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参数资料
| 型号： | SN74ALS280N |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 算术逻辑单元 |
| 英文描述： | ALS SERIES, 9-BIT PARITY GENERATOR/CHECKER, COMPLEMENTARY OUTPUT, PDIP14 |
| 封装： | 0.300 INCH, PLASTIC, DIP-14 |
| 文件页数： | 8/14页 |
| 文件大小： | 474K |
| 代理商： | SN74ALS280N |
SN74ALS280, SN74AS280
9BIT PARITY GENERATORS/CHECKERS
SDAS038C DECEMBER 1982 REVISED DECEMBER 1994
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
recommended operating conditions
SN74ALS280
UNIT
MIN
NOM
MAX
UNIT
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
TA
Operating free-air temperature
0
70
°C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN74ALS280
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIK
VCC = 4.5 V,
II = 18 mA
1.5
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
3.3
V
VOL
VCC = 4.5 V
IOL = 12 mA
0.25
0.4
V
VOL
VCC = 4.5 V
IOL = 24 mA
0.35
0.5
V
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
ICC
VCC = 5.5 V
10
16
mA
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.
switching characteristics (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
RL = 500 ,
TA = MIN to MAX§
UNIT
PARAMETER
(INPUT)
(OUTPUT)
SN74ALS280
UNIT
MIN
MAX
tPLH
Any
Σ EVEN
3
20
ns
tPHL
Any
Σ EVEN
3
20
ns
tPLH
Any
Σ ODD
3
20
ns
tPHL
Any
Σ ODD
4
22
ns
§ For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
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