参数资料
型号: MT42L256M32D4KP-3 IT:A
厂商: Micron Technology Inc
文件页数: 42/164页
文件大小: 0K
描述: IC LPDDR2 SDRAM 8GBIT 168FBGA
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(356M x 32)
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: 168-VFBGA
供应商设备封装: 168-FBGA(12x12)
包装: 散装
2Gb: x16, x32 Mobile LPDDR2 SDRAM S4
Power-Off
Figure 26: Voltage Ramp and Initialization Sequence
Ta
Tb
Tc
Td
Te
Tf
Tg
tINIT2
CK/CK#
tINIT0
Supplies
CKE
tINIT1
tINIT3
tISCKE
tINIT4
tINIT5
tZQINIT
CA
RESET
MRR
MRW
ZQ _ CAL
Valid
R TT
DQ
Note:
1. High-Z on the CA bus indicates valid NOP.
Table 8: Initialization Timing Parameters
Value
Parameter
t INIT0
t INIT1
t INIT2
t INIT3
t INIT4
t INIT5
t ZQINIT
t CKb
Min
100
5
200
1
1
18
Max
20
10
100
Unit
ms
ns
t CK
μ s
μ s
μ s
μ s
ns
Comment
Maximum voltage ramp time
Minimum CKE LOW time after completion of voltage ramp
Minimum stable clock before first CKE HIGH
Minimum idle time after first CKE assertion
Minimum idle time after RESET command
Maximum duration of device auto initialization
ZQ initial calibration (S4 devices only)
Clock cycle time during boot
Initialization After RESET (Without Voltage Ramp)
If the RESET command is issued before or after the power-up initialization sequence,
the reinitialization procedure must begin at Td.
Power-Off
While powering off, CKE must be held LOW ( ≤ 0.2 × V DDCA ); all other inputs must be be-
tween V ILmin and V IHmax . The device outputs remain at High-Z while CKE is held LOW.
DQ, DM, DQS, and DQS# voltage levels must be between V SSQ and V DDQ during the
power-off sequence to avoid latchup. CK, CK#, CS#, and CA input levels must be be-
tween V SSCA and V DDCA during the power-off sequence to avoid latchup.
PDF: 09005aef83f3f2eb
2gb_mobile_lpddr2_s4_g69a.pdf – Rev. N 3/12 EN
42
Micron Technology, Inc. reserves the right to change products or specifications without notice.
2010 Micron Technology, Inc. All rights reserved.
相关PDF资料
PDF描述
MT45W1MW16BDGB-708 AT IC PSRAM 16MBIT 104MHZ 54VFBGA
MT48H32M16LFB4-75B IT:C IC SDRAM 512MB 54VFBGA
MT48H8M16LFB4-75 IT:K TR IC SDRAM 128MBIT 133MHZ 54VFBGA
MTC100-JA2-P34 CONTACT INSERT PIN
MX841BE IC CONVERTER WHITE LED 8-SOIC
相关代理商/技术参数
参数描述
MT42L256M32D4KP-MS 制造商:Micron Technology Inc 功能描述:256MX32 LPDDR2 PLASTIC IND TEMP GREEN WFBGA 1.2V - Bulk