參數(shù)資料
型號(hào): M34C02-LMB6P
廠商: 意法半導(dǎo)體
英文描述: 2 Kbit Serial IC Bus EEPROM for DIMM serial presence detect
中文描述: 2千位串行IC總線的EEPROM內(nèi)存串行存在檢測(cè)
文件頁數(shù): 20/31頁
文件大?。?/td> 162K
代理商: M34C02-LMB6P
Initial delivery state
M34C02-W, M34C02-L, M34C02-R
20/31
5
Initial delivery state
The device is delivered with all bits in the memory array set to 1 (each Byte contains FFh).
Figure 11.
Serial presence detect block diagram
1.
2.
3.
E0, E1 and E2 are wired at each DIMM socket in a binary sequence for a maximum of 8 devices.
Common clock and common data are shared across all the devices.
Pull-up resistors are required on all SDA and SCL bus lines (typically 4.7 k
) because these lines are open
drain when used as outputs.
R = 4.7k
AI01937
DIMM Position 7
SDA
SCL
E0
E1
E2
VCC
DIMM Position 6
SDA
SCL
E0
E1
E2
DIMM Position 5
SDA
SCL
E0
E1
E2
DIMM Position 4
SDA
SCL
E0
E1
E2
DIMM Position 3
SDA
SCL
E0
E1
E2
DIMM Position 2
SDA
SCL
E0
E1
E2
VCC
DIMM Position 1
SDA
SCL
E0
E1
E2
DIMM Position 0
SDA
SCL
E0
E1
E2
VSS
VSS
VSS
VCC
VSS
VSS
VCC
VCC
VSS
VCC
VCC
VSS
VSS
VCC
SCL line
SDA line
From the motherboard
I
2
C master controller
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