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參數(shù)資料
| 型號： | WEDPN4M64V-125BM |
| 廠商： | WHITE ELECTRONIC DESIGNS CORP |
| 元件分類： | DRAM |
| 英文描述： | 4M X 64 SYNCHRONOUS DRAM, 6 ns, PBGA219 |
| 封裝： | 21 X 21 MM, PLASTIC, BGA-219 |
| 文件頁數(shù)： | 2/12頁 |
| 文件大小： | 385K |
| 代理商： | WEDPN4M64V-125BM |
10
White Electronic Designs Corporation (602) 437-1520 www.whiteedc.com
White Electronic Designs
WEDPN4M64V-XBX
January 2005
Rev. 8
White Electronic Designs Corp. reserves the right to change products or specications without notice.
ELECTRICAL CHARACTERISTICS AND RECOMMENDED AC OPERATING CHARACTERISTICS
(NOTES 5, 6, 8, 9, 11)
Parameter
Symbol
-100
-125
-133
Unit
Min
Max
Min
Max
Min
Max
Access time from CK (pos. edge)
CL = 3
tAC
7
6
5.5
ns
CL = 2
tAC
766
ns
Address hold time
tAH
1
0.8
ns
Address setup time
tAS
2
1.5
ns
CK high-level width
tCH
3
2.5
ns
CK low-level width
tCL
3
2.5
ns
Clock cycle time (22)
CL = 3
tCK
10
8
7.5
ns
CL = 2
tCK
13
10
CKE hold time
tCKH
1
0.8
ns
CKE setup time
tCKS
2
1.5
ns
CS#, RAS#, CAS#, WE#, DQM hold time
tCMH
1
0.8
ns
CS#, RAS#, CAS#, WE#, DQM setup time
tCMS
2
1.5
ns
Data-in hold time
tDH
1
0.8
ns
Data-in setup time
tDS
2
1.5
ns
Data-out high-impedance time
CL = 3 (10)
tHZ
7
6
5.5
ns
CL = 2 (10)
tHZ
7
6
ns
Data-out low-impedance time
tLZ
1
ns
Data-out hold time (load)
tOH
3
ns
Data-out hold time (no load) (26)
tOHN
1.8
ns
ACTIVE to PRECHARGE command
tRAS
50
120,000
50
120,000
50
120,000
ns
ACTIVE to ACTIVE command period
tRC
70
68
ns
ACTIVE to READ or WRITE delay
tRCD
20
ns
Refresh period (4,096 rows) – Commercial, Industrial
tREF
64
ms
Refresh period (4,096 rows) – Military
tREF
16
ms
AUTO REFRESH period
tRFC
70
ns
PRECHARGE command period
tRP
20
ns
ACTIVE bank A to ACTIVE bank B command
tRRD
20
ns
Transition time (7)
tT
0.3
1.2
0.3
1.2
0.3
1.2
ns
WRITE recovery time
(23)
tWR
1 CK + 7ns
1 CK + 7.5
—
(24)
15
ns
Exit SELF REFRESH to ACTIVE command
tXSR
80
75
ns
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| WEDPN4M64V-133BC | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:4Mx64 Synchronous DRAM |
| WEDPN4M64V-133BI | 制造商:WEDC 制造商全稱:White Electronic Designs Corporation 功能描述:4Mx64 Synchronous DRAM |
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| WEDPN4M64V-XBX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SDRAM MCP |
| WEDPN4M72LV-100B2I | 制造商:Microsemi Corporation 功能描述:UCKT,SDRAM 4MX72,219BGA,4M72V - Bulk 制造商:White Electronic Designs 功能描述: |
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