參數(shù)資料
型號: SN74ABT646DGVR
廠商: TEXAS INSTRUMENTS INC
元件分類: 總線收發(fā)器
英文描述: ABT SERIES, 8-BIT REGISTERED TRANSCEIVER, TRUE OUTPUT, PDSO24
封裝: GREEN, PLASTIC, TVSOP-24
文件頁數(shù): 16/18頁
文件大?。?/td> 539K
代理商: SN74ABT646DGVR
SN54ABT646, SN74ABT646
OCTAL BUS TRANSCEIVERS AND REGISTERS
WITH 3-STATE OUTPUTS
SCBS068E – JULY 1991 – REVISED JULY 1994
2–7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
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
SN54ABT646
SN74ABT646
UNIT
(INPUT)
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
MIN
MAX
fmax
125
MHz
tPLH
CLKBA or CLKAB
AorB
2.2
4
6.8
2.2
7.8
ns
tPHL
CLKBA or CLKAB
A or B
1.7
4
7.4
1.7
8.4
ns
tPLH
AorB
BorA
1.5
3
5.9
1.5
6.9
ns
tPHL
A or B
B or A
1.5
3.3
5.9
1.5
6.9
ns
tPLH
SAB or SBA
BorA
1.5
4
6.1
1.5
7.1
ns
tPHL
SAB or SBA
B or A
1.5
3.6
6.9
1.5
7.9
ns
tPZH
OE
AorB
1
4.3
5.3
1
6.3
ns
tPZL
OE
A or B
2.1
5.8
7.4
2.1
8.8
ns
tPHZ
OE
AorB
1.5
3.5
7.3
1.5
8.3
ns
tPLZ
OE
A or B
1.5
3
7
1.5
7.5
ns
tPZH
DIR
AorB
1.2
4.5
5.7
1.2
6.7
ns
tPZL
DIR
A or B
2.5
6.5
9
2.5
9.5
ns
tPHZ
DIR
AorB
1.5
3.8
6.7
1.5
7.7
ns
tPLZ
DIR
A or B
1.5
3.8
7.2
1.5
8.2
ns
These parameters are measured with the internal output state of the storage register opposite to that of the bus input.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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