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参数资料
| 型号： | SN74AS841ADWR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | AS SERIES, 10-BIT DRIVER, TRUE OUTPUT, PDSO24 |
| 封装： | PLASTIC, SO-24 |
| 文件页数： | 8/13页 |
| 文件大小： | 257K |
| 代理商： | SN74AS841ADWR |
SN74ALS841, SN74AS841A, SN74ALS842
10-BIT BUS-INTERFACE D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SDAS059C – DECEMBER 1983 – REVISED JANUARY 1995
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
SN74ALS841
SN74ALS842
UNIT
MIN
NOM
MAX
VCC
Supply voltage
4.5
5
5.5
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
V
IOH
High-level output current
– 2.6
mA
IOL
Low-level output current
24
mA
tw
Pulse duration, LE high
20
ns
tsu
Setup time, data before LE
↓
10
ns
th
Hold time, data after LE
↓
5
ns
TA
Operating free-air temperature
0
70
°C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN74ALS841
SN74ALS842
UNIT
MIN
TYP
MAX
VIK
VCC = 4.5 V,
II = – 18 mA
– 1.2
V
VOH
VCC = 4.5 V to 5.5 V,
IOH = – 0.4 mA
VCC –2
V
VOH
VCC = 4.5 V,
IOH = – 2.6 mA
2.4
3.2
V
VOL
VCC =4 5V
IOL = 12 mA
0.25
0.4
V
VOL
VCC = 4.5 V
IOL = 24 mA
0.35
0.5
V
IOZH
VCC = 5.5 V,
VO = 2.7 V
20
A
IOZL
VCC = 5.5 V,
VO = 0.4 V
–20
A
II
VCC = 5.5 V,
VI = 7 V
0.1
mA
IIH
VCC = 5.5 V,
VI = 2.7 V
20
A
IIL
VCC = 5.5 V,
VI = 0.4 V
– 0.1
mA
IO
VCC = 5.5 V,
VO = 2.25 V
–30
–112
mA
Outputs high
19
30
SN74ALS841
VCC = 5.5 V
Outputs low
38
62
ICC
Outputs disabled
23
40
mA
ICC
Outputs high
20
35
mA
SN74ALS842
VCC = 5.5 V
Outputs low
48
74
Outputs disabled
27
44
All typical values are at VCC = 5 V, TA = 25°C.
The output conditions have been chosen to produce a current that closely approximates one half of the true short-circuit output current, IOS.
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