Product category:
Microprocessors, Microcontrollers and DSPs
News Release from: Holtek Semiconductor | Subject: HT49R70A-1
Edited by the Electronicstalk Editorial
Team on 13 December 2001
Microcontrollers drive for LCD
applications
The HT49R70A-1 is top performer of Holtek's new-generation 8bit general-purpose LCD series 8K OTP microcontroller.
The HT49R70A-1 is top performer of Holtek's new-generation 8bit general-purpose LCD series 8K OTP microcontroller It features 224 x 8bit data RAM, 24 I/O pins, up to 160pixel LCD driving capability, 16-level stack and two 16bit timers
This article was originally published on Electronicstalk on 8 Jan 2002 at 8.00am (UK)
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The HT49R70A-1 also possesses a low-power timer, which by using a newly added RTC oscillator input, allows timer operation to continue even when the processor is in its power-saving or halt mode.
The device also permits the function of the LCD to remain fully operational when the processor is in power-saving mode.
By incorporating a range of ROM LCD options within the microcontroller the interface to the LCD is simplified as the user can select the required bias and com options to match the LCD to be used.
In addition, by using a RAM mapping method, the system to LCD panel interface and operation is made much simpler.
With these special features the HT49R70A-1 is especially suited for a range of LCD display applications such as scales, multimeters, water meters, gas meters and timers as well as a range of household appliance applications.
To complement Holtek's range of microcontroller devices, a comprehensive set of hardware and software tools have also been developed in the form of the HT-IDE2000 development system.
Features such as real-time emulation, memory/register modification, hardware execution breakpoints, trace analysers etc, are all standard features of the system which provide designers with all the tools they need for rapid and efficient product application development and debug.
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