mpc8569e Freescale Semiconductor, Inc, mpc8569e Datasheet - Page 46

• Manufacturer Part Number: mpc8569e
• Description: Mpc8569e Powerquicc Iii Integrated Processor Hardware Specifications
• Manufacturer: Freescale Semiconductor, Inc

DDR2 and DDR3 SDRAM Controller
2.4.1
The following table provides the recommended operating conditions for the DDR SDRAM controller when interfacing to
DDR2 SDRAM.
The following table provides the recommended operating conditions for the DDR SDRAM controller when interfacing to
DDR3 SDRAM.
46
At recommended operating condition with GV
At recommended operating condition with GV
I/O reference voltage
Input high voltage
Input low voltage
Output high current (V
Output low current (V
I/O leakage current
Notes:
1. GV
2. MVREFn is expected to be equal to 0.5 × GV
3. V
4. The voltage regulator for MVREFn must meet the specifications stated in
5. Input capacitance load for DQ, DQS, and DQS are available in the IBIS models.
6. I
7. Refer to the IBIS model for the complete output IV curve characteristics.
8. Output leakage is measured with all outputs disabled, 0 V
I/O reference voltage
supply may or may not be from the same source.
noise on MVREFn may not exceed the MVREFn DC level by more than ±2% of GV
equal to MVREFn with a min value of MVREFn – 0.04 and a max value of MVREFn + 0.04. V
DC level of MVREFn.
OH
TT
DD
and I
is not applied directly to the device. It is the supply to which far end signal termination is made, and it is expected to be
is expected to be within 50 mV of the DRAM’s voltage supply at all times. The DRAM’s and memory controller’s voltage
OL
DDR2 and DDR3 SDRAM Interface DC Electrical Characteristics
are measured at GV
Parameter
Parameter
MPC8569E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 0
OUT
OUT
= 0.380 V)
Table 13. DDR2 SDRAM Interface DC Electrical Characteristics
Table 14. DDR3 SDRAM Interface DC Electrical Characteristics
= 1.320 V)
DD
= 1.7 V.
DD
DD
= 1.8 V
= 1.5 V
DD
1
MVREFn
1
MVREFn
Symbol
Symbol
and to track GV
V
I
I
V
I
OH
OZ
OL
IH
IL
≤
V
OUT
MVREFn + 0.125
0.49 × GV
0.49 × GV
DD
≤
GV
DC variations as measured at the receiver. Peak-to-peak
13.4
Min
Min
–50
—
—
DD
.
Table
DD
DD
16.
MVREFn – 0.125
DD
0.51 × GV
0.51 × GV
(that is, ± 36 mV).
–13.4
Max
Max
50
—
—
TT
should track variations in the
DD
DD
Freescale Semiconductor
Unit
Unit
mA
mA
μA
V
V
V
V
Notes
2, 3, 4
2, 3, 4
Note
6, 7
6, 7
5
5
8