SN74FB2031_14 Datasheet, PDF (4/13 Pages) Texas Instruments – 9-BIT TTL/BTL ADDRESS/DATA TRANSCEIVER

SN74FB2031
9-BIT TTL/BTL ADDRESS/DATA TRANSCEIVER
SCBS176N – NOVEMBER 1991 – REVISED JUNE 2001
recommended operating conditions (see Note 2)
MIN NOM MAX UNIT
VCC,
BIAS VCC,
BG VCC
VIH
Supply voltage
High-level input voltage
B port
Except B port
4.5
5 5.5 V
1.62
2.3
V
2
VIL
Low-level input voltage
B port
0.75
Except B port
1.47
V
0.8
IOH
High-level output current
IOL
Low-level output current
A port
A port
B port
–3 mA
24
mA
100
TA
Operating free-air temperature
0
70 °C
NOTE 2: To ensure proper device operation, all unused inputs must be terminated as follows: A and control inputs to VCC(5 V) or GND, and
B inputs to GND only. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
VIK
VOH
VOL
II
IIH^‡
IIL^‡
IOZH
IOZL
IOZPU
IOZPD
IOH
IOS^§
ICC
PARAMETER
B port
Except B port
A port
A port
B port
Except B port
Except B port
Except B port
B port
A port
A port
A port
A port
B port
A port
A port to B port
B port to A port
TEST CONDITIONS
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 4.5 V
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 2.1 V to 5.5 V,
VCC = 2.1 V to 5.5 V,
VCC = 0 to 2.1 V,
VCC = 2.1 V to 0,
VCC = 0 to 5.5 V,
VCC = 5.5 V,
II = –18 mA
II = –40 mA
IOH = –3 mA
IOL = 24 mA
IOL = 80 mA
IOL = 100 mA
VI = 5.5 V
VI = 2.7 V
VI = 0.5 V
VI = 0.75 V
VO = 2.7 V
VO = 0.5 V
VO = 0.5 V to 2.7 V
VO = 0.5 V to 2.7 V
VO = 2.1 V
VO = 0
VCC = 5.5 V,
IO = 0
MIN TYP^†
2.5 3.3
0.35
0.75
–30
MAX
–1.2
–0.5
0.5
1.1
1.15
50
50
–50
–100
50
–50
50
–50
100
–150
78
78
UNIT
V
V
V
µA
µA
µA
µA
µA
µA
µA
µA
mA
mA
Ci
VI = 0.5 V or 2.5 V
4.5
A port
VO = 0.5 V or 2.5 V
8.5
Cio
B port per
IEEE Std 1194.1-1991
VCC = 0 to 5.5 V
† _{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 shorted at a time, and the duration of the short circuit should not exceed one second.}
pF
pF
6
4
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