SN74ABT543A Datasheet, PDF (4/7 Pages) Texas Instruments – OCTAL REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS

SN74ABT543A
OCTAL REGISTERED TRANSCEIVER
WITH 3-STATE OUTPUTS
SCBS464A – JUNE 1992 – REVISED JUNE 1994
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TA = 25°C
MIN TYP† MAX
MIN
VIK
VOH
VOL
II
IOZH‡
IOZL‡
IOFF
ICEX
IO§
ICC
VCC = 4.5 V,
VCC = 4.5 V,
VCC = 5 V,
VCC = 4.5 V
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
VCC = 5.5 V,
VI = VCC or GND
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 0,
VCC = 5.5 V,
VCC = 5.5 V,
VO = 2.7 V
VO = 0.5 V
VI or VO ≤ 4.5 V
VO = 5.5 V
VO = 2.5 V
VCC = 5.5 V,
IO = 0,
A or B ports
VI = VCC or GND
–1.2
2.5
2.5
3
3
2
2
0.55
Control inputs
±1
A or B ports
±100
50
– 50
±100
Outputs high
50
– 50 –100 –180 – 50
Outputs high
1 250
Outputs low
24
34
Outputs disabled
0.5 250
∆ICC¶
VCC = 5.5 V,
One input at 3.4 V,
Other inputs at VCC or GND
1.5
Ci
VI = 2.5 V or 0.5 V
Control inputs
4
Cio
VO = 2.5 V or 0.5 V
A or B ports
7
† _{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.}
MAX
–1.2
0.55
±1
±100
50
– 50
±100
50
–180
250
34
250
1.5
UNIT
V
V
V
µA
µA
µA
µA
µA
mA
µA
mA
µA
mA
pF
pF
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
tw
Pulse duration, LEAB or LEBA low
tsu
Setup time
Data before LEAB or LEBA↑
Data before CEAB or CEBA↑
High
Low
High
Low
th
Hold time
Data after LEAB or LEBA↑
Data after CEAB or CEBA↑
VCC = 5 V,
TA = 25°C
MIN MAX
3.5
2.5
3
2.5
2.5
1
1
MIN MAX UNIT
3.5
ns
2.5
3
ns
2.5
2.5
1
ns
1
4
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