NXP® understands the challenge of performance within an energy budget and offers a wide portfolio of S08 devices that help you reach target performance levels while minimizing low-power in your design. The S08QB family demonstrates extreme energy-efficiency for ultra-long operating life in battery-powered applications.
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## Features
### Power-Saving Features
* Two ultra-low-power stop modes, one of which allows limited use of peripherals
* New low-power run and wait modes
* 6 µs typical wake up time from stop mode
* Internal clock Source (ICS)—module containing a frequency locked-loop (FLL) controlled by internal or external reference
* Oscillator (OSC)—loop-control Pierce oscillator
* crystal or ceramic resonator range of 31.25 kHz to 38.4 kHz or 1 MHz to 16 MHz
* Clock gating disables clocks to unused peripherals
### 8-bit HCS08 Central Processing Unit (CPU)
* Up to 20 MHZ HCS08 CPU from 1.8V to 3.6V and across temperature range of -40°C to +85°C
* HCS08 instruction set with added BGND instruction
### On-Chip Memory
* Up to 8 KB flash read/program/erase over full operating voltage and temperature
* Up to 512 bytes of random access memory(RAM) with low ram retention voltage and security feature
### Peripherals
* ADC—8-channel
* 12-bit resolution for 28-pin and 24-pin packages
* 10-bit resolution for 16-pin package
* 2.5 µs conversion time for both 10-bit and 12-bit resolution
* Automatic compare function
* Internal temperature sensor
* Internal bandgap reference channel
* Operation in low-power stop mode
* Timer/pulse-width modulator (TPM)
* One channel with 16-bit counter
* Selectable input capture
* Output compare
* Buffered edge- or centeraligned PWM
* Located at PTA0 by default but it can also be selected by software to relocate at PTB5 port
* Serial communications interface (SCI)
* Offering asynchronous communications
* 13-bit break option
* Flexible baud rate generator
* Optional H/W parity checking and generation
* Analog comparator (ACMP)
* Option to compare to an internal reference voltage
* Output can be optionally routed to TPM as input capture trigger
* 8-bit module timer module with 8-bit prescaler (MTIM)
### Input/Output
* Up to 22 general purpose input/output (GPIO), one input-only and one output-only pin
* 8 keyboard interrupts (KBI) pins with selectable polarity
### System Protection
* Watchdog computer operating properly (COP) reset with option to run from dedicated 1 kHz internal clock source or bus clock
* Low-voltage detection with reset or interrupt, selectable trip points
* Illegal op code and illegal address detection with reset
