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参数资料
| 型号： | SNJ54ABT843W |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | ABT SERIES, 9-BIT DRIVER, TRUE OUTPUT, CDFP24 |
| 封装： | CERAMIC, DFP-24 |
| 文件页数： | 15/19页 |
| 文件大小： | 593K |
| 代理商： | SNJ54ABT843W |
SN54ABT843, SN74ABT843
9-BIT BUS-INTERFACE D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SCBS197D – FEBRUARY 1991 – REVISED MAY 1997
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figures 1 and 2)
VCC = 5 V,
TA = 25°C
SN54ABT843
SN74ABT843
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
CLR low
5.5
tw
Pulse duration
PRE low
4.5
ns
LE low
3.3
3.4
Data before LE
↓
Low
2.5
t
Setup time
Data before LE
↓
High
3
ns
tsu
Setup time
PRE inactive
1.6
ns
CLR inactive
2
th
Hold time data after LE
↓
High
1
ns
th
Hold time, data after LE
↓
Low
1.5
2.3
1.5
ns
This data sheet limit may vary among suppliers.
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, CL = 50 pF (unless otherwise noted) (see Figures 1 and 2)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
TA = 25°C
SN54ABT843
SN74ABT843
UNIT
(INPUT)
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
MIN
MAX
tPLH
D
Q
1.2
3.8
5.2
1.2
7.8
1.2
6.7
ns
tPHL
D
Q
1.5
3.4
6.3
1.5
7.3
1.5
7.2
ns
tPLH
LE
Q
1.7
4.4
5.6
1.7
8.3
1.7
7.2
ns
tPHL
LE
Q
1.9
4.1
6.3
1.3
7.2
1.9
6.9
ns
tPLH
PRE
Q
2.2
5
6.2
2.2
8.3
2.2
7.4
ns
tPHL
PRE
Q
2.1
4.1
6.5
2.1
7.5
2.1
7.2
ns
tPLH
CLR
Q
2
4.4
6.3
2
7.6
2
7.1
ns
tPHL
CLR
Q
1.9
4.5
6.8
1.9
8.1
1.9
8
ns
tPZH
OE
Q
1
3.4
4.5
1
6.4
1
5.7
ns
tPZL
OE
Q
2
4.3
5.7
2
6.6
2
6.5
ns
tPHZ
OE
Q
2.4
4.9
6.2
2.4
7.3
2.4
6.8
ns
tPLZ
OE
Q
1.5
4.2
6.3
1.5
7
1.5
5.9
ns
This data sheet limit may vary among suppliers.
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