EDJ1108BABG, EDJ1116BABG
AC Characteristics [DDR3-1066, 800]
-AC, -AE, -AG
1066
-8A, -8C
800
Data rate (Mbps)
Parameter
Symbol
min.
max.
3333
min.
max.
3333
Unit
ps
Notes
6
Clock cycle time Average CL = X
Minimum clock cycle time
(DLL-off mode)
tCK(avg)
1875
2500
tCK(DLL-off)
8
8
ns
Average duty cycle high-level
tCH (avg)
tCL (avg)
0.47
0.47
0.53
0.53
0.47
0.47
0.53
0.53
tCK (avg)
tCK (avg)
Average duty cycle low-level
11.25 (AC)
13.1 (AE)
15 (AG)
11.25 (AC)
13.1 (AE)
15 (AG)
48.75 (AC)
50.6 (AE)
52.5 (AG)
12.5 (8A)
15 (8C)
Active to read or write command delay tRCD
ns
ns
ns
26
26
26
12.5 (8A)
15 (8C)
Precharge command period
tRP
tRC
Active to active/auto-refresh command
time
50 (8A)
52.5 (8C)
Active to precharge command
Active bank A to active bank B
command period
tRAS
37.5
7.5
4
9 × tREFI 37.5
9 × tREFI ns
26
tRRD
tRRD
10
4
ns
26, 27
26, 27
26, 27
26, 27
26
(x8)
nCK
Active bank A to active bank B
command period
(x16)
Four active window
(x8)
(x16)
tRRD
tRRD
10
10
4
ns
4
nCK
ns
tFAW
tFAW
tIH (base)
37.5
50
40
50
275
ns
26
Address and control input hold time
(VIH/VIL (DC) levels)
200
ps
16, 23
Address and control input setup time
(VIH/VIL (AC) levels)
Address and control input setup time tIS (base)
(VIH/VIL (AC150) levels)
DQ and DM input hold time
(VIH/VIL (DC) levels)
DQ and DM input setup time
(VIH/VIL (AC) levels)
Control and Address input pulse width
for each input
DQ and DM input pulse width for each
input
tIS (base)
125
200
ps
ps
ps
ps
ps
ps
ps
ps
ps
ps
16, 23
16, 23,
31
125 + 150
100
200 + 150
AC150
tDH (base)
150
75
17, 25
17, 25
32
tDS (base)
tIPW
25
780
900
600
tDIPW
490
32
12, 13,
14, 37
12, 13,
14, 37
12, 13,
14, 37
12, 13,
14, 37
DQ high-impedance time
tHZ (DQ)
tLZ (DQ)
tHZ (DQS)
tLZ (DQS)
300
300
300
300
150
400
400
400
400
200
DQ low-impedance time
−600
−600
−800
−800
DQS, /DQS high-impedance time
(RL + BL/2 reference)
DQS, /DQS low-impedance time
(RL − 1 reference)
DQS, /DQS -DQ skew, per group, per
access
/CAS to /CAS command delay
tDQSQ
tCCD
ps
12, 13
4
4
nCK
12, 13,
38
DQ output hold time from DQS, /DQS tQH
Data Sheet E1248E40 (Ver. 4.0)
0.38
0.38
tCK (avg)
54
ELPIDA [ ELPIDA MEMORY ]
