參數(shù)資料
型號: SN74ALS280D
廠商: Texas Instruments, Inc.
英文描述: 9-BIT PARITY GENERATORS/CHECKERS
中文描述: 9位奇偶產(chǎn)生器/
文件頁數(shù): 3/12頁
文件大?。?/td> 346K
代理商: SN74ALS280D
SN74ALS280, SN74AS280
9-BIT PARITY GENERATORS/CHECKERS
SDAS038C – DECEMBER 1982 – REVISED DECEMBER 1994
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions
SN74ALS280
MIN
NOM
UNIT
MAX
VCC
VIH
VIL
IOH
IOL
TA
Supply voltage
4.5
5
5.5
V
High-level input voltage
2
V
Low-level input voltage
0.8
V
High-level output current
–2.6
mA
Low-level output current
24
mA
°
C
Operating free-air temperature
0
70
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN74ALS280
MIN
TYP
UNIT
MAX
VIK
VCC = 4.5 V,
VCC = 4.5 V to 5.5 V,
VCC = 4.5 V,
II = –18 mA
IOH = –0.4 mA
IOH = –2.6 mA
IOL = 12 mA
IOL = 24 mA
VI = 7 V
VI = 2.7 V
VI = 0.4 V
VO = 2.25 V
–1.5
V
VOH
VCC –2
2.4
V
3.3
VOL
VCC= 4 5 V
VCC = 4.5 V
0.25
0.4
V
0.35
0.5
II
IIH
IIL
IO
ICC
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V,
VCC = 5.5 V
0.1
mA
μ
A
mA
20
–0.1
–30
–112
mA
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§
SN74ALS280
MIN
3
UNIT
MAX
tPLH
tPHL
tPLH
tPHL
Any
Σ
EVEN
20
ns
3
20
Any
Σ
ODD
3
4
20
22
ns
§For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
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SN74ALS280DR 功能描述:奇偶功能 9-Bit Odd/Even Prty Generators/Checkers RoHS:否 制造商:Texas Instruments 電路數(shù)量:1 位數(shù):9 邏輯系列:74AC 封裝 / 箱體:SOIC-14 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時間:263 ns 工作電源電壓:1.8 V, 2.5 V, 3.3 V, 5 V 最大工作溫度:+ 70 C 最小工作溫度:- 55 C 封裝:Reel
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