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)： 32/34頁
文件大小： 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
7
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: SN54ALS652
– 55
°C to 125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74ALS651A, SN74ALS652A
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
SN74ALS651A
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
IOH
High-level output current
–15
mA
I
Low level output current
24
mA
IOL
Low-level output current
48
mA
fclock
Clock frequency
0
40
MHz
t
Pulse duration
CLKBA or CLKAB high
12.5
ns
tw
Pulse duration
CLKBA or CLKAB low
12.5
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
Applies only to the SN74ALS651A-1 and only if VCC is maintained between 4.75 V and 5.25 V
recommended operating conditions
SN54ALS652
SN74ALS652A
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
IOH
High-level output current
–12
–15
mA
I
Low level output current
12
24
mA
IOL
Low-level output current
48
mA
fclock
Clock frequency
0
35
0
40
MHz
t
Pulse duration
CLKBA or CLKAB high
14.5
12.5
ns
tw
Pulse duration
CLKBA or CLKAB low
14.5
12.5
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
Applies only to the SN74ALS652A-1 and only if VCC is maintained between 4.75 V and 5.25 V
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