参数资料
型号: MT42L128M64D4LD-3 IT:A
厂商: Micron Technology Inc
文件页数: 145/164页
文件大小: 0K
描述: IC LPDDR2 SDRAM 8GBIT 220FBGA
标准包装: 1,000
格式 - 存储器: RAM
存储器类型: 移动 LPDDR2 SDRAM
存储容量: 8G(128M x 64)
速度: 333MHz
接口: 并联
电源电压: 1.14 V ~ 1.3 V
工作温度: -25°C ~ 85°C
封装/外壳: 220-VFBGA
供应商设备封装: 220-FBGA(14x14)
包装: 散装
2Gb: x16, x32 Mobile LPDDR2 SDRAM S4
AC Timing
Table 86: AC Timing (Continued)
Notes 1–2 apply to all parameters and conditions. AC timing parameters must satisfy the t CK minimum conditions (in mul-
tiples of t CK) as well as the timing specifications when values for both are indicated.
Min/M t CK
Data Rate
Parameter
Symbol
ax
Min
1066
933
800
667
533
400
333
Unit Notes
Command Address Input Parameters 3
Address and control input set-
t IS
MIN
220
250
290
370
460
600
740
ps
11
up time
Address and control input hold
t IH
MIN
220
250
290
370
460
600
740
ps
11
time
Address and control input
t IPW
MIN
0.40
0.40
0.40
0.40
0.40
0.40
0.40
t CK(a
pulse width
Boot Parameters (10 MHz–55 MHz) 12, 13, 14
vg)
Clock cycle time
t CKb
MAX
100
100
100
100
100
100
100
ns
MIN
18
18
18
18
18
18
18
CKE input setup time
CKE input hold time
t ISCKEb
t IHCKEb
MIN
MIN
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
2.5
ns
ns
Address and control input set-
t ISb
MIN
1150
1150 1150 1150 1150 1150 1150
ps
up time
Address and control input hold
t IHb
MIN
1150
1150 1150 1150 1150 1150 1150
ps
time
DQS output data access time
from CK/CK#
Data strobe edge to output da-
t DQSCKb
t DQSQb
MIN
MAX
MAX
2.0
10.0
1.2
2.0
10.0
1.2
2.0
10.0
1.2
2.0
10.0
1.2
2.0
10.0
1.2
2.0
10.0
1.2
2.0
10.0
1.2
ns
ns
ta edge
Data hold skew factor
t QHSb
MAX
1.2
1.2
1.2
1.2
1.2
1.2
1.2
ns
Mode Register Parameters
MODE REGISTER WRITE
t MRW
MIN
3
3
3
3
3
3
3
3
t CK(a
command period
vg)
MODE REGISTER READ
t MRR
MIN
2
2
2
2
2
2
2
2
t CK(a
command period
vg)
Core
Parameters 15
READ latency
RL
MIN
3
8
7
6
5
4
3
3
t CK(a
vg)
WRITE latency
WL
MIN
1
4
4
3
2
2
1
1
t CK(a
vg)
ACTIVATE-to-ACTIVATE
t RC
MIN
t RAS
+
t RPab
(with all-bank precharge),
ns
17
command period
t RAS
+ t RPpb (with per-bank precharge)
CKE minimum pulse width dur-
t CKESR
MIN
3
15
15
15
15
15
15
15
ns
ing SELF REFRESH (low pulse
width during SELF REFRESH)
SELF REFRESH exit to next valid
t XSR
MIN
2
t RFCab
+ 10
ns
command delay
PDF: 09005aef83f3f2eb
2gb_mobile_lpddr2_s4_g69a.pdf – Rev. N 3/12 EN
145
Micron Technology, Inc. reserves the right to change products or specifications without notice.
2010 Micron Technology, Inc. All rights reserved.
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