TWR-K53N512-KIT Freescale Semiconductor, TWR-K53N512-KIT Datasheet - Page 27

• Manufacturer Part Number: TWR-K53N512-KIT
• Description: TWR-K53N512 Dev Kit
• Manufacturer: Freescale Semiconductor
• Series: Kinetisr
• Type: MCUr

Specifications of TWR-K53N512-KIT

• Kit Contents: TWR-K53N512 - 32bit MCU Module With MK53N512CMD100 & TWRPI-SLCD Daughter Card, DVD With IDE Software
• Mcu Supported Families: K50
• Kit Features: MK53N512CMD100 MAPBGA 144 Pins MCU, Tower
• Rohs Compliant: Yes
• Contents: Board
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: Tower System

4.5.2.5 External Watchdog Monitor (EWM)
4.5.2.6 System Clocks
4.5.3
4.5.3.1 On-Chip Memory
Freescale Semiconductor, Inc.
• Write-once control bits with unlock sequence
• Programmable timeout period
• Ability to test watchdog timer and reset
• Windowed refresh option
• Robust refresh mechanism
• Cumulative count of watchdog resets between power-on resets
• Configurable interrupt on timeout
• Independent 1 kHz LPO clock source
• Output signal to gate an external circuit which is controlled by CPU service or external input
• Frequency-locked loop (FLL)
• Phase-locked loop (PLL)
• Internal reference clock generator
• External clock from the Crystal Oscillator (XOSC)
• External clock monitor with reset request capability
• Lock detector with interrupt request capability for use with the PLL
• Auto Trim Machine (ATM) for trimming both the slow and fast internal reference clocks
• Multiple clock source options available for most peripherals
• 72MHz performance devices
• Digitally-controlled oscillator (DCO)
• DCO frequency range is programmable
• Option to program DCO frequency for a 32,768 Hz external reference clock source
• Internal or external reference clock can be used to control the FLL
• 0.2% resolution using 32 kHz internal reference clock
• 2% deviation over voltage and temperature using internal 32 kHz internal reference clock, 1% deviation with
• Voltage-controlled oscillator (VCO)
• External reference clock is used to control the PLL
• Modulo VCO frequency divider Phase/Frequency detector
• Integrated loop filter
• Slow clock with nine trim bits for accuracy
• Fast clock with four trim bits
• Can be used to control the FLL
• Either the slow or the fast clock can be selected as the clock source for the MCU
• Can be used as a clock source for other on-chip peripherals
• Can be used to control the FLL and/or the PLL
• Can be selected as the clock source for the MCU
limited temperature range (0°C to 70°C)
Memories and Memory Interfaces
K50 Family Product Brief, Rev. 8, 5/2011
Memories and Memory Interfaces
27