MPC8347 FREESCALE [Freescale Semiconductor, Inc], MPC8347 Datasheet - Page 16

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

DDR and DDR2 SDRAM
6
This section describes the DC and AC electrical specifications for the DDR SDRAM interface of the
MPC8347EA. Note that DDR SDRAM is GV
The AC electrical specifications are the same for DDR and DRR2 SDRAM.
6.1
Table 11
MPC8347EA when GV
16
I/O supply voltage
I/O reference voltage
I/O termination voltage
Input high voltage
Input low voltage
Output leakage current
Output high current (V
Output low current (V
Notes:
1. GV
2. MV
3. V
4. Output leakage is measured with all outputs disabled, 0 V
on MV
MV
TT
DD
REF
REF
is not applied directly to the device. It is the supply to which far end signal termination is made and is expected to equal
DDR and DDR2 SDRAM
The information in this document is accurate for revision 3.0 silicon and later. For
information on revision 1.1 silicon and earlier versions see the MPC8347E
PowerQUICC™ II Pro Integrated Host Processor Hardware Specifications. See
Section 23.1, “Part Numbers Fully Addressed by this
determination.
is expected to be within 50 mV of the DRAM GV
REF
. This rail should track variations in the DC level of MV
is expected to equal 0.5 × GV
provides the recommended operating conditions for the DDR2 SDRAM component(s) of the
DDR and DDR2 SDRAM DC Electrical Characteristics
Parameter/Condition
cannot exceed ±2% of the DC value.
MPC8347EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 3
Table 11. DDR2 SDRAM DC Electrical Characteristics for GV
OUT
OUT
= 0.280 V)
= 1.420 V)
DD
(typ) = 1.8 V
DD
, and to track GV
.
Symbol
MV
GV
V
I
V
I
V
I
OZ
OH
OL
TT
REF
IH
IL
DD
DD
DD
(typ) = 2.5 V and DDR2 SDRAM is GV
NOTE
DD
at all times.
≤
DC variations as measured at the receiver. Peak-to-peak noise
V
MV
MV
REF
0.49 × GV
OUT
REF
.
REF
–13.4
1.71
–0.3
–9.9
13.4
Min
≤
+ 0.125
GV
– 0.04
Document,” for silicon revision level
DD
DD
.
MV
MV
0.51 × GV
GV
REF
REF
DD
Max
1.89
DD
9.9
—
—
– 0.125
+ 0.04
+ 0.3
(typ) = 1.8 V
DD
Freescale Semiconductor
DD
Unit
mA
mA
μA
V
V
V
V
V
(typ) = 1.8 V.
Notes
1
2
3
4