This feature makes the device especially suitable for use in battery applications. In addition, the excellent ESD/EFT protection features ensure the device is also suitable for use in AC power supply based application environments.

The new device has a Flash Program Memory capacity of 2Kx15, 98 bytes of SRAM Data Memory and 32 bytes of Data EEPROM. Its internal EEPROM memory can be used to store data such as product parameters or manufacturing data, which will be retained even if power is removed. This ability to store non-volatile data greatly enhances product flexibility.

Some of the other special characteristics of the device can be seen in its operating voltage of 2.2V~5.5V, high speed 8-channel 12-bit Analog to Digital Converter and up to 18 multi-function I/O pins etc. The device includes two multi-function Timer Modules that are capable of providing functions such as Compare Match Output, Capture Input, Timer/Event Counting, Single Pulse Output and PWM signal generation.

Its internal R-Type LCD driver supports 4 segments with current output control which are able to drive LCD panel display directly without external components. Good oscillator flexibility is provided by the provision of two oscillators, an internal high frequency RC type and an internal low frequency 32 KHz RC type. The internal high frequency RC oscillator has a fixed 8 MHz frequency with an accuracy of ±2% under constant temperature and constant voltage conditions.

The device meets with the full industrial specification requirements of -40°C~85°C operating temperature and has high noise immunity as well as Watchdog and LVR protection features that give excellent immunity against malfunction or erroneous operation. To support product development, Holtek naturally supplies a full suite of excellent hardware and software development tools including its HT-IDE300 software as well as a hardware emulator.

The hardware emulator is an e-Link which when used together with OCDS structured MCUs, can provide a full range of debug functions such as trace analysis features etc. With regard to device programming the Holtek provided e-WriterPro programmer is also capable of implementing full In-Circuit Programming to allow for fast program updates and product development. There are also a range of application guides to ensure developers have their designs up and running in the shortest time possible.

The device is available in four package types, 16-pin NSOP and 20-pin DIP/SOP/SSOP types.