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MSM514221B-XXJS Ver la hoja de datos (PDF) - Oki Electric Industry
Número de pieza
componentes Descripción
Fabricante
MSM514221B-XXJS
262,263-Word x 4-Bit Field Memory
Oki Electric Industry
MSM514221B-XXJS Datasheet PDF : 15 Pages
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¡ Semiconductor
MSM514221B
AC Characteristics
(V
CC
= 5 V ±10%, Ta = 0°C to 70°C)
Parameter
MSM514221B-30 MSM514221B-40 MSM514221B-60
Symbol
Unit
Min. Max. Min. Max. Min. Max.
Access Time from SRCK
t
AC
—
25
—
30
—
50 ns
D
OUT
Hold Time from SRCK
t
DDCK
6
—
6
—
6
— ns
D
OUT
Enable Time from SRCK t
DECK
6
25
6
25
6
25 ns
D
OUT
Hold Time from RE
t
DDRE
9
—
9
—
9
— ns
SWCK "H" Pulse Width
t
WSWH
12
—
17
—
17
— ns
SWCK "L" Pulse Width
t
WSWL
12
—
17
—
17
— ns
Input Data Setup Time
t
DS
5
—
5
—
5
— ns
Input Data Hold Time
t
DH
6
—
6
—
6
— ns
WE Enable Setup Time
t
WENS
0
—
0
—
0
— ns
WE Enable Hold Time
t
WENH
5
—
5
—
5
— ns
WE Disable Setup Time
t
WDSS
0
—
0
—
0
— ns
WE Disable Hold Time
t
WDSH
5
—
5
—
5
— ns
WE "H" Pulse Width
t
WWEH
5
—
10
—
10
— ns
WE "L" Pulse Width
t
WWEL
5
—
10
—
10
— ns
RSTW Setup Time
t
RSTWS
0
—
0
—
0
— ns
RSTW Hold Time
t
RSTWH
10
—
10
—
10
— ns
SRCK "H" Pulse Width
t
WSRH
12
—
17
—
17
— ns
SRCK "L" Pulse Width
t
WSRL
12
—
17
—
17
— ns
RE Enable Setup Time
t
RENS
0
—
0
—
0
— ns
RE Enable Hold Time
t
RENH
5
—
5
—
5
— ns
RE Disable Setup Time
RE Disable Hold Time
t
RDSS
0
—
0
—
0
— ns
t
RDSH
5
—
5
—
5
— ns
RE "H" Pulse Width
RE "L" Pulse Width
t
WREH
5
t
WREL
5
—
10
—
10
— ns
—
10
—
10
— ns
RSTR Setup Time
RSTR Hold Time
t
RSTRS
0
—
0
—
0
— ns
t
RSTRH
10
—
10
—
10
— ns
SWCK Cycle Time
SRCK Cycle Time
t
SWC
30
—
40
—
60
— ns
t
SRC
30
—
40
—
60
— ns
Transition Time (Rise and Fall) t
T
3
30
3
30
3
30 ns
9/15
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