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SN74ABT543A 数据表(PDF) 4 Page - Texas Instruments

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部件名 SN74ABT543A
功能描述  OCTAL REGISTERED TRANSCEIVER WITH 3-STATE OUTPUTS
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

SN74ABT543A 数据表(HTML) 4 Page - Texas Instruments

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SN74ABT543A
OCTAL REGISTERED TRANSCEIVER
WITH 3-STATE OUTPUTS
SCBS464A – JUNE 1992 – REVISED JUNE 1994
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
TA = 25°C
MIN
MAX
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP†
MAX
MIN
MAX
UNIT
VIK
VCC = 4.5 V,
II = – 18 mA
–1.2
–1.2
V
VCC = 4.5 V,
IOH = – 3 mA
2.5
2.5
VOH
VCC = 5 V,
IOH = – 3 mA
3
3
V
VOH
VCC =4 5V
IOH = –24 mA
2
V
VCC = 4.5 V
IOH = – 32 mA
2
VOL
VCC =4 5V
IOL = 48 mA
0.55
V
VOL
VCC = 4.5 V
IOL = 64 mA
0.55
V
II
VCC =5 5V
VI =VCC or GND
Control inputs
±1
±1
µA
II
VCC = 5.5 V,
VI = VCC or GND
A or B ports
±100
±100
µA
IOZH‡
VCC = 5.5 V,
VO = 2.7 V
50
50
µA
IOZL‡
VCC = 5.5 V,
VO = 0.5 V
–50
–50
µA
IOFF
VCC = 0,
VI or VO ≤ 4.5 V
±100
±100
µA
ICEX
VCC = 5.5 V,
VO = 5.5 V
Outputs high
50
50
µA
IO§
VCC = 5.5 V,
VO = 2.5 V
–50
–100
–180
–50
–180
mA
VCC = 5.5 V,
Outputs high
1
250
250
µA
ICC
VCC 5.5 V,
IO = 0,
A or B ports
Outputs low
24
34
34
mA
VI = VCC or GND
Outputs disabled
0.5
250
250
µA
∆ICC¶
VCC = 5.5 V,
One input at 3.4 V,
Other inputs at VCC or GND
1.5
1.5
mA
Ci
VI = 2.5 V or 0.5 V
Control inputs
4
pF
Cio
VO = 2.5 V or 0.5 V
A or B ports
7
pF
† 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.
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted)
VCC = 5 V,
TA = 25°C
MIN
MAX
UNIT
MIN
MAX
tw
Pulse duration, LEAB or LEBA low
3.5
3.5
ns
Data before LEAB or LEBA
High
2.5
2.5
t
Setup time
Data before LEAB or LEBA
Low
3
3
ns
tsu
Setup time
Data before CEAB or CEBA
High
2.5
2.5
ns
Data before CEAB or CEBA
Low
2.5
2.5
th
Hold time
Data after LEAB or LEBA
1
1
ns
th
Hold time
Data after CEAB or CEBA
1
1
ns


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