mpc8349ea Freescale Semiconductor, Inc, mpc8349ea Datasheet - Page 16

• Manufacturer Part Number: mpc8349ea
• Description: Mpc8349ea Powerquicc
• Manufacturer: Freescale Semiconductor, Inc

DDR and DDR2 SDRAM
Table 14
Table 15
6.2
This section provides the AC electrical characteristics for the DDR and DDR2 SDRAM interface.
6.2.1
Table 16
16
At recommended operating conditions with GV
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
Current draw for MV
Note:
1. The voltage regulator for MV
AC input low voltage
AC input high voltage
Input/output capacitance: DQ, DQS
Delta input/output capacitance: DQ, DQS
Note:
1. This parameter is sampled. GV
noise on MV
equal to MV
TT
DD
REF
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
is expected to be equal to 0.5 × GV
provides the DDR capacitance when
provides the current draw characteristics for MV
provides the input AC timing specifications for the DDR2 SDRAM when GV
DDR and DDR2 SDRAM AC Electrical Characteristics
MPC8349EA PowerQUICC™ II Pro Integrated Host Processor Hardware Specifications, Rev. 10
DDR and DDR2 SDRAM Input AC Timing Specifications
REF
REF
Parameter
. This rail should track variations in the DC level of MV
Table 16. DDR2 SDRAM Input AC Timing Specifications for 1.8-V Interface
Parameter/Condition
Table 13. DDR SDRAM DC Electrical Characteristics for GV
may not exceed ±2% of the DC value.
REF
Parameter/Condition
OUT
OUT
= 0.35 V)
= 1.95 V)
Table 14. DDR SDRAM Capacitance for GV
REF
Table 15. Current Draw Characteristics for MV
DD
must supply up to 500 μA current.
= 2.5 V ± 0.125 V, f = 1 MHz, T
DD
of 1.8 ± 5%.
DD
, and to track GV
Symbol
I
I
I
V
V
V
OH
OZ
OL
IH
IL
IL
GV
DD
DD
at all times.
≤
(typ) = 2.5 V.
V
Symbol
OUT
DD
MV
C
C
DIO
IO
Symbol
DC variations as measured at the receiver. Peak-to-peak
I
REF
≤
A
–15.2
MVREF
REF
–0.3
–9.9
15.2
Min
= 25°C, V
GV
—
REF
+ 0.25
.
DD
.
.
DD
OUT
Min
—
6
(typ) = 2.5 V
Min
—
= GV
MV
MV
REF
DD
REF
DD
REF
–9.9
Max
—
—
(typ) = 2.5 V
/2, V
—
– 0.18
– 0.25
Max
0.5
Max
500
8
OUT
Freescale Semiconductor
(peak-to-peak) = 0.2 V.
DD
Unit
mA
mA
Unit
Unit
μA
(typ) = 1.8 V.
pF
pF
μA
V
V
V
Notes
Notes
Note
—
—
—
—
—
1
1
4
1