V436616R24VBTG-75PC Ver la hoja de datos (PDF) - Mosel Vitelic, Corp
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V436616R24VBTG-75PC Datasheet PDF : 12 Pages
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MOSEL VITELIC
V436616R24V
Serial Presence Detect Information
A serial presence detect storage device -
E2PROM - is assembled onto the module. Informa-
tion about the module configuration, speed, etc. is
SPD-Table:
written into the E2PROM device during module pro-
duction using a serial presence detect protocol (I2C
synchronous 2-wire bus)
Byte Number Function Described
0
Number of SPD bytes
1
Total bytes in Serial PD
2
Memory Type
3
Number of Row Addresses (without BS bits)
4
Number of Column Addresses (for x16 SDRAM)
5
Number of DIMM Banks
6
Module Data Width
7
Module Data Width (continued)
8
Module Interface Levels
9
SDRAM Cycle Time at CL=3
10
SDRAM Access Time from Clock at CL=3
11
Dimm Config (Error Det/Corr.)
12
Refresh Rate/Type
13
SDRAM width, Primary
14
Error Checking SDRAM Data Width
15
Minimum Clock Delay from Back to Back Random
Column Address
16
Burst Length Supported
17
Number of SDRAM Banks
18
Supported CAS Latencies
19
CS Latencies
20
WE Latencies
21
SDRAM DIMM Module Attributes
22
SDRAM Device Attributes: General
23
Minimum Clock Cycle Time at CAS Latency = 2
24
Maximum Data Access Time from Clock for CL = 2
25
Minimum Clock Cycle Time at CL = 1
26
Maximum Data Access Time from Clock at CL = 1
27
Minimum Row Precharge Time
28
Minimum Row Active to Row Active Delay tRRD
29
Minimum RAS to CAS Delay tRCD
30
Minimum RAS Pulse Width tRAS
SPD Entry Value
128
256
SDRAM
13
9
1
64
0
LVTTL
7.5 ns
5.4 ns
none
Self-Refresh, 7.8µs
x16
n/a / x16
tccd = 1 CLK
1, 2, 4, 8
4
CL =2, 3
CS Latency = 0
WL = 0
Non Buffered/Non Reg.
Vcc tol ± 10%
7.5 ns
5.4 ns
Not Supported
Not Supported
15 ns
14ns
15 ns
42 ns
Hex Value
16Mx64
80
08
04
0D
09
01
40
00
01
75
54
00
82
10
00
01
0F
04
06
01
01
00
0E
75
54
00
00
0F
0E
0F
2A
V436616R24V Rev. 1.1 January 2002
4
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