MCF5272CVF66J Freescale Semiconductor, MCF5272CVF66J Datasheet - Page 529

• Manufacturer Part Number: MCF5272CVF66J
• Description: IC MCU 166MHZ 196MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: MCF527xr

Specifications of MCF5272CVF66J

• Core Processor: Coldfire V2
• Core Size: 32-Bit
• Speed: 66MHz
• Connectivity: EBI/EMI, Ethernet, I²C, SPI, UART/USART, USB
• Peripherals: DMA, WDT
• Number Of I /o: 32
• Program Memory Size: 16KB (4K x 32)
• Program Memory Type: ROM
• Ram Size: 1K x 32
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 196-MAPBGA
• Processor Series: MCF527x
• Core: ColdFire V2
• 3rd Party Development Tools: JLINK-CF-BDM26, EWCF
• Development Tools By Supplier: NNDK-MOD5272-KIT, NNDK-MOD5270-KIT
• Leaded Process Compatible: No
• Rohs Compliant: No
• Peak Reflow Compatible (260 C): No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: No

Appendix B
Buffering and Impedance Matching
When required:
Freescale Semiconductor
What to do:
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configuration.
and hold times are met and to minimize EMC noise in terms of overshoot and undershoot of
signals.
SDRAM and a large number of external peripherals are required for a particular system
Some peripherals may have excessive input capacitance.
Minimize signal reflections at higher clock speeds.
Minimize capacitive loading on signals to SDRAMs.
Operation of MCF5272 at highest frequencies, i.e. 66MHz, requires clean signals to ensure setup
Add buffers on address and control signals shared by SDRAM and other peripherals.
NEVER put buffers between the MCF5272 device and the SDRAMs.
Put termination resistors as close as possible to outputs.
Or use buffers that have integral termination resistors.
MCF5272 ColdFire
®
Integrated Microprocessor User’s Manual, Rev. 3
B-1