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HCT645 Datasheet(PDF) 4 Page - Texas Instruments

Part # HCT645
Description  OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
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HCT645 Datasheet(HTML) 4 Page - Texas Instruments

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SN54HCT645, SN74HCT645
OCTAL BUS TRANSCEIVERS
WITH 3STATE OUTPUTS
SCLS019D − MARCH 1984 − REVISED AUGUST 2003
4
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
SN54HCT645
SN74HCT645
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tpd
A or B
B or A
4.5 V
20
30
45
38
ns
tpd
A or B
B or A
5.5 V
18
27
41
34
ns
ten
OE
A or B
4.5 V
36
59
89
74
ns
ten
OE
A or B
5.5 V
30
53
80
67
ns
tt
A or B
4.5 V
17
42
63
53
ns
tt
A or B
5.5 V
14
38
57
48
ns
operating characteristics, TA = 25°C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance per transceiver
No load
40
pF
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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