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參數(shù)資料
| 型號： | SN74AS842DW |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | AS SERIES, 10-BIT DRIVER, INVERTED OUTPUT, PDSO24 |
| 封裝： | PLASTIC, SO-24 |
| 文件頁數(shù)： | 9/11頁 |
| 文件大小： | 141K |
| 代理商： | SN74AS842DW |
SN54ALS842, SN74ALS842
10-BIT BUS INTERFACE D-TYPE LATCHES WITH 3-STATE OUTPUTS
SDAS059B – D2910, DECEMBER 1983 – REVISED MAY 1986
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
7
recommended operating conditions
SN54ALS842
SN74ALS842
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
UNIT
VCC
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.7
0.8
V
IOH
High-level output current
–1
– 2.6
mA
IOL
Low level output current
12
24
mA
IOL
Low-level output current
48
mA
tw
Pulse duration, C high
25
20
ns
tsu
Setup time, data before C
↓
16
10
ns
th
Hold time,, data after C
↓
7
5
ns
TA
Operating free-air temperature
–55
125
0
70
°C
The 48-mA limit applies only to the – 1 versions and only if VCC is maintained between 4.75 V and 5.25 V.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54ALS842
SN74ALS842
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNIT
VIK
VCC = 4.5 V,
II = – 18 mA
– 1.2
V
VCC = 4.5 V to 5.5 V,
IOH = – 0.4 mA
VCC –2
VOH
VCC = 4.5 V,
IOH = – 1 mA
2.4
3.3
V
VCC = 4.5 V,
IOH = – 2.6 mA
2.4
3.2
VCC = 4.5 V,
IOL = 12 mA
0.25
0.4
0.25
0.4
VOL
VCC = 4.5 V,
IOL = 24 mA
0.35
0.5
V
VCC = 4.75 V,
IOL = 48 mA (- 1 versions)
0.35
0.5
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,
VO = 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
–30
–112
mA
Outputs high
20
35
20
35
ICC
VCC = 5.5 V
Outputs low
48
74
48
74
mA
Outputs disabled
27
44
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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