MCF51EM256CLK Freescale Semiconductor, MCF51EM256CLK Datasheet - Page 557

• 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

25.2
The output of PRACMP can also be mapped to an external pin. When the output is mapped to an external
pin, register bit ACOPE controls the pin to enable/disable the PRACMP output function.
Freescale Semiconductor
PRACMPxP0
PRACMPxP1
PRACMPxP2
PRACMPxP3
PRACMPxP4
PRACMPxP5
PRACMPxP6
Enable ACMP Input Pins
External Signal Description
MCF51EM256 Series ColdFire Integrated Microcontroller Reference Manual, Rev. 8
PRGINS
ACIPEN[6:0]
External V
ACPSEL[2:0]
ACNSEL[2:0]
V
DD
MUX
Figure 25-1. PRACMP Block Diagram
in1
Internal V
V
in
V
in2
DD
+
–
ACINTS[1:0]
PRG
Stop mode
Programmable Reference Analog Comparator (PRACMP)
PRGOS[4:0]
ACMPF
Edge Detection
PRACMP
PRGEN
ACEN
ACOPEN
ACIEN
PRACMPO
Enable ACMP Input Pins
PRG output
Interrupt
Output
25-3