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參數(shù)資料
| 型號(hào)： | SN74ALS642ADW |
| 廠商： | Texas Instruments, Inc. |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | OCTAL BUS TRANSCEIVERS WITH OPEN-COLLECTOR OUTPUTS |
| 中文描述： | 八路總線收發(fā)器集電極開(kāi)路輸出 |
| 文件頁(yè)數(shù)： | 2/7頁(yè) |
| 文件大?。?/td> | 115K |
| 代理商： | SN74ALS642ADW |
SN74ALS641A, SN74ALS642A, SN74AS641
OCTAL BUS TRANSCEIVERS
WITH OPEN-COLLECTOR OUTPUTS
SDAS300 – MARCH 1995
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
logic diagrams (positive logic)
SN74ALS641A, SN74AS641
A1
B1
19
1
18
2
OE
DIR
To Seven Other Transceivers
SN74ALS642A
A1
B1
19
1
18
2
OE
DIR
To Seven Other Transceivers
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VI: All inputs and I/O ports
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA: SN74ALS641A, SN74ALS642A
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
SN74ALS641A
SN74ALS642A
UNIT
MIN
NOM
MAX
VCC
Supply voltage
4.5
5
5.5
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
V
VOH
High-level output voltage
5.5
V
IOL
Low level output current
24
mA
IOL
Low-level output current
48
mA
TA
Operating free-air temperature
0
70
°C
Applies only to the -1 version and only if VCC is between 4.75 V and 5.25 V
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SN74ALS642AN | OCTAL BUS TRANSCEIVERS WITH OPEN-COLLECTOR OUTPUTS |
| SN74ALS645ADW | OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
| SN74ALS645ADWR | OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
| SN74ALS645AN | OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
| SN74ALS645AN3 | OCTAL BUS TRANSCEIVERS WITH 3-STATE OUTPUTS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74ALS642A-IN | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| SN74ALS642AN | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| SN74ALS643A-1N | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| SN74ALS644A-1DW | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74ALS644AN | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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