Holtek Semiconductor HT23B60
HT23B60 is an 8-bit CMOS microcontroller with various functionalities in a compact package such as SRAM, ROM I/Os, interrupt controller, timer and LCD controller/driver. It¢s suitable for use as electrical data bank, LCD game, calendar and speech products.FEATURES
● Operating voltage range: 2.4V~5.5V● Program ROM: 32K´16 bits
● Data RAM: 2.3K´8 bits
● 16-bit table read instructions
● Eight-level subroutine nesting
● Timer - Two 16-bit programmable timer counters - Real time clock (RTC) - Watchdog Timer (WDT)
● Four operating modes: Idle mode, Sleep mode,
● Build-in Low Battery detector
● 14 bidirectional I/O lines, 16 bidirectional I/O lines are share pin with segments
● LCD driver: - Up to a max. of 60 segments and 11 common - 660 dots, 1/4 or 1/5 bias capability, 1/10 or 1/11 duty, R type - LCD com/seg driving strength can be adjusted to Green mode and Normal mode
● Built-in 32768Hz x¢tal oscillator circuit
● Build-in circuit dual system clock 32768Hz, 3.58MHz compromise the display quality and current consumption, adjustable 16-level VLCD - Segment 0~15 supports Key Scan function
● Build-in a serial-parallel-interface hardware circuit
● Build-in a 8-bit PWM D/A hardware circuit
● 100-pin QFP package
GENERAL DESCRIPTION
Block Diagram...