MPC8347 FREESCALE [Freescale Semiconductor, Inc], MPC8347 Datasheet - Page 18

• Manufacturer Part Number: MPC8347
• Description: Integrated Host Processor Hardware Specifications
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

DDR and DDR2 SDRAM
Table 15
6.2
This section provides the AC electrical characteristics for the DDR and DDR2 SDRAM interface.
6.2.1
Table 16
Table 17
18
At recommended operating conditions with GV
At recommended operating conditions with GV
AC input low voltage
AC input high voltage
AC input low voltage
AC input high voltage
provides the current draw characteristics for MV
provides the input AC timing specifications for the DDR2 SDRAM when
provides the input AC timing specifications for the DDR SDRAM when GV
DDR and DDR2 SDRAM AC Electrical Characteristics
DDR and DDR2 SDRAM Input AC Timing Specifications
MPC8347EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 3
Parameter
Parameter
Table 16. DDR2 SDRAM Input AC Timing Specifications for 1.8-V Interface
Current draw for MV
1. The voltage regulator for MV
Table 17. DDR SDRAM Input AC Timing Specifications for 2.5-V Interface
Parameter / Condition
Table 15. Current Draw Characteristics for MV
REF
DD
DD
of 1.8 ± 5%.
of 2.5 ± 5%.
Symbol
Symbol
V
V
V
V
IH
IH
IL
IL
REF
must supply up to 500 μA current.
MV
MV
Symbol
I
MVREF
REF
REF
Min
Min
—
—
+ 0.25
+ 0.31
REF
Min
.
—
Max
500
MV
MV
REF
REF
Max
Max
—
—
REF
– 0.25
– 0.31
Unit
μA
Note
GV
Freescale Semiconductor
1
DD
Unit
Unit
DD
V
V
V
V
(typ)=2.5 V.
(typ)=
1.8 V.
Notes
Notes