參數(shù)資料
型號(hào): SN74AS280DRG4
廠商: TEXAS INSTRUMENTS INC
元件分類: 算術(shù)邏輯單元
英文描述: AS SERIES, 9-BIT PARITY GENERATOR/CHECKER, COMPLEMENTARY OUTPUT, PDSO14
封裝: GREEN, PLASTIC, SOIC-14
文件頁(yè)數(shù): 9/14頁(yè)
文件大?。?/td> 505K
代理商: SN74AS280DRG4
SN74ALS280, SN74AS280
9BIT PARITY GENERATORS/CHECKERS
SDAS038C DECEMBER 1982 REVISED DECEMBER 1994
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VI
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA: SN74AS280
0
°C to 70°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range
65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
recommended operating conditions
SN74AS280
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
mA
IOL
Low-level output current
20
mA
TA
Operating free-air temperature
0
70
°C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN74AS280
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 = 2 mA
VCC 2
V
VOL
VCC = 4.5 V,
IOL = 20 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
0.5
mA
IO§
VCC = 5.5 V,
VO = 2.25 V
30
112
mA
ICC
VCC = 5.5 V
25
35
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)
SN74AS280
UNIT
MIN
MAX
tPLH
Any
Σ EVEN
3
12
ns
tPHL
Any
Σ EVEN
3
11
ns
tPLH
Any
Σ ODD
3
12
ns
tPHL
Any
Σ ODD
3
11.5
ns
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
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SN74AS280NS 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:
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