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SN54HC640 Datasheet(PDF) 5 Page - Texas Instruments

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Part No. SN54HC640
Description  OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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SN54HC640 Datasheet(HTML) 5 Page - Texas Instruments

   
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SN54HC640, SN74HC640
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCLS303A – JANUARY 1996 – REVISED MAY 1997
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range, CL = 150 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
VCC
TA = 25°C
SN54HC640
SN74HC640
UNIT
PARAMETER
(INPUT)
(OUTPUT)
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
2 V
44
190
290
235
tpd
A or B
B or A
4.5 V
14
38
58
47
ns
6 V
11
33
49
41
2 V
124
315
470
395
ten
OE
A or B
4.5 V
31
63
94
79
ns
6 V
23
54
80
68
2 V
45
210
315
265
tt
A or B
4.5 V
17
42
63
53
ns
6 V
13
36
53
45
operating characteristics, TA = 25°C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance per transceiver
No load
40
pF


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