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SN54HC640 Datasheet(PDF) 4 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) 4 Page - Texas Instruments

   
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SN54HC640, SN74HC640
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCLS303A – JANUARY 1996 – REVISED MAY 1997
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
SN54HC640
SN74HC640
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
2 V
1.9
1.998
1.9
1.9
IOH = –20 µA
4.5 V
4.4
4.499
4.4
4.4
VOH
VI = VIH or VIL
6 V
5.9
5.999
5.9
5.9
V
IOH = –6 mA
4.5 V
3.98
4.3
3.7
3.84
IOH = –7.8 mA
6 V
5.48
5.8
5.2
5.34
2 V
0.002
0.1
0.1
0.1
IOL = 20 µA
4.5 V
0.001
0.1
0.1
0.1
VOL
VI = VIH or VIL
6 V
0.001
0.1
0.1
0.1
V
IOL = 6 mA
4.5 V
0.17
0.26
0.4
0.33
IOL = 7.8 mA
6 V
0.15
0.26
0.4
0.33
II
DIR or OE
VI = VCC or 0
6 V
±0.1
±100
±1000
±1000
nA
IOZ
A or B
VO = VCC or 0
6 V
±0.01
±0.5
±10
±5
µA
ICC
VI = VCC or 0,
IO = 0
6 V
8
160
80
µA
Ci
DIR or OE
2 V to 6 V
3
10
10
10
pF
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
SN54HC640
SN74HC640
UNIT
PARAMETER
(INPUT)
(OUTPUT)
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
2 V
29
105
160
130
tpd
A or B
B or A
4.5 V
10
21
32
26
ns
6 V
8
18
27
22
2 V
109
230
340
290
ten
OE
A or B
4.5 V
27
46
68
58
ns
6 V
20
39
58
49
2 V
40
150
225
190
tdis
OE
A or B
4.5 V
18
30
45
38
ns
6 V
16
26
38
32
2 V
20
60
90
75
tt
A or B
4.5 V
8
12
18
15
ns
6 V
6
10
15
13


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