MPC8544VTALF Freescale Semiconductor, MPC8544VTALF Datasheet - Page 713

• Manufacturer Part Number: MPC8544VTALF
• Description: MPU POWERQUICC III 783-PBGA
• Manufacturer: Freescale Semiconductor

Specifications of MPC8544VTALF

• Processor Type: MPC85xx PowerQUICC III 32-Bit
• Speed: 667MHz
• Voltage: 1V
• Mounting Type: Surface Mount
• Package / Case: 783-FCPBGA
• Processor Series: MPC85xx
• Core: e500
• Data Bus Width: 32 bit
• Maximum Clock Frequency: 667 MHz
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Data Ram Size: 32 KB
• I/o Voltage: 1.8 V, 3.3 V
• Interface Type: I2C, HSSI, DUART
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

14.5.4.3.8
To allow for very high speeds on the memory bus, the capacitive loading on the local bus must be taken
into consideration as shown in
To implement a system using the hierarchy described earlier for 2 synchronous memory banks, 1 address
latch, and 1 buffer loading the multiplexed address/data bus sees a loading of 4 loads of about 6.5 pF
maximum. For a nominal load, 30 pF can be used.
Freescale Semiconductor
t
EXTERNAL CK
CKE
MPC8544E PowerQUICC III Integrated Host Processor Family Reference Manual, Rev. 1
RE
CE
An
W
S
SDRAM Timing
Note:Capacitance values compiled from worst case numbers from
RAS, CAS, WE, CS, CKE, DQM
various data sheets from Samsung and Micron
All banks idle
Figure 14-76. SDRAM Self-Refresh Mode Timing
Table
Self-refresh entry
DQ
Address
Signal
CLK
0
Table 14-42. SDRAM Capacitance
–DQ
14-42.
31
Self-refresh exit
Stable clock
Min
2.0
2.0
2.0
3.5
Max
4.0
5.0
5.0
6.5
Supplier-specific
minimum time
New command
can occur here
Unit
NOP
pf
pf
pf
pf
Local Bus Controller
14-93