M2S28D20ATP Ver la hoja de datos (PDF) - MITSUBISHI ELECTRIC
Número de pieza
componentes Descripción
Fabricante
M2S28D20ATP Datasheet PDF : 36 Pages
| |||
DDR SDRAM (Rev.0.1)
Jun,'00 Preliminary
MITSUBISHI LSIs
M2S28D20/ 30/ 40ATP
128M Double Data Rate Synchronous DRAM
AC TIMING REQUIREMENTS
(Ta=0 ~ 70oC, Vdd = VddQ = 2.5V +0.2V, Vss = VssQ = 0V, unless otherwise noted)
Symbol
AC Characteristics Parameter
tAC DQ Output Valid data delay time from CLK//CLK
tDQSCK DQ Output Valid data delay time from CLK//CLK
tCH CLK High level width
tCL CLK Low level width
tCK CLK cycle time
tDH Input Setup time (DQ,DM)
tDS Input Hold time(DQ,DM)
tDIPW DQ and DM input pulse width (for each input)
tHZ Data-out-high impedance time from CLK//CLK
tLZ Data-out-low impedance time from CLK//CLK
tDQSQ DQ Valid data delay time from DQS
-75
Min.
Max
-0.75
0.75
-0.75
0.75
0.45
0.55
0.45
0.55
7.5
15
10
15
0.5
0.5
1.75
-0.75 0.75
-0.75 0.75
-0.5
0.5
-10
Min.
Max
-0.8
0.8
-0.8
0.8
0.45
0.55
0.45
0.55
8
15
10
15
0.6
0.6
2
-0.8
0.8
-0.8
0.8
-0.6
0.6
Unit Notes
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
14
ns
14
ns
tHP Clock half period
tCLmin or
tCLmin or
tCHmin
tCHmin
ns
tQH Output DQS valid window
tDQSS Write command to first DQS latching transition
tDQSH DQS input High level width
tDQSL DQS input Low level width
tDSS DQS falling edge to CLK setup time
tDSH DQS falling edge hold time from CLK
tMRD Mode Register Set command cycle time
tWPRES Write preamble setup time
tWPST Write postamble
tWPRE Write preamble
tIS Input Setup time (address and control)
tIH Input Hold time (address and control)
tRPST Read postamble
tRPRE Read preamble
tQPST /QFC postamble during reads
tQPRE /QFC preamble during reads
tQCK /QFC output access time from CLK//CLK, for write
tQOH /QFC output hold time for writes
tHP-0.75
tHP-1.0
ns
0.75
1.25
0.75
1.25
tCK
0.35
0.35
tCK
0.35
0.35
tCK
0.2
0.2
tCK
0.2
0.2
tCK
15
15
ns
0
0
ns
16
0.4
0.6
0.4
0.6
tCK
15
0.25
0.25
tCK
0.9
1.2
ns
19
0.9
1.2
ns
19
0.4
0.6
0.4
0.6
tCK
0.9
1.1
0.9
1.1
tCK
0.4
0.6
0.4
0.6
tCK
0.9
1.1
0.9
1.1
tCK
4
4
ns
1.25
2
1.25
2
ns
MITSUBISHI ELECTRIC
18
Share Link: 