參數(shù)資料
型號： SN54AS651FK
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, INVERTED OUTPUT, CQCC28
封裝： CERAMIC, CC-28
文件頁數(shù)： 4/34頁
文件大?。?/td> 507K
代理商： SN54AS651FK
SN54ALS652, SN54ALS653, SN54AS651, SN54AS652
SN74ALS651A, SN74ALS652A, SN74ALS653, SN74ALS654, SN74AS651, SN74AS652
OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
SDAS066F – DECEMBER 1983 – REVISED OCTOBER 1996
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: All inputs and A I/O ports
7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
B I / O ports
5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, TA: SN54ALS653
– 55
°C to 125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ALS653, SN74ALS654
0
°C to 70°C
. . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
–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
SN54ALS653
SN74ALS653
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
0.7
0.8
V
VOH
High-level output voltage
A ports
5.5
V
IOH
High-level output current
B ports
–12
–15
mA
IOL
Low-level output current
12
24
mA
fclock
Clock frequency
0
25
0
35
MHz
t
Pulse duration
CLKBA or CLKAB high
20
14.5
ns
tw
Pulse duration
CLKBA or CLKAB low
20
14.5
ns
tsu
Setup time before CLKAB
↑ or CLKBA↑
A or B
15
10
ns
th
Hold time after CLKAB
↑ or CLKBA↑
A or B
5
0
ns
TA
Operating free-air temperature
–55
125
0
70
°C
recommended operating conditions
SN74ALS654
UNIT
MIN
NOM
MAX
UNIT
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
A ports
5.5
V
IOH
High-level output current
B ports
–15
mA
IOL
Low-level output current
24
mA
fclock
Clock frequency
0
35
MHz
t
Pulse duration
CLKBA or CLKAB high
14.5
ns
tw
Pulse duration
CLKBA or CLKAB low
14.5
ns
tsu
Setup time before CLKAB
↑ or CLKBA↑
A or B
10
ns
th
Hold time after CLKAB
↑ or CLKBA↑
A or B
0
ns
TA
Operating free-air temperature
0
70
°C
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