參數(shù)資料
型號(hào)： 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)： 6/28頁
文件大小： 658K
代理商： SN54AS646JT
SN54ALS646, SN54ALS648, SN54AS646
SN74ALS646A, SN74ALS648A, SN74AS646, SN74AS648
OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
SDAS039F – DECEMBER 1983 – REVISED JANUARY 1995
14
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics (see Figure 2)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 4.5 V to 5.5 V,
CL = 50 pF,
R1 = 500
,
R2 = 500
,
TA = MIN to MAX
UNIT
SN54AS646
SN74AS646
MIN
MAX
MIN
MAX
fmax*
75
90
MHz
tPLH
CLKBA or CLKAB
AorB
2
9.5
2
8.5
ns
tPHL
CLKBA or CLKAB
A or B
2
10
2
9
ns
tPLH
AorB
BorA
2
11.5
2
9
ns
tPHL
A or B
B or A
1
8
1
7
ns
tPLH
SBA or SAB
AorB
2
13.5
2
11
ns
tPHL
SBA or SAB
A or B
2
11
2
9
ns
tPZH
OE
AorB
2
11
2
9
ns
tPZL
OE
A or B
3
15
3
14
ns
tPHZ
OE
AorB
2
11
2
9
ns
tPLZ
OE
A or B
2
11
2
9
ns
tPZH
DIR
AorB
3
21
3
16
ns
tPZL
DIR
A or B
3
24
3
18
ns
tPHZ
DIR
AorB
2
12
2
10
ns
tPLZ
DIR
A or B
2
12
2
10
ns
* On products compliant to MIL-STD-883, Class B, this parameter is based on characterization data but is not production tested.
For conditions shown MIN or MAX, use the appropriate value specified under recommended operating conditions.
These parameters are measured with the internal output state of the storage register opposite that of the bus input.
相關(guān)PDF資料
PDF描述
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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