SN54ABT543A, SN74ABT543A
OCTAL REGISTERED TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS157F – JANUARY 1991 – REVISED MAY 1997
recommended operating conditions (see Note 3)
SN54ABT543A
MIN
VCC
VIH
VIL
VI
IOH
IOL
∆t/∆v
Supply voltage
High-level input voltage
Low-level input voltage
Input voltage
High-level output current
Low-level output current
Input transition rise or fall rate
Outputs enabled
–55
0
4.5
2
0.8
VCC
–24
48
5
125
–40
0
MAX
5.5
SN74ABT543A
MIN
4.5
2
0.8
VCC
–32
64
5
85
MAX
5.5
UNIT
V
V
V
V
mA
mA
ns/V
°C
TA
Operating free-air temperature
NOTE 3: Unused pins (input or I/O) must be held high or low to prevent them from floating.
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
4.5
VOL
Vhys
II
IOZH‡
IOZL‡
Ioff
ICEX
IO¶
ICC
A or B ports
Control inputs
A or B ports
VCC = 5 5 V
5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 0,
VCC = 5.5 V,
VO = 5.5 V
VCC = 5.5 V,
VCC = 5.5 V,
IO = 0,
VI = VCC or GND
VI = VCC or GND
VO = 2.7 V
VO = 0.5 V
VI or VO
≤
4.5 V
Outputs high
VO = 2.5 V
Outputs high
Outputs low
Outputs disabled
–50*
–100
1
24
0.5
VCC = 4 5 V
4.5
II = –18 mA
IOH = –3 mA
IOH = –3 mA
IOH = –24 mA
IOH = –32 mA
IOL = 48 mA
IOL = 64 mA
100
±1
±100
10§
–10§
±100
50
–180*
250*
30*
250*
1.5
4
7
–50
50
–200
350
34
350
1.5
–50
±1
±100
10§
–10§
±1
±100
10§
–10§
±100
50
–180
250
30
250
1.5
TA = 25°C
MIN TYP†
MAX
–1.2
2.5
3
2
2*
0.55
0.55*
0.55
0.55
2.5
3
2
2
V
mV
µA
µA
µA
µA
µA
mA
µA
mA
µA
mA
pF
pF
SN54ABT543A
MIN
MAX
–1.2
2.5
3
V
SN74ABT543A
MIN
MAX
–1.2
UNIT
V
VOH
∆I
CC#
Ci
Cio
Control inputs
A or B ports
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.
§ This data sheet limit may vary among suppliers.
¶ 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
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