mpc8568e Freescale Semiconductor, Inc, mpc8568e Datasheet - Page 20

• Manufacturer Part Number: mpc8568e
• Description: Mpc8568e Powerquicc Iii Processor
• Manufacturer: Freescale Semiconductor, Inc

DDR and DDR2 SDRAM
Table 15
Table 16
20
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
Input/output capacitance: DQ, DQS
Delta input/output capacitance: DQ, DQS
Note:
1. This parameter is sampled. GV
Peak-to-peak noise on MV
equal to MV
TT
V
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
OUT
Current draw for MV
1. The voltage regulator for MV
provides the DDR capacitance when
provides the current draw characteristics for MV
is expected to be within 50 mV of the DRAM GV
Table 14. DDR SDRAM DC Electrical Characteristics for GV
MPC8568E/MPC8567E PowerQUICC III™ Integrated Processor Hardware Specifications, Rev. 0
is expected to be equal to 0.5 × GV
Parameter/Condition
(peak-to-peak) = 0.2 V.
Parameter / Condition
REF
Parameter/Condition
. This rail should track variations in the DC level of MV
OUT
OUT
= 0.35 V)
= 1.95 V)
Table 15. DDR SDRAM Capacitance for GV
REF
REF
Table 16. Current Draw Characteristics for MV
may not exceed ±2% of the DC value.
DD
REF
= 2.5 V ± 0.125 V, f = 1 MHz, T
must be able to supply up to 500 μA current.
DD
Symbol
, and to track GV
I
V
I
I
OH
OZ
OL
IL
Symbol
I
GV
MVREF
DD
DD
Symbol
C
C
at all times.
(typ)=2.5 V.
≤
DIO
IO
V
OUT
DD
–16.2
–0.3
16.2
REF
Min
–10
DC variations as measured at the receiver.
≤
GV
A
Min
.
—
REF
= 25°C, V
DD
Min
—
.
6
.
DD
DD
(typ) = 2.5 V
Max
OUT
500
(typ) = 2.5 V (continued)
MV
REF
REF
= GVDD/2,
Max
Max
10
—
—
0.5
8
– 0.15
Unit
μA
Freescale Semiconductor
Unit
pF
pF
Unit
mA
mA
μA
V
Note
1
Notes
Notes
1
1
—
—
—
4