EDE5104AGSE, EDE5108AGSE
AC Characteristics (TC = 0°C to +85°C, VDD, VDDQ = 1.8V ± 0.1V, VSS, VSSQ = 0V)
-6C, -6E
667
-5C
533
min.
-4A
400
min.
Frequency (Mbps)
Parameter
Symbol min.
max.
5
max.
5
max.
5
Unit Notes
tCK
4 (-6C)
5 (-6E)
/CAS latency
CL
4
3
Active to read or write command
delay
12 (-6C)
15 (-6E)
tRCD
tRP
tRC
15
15
15
15
ns
ns
12 (-6C)
15(-6E)
Precharge command period
Active to active/auto refresh
command time
57 (-6C)
60 (-6E)
60
55
ns
ps
ps
DQ output access time from CK, /CK tAC
DQS output access time from CK,
/CK
−450
+450
+400
−500
−450
+500
+450
−600
−500
+600
+500
tDQSCK −400
CK high-level width
tCH
tCL
0.45
0.45
0.55
0.55
0.45
0.45
0.55
0.55
0.45
0.45
0.55
0.55
tCK
tCK
CK low-level width
CK half period
min.
(tCL, tCH)
min.
(tCL, tCH)
min.
(tCL, tCH)
tHP
ps
ps
Clock cycle time
tCK
tDH
tDS
3000
175
8000
3750
225
8000
5000
275
8000
DQ and DM input hold time
DQ and DM input setup time
ps
ps
5
4
100
100
150
Control and Address input pulse
width for each input
tIPW
tDIPW
tHZ
0.6
0.6
0.6
tCK
tCK
DQ and DM input pulse width for
each input
0.35
0.35
0.35
Data-out high-impedance time from
CK,/CK
tAC max.
tAC max.
tAC max. ps
Data-out low-impedance time from
CK,/CK
tLZ
tAC min. tAC max. tAC min. tAC max. tAC min. tAC max. ps
DQS-DQ skew for DQS and
associated DQ signals
tDQSQ
tQHS
240
340
300
400
350
450
ps
ps
ps
DQ hold skew factor
tHP –
tQHS
tHP –
tQHS
tHP –
tQHS
DQ/DQS output hold time from DQS tQH
Write command to first DQS latching
tDQSS
WL − 0.25 WL + 0.25 WL − 0.25 WL + 0.25 WL − 0.25 WL + 0.25 tCK
transition
DQS input high pulse width
tDQSH
tDQSL
tDSS
0.35
0.35
0.2
0.35
0.35
0.2
0.35
0.35
0.2
tCK
tCK
tCK
tCK
DQS input low pulse width
DQS falling edge to CK setup time
DQS falling edge hold time from CK tDSH
0.2
0.2
0.2
Mode register set command cycle
time
tMRD
tWPST
2
2
2
tCK
Write postamble
Write preamble
0.4
0.6
0.4
0.6
0.4
0.6
tCK
tCK
ps
tWPRE 0.35
0.35
375
0.35
475
Address and control input hold time tIH
Address and control input setup time tIS
275
5
4
200
250
350
ps
Read preamble
tRPRE
0.9
1.1
0.9
1.1
0.9
1.1
tCK
tCK
ns
Read postamble
tRPST
tRAS
tRAP
0.4
0.6
0.4
0.6
0.4
0.6
Active to precharge command
Active to auto-precharge delay
45
70000
45
70000
40
70000
tRCD min.
tRCD min.
tRCD min.
ns
Preliminary Data Sheet E0715E20 (Ver. 2.0)
12
ELPIDA [ ELPIDA MEMORY ]
