General Description; Selection Table - Holtek BS67F340 Manual

BS67F340/BS67F350/BS67F360/BS67F370
Enhanced Touch A/D Flash MCU with LCD Driver

General Description

The series of devices are Flash Memory A/D type 8-bit high performance RISC architecture
microcontroller with fully integrated touch key functions. With all touch key functions provided
internally and with the convenience of Flash Memory multi-programming features, each device 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 true EEPROM memory for storage of non-volatile data such as serial
numbers, calibration data, etc. Analog features include a multi-channel 12-bit A/D converter and a
temperature sensor. 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.
These devices also include fully integrated low and high speed oscillators which are flexibly used for
different applications. 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 UART, I
Timer modules and many other features further enhance device functionality and flexibility.
The 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.

Selection Table

Most features are common to all devices. The main features distinguishing them are Memory
capacity, I/O count, Timer Module features, Touch Module and key mumber, stack capacity, LCD
driver and package types. The following table summarises the main features of each device.
Part No.
BS�7F340
BS�7F3�0
BS�7F3�0
BS�7F370
Part No.
BS�7F340
BS�7F3�0
BS�7F3�0
BS�7F370
Note: As devices exist in more than one package format, the table reflects the situation for the package
with the most pins.
Rev. 1.40
C and SPI interfaces, while the inclusion of flexible I/O programming features,
2
Program Data Data
Memory Memory EEPROM
4K×1� �1�×8 1�8×8
8K×1� 7�8×8 1�8×8
1�K×1� 10�4×8 1�8×8
3�K×1� 1�3�×8 1�8×8
Touch Touch
Timer Module
Module Key
10-�it CTM�
10-�it PTM×1 4 1�
1�-�it STM×1
10-�it CTM�
10-�it PTM×1 � �0
1�-�it STM×1
10-�it CTM�
10-�it PTM×1 7 �8
1�-�it STM×1
10-�it CTM�
10-�it PTM×1 9 3�
1�-�it STM×1
9
External Temp.
I/O A/D
Interrupt Sensor
31 � 1�-�it×8
39 � 1�-�it×8
43 � 1�-�it×8
�9 � 1�-�it×8
LCD
SIM UART Stacks
Driver
√ √ 4×�4 8
√ √ 4×3� 8
√ √ 4×40 1�
√ √ 4×48 1�
De�e��e� 1�� �01�
Time
Base
√ �
√ �
√ �
√ �
Package
48LQFP
48/64LQFP
48/64LQFP
48/64/80LQFP