HTG12G0

HTG12G0 Microcontroller Features Operating voltage: 2.4V~3.3V Eight input lines Two output lines Five working registers RC oscillator for system clock Crystal oscillator for RTC and LCD clock 8K×8 program ROM 156×4 data RAM 50×8 segment LCD driver, 1/5 bias, 1/8 duty 8-bit programmable timer with built-in frequency source Internal timer overflow and RTC interrupt 16 kinds of programmable sound effects Halt function and wake-up feature reduce power consumption One-level subroutine nesting 8-bit table read instruction Up to 4.0µs instruction cycle with 1.0MHz system clock at VDD=3V 95 powerful instructions General Description The HTG12G0 is a 4-bit single chip microcontroller specially designed for LCD product applications. It is ideally suited for applications requiring low power consumption, with many LCD segments such as calculator, scale, subsystem controller, hand-held LCD products and electronic appliances. 1 14th May ’99 HTG12G0 Block Diagram Notes: ACC: Accumulator R0~R4: Working registers PP, PS: Input ports PA2: LCD on/off switch PC: Program counter PA0~PA1: Output ports PA3: ROM bank control bit 2 14th May ’99 HTG12G0 Pad Assignment Chip size: 3070 × 4440 (µm)2 * The IC substrate should be connected to VSS in the PCB layout artwork. 3 14th May ’99 HTG12G0 Pad Coordinates Pad No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 Unit: µm X –1403.50 –1403....