SCBS081L − JANUARY 1991 − REVISED APRIL 2005
SN54ABT245A, SN74ABT245B
OCTAL BUS TRANSCEIVERS
WITH 3 STATE OUTPUTS
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
VIK
TEST CONDITIONS
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 5 V,
VCC = 4.5 V
VOL
Vhys
Control inputs
II
A or B ports
VCC = 0 to 5.5 V, VI = VCC or GND
VCC = 2.1 V to 5.5 V,
VI = VCC or GND
VCC = 0 to 2.1 V,
VO = 0.5 V to 2.7 V, OE = X
VCC = 2.1 V to 0,
VO = 0.5 V to 2.7 V, OE = X
VCC = 2.1 V to 5.5 V,
VO = 2.7 V, OE
≥
2 V
VCC = 2.1 V to 5.5 V,
VO = 0.5 V, OE
≥
2 V
VCC = 0,
VCC = 5.5 V,
VO = 5.5 V
VCC = 5.5 V,
A or B ports
VCC = 5.5 V,
IO = 0,
VI = VCC or GND
VI or VO
≤
5.5 V
Outputs high
VO = 2.5 V
Outputs high
Outputs low
Outputs disabled
−50
−140
5
22
1
VCC = 4.5 V
II = −18 mA
IOH = −3 mA
IOH = −3 mA
IOH = −24 mA
IOH = −32 mA
IOL = 48 mA
IOL = 64 mA
100
±1
±20
±50
±50
10
−10
±100
50
−180
250
30
250
1.5
50
1.5
4
8
−50
50
−180
250
30
250
1.5
50
1.5
−50
±1
±100
±50
±50
10
−10
±1
±20
±50
±50
10
−10
±100
50
−180
250
30
250
1.5
50
1.5
µA
µA
µA
µA
µA
µA
µA
mA
µA
mA
µA
mA
µA
mA
pF
pF
TA = 25°C
MIN TYP†
MAX
−1.2
2.5
3
2
2*
0.55
0.55*
0.55
0.55
V
mV
2.5
3
2
2
SN54ABT245A
MIN
MAX
−1.2
2.5
3
V
SN74ABT245B
MIN
MAX
−1.2
UNIT
V
VOH
IOZPU
IOZPD
IOZH‡
IOZL‡
Ioff
ICEX
IO§
ICC
Data inputs
∆I
CC¶
Control inputs
Ci
Cio
Control inputs
A or B ports
VCC = 5.5 V,
Outputs enabled
One input at 3.4 V,
Other inputs at
Outputs disabled
VCC or GND
VCC = 5.5 V, One input at 3.4 V,
Other inputs at VCC or GND
VI = 2.5 V or 0.5 V
VO = 2.5 V or 0.5 V
* On products compliant to MIL-PRF-38535, this parameter does not apply.
† All typical values are at VCC = 5 V.
‡ The parameters IOZH and IOZL include the input leakage current.
§ Not more than one output should be tested at a time, and the duration of the test should not exceed one second.
¶ This is the increase in supply current for each input that is at the specified TTL voltage level, rather than VCC or GND.
4
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•
DALLAS, TEXAS 75265
TI [ TEXAS INSTRUMENTS ]
