MCF51EM256CLL Freescale Semiconductor, MCF51EM256CLL Datasheet - Page 19

• 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

Chapter 1
Device Overview
This chapter provides a brief introduction to the MCF51EM256 series devices. Top level features and
block diagrams are shown; the V1 Coldfire CPU is discussed; and the subject of system clocks is
introduced. Later chapters provide details on memory maps, pinouts, and specific sub-systems.
1.1
1.1.1
The MCF51EM256 series microcontrollers are systems-on-chips (SoCs) that are based on the V1 ColdFire
core and the following features:
These devices are ideal for use in energy meters and monitoring applications.
1.1.2
The MCF51EM256 series devices are in various packages, as shown in
Freescale Semiconductor
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Operate at processor core speeds up to 50.33 MHz (peripherals operate at half of this speed) at
3.6 V to 2.5 V and 20 MHz at 2.5 V to 1.8 V
ColdFire V1 core with MAC unit
LCD module driver
Up to 256 KB of flash memory
Up to 16 KB of RAM
Independent RTC with separate time base, power domain, and 32 bytes of RAM
A collection of communications peripherals, including UART, IIC and SPI
Integrated 16-bit SAR analog-to-digital converter
Infrared communication modulation/demodulation support by the interconnection of SCI, TPM
and PRACMP modules
MCF51EM256 Series Microcontrollers
Definition
MCF51EM256 Series Devices
MCF51EM256 Series ColdFire Integrated Microcontroller Reference Manual, Rev. 8
Table 1-1. Package Availability of MCF51EM256 Series
Device Number
MCF51EM256
MCF51EM128
100-Pin LQFP
X
X
80-Pin LQFP
X
X
Table
1-1.
1-1