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參數(shù)資料
| 型號： | SN74AS20D |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 門電路 |
| 英文描述： | AS SERIES, DUAL 4-INPUT NAND GATE, PDSO14 |
| 封裝： | PLASTIC, SO-14 |
| 文件頁數(shù)： | 12/18頁 |
| 文件大?。?/td> | 711K |
| 代理商： | SN74AS20D |
SN54ALS20A, SN54AS20, SN74ALS20A, SN74AS20
DUAL 4INPUT POSITIVENAND GATES
SDAS192B APRIL 1982 REVISED DECEMBER 1994
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
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
(INPUT)
(OUTPUT)
SN54ALS20A
SN74ALS20A
MIN
MAX
MIN
MAX
tPLH
A, B, C, or D
Y
1
12.5
3
11
ns
tPHL
A, B, C, or D
Y
1
11
3
10
ns
For conditions shown as MIN or MAX, use the appropriate value specified under recommended operating conditions.
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: SN54AS20
55
°C to 125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74AS20
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
SN54AS20
SN74AS20
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
2
mA
IOL
Low-level output current
20
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
SN54AS20
SN74AS20
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP§
MAX
MIN
TYP§
MAX
UNIT
VIK
VCC = 4.5 V,
II = 18 mA
1.2
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
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
30
112
mA
ICCH
VCC = 5.5 V,
VI = 0
1
1.6
1
1.6
mA
ICCL
VCC = 5.5 V,
VI = 4.5 V
5.4
8.7
5.4
8.7
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.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74AS20DB | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74AS20DE4 | 功能描述:邏輯門 Dual 4-Input Positive-NAND gates RoHS:否 制造商:Texas Instruments 產(chǎn)品:OR 邏輯系列:LVC 柵極數(shù)量:2 線路數(shù)量（輸入/輸出）:2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel |
| SN74AS20DG4 | 功能描述:邏輯門 Dual 4Input Pos NAND Gates RoHS:否 制造商:Texas Instruments 產(chǎn)品:OR 邏輯系列:LVC 柵極數(shù)量:2 線路數(shù)量（輸入/輸出）:2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel |
| SN74AS20DR | 功能描述:邏輯門 Dual 4-Input Positive-NAND gates RoHS:否 制造商:Texas Instruments 產(chǎn)品:OR 邏輯系列:LVC 柵極數(shù)量:2 線路數(shù)量（輸入/輸出）:2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel |
| SN74AS20DRE4 | 功能描述:邏輯門 Dual 4-Input Positive-NAND gates RoHS:否 制造商:Texas Instruments 產(chǎn)品:OR 邏輯系列:LVC 柵極數(shù)量:2 線路數(shù)量（輸入/輸出）:2 / 1 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 傳播延遲時間:3.8 ns 電源電壓-最大:5.5 V 電源電壓-最小:1.65 V 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:DCU-8 封裝:Reel |
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