MCF51EM256CLL Freescale Semiconductor, MCF51EM256CLL Datasheet - Page 41

• Manufacturer Part Number: MCF51EM256CLL
• Description: IC MCU 32BIT 256KB FLASH 100LQFP
• Manufacturer: Freescale Semiconductor
• Series: MCF51EMr

Specifications of MCF51EM256CLL

• Core Processor: Coldfire V1
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: I²C, SCI, SPI
• Peripherals: LCD, LVD, PWM, WDT
• Number Of I /o: 63
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 16x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-LQFP
• Processor Series: MCF51EM
• Core: ColdFire V1
• Data Bus Width: 32 bit
• Data Ram Size: 16 KB
• Interface Type: RS-232, LIN
• Maximum Clock Frequency: 50 MHz
• Number Of Timers: 3
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JLINK-CF-BDM26, EWCF
• Development Tools By Supplier: DEMOEM
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Freescale Semiconductor
1
2
3
Num
The performance of SPI2 depends on the configuration of power supply of the LCD pins. When the LCD pins
are configured with full complementary drive enabled (FCDEN = 1, VSUPPLY = 11 and RVEN = 0), and VLL3
is driven with external VDD, the SPI2 can operate at the max performance as the above table. When the internal
LCD charge pump is used to power the LCD pins, the SPI2 is configured with open-drain outputs. Its
performance depends on the value of the external pullup resistor implemented, and the max operating
frequency must be limited to 1 MHz.
SPI3 has open-drain outputs and its performance depends on the value of the external pullup resistor
implemented.
Refer to
10
11
12
13
1
2
3
4
5
6
7
8
9
3
Figure 19
C
D
D
D
D
D
D
D
D
D
D
D
D
D
Operating frequency
SPSCK period
Enable lead time
Enable lag time
Clock (SPSCK) high or low time
Data setup time (inputs)
Data hold time (inputs)
Slave access time
Slave MISO disable time
Data valid (after SPSCK edge)
Data hold time (outputs)
Rise time
Fall time
through
MCF51EM256 Series ColdFire Microcontroller Data Sheet, Rev.3
Characteristic
Figure
Preliminary—Subject to Change Without Notice
Table 22. SPI Electrical Characteristic
5
22.
6
4
Master
Master
Master
Master
Master
Master
Master
Master
Master
Output
Output
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Slave
Input
Input
t
Symbol
WSPSCK
t
SPSCK
t
t
Lead
t
t
t
t
f
t
t
Lag
t
t
HO
RO
FO
t
dis
t
op
SI
HI
RI
FI
a
v
f
t
Bus
cyc
Min
1/2
1/2
—
—
15
15
25
—
—
—
—
—
—
—
—
/2048
0
2
4
0
0
0
– 30
1,2
1024 t
t
t
cyc
cyc
f
f
2048
—25
—25
Bus
Bus
Max
25
25
—
—
—
—
—
—
—
—
—
—
—
—
1
1
– 25
– 25
/2
/4
Electrical Characteristics
cyc
t
t
SPSCK
SPSCK
Unit
t
t
t
t
t
Hz
ns
ns
ns
ns
ns
ns
ns
cyc
cyc
cyc
cyc
cyc
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