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Preliminary
Features
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HTG1390 4-bit Microcontroller
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Operating voltage: 1.2V~1.8V 7 input lines 3 output lines Halt feature reduces power consumption Up to 16µs instruction cycle with 256kHz system clock at VDD=1.5V All instructions in 1 or 2 machine cycles 4K×8 program ROM Data memory RAM size 128×4 bits
27×3 segment LCD driver 8-bit table read instruction 5 working registers Internal timer overflow interrupt One level subroutine nesting RC oscillator for system clock 8-bit timer with internal clock source Sound effect circuit
General Description
The HTG1390 is the processor from Holtek’s 4-bit stand alone single chip microcontroller range specifically designed for LCD product applications.
HTG1390 Datasheet
