參數(shù)資料
型號: PC8641MSH1333JB
廠商: E2V TECHNOLOGIES PLC
元件分類: 微控制器/微處理器
英文描述: MICROPROCESSOR, CBGA1023
封裝: 33 X 33 MM, 2.72 MM HEIGHT, 1 MM PITCH, ROHS COMPLIANT, CERAMIC, FC-BGA-1023
文件頁數(shù): 25/111頁
文件大?。?/td> 1660K
代理商: PC8641MSH1333JB
20
0893C–HIREL–01/10
PC8641 and PC8641D [Preliminary]
e2v semiconductors SAS 2010
Table 7-5 provides the current draw characteristics for MV
REF.
Note:
1. The voltage regulator for MV
REF must be able to supply up to 500 A current.
7.2
DDR SDRAM AC Electrical Characteristics
This section provides the AC electrical characteristics for the DDR SDRAM interface.
7.2.1
DDR SDRAM Input AC Timing Specifications
Table 7-6 provides the input AC timing specifications for the DDR SDRAM when Dn_GV
DD(typ) =1.8V..
Table 7-7 provides the input AC timing specifications for the DDR SDRAM when Dn_GV
DD(typ) = 2.5V.
Table 7-8 provides the input AC timing specifications for the DDR SDRAM interface.
Table 7-5.
Current Draw Characteristics for MV
REF
Parameter/Condition
Symbol
Min
Max
Unit
Note
Current draw for MV
REF
I
MVREF
–500
A
Table 7-6.
DDR2 SDRAM Input AC Timing Specifications for 1.8V Interface (At Recommended
Operating Conditions)
Parameter
Symbol
Min
Max
Unit
AC input low voltage
VIL
Dn_MVREF 0.25
V
AC input high voltage
V
IH
Dn_MV
REF + 0.25
V
Table 7-7.
DDR SDRAM Input AC Timing Specifications for 2.5V Interface (At Recommended Oper-
ating Conditions)
Parameter
Symbol
Min
Max
Unit
AC input low voltage
V
IL
Dn_MV
REF 0.31
V
AC input high voltage
VIH
Dn_MVREF + 0.31
V
Table 7-8.
DDR SDRAM Input AC Timing Specifications (At Recommended Operating Conditions)
Parameter
Symbol
Min
Max
Unit
Notes
Controller Skew for MDQS-MDQ/MECC
tCISKEW
ps
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