4-Key Touch I/O Flash MCU BS83A04C / 8SOP

Description

General Description
The device is a Flash Memory type 8-bit high performance RISC architecture microcontroller with
fully integrated touch key functions.
With all touch key functions provided internally, this device range has all the features to
offer designers a reliable and easy means of implementing Touch Keyes within their products
applications. The touch key functions are fully integrated completely eliminating the need for
external components.
For memory features, the Flash Memory offers users the convenience of multi-programming
features. Other memory includes an area of RAM Data Memory as well as an area of Emulated
EEPROM memory for storage of non-volatile data such as serial numbers, calibration data etc.
Protective features such as an internal Watchdog Timer and Low Voltage Reset functions coupled
with excellent noise immunity and ESD protection ensure that reliable operation is maintained in
hostile electrical environments.
This device includes fully integrated low and high speed oscillators which require no external
components for their implementation. The ability to operate and switch dynamically between a range
of operating modes using different clock sources gives users the ability to optimise microcontroller
operation and minimise power consumption. Easy communication with the outside world is provided
using the internal I2
C interface, while the inclusion of flexible I/O programming features, Time-Base
function, Timer Module and many other features further enhance device functionality and flexibility.
The touch key device will find excellent use in a huge range of modern Touch Key product
applications such as low power consumption portable devices, household appliances, consumer
products, etc.

CPU Features
• Operating Voltage
♦ fSYS=8MHz: 1.8V~5.5V
• Up to 0.5μs instruction cycle with 8MHz system clock at VDD=5V
• Power down and wake-up functions to reduce power consumption
• Oscillator types
♦ Internal High Speed 8MHz RC – HIRC
♦ Internal Low Speed 32kHz RC – LIRC
• Multi-mode operation: FAST, SLOW, IDLE and SLEEP
• Fully integrated internal oscillators require no external components
• All instructions executed in one or two instruction cycles
• Table read instructions
• 61 powerful instructions
• 4-level subroutine nesting
• Bit manipulation instruction
Peripheral Features
• Flash Program Memory: 1K×16
• RAM Data Memory: 128×8
• Touch Key Data Memory: 24×8
• Emulated EEPROM Memory: 32×16
• Watchdog Timer function
• 8 bidirectional I/O lines
• Single external interrupt line shared with I/O pin
• Single 10-bit Compact Timer Module for time measure, compare match output, PWM output
function
• Single Time-Base function for generation of fixed time interrupt signals
• I2
C interface
• Low voltage reset function
• 4 touch key functions
• Package type: 8-pin SOP, 10-pin DFN/MSOP