參數(shù)資料
型號： SNJ54ALS21AJ
廠商： TEXAS INSTRUMENTS INC
元件分類： 門電路
英文描述： ALS SERIES, DUAL 4-INPUT AND GATE, CDIP14
封裝： 0.300 INCH, CERAMIC, DIP-14
文件頁數(shù)： 9/16頁
文件大?。?/td> 682K
代理商： SNJ54ALS21AJ
SN54ALS21A, SN54AS21, SN74ALS21A, SN74AS21
DUAL 4INPUT POSITIVEAND GATES
SDAS085B APRIL 1982 REVISED DECEMBER 1994
2
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: SN54ALS21A
55
°C to 125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ALS21A
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
SN54ALS21A
SN74ALS21A
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
0.8
V
IOH
High-level output current
0.4
mA
IOL
Low-level output current
4
8
mA
TA
Operating free-air temperature
55
125
0
70
°C
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
SN54ALS21A
SN74ALS21A
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
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
VOL
VCC = 4.5 V
IOL = 4 mA
0.25
0.4
0.25
0.4
V
VOL
VCC = 4.5 V
IOL = 8 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
20
112
30
112
mA
ICCH
VCC = 5.5 V,
VI = 4.5 V
0.85
1.4
0.85
1.4
mA
ICCL
VCC = 5.5 V,
VI = 0
1.4
2.3
1.4
2.3
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)
SN54ALS21A
SN74ALS21A
UNIT
MIN
MAX
MIN
MAX
tPLH
A, B, C, or D
Y
4
18
4
15
ns
tPHL
A, B, C, or D
Y
2
15
2
10
ns
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
相關(guān)PDF資料
PDF描述
SNJ54ALS573CFK ALS SERIES, 8-BIT DRIVER, TRUE OUTPUT, CQCC20
SN74AS573ADWE4 AS SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20
SN74AS573ADWRE4 AS SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20
SNJ54ALS616JD ALS SERIES, 16-BIT ERROR DETECT AND CORRECT CKT, CDIP40
SN74ALS617N ALS SERIES, 16-BIT ERROR DETECT AND CORRECT CKT, PDIP40
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
SNJ54ALS234J 制造商:Rochester Electronics LLC 功能描述:- Bulk
SNJ54ALS240AFK 制造商:Texas Instruments 功能描述:Buffer/Line Driver 8-CH Inverting 3-ST Bipolar 20-Pin LCCC Tube
SNJ54ALS240AJ 制造商:Texas Instruments 功能描述:Buffer/Line Driver 8-CH Inverting 3-ST Bipolar 20-Pin CDIP Tube 制造商:Rochester Electronics LLC 功能描述:OCTAL BUFFER/DRIVER - Bulk 制造商:Texas Instruments 功能描述:BFFR/LINE DRVR 8CH INV 3-ST BIPOLAR 20CDIP - Rail/Tube
SNJ54ALS240AW 制造商:TI 制造商全稱:Texas Instruments 功能描述:OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
SNJ54ALS241BJ 制造商:Rochester Electronics LLC 功能描述:- Bulk
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*