mpc8308 Freescale Semiconductor, Inc, mpc8308 Datasheet - Page 10

• Manufacturer Part Number: mpc8308
• Description: Mpc8308 Powerquicc Ii Pro Processor Hardware Specification
• Manufacturer: Freescale Semiconductor, Inc

DDR2 SDRAM
6
This section describes the DC and AC electrical specifications for the DDR2 SDRAM interface. Note that
DDR2 SDRAM is GV
6.1
Table 13
GV
Table 14
10
Input/output capacitance: DQ, DQS, DQS
Delta input/output capacitance: DQ, DQS, DQS
Note:
1. This parameter is sampled. GV
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
DD
Peak-to-peak noise on MV
equal to MV
TT
(typ) = 1.8 V
DD
REF
DDR2 SDRAM
is not applied directly to the device. It is the supply to which far end signal termination is made and is expected to be
is expected to be within 50 mV of the DRAM GV
provides the recommended operating conditions for the DDR2 SDRAM component(s) when
provides the DDR2 capacitance when
DDR2 SDRAM DC Electrical Characteristics
is expected to be equal to 0.5 × GV
Parameter/Condition
REF
Parameter/Condition
Table 13. DDR2 SDRAM DC Electrical Characteristics for GV
. This rail should track variations in the DC level of MV
.
OUT
OUT
MPC8308 PowerQUICC II Pro Processor Hardware Specification, Rev. 1
DD
= 0.280 V)
= 1.420 V)
Table 14. DDR2 SDRAM Capacitance for GV
(typ) = 1.8 V.
REF
DD
may not exceed ±2% of the DC value.
= 1.8 V ± 0.090 V, f = 1 MHz, T
DD
, and to track GV
Symbol
MV
GV
V
V
I
V
I
I
OH
OZ
OL
TT
REF
IH
IL
DD
GV
DD
Symbol
DD
C
at all times.
≤
C
DIO
(typ) =
IO
V
MV
MV
OUT
0.49 × GV
DD
A
REF
REF
–13.4
= 25°C, V
DC variations as measured at the receiver.
–0.3
–9.9
13.4
≤
Min
1.7
1.8 V.
+ 0.125
GV
– 0.04
REF
DD
DD
.
Min
.
—
6
OUT
DD
(typ) = 1.8 V
= GV
MV
MV
0.51 × GV
GV
REF
REF
DD
DD
Max
DD
1.9
9.9
—
—
/2, V
– 0.125
+ 0.04
+ 0.3
(typ) = 1.8 V
Max
0.5
8
DD
OUT
(peak-to-peak) = 0.2 V.
Freescale Semiconductor
Unit
mA
mA
μA
Unit
V
V
V
V
V
pF
pF
Notes
Notes
—
—
—
—
1
2
3
4
1
1