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SN54BCT640 Datasheet(HTML) 3 Page - Texas Instruments

Part No. SN54BCT640
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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SN54BCT640 Datasheet(HTML) 3 Page - Texas Instruments

 
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SN54BCT640, SN74BCT640
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS025C – SEPTEMBER 1988 – REVISED APRIL 1994
2–3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
SN54BCT640
SN74BCT640
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
UNIT
VCC
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
VIH
High-level input voltage
2
2
V
VIL
Low-level input voltage
0.8
0.8
V
IIK
Input clamp current
–18
–18
mA
IOH
High level output current
A port
–3
–3
mA
IOH
High-level output current
B port
–12
–15
mA
IOL
Low level output current
A port
20
24
mA
IOL
Low-level output current
B port
48
64
mA
TA
Operating free-air temperature
–55
125
0
70
°C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54BCT640
SN74BCT640
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
MIN
TYP†
MAX
UNIT
VIK
VCC = 4.5 V,
II = –18 mA
–1.2
–1.2
V
A port
VCC =4 5V
IOH = –1 mA
2.5
3.4
2.5
3.4
A port
VCC = 4.5 V
IOH = – 3 mA
2.4
3.3
2.4
3.3
VOH
IOH = – 3 mA
2.4
3.3
2.4
3.3
V
B port
VCC = 4.5 V
IOH = –12 mA
2
3.2
IOH = –15 mA
2
3.1
A port
VCC =4 5V
IOL = 20 mA
0.3
0.5
VOL
A port
VCC = 4.5 V
IOL = 24 mA
0.35
0.5
V
VOL
B port
VCC =4 5V
IOL = 48 mA
0.38
0.55
V
B port
VCC = 4.5 V
IOL = 64 mA
0.42
0.55
I
A or B port
VCC =5 5V
VI =5 5V
1
1
mA
II
Control inputs
VCC = 5.5 V,
VI = 5.5 V
0.1
0.1
mA
I
A or B port
VCC =5 5V
VI =2 7V
70
70
µA
IIH‡
Control inputs
VCC = 5.5 V,
VI = 2.7 V
20
20
µA
I ‡
A or B port
VCC =5 5V
VI =0 5V
– 0.6
– 0.6
mA
IIL‡
Control inputs
VCC = 5.5 V,
VI = 0.5 V
– 0.65
– 0.65
mA
I
§
A port
VCC =5 5V
VO =0
–60
–150
–60
–150
mA
IOS§
B port
VCC = 5.5 V,
VO = 0
–100
– 225
–100
– 225
mA
ICCL
A to B
VCC = 5.5 V
53
84
53
94
mA
ICCH
A to B
VCC = 5.5 V
23
37
23
41
mA
ICCZ
VCC = 5.5 V
4
10
4
11
mA
† All typical values are at VCC = 5 V, TA = 25°C.
‡ For I/O ports, the parameters IIH and IIL include the off-state output current.
§ Not more than one output should be tested at a time, and the duration of the test should not exceed one second.


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