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SN74BCT2953 Datasheet(PDF) 3 Page - Texas Instruments

Part No. SN74BCT2953
Description  OCTAL BUS TRANSCEIVER AND REGISTER WITH 3-STATE OUTPUTS
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Maker  TI1 [Texas Instruments]
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SN74BCT2953 Datasheet(HTML) 3 Page - Texas Instruments

   
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SN74BCT2953
OCTAL BUS TRANSCEIVER AND REGISTER
WITH 3STATE OUTPUTS
SCBS105B − DECEMBER 1990 − REVISED NOVEMBER 1993
2−3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251−1443
recommended operating conditions (see Note 2)
MIN
NOM
MAX
UNIT
VCC
Supply voltage
4.5
5
5.5
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
V
IIK
Input clamp current
−18
mA
IOH
High-level output current
A ports
−3
mA
IOH
High-level output current
B ports
−15
mA
IOL
Low-level output current
A ports
24
mA
IOL
Low-level output current
B ports
64
mA
TA
Operating free-air temperature
0
70
°C
NOTE 2: Unused or floating pins (input or I/O) must be held high or low.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
UNIT
VIK
VCC = 4.5 V,
II = − 18 mA
−1.2
V
A port
VCC = 4.5 V
IOH = − 1 mA
2.5
3.4
A port
VCC = 4.5 V
IOH = − 3 mA
2.4
3.3
VOH
IOH = − 3 mA
2.4
3.3
V
VOH
B port
VCC = 4.5 V
IOH = − 12 mA
3.2
V
B port
VCC = 4.5 V
IOH = − 15 mA
2
3.1
VOL
A port
VCC = 4.5 V
IOL = 24 mA
0.35
0.5
V
VOL
B port
VCC = 4.5 V
IOL = 64 mA
0.42
0.55
V
II‡
Control inputs
VCC = 5.5 V,
VI = 5.5 V
1
mA
II‡
A or B ports
VCC = 5.5 V,
VI = 5.5 V
0.1
mA
IIH‡
Control inputs
VCC = 5.5 V,
VI = 2.7 V
70
A
IIH‡
A or B ports
VCC = 5.5 V,
VI = 2.7 V
20
µA
IIL‡
Control inputs
VCC = 5.5 V,
VI = 0.5 V
−70
A
IIL‡
A or B ports
VCC = 5.5 V,
VI = 0.5 V
−20
µA
IOS§
Any A
VCC = 5.5 V,
VO = 0
−60
−150
mA
IOS§
Any B
VCC = 5.5 V,
VO = 0
−100
−250
mA
ICCH¶
VCC = 5.5 V
2
5
mA
ICCL¶
VCC = 5.5 V
38
55
mA
ICCZ
VCC = 5.5 V
2
5
mA
Ci
Control inputs
VCC = 5 V,
VI = 2.5 V or 0.5 V
6
pF
Cio
A or B ports
VCC = 5 V,
VO = 2.5 V or 0.5 V
12.5
pF
† All typical values are at VCC = 5 V, TA = 25°C.
‡ For I/O ports, the parameters IIH and IIL include the off-shoot output current.
§ Not more than one output should be shorted at a time, and the duration of the short circuit should not exceed one second.
¶ ICCH and ICCL are measured in the A-to-B mode.


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