWN
Any Q
4.5 V
40
50
75
63
UP or DOWN
Any Q
6 V
35
43
64
54
2 V
190
260
390
325
LOAD
Any Q
4.5 V
40
52
78
65
LOAD
Any Q
6 V
35
44
66
55
2 V
170
240
360
300
tPHL
CLR
Any Q
4.5 V
36
48
72
60
ns
tPHL
CLR
Any Q
6 V
31
41
61
51
ns
2 V
38
75
110
95
tt
Any
4.5 V
8
15
22
19
ns
tt
Any
6 V
6
13
19
16
ns
operating characteristics, TA = 25°C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance
No load
50
pF
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