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參數(shù)資料
| 型號： | SNJ54BCT646FK |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | BCT/FBT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, CQCC28 |
| 封裝： | CERAMIC, LCC-28 |
| 文件頁數(shù)： | 13/15頁 |
| 文件大?。?/td> | 358K |
| 代理商： | SNJ54BCT646FK |
SN54BCT646, SN74BCT646
OCTAL BUS TRANSCEIVERS AND REGISTERS
WITH 3-STATE OUTPUTS
SCBS037D AUGUST 1989 REVISED MAY 2004
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
switching characteristics over recommended ranges of supply voltage and operating free-air
temperature, CL = 50 pF (unless otherwise noted) (see Figure 2)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
TA = 25°C
SN54BCT646
SN74BCT646
UNIT
PARAMETER
(INPUT)
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
fmax
83
MHz
tPLH
CLKBA or CLKAB
AorB
3.6
7
9.4
3.6
12.4
3.6
11.2
ns
tPHL
CLKBA or CLKAB
A or B
3.9
7
9.2
3.9
11.5
3.9
10.6
ns
tPLH
AorB
BorA
3.1
6
8.1
3.1
11.1
3.1
9.5
ns
tPHL
A or B
B or A
3.7
6.8
8.9
3.7
12.1
3.7
10.5
ns
tPLH
SAB or SBA
AorB
4.5
8.8
11.2
4.5
15.2
4.5
13.8
ns
tPHL
SAB or SBA
(with A or B high)
A or B
3.3
6
8.1
3.3
9.8
3.3
9.1
ns
tPLH
SAB or SBA
AorB
3.9
7.7
10.2
3.9
13.3
3.9
12
ns
tPHL
SAB or SBA
(with A or B low)
A or B
4.7
8.3
10.8
4.7
13.7
4.7
12.9
ns
tPZH
OE
AorB
4
7.9
10.7
4
14
4
13.2
ns
tPZL
OE
A or B
4.6
8.8
11.8
4.6
15.4
4.6
14.4
ns
tPHZ
OE
AorB
4
7.2
9.4
4
12
4
10.9
ns
tPLZ
OE
A or B
3.4
7
9.3
3.4
11.6
3.4
10.5
ns
tPZH
DIR
AorB
2.8
7.8
10.7
2.8
14
2.8
13.1
ns
tPZL
DIR
A or B
3.8
8.9
11.9
3.8
15.6
3.8
14.6
ns
tPHZ
DIR
AorB
3.8
8.4
10.7
3.8
13.2
3.8
12.6
ns
tPLZ
DIR
A or B
3.2
7.3
9.9
3.2
12.6
3.2
11.8
ns
These parameters are measured with the internal output state of the storage register opposite that of the bus input.
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| SNJ54BCT760J | 制造商:Texas Instruments 功能描述: 制造商:Texas Instruments 功能描述:Buffer/Line Driver 8-CH Non-Inverting 3-ST/Open Collector BiCMOS 20-Pin CDIP Tube |
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