MCF5307AI90B Freescale Semiconductor, MCF5307AI90B Datasheet - Page 264

• Manufacturer Part Number: MCF5307AI90B
• Description: IC MPU 32BIT COLDF 90MHZ 208FQFP
• Manufacturer: Freescale Semiconductor
• Series: MCF530xr

Specifications of MCF5307AI90B

• Core Processor: Coldfire V3
• Core Size: 32-Bit
• Speed: 90MHz
• Connectivity: EBI/EMI, I²C, UART/USART
• Peripherals: DMA, POR, WDT
• Number Of I /o: 16
• Program Memory Type: ROMless
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 208-FQFP
• Maximum Clock Frequency: 90 MHz
• Maximum Operating Temperature: + 105 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Family Name: MCF5xxx
• Device Core: ColdFire
• Device Core Size: 32b
• Frequency (max): 90MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 3.3V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 208
• Package Type: FQFP
• Program Memory Size: 8KB
• Cpu Speed: 90MHz
• Embedded Interface Type: I2C, UART
• Digital Ic Case Style: FQFP
• No. Of Pins: 208
• Supply Voltage Range: 3V To 3.6V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Synchronous Operation
Figure 11-20 shows two read accesses in continuous page mode. Note that there is no
precharge between the two accesses. Also notice that the second cycle begins with a read
operation with no
Figure 11-21 shows a write followed by a read in continuous page mode. Because the bus
cycle is terminated with a
than after the read. A read requires data to be returned before the bus cycle can terminate.
Note that in continuous page mode, secondary accesses output the column address only.
11-30
Figure 11-20. Synchronous, Continuous Page-Mode Access—Consecutive Reads
RAS[0] or [1]
• Because of the nature of the internal CPU pipeline this condition does not occur
CAS[3:0]
DRAMW
BCLKO
A[31:0]
D[31:0]
SRAS
SCAS
often; however, the use of continuous page mode is recommended because it can
provide a slight performance increase.
ACTV
ACTV
t
RCD
Row
= 2
NOP
Freescale Semiconductor, Inc.
command.
For More Information On This Product,
WRITE
READ
t
CASL
command, the second cycle begins sooner after the write
Go to: www.freescale.com
MCF5307 User’s Manual
= 2
Column
NOP
READ
t
CASL
Column
= 2
NOP
NOP
t
EP
PALL