MC9S08QB8 MC9S08QB4
Reference Manual
HCS08 Microcontrollers
Related Documentation:
• MC9S08QB8 (Data Sheet) Contains pi...
MC9S08QB8 MC9S08QB4
Reference Manual
HCS08 Microcontrollers
Related Documentation:
MC9S08QB8 (Data Sheet) Contains pin assignments and diagrams, all electrical specifications, and mechanical drawing outlines.
Find the most current versions of all documents at: http://www.freescale.com
MC9S08QB8RM Rev. 1 10/2008
freescale.com
MC9S08QB8 MCU Series Reference Manual, Rev. 1 2 Freescale Semiconductor
MC9S08QB8 Features
8-Bit HCS08 Central Processor Unit (CPU)
Up to 20 MHz CPU at 3.6 V to 1.8 V across temperature range of –40 °C to 85 °C
HC08 instruction set with added BGND instruction
Support for up to 32 interrupt/reset sources
On-Chip Memory
Up to 8 KB flash memory read/program/erase over full operating
voltage and temperature
Up to 512 bytes random-access memory (RAM) Security circuitry to prevent unauthorized
access to RAM and flash contents
Power-Saving Modes
Two very low power stop modes Low power run and low power wait modes Peripheral clock enable register can disable
clocks to unused modules, thereby reducing currents Very low power external oscillator that can be used in stop2 or stop3 modes to provide accurate clock source to real time counter 6 μs typical wakeup time from stop3 mode
Clock Source Options
Oscillator (XOSC) — Loop-control Pierce oscillator; crystal or ceramic resonator range of 31.25 kHz to 38.4 kHz or 1 MHz to 16 MHz
Internal Clock Source (ICS) — Internal clock source module containing a frequency-locked-loop (FLL) contro...