参数资料
型号: W3EG64128S265D3
厂商: MICROSEMI CORP-PMG MICROELECTRONICS
元件分类: DRAM
英文描述: 128M X 64 DDR DRAM MODULE, DMA184
封装: DIMM-184
文件页数: 11/12页
文件大小: 296K
代理商: W3EG64128S265D3
White Electronic Designs
8
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
December 2006
Rev. 6
W3EG64128S-D3
-JD3
ADVANCED
DDR SDRAM COMPONENT ELECTRICAL CHARACTERISTICS AND
RECOMMENDED AC OPERATING CONDITIONS (continued)
DDR400: VCC = VCCQ = +2.6V ± 0.1V; DDR333, 266, 299: VCC = VCCQ = +2.5V ± 0.2V
AC Characteristics
403
335
262/263/265
202
Parameter
Symbol
Min
Max
Min
Max
Min
Max
Min
Max
Units
Notes
ACTIVE to READ or WRITE delay
tRCD
15
20
ns
PRECHARGE command period
tRP
15
20
ns
DQS read preamble
tRPRE
0.9
1.1
0.9
1.1
0.9
1.1
0.9
1.1
tCK
DQS read postamble
tRPST
0.4
0.6
0.4
0.6
0.4
0.6
0.4
0.6
tCK
ACTIVE bank a to ACTIVE bank b command
tRRD
10
12
15
ns
DQS write preamble
tWPRE
0.25
tCK
DQS write preamble setup time
tWPRES
0000
ns
10,11
DQS write postamble
tWPST
0.4
0.6
0.4
0.6
0.4
0.6
0.4
0.6
tCK
9
Write recovery time
tWR
15
ns
Internal WRITE to READ command delay
tWTR
2111
tCK
Data valid output window
NA
tQH-tDQSQ
ns
13
REFRESH to REFRESH command interval
tREFC
70.3
μs12
Average periodic refresh interval
tREFI
7.8
μs12
Terminating voltage delay to VCC
tVTD
0000
ns
Exit SELF REFRESH to non-READ command
tXSNR
70
75
ns
Exit SELF REFRESH to READ command
tXSRD
200
tCK
相关PDF资料
PDF描述
WE512K8300CQA 512K X 8 EEPROM 5V MODULE, 300 ns, CDIP32
WE512K8150CIA 512K X 8 EEPROM 5V MODULE, 150 ns, CDIP32
WE512K8-300CM 512K X 8 EEPROM 5V MODULE, 300 ns, CDIP32
WE512K8200CMA 512K X 8 EEPROM 5V MODULE, 200 ns, CDIP32
WF4M32-120G4TC5A 4M X 32 FLASH 5V PROM MODULE, 120 ns, CQFP68
相关代理商/技术参数
参数描述
W3EG64128S265JD3 制造商:WEDC 制造商全称:White Electronic Designs Corporation 功能描述:1GB - 2x64Mx64 DDR SDRAM UNBUFFERED
W3EG64128S335AD4 制造商:WEDC 制造商全称:White Electronic Designs Corporation 功能描述:1GB - 2x64Mx64 DDR SDRAM UNBUFFERED w/PLL
W3EG64128S335BD4 制造商:WEDC 制造商全称:White Electronic Designs Corporation 功能描述:1GB - 2x64Mx64 DDR SDRAM UNBUFFERED w/PLL
W3EG64128S335D3 制造商:WEDC 制造商全称:White Electronic Designs Corporation 功能描述:1GB - 2x64Mx64 DDR SDRAM UNBUFFERED
W3EG64128S335JD3 制造商:WEDC 制造商全称:White Electronic Designs Corporation 功能描述:1GB - 2x64Mx64 DDR SDRAM UNBUFFERED