New A/D with LCD type Mask MCUs - HT46C62, HT46C64, HT46C65

September 27, 2005

Following on from the successful release of its OTP devices, Holtek is pleased to announce the release of three new devices, namely the HT46C62, HT46C64 and HT46C65. By enhancing greatly the possibilities within the A/D with LCD device range, these three new devices offers prospective users a choice of even more application possibilities and increased flexibility.

The HT46C62, HT46C64 and HT46C65 devices each contain 2K, 4K and 8K of internal program memory and 88, 192 and 384 bytes of internal RAM memory respectively. Each device has an internal LCD Driver function with a size of 19 X 4, 32 X 4 and 40 X 4 for the HT46R62, HT46R64 and HT46R65 devices respectively. With up to 24 general purpose I/O pins available there is ample flexibility available for input/output control of external hardware such as LED driving, TRIAC driving, Relay driving etc. The HT46C62, HT46C64 and HT46C65 devices each contain either a 9 or 10 bit resolution internal A/D converter which by interfacing to a range of suitable external sensors opens up possibilities for applications which require the measurement of external analog signals such as voltage, current, temperature etc. Each device also possesses an internal PWM function, a very useful feature, which by changing the value within a dedicated internal register can very conveniently directly and immediately control the duty cycle of the generated PWM signal. This PWM output function is applicable in areas such as temperature controllers, voltage and current controllers etc.

These three new devices offer a range of internal features of which include an RTC (Real Time Clock), power down function with wake-up options on all pins of Port A and a PFD (Programmable Frequency Divider) function, which is useful for applications which require a precise frequency source. A Buzzer Driver Output is also included which is able to directly drive a piezo or similar type buzzer audio device. The LVR (Low Voltage Reset) and LVD (Low Voltage Detector) internal functions provide additional protection features in situations where low power supply voltages may occur.

With all of these new A/D with LCD microcontroller devices conforming to industrial specification requirements, the HT46C62 is available in a 52-pin QFP and 56-pin SSOP package type while the HT46C64 and HT46C65 devices are available in both 52-pin QFP, 56-pin SSOP and 100-pin QFP package types. These new devices have an extremely wide range of application possibilities a few of which could be industrial control, household appliances, exercise machines etc.

Holtek's present comprehensive suite of hardware and software tools, in the form of the HT-IDE3000 development system, of course fully support these three new devices. Features such as real time emulation, memory/register modification, hardware execution breakpoints, trace analyzers etc, are all standard features of the system, all of which add together to provide designers with all the tools they need for rapid and efficient product application development and debug.