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PDF V827464N24S Data sheet ( Hoja de datos )

Número de pieza V827464N24S
Descripción 2.5 VOLT 64M x 72 HIGH PERFORMANCE REGISTERED ECC DDR SDRAM MODULE
Fabricantes Mosel Vitelic Corp 
Logotipo Mosel Vitelic  Corp Logotipo



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MOSEL VITELIC
V827464N24S
2.5 VOLT 64M x 72 HIGH PERFORMANCE
REGISTERED ECC DDR SDRAM MODULE
PRELIMINARY
Features
184 Pin Registered 67,108,864 x 72 bit
Organization DDR SDRAM Modules
Utilizes High Performance 64M x 4 DDR
SDRAM in TSOPII-66 Packages
Single +2.5V (± 0.2V) Power Supply
Programmable CAS Latency, Burst Length, and
Wrap Sequence (Sequential & Interleave)
Auto Refresh (CBR) and Self Refresh
All Inputs, Outputs are SSTL-2 Compatible
8192 Refresh Cycles every 64 ms
Serial Presence Detect (SPD)
DDR SDRAM Performance
Component Used -6
-7 -75 -8
tCK Clock Frequency
(max.)
166 143 133 125
(PC333) (PC266A) (PC266B) (PC200)
tAC Clock Access Time
CAS Latency = 2.5
6
7 7.5 8
Description
The V827464N24S memory module is organized
67,108,864 x 72 bits in a 184 pin memory module.
The 64M x 72 memory module uses 18 Mosel-
Vitelic 64M x 4 DDR SDRAM. The x72 modules are
ideal for use in high performance computer systems
where increased memory density and fast access
times are required.
Module Speed
A1 PC1600 (100MHz @ CL2)
B0 PC2100B (133MHz @ CL2.5)
B1 PC2100A (133MHz @ CL2)
C0 PC2700 (166MHz @ CL2.5)
Standard Module
Low Profile Module
V827464N24S Rev. 1.0 August 2002
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V827464N24S pdf
MOSEL VITELIC
Serial Presence Detect Information
Bin Sort:
A1 (PC1600 @ CL2)
B0 (PC2100B @ CL2.5)
B1 (PC2100A @ CL2)
C0 (PC2700 @ CL2.5)
V827464N24S
Function Supported
Byte #
Function described
A1 B0 B1 C0 A1
0 Defines # of Bytes written into serial memory at module manufac-
turer
128bytes
1 Total # of Bytes of SPD memory device
256bytes
2 Fundamental memory type
SDRAM DDR
3 # of row address on this assembly
13
4 # of column address on this assembly
11
5 # of module Rows on this assembly
1 Bank
6 Data width of this assembly
72 bits
7 .........Data width of this assembly
-
8 VDDQ and interface standard of this assembly
SSTL 2.5V
9 DDR SDRAM cycle time at CAS Latency =2.5
8ns 7.5ns 7ns 6ns 80h
10 DDR SDRAM Access time from clock at CL=2.5
±0.8ns ±0.75n ±0.75n ±0.70n 80h
11 DIMM configuration type(Non-parity, Parity, ECC)
Non-parity, ECC
12 Refresh rate & type
7.8us & Self refresh
13 Primary DDR SDRAM width
x4
14 Error checking DDR SDRAM data width
x4
15 Minimum clock delay for back-to-back random column
address
tCCD=1CLK
16 DDR SDRAM device attributes : Burst lengths supported
2,4,8
17 DDR SDRAM device attributes : # of banks on each DDR SDRAM
4 banks
18 DDR SDRAM device attributes : CAS Latency supported
2,2.5
19 DDR SDRAM device attributes : CS Latency
0CLK
20 DDR SDRAM device attributes : WE Latency
1CLK
21 DDR SDRAM module attributes
Registered address&
control inputs and On-card
DLL
22 DDR SDRAM device attributes : General
+/-0.2V voltage tolerance
23 DDR SDRAM cycle time at CL =2
10ns 10ns 7.5ns 7.5ns A0h
24 DDR SDRAM Access time from clock at CL =2
±0.8ns ±0.75ns ±0.75ns ±0.70ns 80h
25 DDR SDRAM cycle time at CL =1.5
----
26 DDR SDRAM Access time from clock at CL =1.5
----
27 Minimum row precharge time (=tRP)
20ns 20ns 20ns 18ns 50h
Hex value
B0 B1
80h
08h
07h
0Dh
0Bh
01h
48h
00h
04h
75h 70h
75h 75h
02h
82h
04h
04h
01h
0Eh
04h
0Ch
01h
02h
26h
00h
A0h 75h
75h 75h
00h
00h
50h 50h
C0
60h
70h
75h
70h
48h
V827464N24S Rev. 1.0 August 2002
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V827464N24S arduino
MOSEL VITELIC
V827464N24S
AC Characteristics (cont.)
(PC333)
(PC266A) (PC266B) (PC200)
Parameter
Symbol Min Max Min Max Min Max Min Max Unit Note
Write DQS Preamble Setup Time
tWPRES 0.25
-
0
- 0 - 0 - CLK
Write DQS Preamble Hold Time
tWPREH 0.4
0.6 0.25
- 0.25 - 0.25 - CLK
Write DQS Postamble Time
tWPST
2
- 0.4 0.6 0.4 0.6 0.4 0.6 CLK
Mode Register Set Delay
tMRD
10
-
2
- 2 - 2 - CLK
Power Down Exit Time
tPDEX
75
-
10
- 10 - 10 - ns
Exit Self Refresh to Non-Read Command
tXSNR
200
-
75
- 75 - 80 - ns
Exit Self Refresh to Read Command
tXSRD
200
-
200
- 200 - 200 - CLK 8
Average Periodic Refresh Interval
tREFI - 7.8 - 7.8 - 7.8 - 7.8 us
Notes: 1. This calculation accounts for tDQSQ(max), the pulse width distortion of on-chip circuit and jitter.
2. Data sampled at the rising edges of the clock : A0~A11, BA0~BA1, CKE, CS, RAS, CAS, WE.
3. For command/address input slew rate >=1.0V/ns
4. For command/address input slew rate >=0.5V/ns and <1.0V/ns
5. CK, CK slew rates are >=1.0V/ns
6. These parameters guarantee device timing, but they are not necessarily tested on each device, and they may be guaranteed
by design or tester correlation.
7. Data latched at both rising and falling edges of Data Strobes(DQS) : DQ, DM
8. Minimum of 200 cycles of stable input clocks after Self Refresh Exit command, where CKE is held high, is required to complete
Self Refresh Exit and lock the internal DLL circuit of DDR SDRAM.
Absolute Maximum Ratings
Parameter
Symbol
Ambient Temperature
Storage Temperature
Voltage on Any Pin relative to VSS
Voltage on VDD relative to VSS
Voltage on VDDQ relative to VSS
Output Short Circuit Current
Power Dissipation
Soldering Temperature • Time
TA
TSTG
VIN, VOUT
VDD
VDDQ
IOS
PD
TSOLDER
Note: Operation at above absolute maximum rating can adversely affect device reliability
Rating
0 ~ 70
-55 ~ 125
-0.5 ~ 3.6
-0.5 ~ 3.6
-0.5 ~ 3.6
50
8
260 • 10
Unit
°C
°C
V
V
V
mA
W
°C • Sec
V827464N24S Rev. 1.0 August 2002
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