參數(shù)資料
型號(hào)： NT512T64U88B0BY-3C
廠商： NANYA TECHNOLOGY CORP
元件分類(lèi)： DRAM
英文描述： 64M X 64 DDR DRAM MODULE, 0.5 ns, DMA240
封裝： ROHS COMPLIANT, DIMM-240
文件頁(yè)數(shù)： 13/24頁(yè)
文件大?。?/td> 473K
代理商： NT512T64U88B0BY-3C
NT256T64UH4B0FY / NT512T64U88B0BY / NT1GT64U8HB0BY
256MB: 32M x 64 / 512MB: 64M x 64 / 1GB: 128M x 64
Unbuffered DDR2 SDRAM DIMM
REV 1.2
20
03/2007
NANYA TECHNOLOGY CORP.
NANYA TECHNOLOGY CORP. reserves the right to change Products and Specifications without notice.
AC Timing Specifications for DDR2 SDRAM Devices Used on Module
(TCASE = 0 °C ~ 85 °C; VDDQ = 1.8V ± 0.1V; VDD = 1.8V ± 0.1V, See AC Characteristics) (Part 2 of 2)
PC2-4200
PC2-5300
PC2-6400
Symbol
Parameter
Min.
Max.
Min.
Max.
Min.
Max.
Unit
tWR
Write recovery time without Auto-Precharge
15
-
15
-
15
-
ns
WR
Write recovery time with Auto-Precharge
tWR/tCK
-
tWR/tCK
-
tWR/tCK
-
tCK
tDAL
Auto precharge write recovery + precharge time
WR+tRP
-
WR+tRP
-
WR+tRP
-
tCK
tWTR
Internal write to read command delay
7.5
-
7.5
-
7.5
ns
tRTP
Internal read to precharge command delay
7.5
ns
tXSNR
Exit self refresh to a Non-read command
tRFC+10
-
tRFC+10
ns
tXSRD
Exit self refresh to a Read command
200
-
200
tCK
tXP
Exit precharge power down to any Non- read
command
2
-
2
-
2
-
tCK
tXARD
Exit active power down to read command
2
-
2
-
2
-
tCK
tXARDS
Exit active power down to read command
6-AL
7-AL
8-AL
tCK
tCKE
CKE minimum pulse width
3
tCK
ODT
tAOND
ODT turn-on delay
2
tCK
tAON
ODT turn-on
tAC (min) tAC (max)
+1
tAC (min) tAC (max)
+0.7
tAC (min) tAC (max)
+0.7
ns
tAONPD
ODT turn-on (Power down mode)
tAC (min)
+2
2tCK +
tAC(max)
+1
tAC (min)
+2
2tCK +
tAC(max)
+1
tAC (min)
+2
2tCK +
tAC(max)
+1
ns
tAOFD
ODT turn-off delay
2.5
tCK
tAOF
ODT turn-off
tAC(min) t
AC(max)
+0.6
tAC(min) t
AC(max)
+0.6
tAC(min) t
AC(max)
+0.6
ns
tAOFPD
ODT turn-off (Power down mode)
tAC
(min)
+2
2.5tCK +
tAC(max)
+1
tAC
(min)
+2
2.5tCK +
tAC(max)
+1
tAC
(min)
+2
2.5tCK +
tAC(max)
+1
ns
tANPD
ODT to power down entry latency
3
tCK
tAXPD
ODT power down exit latency
8
tCK
Speed Grade Definition
-37B
-3C
-25D
-25C
Symbol
Parameter
Min
Max
Min
Max
Min
Max
Min
Max
Unit
tRAS
Row Active Time
45
70,000
45
70,000
45
70,000
45
70,000
ns
tRC
Row Cycle Time
60
-
60
-
60
-
57.5
-
ns
tRCD
RAS to CAS delay
15
-
15
-
15
-
12.5
-
ns
tRP
Row Precharge Time
15
-
15
-
15
-
12.5
-
ns
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