参数资料
型号: SN74BCT651NT
厂商: TEXAS INSTRUMENTS INC
元件分类: 总线收发器
英文描述: BCT/FBT SERIES, 8-BIT REGISTERED TRANSCEIVER, INVERTED OUTPUT, PDIP24
封装: 0.300 INCH, PLASTIC, DIP-24
文件页数: 7/10页
文件大小: 231K
代理商: SN74BCT651NT
SN74BCT651
OCTAL BUS TRANSCEIVER AND REGISTER
WITH 3STATE OUTPUTS
SCBS054A AUGUST 1990 REVISED NOVEMBER 1993
26
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 Note 2)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 5 V,
TA = 25°C
MIN
MAX
UNIT
PARAMETER
(INPUT)
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
UNIT
fmax
85
MHz
tPLH
CLKBA or CLKAB
A or B
3.2
7
10
3.2
11.7
ns
tPHL
CLKBA or CLKAB
A or B
3.9
7.3
10.2
3.9
11.8
ns
tPLH
A or B
B or A
3.2
7.3
10.4
3.2
12.6
ns
tPHL
A or B
B or A
2.7
5.9
8.5
2.7
9.8
ns
tPLH
SAB or SBA
A or B
2.8
6
8.6
2.8
9.8
ns
tPHL
SAB or SBA
(with A or B high)
A or B
4.8
9.4
12.8
4.8
15.5
ns
tPLH
SBA or SAB
A or B
3.9
8.6
12.1
3.9
14.6
ns
tPHL
SBA or SAB
(with A or B low)
A or B
4.4
8.1
11.1
4.4
12.8
ns
tPZH
OEBA or OEAB
A or B
3.3
7.1
9.8
3.3
12
ns
tPZL
OEBA or OEAB
A or B
3.8
7.8
10.8
3.8
13.1
ns
tPHZ
OEBA or OEAB
A or B
3.6
6.6
9
3.6
10.2
ns
tPLZ
OEBA or OEAB
A or B
2.8
5.8
8.4
2.8
9.6
ns
tPZH
DIR
A or B
2.2
5.1
7.3
2.2
8.3
ns
tPZL
DIR
A or B
2.8
5.9
8.5
2.8
9.7
ns
tPHZ
DIR
A or B
4.2
8
12.8
4.2
15
ns
tPLZ
DIR
A or B
3.8
7.4
10.2
3.8
12.3
ns
These parameters are measured with the internal output state of the storage register opposite to that of the bus input.
NOTE 2: Load circuits and voltage waveforms are shown in Section 1.
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