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SN54ABT16843 Datasheet(Fiches technique) 6 Page - Texas Instruments

Numéro de pièce SN54ABT16843
Description  18-BIT BUS-INTERFACE D-TYPE LATCHES WITH 3-STATE OUTPUTS
Télécharger  8 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
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SN54ABT16843, SN74ABT16843
18-BIT BUS-INTERFACE D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SCBS223E – OCTOBER 1992 – REVISED MAY 1997
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figure 1)
VCC = 5 V,
TA = 25°C
SN54ABT16843
SN74ABT16843
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
CLR low
3.3
3.3
3.3
tw
Pulse duration
PRE low
3.3
3.3
3.3
ns
LE high
3.3
3.3
3.3
t
Setup time data before LE
High
0.9
0.9
0.9
ns
tsu
Setup time, data before LE
Low
0.6
0.6
0.6
ns
th
Hold time data after LE
High
1.7
1.7
1.7
ns
th
Hold time, data after LE
Low
1.8
1.8
1.8
ns
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, CL = 50 pF (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
TA = 25°C
SN54ABT16843
SN74ABT16843
UNIT
(INPUT)
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
MIN
MAX
tPLH
D
Q
1.6
3.1
4.2
1.6
5.1
1.6
4.8
ns
tPHL
D
Q
1.6
3.2
4.2
1.6
5
1.6
4.8
ns
tPLH
LE
Q
2.3
4
5
2.3
6.3
2.3
5.9
ns
tPHL
LE
Q
2.5
3.9
4.8
2.5
5.6
2.5
5.3
ns
tPLH
PRE
Q
2.1
4
5.1
2.1
6.3
2.1
6.1
ns
tPHL
PRE
Q
2.2
3.7
4.6
2.2
5.3
2.2
5
ns
tPLH
CLR
Q
1.9
3.7
4.8
1.9
5.7
1.9
5.4
ns
tPHL
CLR
Q
2.2
4.2
5.3
2.2
6.1
2.2
6
ns
tPZH
OE
Q
1.6
3.3
4.3
1.6
5.5
1.6
5.4
ns
tPZL
OE
Q
2
3.2
4.6
2
5.9
2
5.8
ns
tPHZ
OE
Q
1.7
4
5.5
1.7
6.4
1.7
6.3
ns
tPLZ
OE
Q
1.7
3.7
4.4
1.7
5.3
1.7
5.2
ns
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.




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