Holtek Semiconductor (Taipei, ROC) has announced the release of three new 8-bit, RISC architecture devices, the HT46R62, R64 and R65.
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The HT46R62, 64 and 65 devices each contain 2K, 4K and 8K of internal OTP memory and 88, 192 and 384 bytes of internal RAM memory, respectively. Each device has an internal LCD Driver function (19 X 4, 32 X 4 and 40 X 4 for the HT46R62, HT46R64 and HT46R65 devices). With up to 24 general purpose I/O pins available there is ample flexibility available for input/output control of external hardware such as LEDs, relays etc. The 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 possible applications requiring the measurement of external analog signals such as voltage, current, temperature, etc. Each device also possesses an internal PWM function; by changing the value within a dedicated internal register the device can directly and immediately control the duty cycle of the generated PWM signal.
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.
These new A/D with LCD microcontroller devices conform to industrial specification requirements. The HT46R62 is available in a 56-pin SSOP package type while the HT46R64 aqnd R65 devices are available in both 56-pin SSOP and 100-pin QFP package types. These new devices have an extremely wide range of applications, including industrial control, household appliances, exercise machines etc.
Holtek's present suite of hardware and software tools, in the form of the HT-IDE3000 development system, 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.