參數(shù)資料
型號: SN74ALVC16721DGG
廠商: TEXAS INSTRUMENTS INC
元件分類: 總線收發(fā)器
英文描述: ALVC/VCX/A SERIES, 20-BIT DRIVER, TRUE OUTPUT, PDSO56
封裝: PLASTIC, TSSOP-56
文件頁數(shù): 5/8頁
文件大?。?/td> 131K
代理商: SN74ALVC16721DGG
SN74ALVC16721
3.3V 20BIT FLIPFLOP
WITH 3STATE OUTPUTS
SCAS267A MARCH 1993 REVISED MAY 1995
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
timing requirements over recommended ranges of supply voltage and operating free-air
temperature (unless otherwise noted) (see Figures 1 and 2)
VCC = 3.3 V
± 0.15 V
VCC = 3.3 V
± 0.3 V
VCC = 2.7 V
UNIT
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
fclock
Clock frequency
0
150
0
150
0
150
MHz
tw
Pulse duration, CLK high or low
3.3
ns
tsu
Setup time
Data before CLK
High or low
4
3.6
3.1
ns
tsu
Setup time
CLKEN before CLK
↑ High or low
3.4
3.1
2.7
ns
th
Hold time
Data after CLK
High or low
0
ns
th
Hold time
CLKEN after CLK
High or low
0
ns
switching characteristics over recommended operating free-air temperature range, CL = 50 pF
(unless otherwise noted) (see Figures 1 and 2)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC = 2.5 V
± 0.2 V
VCC = 2.7 V
VCC = 3.3 V
± 0.3 V
UNIT
PARAMETER
(INPUT)
(OUTPUT)
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
fmax
150
MHz
tpd
CLK
Q
1
7
1
5.7
1
4.9
ns
ten
OE
Q
1
7.4
1
6.5
1
5.4
ns
tdis
OE
Q
1
6.2
1
5.1
1
4.8
ns
operating characteristics, TA = 25°C
PARAMETER
TEST CONDITIONS
VCC = 2.5 V
± 0.2 V
VCC = 3.3 V
± 0.3 V
UNIT
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance
Outputs enabled
CL = 50 pF,
f = 10 MHz
55
59
pF
Cpd
Power dissipation capacitance
Outputs disabled
CL = 50 pF,
f = 10 MHz
46
49
pF
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