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MB81EDS516545 Datasheet, PDF (34/60 Pages) Fujitsu Component Limited. – MEMORY Consumer FCRAM CMOS 512M Bit (4 bank x 2M word x 64 bit) Consumer Applications Specific Memory for SiP | |||
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MB81EDS516545
2. AC Characteristics
Parameter
(Under recommended operating conditions unless otherwise noted)*1, *2
Value
Symbol
Unit
Min.
Max.
DQ Output Access Time from CK/CK (tCK = tCK min)*3, *4, *7
tAC
2
6
ns
RDQS Output Access Time from CK/CK *3, *4
tDQSCK
2
6
ns
Clock High Level Width *3
tCH
2
â¯
ns
Clock Low Level Width *3
tCL
2
â¯
ns
Delay between CK and CK *4
tDC
0.45
0.55
tCK
CL = 2
15
Clock Cycle Time
CL = 3
7.4
tCK
â¯
ns
Tj ⤠+ 105 °C
4.6
CL = 4
Tj ⤠+ 125 °C
5
Tj ⤠+ 105 °C
0.4
â¯
ns
DQ and DM Input Setup Time*3
tDS
Tj ⤠+ 125 °C
0.5
â¯
ns
DQ and DM Input Hold Time*3
Tj ⤠+ 105 °C
0.4
â¯
ns
tDH
Tj ⤠+ 125 °C
0.5
â¯
ns
DQ and DM Input Pulse Width
tDIPW
0.35
â¯
tCK
Address and Control Input Setup Time *3
tIS
0.9
â¯
ns
Address and Control Input Hold Time *3
tIH
0.9
â¯
ns
Address and Control Input Pulse Width
tIPW
0.6
â¯
tCK
DQ Low-Z Time from CK/CK *3, *5
tLZ
0
â¯
ns
DQ High-Z Time from CK/CK *3, *5, *6
tHZ
â¯
6
ns
RDQS to DQ Skew *4
tDQSQ
â¯
0.4
ns
DQ Output Hold Time from RDQS *3, *4
tQH
tDC â 0.5
â¯
ns
WRIT Command to 1st WDQS Latching Transition
tDQSS
0.75
1.25
tCK
WDQS Input High Level Width
tDQSH
0.35
â¯
tCK
WDQS Input Low Level Width
tDQSL
0.35
â¯
tCK
WDQS Falling Edge to CK Setup Time
tDSS
0.2
â¯
tCK
WDQS Falling Edge Hold Time from CK
tDSH
0.2
â¯
tCK
MRS Command Period
tMRD
2
â¯
tCK
Write Preamble Setup Time
tWPRES
0
â¯
ns
Write Postamble Time
tWPST
1
â¯
tCK
(Continued)
34
DS05-11463-1E
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