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Home > Electronic Components & Supplies > Integrated Circuit > BS82C16A-3/BS82D20A-3 -- Touch Key 8-Bit Flash MCU with LED/LCD Driver
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Holtek Semiconductor Inc.
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BS82C16A-3/BS82D20A-3 -- Touch Key 8-Bit Flash MCU with LED/LCD Driver
These devices are a series of Flash Memory type 8-bit high performance RISC architecture microcontrollers with fully integrated touch key functions. With all touch key functions provided internally and with the convenience of Flash Memory multi-programming features, these devices 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. In addition to the flash program memory, other memory includes an area of RAM Data Memory as well as an area of EEPROM memory for storage of non-volatile data such as serial numbers, calibration data etc. Protective features such as an internal Watchdog Timer, Low Voltage Reset and Low Voltage Detector functions coupled with excellent noise immunity and ESD protection ensure that reliable operation is maintained in hostile electrical environments.

A full choice of HIRC, LIRC and LXT oscillators are provided indluding a fully intefrated system oscillator 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 I2C interface, while the inclusion of flexible I/O programming features, Timer Modules and many other features further enhance device functionality and flexibility.

The UART module is contained in these devices. It can support the applications such as data communication networks between microcontrollers, low-cost data links between PCs and peripheral devices, portable and battery operated device communication, etc.

These touch key devices will find excellent use in a huge range of modern Touch Key product applications such as instrumentation, household appliances, electronically controlled tools to name but a few.


CPU Features

Operating voltage
fSYS= 8MHz: 2.7V~5.5V
fSYS= 12MHz: 2.7V~5.5V
fSYS= 16MHz: 4.5V~5.5V
Up to 0.25us instruction cycle with 16MHz system clock at VDD=5V
Power down and wake-up functions to reduce power consumption
Three oscillators
- High Speed Internal RC
(HIRC: 8/12/16MHz)
- Low Speed Internal RC
(LIRC: 32kHz)
- Low speed External RC
(LXT: 32768Hz)
Multi-mode operation: NORMAL, SLOW, IDLE and SLEEP
All instructions executed in one or two instruction cycles
Table read instructions
63 powerful instructions
Up to 8-level subroutine nesting
Bit manipulation instruction
Peripheral Features

Flash Program Memory: 4Kx16 ~ 8Kx16
RAM Data Memory: 512x8 ~ 768x8
EEPROM Memory: 64x8
Fully integrated 16/20 touch key functions -- require no external components
Watchdog Timer function
Up to 26 bidirectional I/O lines
PMOS Source Current Adjustable
Software controlled 4-SCOM lines LCD driver with 1/3 bias
One external interrupt line shared with I/O pin
Multiple Timer Module for time measure, input capture, compare match output, PWM output or single pulse output function
Dual Time-Base functions for generation of fixed time interrupt signals
I2C Interface Module
UART Interface
Low voltage reset function
Low voltage detect function
Package: 24/28-pin SOP

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