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SN74HC646DW Fiches technique(PDF) 7 Page - Texas Instruments

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No de pièce SN74HC646DW
Description  OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI - Texas Instruments

SN74HC646DW Fiches technique(HTML) 7 Page - Texas Instruments

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SN54HC646, SN74HC646
OCTAL BUS TRANSCEIVERS AND REGISTERS
WITH 3-STATE OUTPUTS
SCLS150B – DECEMBER 1982 – REVISED MAY 1997
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 2)
PARAMETER
FROM
TO
VCC
TA = 25°C
SN54HC646
SN74HC646
UNIT
PARAMETER
(INPUT)
(OUTPUT)
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
2 V
6
11
4.4
5.5
fmax
4.5 V
31
54
22
27
MHz
6 V
36
64
25
31
2 V
65
180
270
225
CLKBA or CLKAB
A or B
4.5 V
18
36
54
45
6 V
14
31
46
38
2 V
50
135
205
170
tpd
A or B
B or A
4.5 V
14
27
41
34
ns
6 V
11
23
35
29
2 V
70
190
285
240
SBA or SAB†
A or B
4.5 V
20
38
57
48
6 V
16
32
48
41
2 V
85
245
370
305
ten
OE
A or B
4.5 V
25
49
74
61
ns
6 V
20
42
63
52
2 V
85
245
370
305
tdis
OE
A or B
4.5 V
25
49
74
61
ns
6 V
20
42
63
52
2 V
80
245
370
305
ten
DIR
A or B
4.5 V
25
49
74
61
ns
6 V
20
42
63
52
2 V
80
245
370
305
tdis
DIR
A or B
4.5 V
25
49
74
61
ns
6 V
20
42
63
52
2 V
28
60
90
75
tt
Any
4.5 V
8
12
18
15
ns
6 V
6
10
15
13
† These parameters are measured with the internal output state of the storage register opposite that of the bus input.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.


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