MPC8255ACZUMHBB Freescale Semiconductor, MPC8255ACZUMHBB Datasheet - Page 15

• Manufacturer Part Number: MPC8255ACZUMHBB
• Description: IC MPU POWERQUICC II 480-TBGA
• Manufacturer: Freescale Semiconductor

Specifications of MPC8255ACZUMHBB

• Processor Type: MPC82xx PowerQUICC II 32-bit
• Speed: 266MHz
• Voltage: 2V
• Mounting Type: Surface Mount
• Package / Case: 480-TBGA
• Family Name: MPC82XX
• Device Core: PowerQUICC II
• Device Core Size: 32b
• Frequency (max): 266MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 2V
• Operating Supply Voltage (max): 2.1V
• Operating Supply Voltage (min): 1.9V
• Operating Temp Range: -40C to 105C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 480
• Package Type: TBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -
• Lead Free Status / Rohs Status: Not Compliant

Figure 9 shows signal behavior for all parity modes (including ECC, RMW parity, and standard parity).
Figure 10 shows signal behavior in MEMC mode.
DATA bus, ECC, and PARITY mode input signals
Memory controller signals
Generally, all MPC8255 bus and system output signals are driven from the
rising edge of the input clock (CLKin). Memory controller signals,
however, trigger on four points within a CLKin cycle. Each cycle is
divided by four internal ticks: T1, T2, T3, and T4. T1 always occurs at the
rising edge, and T3 at the falling edge, of CLKin. However, the spacing of
T2 and T4 depends on the PLL clock ratio selected, as shown in Table 11.
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
CLKin
V_CLK
Freescale Semiconductor, Inc.
For More Information On This Product,
MPC8255 Hardware Specifications
DP mode output signal
Figure 10. MEMC Mode Diagram
DP mode input signal
Figure 9. Parity Mode Diagram
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NOTE
CLKin
sp34/sp30
sp14
sp13
Electrical and Thermal Characteristics
sp10
sp10
sp33b/sp30