MCF51EM256CLL Freescale Semiconductor, MCF51EM256CLL Datasheet - Page 52

• 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

Pins and Connections
2.2.1
SCI1 and SCI2 are designed with twice the normal I/O drive capability on the TX pins. The RX pins can
either be fed directly from the digital I/O buffer, or those signals can be pre-conditioned using comparators
1 and 2 as shown in
timers before being passed off chip.
Controls for the circuitry shown in
Register 2
2-20
1
2
This is the default SCI Rx digital input.
The TPM channels have to be configured to Toggle on output compare. The TPM channel pins can be used
as regular GPIOs. Please see configurations in
SCI1/2
(SIMIPS2).”
Interfacing the SCIs to Off-Chip Circuits
TPM Ch0 Output
TPM Ch1 Output
Figure 2-4. On-Chip Signal Conditioning Associated with SCI RX and TX Pins
MTIM2 Output
MTIM3 Output
SIMIPS2[RX1IN] or [RX2IN]
MCF51EM256 Series ColdFire Integrated Microcontroller Reference Manual, Rev. 8
RX
TX
SIMIPS2[MTBASE1] OR [MTBASE2]
Figure
On-Chip Components
2-4. Similarly, the TX outputs can be modulated with the output of one of the
Note2
Figure 2-4
analog
comparator
SIMIPS2[MODTX1] OR [MODTX2]
digital
buffer
are discussed in
Section 4.7, “Pin Mux
-
+
Note1
0
1
Internal or external reference
RX1/2
TX1/2
Section 7.7.16, “Internal Peripheral Select
Controls.”
Off-Chip Opto-Isolators
opto
isolator
isolator
opto
Freescale Semiconductor