edd51323dbh-ls Elpida Memory, Inc., edd51323dbh-ls Datasheet - Page 8
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edd51323dbh-ls
Manufacturer Part Number
edd51323dbh-ls
Description
512m Bits Ddr Mobile Ram
Manufacturer
Elpida Memory, Inc.
Datasheet
1.EDD51323DBH-LS.pdf
(59 pages)
AC Characteristics
(TA = 25 C to +85 C, VDD and VDDQ = 1.7V to 1.95V, VSS and VSSQ = 0V)
Parameter
Clock cycle time
CK high-level width
CK low-level width
CK half period
DQ output access time from CK, /CK
DQS-in cycle time
DQS output access time from CK, /CK
DQ-out high-impedance time from CK,
/CK
DQ-out low-impedance time from CK,
/CK
DQS to DQ skew
DQ/DQS output hold time from DQS
Data hold skew factor
DQ and DM input setup time
DQ and DM input hold time
DQ and DM input pulse width
Read preamble
Read postamble
Write preamble setup time
Write preamble
Write postamble
Write command to first DQS latching
transition
DQS falling edge to CK setup time
DQS falling edge hold time from CK
DQS input high pulse width
DQS input low pulse width
Address and control input setup time
Address and control input hold time
Address and control input pulse width
Mode register set command cycle time
Active to Precharge command period
Active to Active/Auto-refresh command
period
Auto-refresh to Active/Auto-refresh
command period
Active to Read/Write delay
Precharge to active command period
Column address to column address
delay
Active to active command period
Write recovery time
Preliminary Data Sheet E1432E11 (Ver. 1.1)
Symbol
tCK
tCH
tCL
tHP
tAC
tDSC
tDQSCK
tHZ
tLZ
tDQSQ
tQH
tQHS
tDS
tDH
tDIPW
tRPRE
tRPST
tWPRES
tWPRE
tWPST
tDQSS
tDSS
tDSH
tDQSH
tDQSL
tIS
tIH
tIPW
tMRD
tRAS
tRC
tRFC
tRCD
tRP
tCCD
tRRD
tWR
-5BLS
min.
5.0
0.45
0.45
min.
( tCH, tCL)
2.0
0.9
2.0
—
1.0
—
tHP
—
0.48
0.48
1.6
0.9
0.4
0
0.25
0.4
0.75
0.2
0.2
0.40
0.40
0.9
0.9
2.3
2
40
55
72
15
15
1
10
15
tQHS
8
max.
—
0.55
0.55
—
5.0
1.1
5.0
5.0
—
0.4
—
0.5
—
—
—
1.1
0.6
—
—
0.6
1.25
—
—
—
—
—
—
—
—
120000
—
—
—
—
—
—
—
-6ELS
min.
6.0
0.45
0.45
min.
( tCH, tCL)
2.0
0.9
2.0
—
1.0
—
tHP
—
0.6
0.6
1.6
0.9
0.4
0
0.25
0.4
0.75
0.2
0.2
0.40
0.40
1.1
1.1
2.7
2
42
60
72
18
18
1
12
15
tQHS
EDD51323DBH-LS
max.
—
0.55
0.55
—
5.0
1.1
5.0
5.0
—
0.5
—
0.65
—
—
—
1.1
0.6
—
—
0.6
1.25
—
—
—
—
—
—
—
—
120000
—
—
—
—
—
—
—
Unit
ns
tCK
ns
ns
ns
ns
ns
tCK
tCK
ns
tCK
ns
ns
ns
ns
tCK
tCK
tCK
ns
ns
ns
ns
ns
ns
tCK
tCK
tCK
tCK
tCK
tCK
tCK
ns
ns
ns
ns
ns
tCK
Notes
2, 8
2, 8
5, 8
6, 8
3
4
3
3
7
3
3
3