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參數(shù)資料
| 型號： | SN54AS646JT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | AS SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CDIP24 |
| 封裝： | CERAMIC, DIP-24 |
| 文件頁數(shù)： | 4/28頁 |
| 文件大?。?/td> | 658K |
| 代理商： | SN54AS646JT |
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SN54ALS646, SN54ALS648, SN54AS646
SN74ALS646A, SN74ALS648A, SN74AS646, SN74AS648
OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
SDAS039F – DECEMBER 1983 – REVISED JANUARY 1995
12
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage, VI: Control inputs
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I / O ports
5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA: SN54AS646
– 55
°C to 125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74AS646
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
SN54AS646
SN74AS646
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
–12
–15
mA
IOL
Low-level output current
32
48
mA
fclock*
Clock frequency
0
75
0
90
MHz
t *
Pulse duration
CLKBA or CLKAB high
6
5
ns
tw*
Pulse duration
CLKBA or CLKAB low
7
6
ns
tsu*
Setup time, A before CLKAB
↑ or B before CLKBA↑
7
6
ns
th*
Hold time, A after CLKAB
↑ or B before CLKBA
0
ns
TA
Operating free-air temperature
–55
125
0
70
°C
* On products compliant to MIL-STD-883, Class B, this parameter is based on characterization data but is not production tested.
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| SNJ54AS646JT | AS SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CDIP24 |
| SNJ54ALS648FK | ALS SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, CQCC28 |
| SNJ54AS646FK | AS SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CQCC28 |
| SN74ALS646A-1DW | ALS SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24 |
| SN74ALS648ADWRE4 | ALS SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDSO24 |
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