mpc8347ecvvalf Freescale Semiconductor, Inc, mpc8347ecvvalf Datasheet - Page 16

• Manufacturer Part Number: mpc8347ecvvalf
• Description: Mpc8347e Powerquicc Ii Pro Family
• Manufacturer: Freescale Semiconductor, Inc

DDR SDRAM
Table 12
6.2
This section provides the AC electrical characteristics for the DDR SDRAM interface.
6.2.1
Table 13
16
At recommended operating conditions with GV
Input/output capacitance: DQ, DQS
Delta input/output capacitance: DQ, DQS
Note:
1. This parameter is sampled. GV
AC input low voltage
AC input high voltage
MDQS—MDQ/MECC input skew per byte
Note:
1. Maximum possible skew between a data strobe (MDQS[n]) and any corresponding bit of data (MDQ[8n + {0...7}] if
0 <= n <= 7) or ECC (MECC[{0...7}] if n = 8).
provides the DDR capacitance.
provides the input AC timing specifications for the DDR SDRAM interface.
DDR SDRAM AC Electrical Characteristics
MPC8347E PowerQUICC™ II Pro Integrated Host Processor Hardware Specifications, Rev. 10
DDR SDRAM Input AC Timing Specifications
Parameter
Parameter/Condition
Table 13. DDR SDRAM Input AC Timing Specifications
DD
= 2.5 V ± 0.125 V, f = 1 MHz, T
333 MHz
266 MHz
DD
Table 12. DDR SDRAM Capacitance
of 2.5 V ± 5%.
Symbol
t
DISKEW
V
V
IH
IL
Symbol
C
C
DIO
MV
A
IO
= 25°C, V
REF
Min
—
—
+ 0.31
OUT
Min
—
6
= GV
MV
GV
DD
REF
/2, V
1125
DD
Max
750
Max
– 0.31
+ 0.3
0.5
OUT
8
(peak-to-peak) = 0.2 V.
Freescale Semiconductor
Unit
Unit
pF
pF
ps
V
V
Notes
Notes
1
1
1