MCF51EM128CLL Freescale Semiconductor, MCF51EM128CLL Datasheet - Page 271

• Manufacturer Part Number: MCF51EM128CLL
• Description: IC MCU 32BIT 128KB FLASH 100LQFP
• Manufacturer: Freescale Semiconductor
• Series: MCF51EMr

Specifications of MCF51EM128CLL

• 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: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K 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: TWR-MCF51CN-KIT, TWR-SER, TWR-ELEV, TOWER
• 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

11.4.7
The ICS module supports an external reference clock with frequencies between 31.25 kHz to 40 MHz in
all modes. When the ERCLKEN is set, the external reference clock signal is presented as ICSERCLK,
which can be used as an additional clock source in run mode. When IREFS = 1, the external reference
clock is not used by the FLL and will only be used as ICSERCLK. In these modes, the frequency can be
equal to the maximum frequency the chip-level timing specifications support (see the
chapter).
If EREFSTEN is set and the ERCLKEN bit is written to 1, the external reference clock source (OSCOUT)
keeps running during stop mode in order to provide a fast recovery upon exiting stop.
11.4.8
The ICS presents the divided FLL reference clock as ICSFFCLK for use as an additional clock source.
ICSFFCLK frequency must be no more than 1/4 of the ICSOUT frequency to be valid.
11.4.9
The ICS presents the low range DCO output clock divided by two as ICSLCLK for use as a clock source
for BDC communications. ICSLCLK is not available in FLL bypassed internal low power (FBILP) and
FLL bypassed external low power (FBELP) modes.
Freescale Semiconductor
External Reference Clock
Fixed Frequency Clock
Local Clock
MCF51EM256 Series ColdFire Integrated Microcontroller Reference Manual, Rev. 8
Internal Clock Source (ICS)
Device Overview
11-17