SN54ABT245A_16 Datasheet, PDF (4/27 Pages) Texas Instruments – OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

SN54ABT245A, SN74ABT245B
OCTAL BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS081L − JANUARY 1991 − REVISED APRIL 2005
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
T_A = 25°C
SN54ABT245A SN74ABT245B
MIN TYP^† MAX MIN MAX MIN MAX
V_IK
V_OH
V_OL
V_hys
V_CC = 4.5 V,
V_CC = 4.5 V,
V_CC = 5 V,
V_CC = 4.5 V
V_CC = 4.5 V
I_I = −18 mA
I_OH = −3 mA
I_OH = −3 mA
I_OH = −24 mA
I_OH = −32 mA
I_OL = 48 mA
I_OL = 64 mA
−1.2
2.5
3
2
2*
0.55
0.55*
100
−1.2
2.5
3
2
0.55
−1.2
2.5
3
2
0.55
I_I
I_OZPU
I_OZPD
I_OZH‡
I_OZL‡
I_off
I_CEX
I_O§
I_CC
Control inputs
A or B ports
A or B ports
V_CC = 0 to 5.5 V, V_I = V_CC or GND
V_CC = 2.1 V to 5.5 V,
V_I = V_CC or GND
V_CC = 0 to 2.1 V,
V_O = 0.5 V to 2.7 V, OE = X
V_CC = 2.1 V to 0,
V_O = 0.5 V to 2.7 V, OE = X
V_CC = 2.1 V to 5.5 V,
V_O = 2.7 V, OE ≥ 2 V
V_CC = 2.1 V to 5.5 V,
V_O = 0.5 V, OE ≥ 2 V
V_CC = 0,
V_I or V_O ≤ 5.5 V
V_CC = 5.5 V,
V_O = 5.5 V
Outputs high
V_CC = 5.5 V,
V_O = 2.5 V
V_CC = 5.5 V,
I_O = 0,
V_I = V_CC or GND
Outputs high
Outputs low
Outputs disabled
±1
±20
±50
±50
10
−10
±100
50
−50 −140 −180
5 250
22
30
1 250
±1
±100
±50
±50
10
−10
50
−50 −180
250
30
250
±1
±20
±50
±50
10
−10
±100
50
−50 −180
250
30
250
Data inputs
ΔI_CC¶
V_CC = 5.5 V,
One input at 3.4 V,
Other inputs at
V_CC or GND
Outputs enabled
Outputs disabled
1.5
1.5
1.5
50
50
50
Control inputs
V_CC = 5.5 V, One input at 3.4 V,
Other inputs at V_CC or GND
1.5
1.5
1.5
C_i
Control inputs V_I = 2.5 V or 0.5 V
4
C_io
A or B ports V_O = 2.5 V or 0.5 V
8
* 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.}
UNIT
V
V
V
mV
μA
μA
μA
μA
μA
μA
μA
mA
μA
mA
μA
mA
μA
mA
pF
pF
4
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