MCF51EM256CLK Freescale Semiconductor, MCF51EM256CLK Datasheet - Page 521

• Manufacturer Part Number: MCF51EM256CLK
• Description: IC MCU 32BIT 256KB FLASH 80LQFP
• Manufacturer: Freescale Semiconductor
• Series: MCF51EMr

Specifications of MCF51EM256CLK

• Core Processor: Coldfire V1
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: I²C, SCI, SPI
• Peripherals: LCD, LVD, PWM, WDT
• Number Of I /o: 56
• 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 12x16b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-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

24.2
The LCD module has several external pins dedicated to power supply and LCD frontplane/backplane
signaling. The LCD module can be configured to support eight backplane signals. The table below
itemizes all the LCD external pins. See the
configurations.
44 LCD frontplane/backplane
LCD bias voltages
LCD charge pump capacitance V
Freescale Semiconductor
BUS
IP
Alternate Clock
OSCOUT = 32.768 kHz
External Signal Description
Name
Write Buffer
MCF51EM256 Series ColdFire Integrated Microcontroller Reference Manual, Rev. 8
SOURCE
LCD[43:0]
LCD
BUS
cap1
V
V
Port
V
LL1
LL2
LL3
, V
V
Figure 24-1. LCD Driver Block Diagram
,
,
LCD
cap2
LCDBPEN
LCDPEN
Table 24-4. Signal Properties
Switchable frontplane/backplane driver that connects directly
to the display
LCD[43:0] can operate as GPIO pins
LCD bias voltages
Charge pump capacitor pins
Pins and Connections
Backplane Sequencer
LCD Waveform Registers
DUTY
ALT
BLANK
LCDCLK
HREFSEL
BBYPASS
Prescaler
Buffer
BRATE
LADJ
BLINK
BMODE
8 BP Phases
Function
chapter for device-specific pin
Frame Rate Clock
V
V
cap1
DD
VSUPPLY
CPSEL
FP or BP data
Sequenced
Charge Pump
LCDIEN
V
IREG
0.1 μF
RVEN
MUX
V
cap2
LCD Driver Module
High impedance
LCDIF
Reset State
FP or BP
LCD[x]
—
—
V
V
V
LL3
LL2
LL1
24-5