参数资料
型号: MT46V4M32
厂商: Micron Technology, Inc.
英文描述: DOUBLE DATA RATE DDR SDRAM
中文描述: 双倍数据速率的DDR SDRAM内存
文件页数: 52/66页
文件大小: 1921K
代理商: MT46V4M32
52
128Mb: x32 DDR SDRAM
4M32DDR_B.p65 – Rev. B, Pub. 7/02
Micron Technology, Inc., reserves the right to change products or specifications without notice.
2002, Micron Technology, Inc.
128Mb: x32
DDR SDRAM
ADVANCE
Figure 28a
Data Output Timing –
t
DQSQ,
t
QH and Data Valid Window for TQFP Package
DQ (Last data valid)
DQ
6
DQ
6
DQ
6
DQ
6
DQ
6
DQ
6
DQS
1
DQ (Last data valid)
6
DQ (First data no longer valid)
6
DQ (First data no longer valid)
6
All DQs and DQS, collectively
5
NOTE:
1. DQs transitioning after DQS transition define tDQSQ window. DQS transitions at T2 and at T2n are an “early DQS,”
at T3 is a “nominal DQS,” and at T3n is a “late DQS.”
2. tDQSQ is derived at each DQS clock edge and is not cumulative over time and begins with DQS transition and
ends with the last valid transition of DQs .
3. tQH is derived from tHP: tQH = tHP
4. tHP is the lesser of tCL or tCH clock transition collectively when a bank is active.
5. The data valid window is derived for each DQS transitions and is defined as tQH minus tDQSQ.
6. DQ0, DQ1, DQ2, DQ3, DQ4, DQ5, DQ6, DQ7, DQ8, DQ9, DQ10, DQ11, DQ13, DQ14, DQ15, DQ16, DQ17, DQ18, DQ19
DQ20, DQ21, DQ22, DQ23, DQ24, DQ25, DQ26, DQ27, DQ28, DQ29, DQ30, or DQ31.
Earliest signal transition
Latest signal transition
T2
T2
T2
T2n
T2n
T2n
T3
T3
T3
T3n
T3n
T3n
CK
CK#
T1
T2
T3
T4
T2n
T3n
tQH
3
tHP
4
tHP
4
tHP
4
tQH
3
tQH
3
tHP
4
tHP
4
tHP
4
tQH
3
tDQSQ
2
tDQSQ
2
tDQSQ
2
tDQSQ
2
Data
Valid
window
Data
Valid
window
Data
Valid
window
Data
Valid
window
相关PDF资料
PDF描述
MT46V4M32LG I.MX31 LITE KIT
MT46V64M4 16 Meg x 4 x 4 banks DDR SDRAM(16M x 4 x 4组,双数据速率同步动态RAM)
MT46V64M8 16 Meg x 8 x 4 banks DDR SDRAM(16M x 8 x 4组,双数据速率同步动态RAM)
MT48LC16M8A1TG SYNCHRONOUS DRAM
MT48LC32M4A1 ECONOLINE: RSZ/P - 1kVDC
相关代理商/技术参数
参数描述
MT46V4M32LG 制造商:MICRON 制造商全称:Micron Technology 功能描述:DOUBLE DATA RATE DDR SDRAM
MT46V64M16 制造商:MICRON 制造商全称:Micron Technology 功能描述:DOUBLE DATA RATE (DDR) SDRAM