MCF5253CVM140 Freescale Semiconductor, MCF5253CVM140 Datasheet - Page 117

• Manufacturer Part Number: MCF5253CVM140
• Description: IC MPU 32BIT 140MHZ 225-MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: MCF525xr

Specifications of MCF5253CVM140

• Core Processor: Coldfire V2
• Core Size: 32-Bit
• Speed: 140MHz
• Connectivity: CAN, EBI/EMI, I²C, QSPI, UART/USART, USB OTG
• Peripherals: DMA, WDT
• Program Memory Type: ROMless
• Ram Size: 128K x 8
• Voltage - Supply (vcc/vdd): 1.08 V ~ 1.32 V
• Data Converters: A/D 6x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 225-MAPBGA
• Family Name: MCF5xxx
• Device Core: ColdFire V2
• Device Core Size: 32b
• Frequency (max): 140MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 1.2/3.3V
• Operating Supply Voltage (max): 1.32/3.6V
• Operating Supply Voltage (min): 1.08/3V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 225
• Package Type: MA-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Compliant

Figure 7-8
Figure 7-9
with a
data to be returned before the bus cycle can terminate.
Freescale Semiconductor
WRITE
SD_CS0
D[31:16]
SDRAS
SDCAS
A[31:0]
XDQM
SDWE
BCLK
shows a write followed by a read in continuous page mode. Because the bus cycle is terminated
shows two read accesses in continuous page mode.
command, the second cycle begins sooner after the write than after the read. A read requires
Figure 7-8. Synchronous, Continuous Page-Mode Access—Consecutive Reads
There is no precharge between the two accesses. Also, the second cycle
begins with a read operation with no
In continuous page mode, secondary accesses output the column address
only.
actv
tRCD = 2
Row
nop
read
tCASL = 1
MCF5253 Reference Manual, Rev. 1
Column
NOTE
NOTE
nop
ACTV
command.
read
tCASL = 1
Column
Synchronous DRAM Controller Module
nop
nop
tEP
pall
7-13