MCF5307AI90B Freescale Semiconductor, MCF5307AI90B Datasheet - Page 422
MCF5307AI90B
Manufacturer Part Number
MCF5307AI90B
Description
IC MPU 32BIT COLDF 90MHZ 208FQFP
Manufacturer
Freescale Semiconductor
Series
MCF530xr
Datasheets
1.MCF5307AI66B.pdf
(484 pages)
2.MCF5307AI66B.pdf
(16 pages)
3.MCF5307AI66B.pdf
(2 pages)
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
Available stocks
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Part Number
Manufacturer
Quantity
Price
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Part Number:
MCF5307AI90B
Manufacturer:
FREESCAL
Quantity:
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Part Number:
MCF5307AI90B
Manufacturer:
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Quantity:
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Part Number:
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Reset Operation
18.10.1 Master Reset
To perform a master reset, an external device asserts RSTI. When power is applied to the
system, external circuitry should assert RSTI for a minimum of 80 CLKIN cycles after Vcc
is within tolerance. Figure 18-33 is a functional timing diagram of the master reset
operation, showing relationships among Vcc, RSTI, mode selects, and bus signals. CLKIN
must be stable by the time Vcc reaches the minimum operating specification. CLKIN
should start oscillating as Vcc is ramped up to clear out contention internal to the MCF5307
caused by the random states of internal flip-flops on power up. RSTI is internally
synchronized for two CLKIN cycles before being used and must meet the specified setup
and hold times in relationship to CLKIN to be recognized.
During the master reset period, all signals capable of being three-stated are driven to a
high-impedance; all others are negated. When RSTI negates, all bus signals remain in a
high-impedance state until the MCF5307 is granted the bus and the core begins the first bus
cycle for reset exception processing. A master reset causes any bus cycle (including DRAM
refresh cycle) to terminate and initializes registers appropriately for a reset exception.
Note that during reset D[7:0] are sampled on the negating edge of RSTI for initial
MCF5307 configurations listed in Table 18-12.
18-34
Bus Signals
CLKIN
RSTO
D[7:0]
RSTI
VCC
BR
BD
Freescale Semiconductor, Inc.
For More Information On This Product,
Figure 18-33. Master Reset Timing
Go to: www.freescale.com
MCF5307 User’s Manual
>80 CLKIN cycles
100K CLKIN cycles
PLL lock time
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