KING BILLION ELECTRONICS CO., LTD
駿 億 電 子 股 份 有 限 公 司
HE84760
HE80000 SERIES
A. HE84760 Introduction
HE84760 is a member of 8-bit Micro-controller series developed by King Billion Electronics Ltd,
User can configure 32COM:【3072 dot LCD driver + 16 Bit I/O Port】…【2304 dot LCD driver + 40 Bit
I/O Port】LCD driver,or 48COM:【3840 dot LCD driver + 16 Bit I/O Port】…【2688 dot LCD driver +
40 Bit I/O Port】,or 64COM:【4096 dot LCD driver + 16 Bit I/O Port】…【2560 dot LCD driver + 40 Bit
I/O Port】。Built-in power regulator circuit,make the LCD display more stable。The built-in OP
comparator can be used with (light, voice, temperature, humility) sensor or battery low detection. A 7-bit
current type D/A converter and PWM device provide the complete speech output mechanism.。 The
512KB ROM and 4KB RAM can be used as the storage of large speech data, graphic, text etc. It can be
used for Dictionary, Data Bank, Medium Level Educational Toy, Low duration Voice Recording System
etc..
The instruction set are quite easy to learn and simple to use. There are only about thirty instructions
with four-type addressing modes are provided. Most of instructions take only 3 oscillator clocks (machine
cycles), which is the high efficiency and low power MCU.
B. HE84760 Features
z Operation Voltage:
z System Clock:
2.4V – 3.6V
4MHz ~ 8MHz
z Internal ROM:
512K Bytes(256K Program ROM+256K Data ROM)
4K Bytes; Dedicated RAM VDD
z Internal RAM:
z Dual Clock System:
Normal(Fast) clock:
Slow clock:
32.768K ~ 8MHz(No Internal Clock)
32.768KHz
z Operation Mode:
DUAL、FAST、SLOW、IDLE、and SLEEP mode。
z New RC type oscillator,accuracy at ±5%,maximum frequency up to around 10 MHz。Please refer
to the detail frequency table on section F。
z Internal Power on Reset circuit。
z With WDT (WATCH DOG TIMER) to prevent deadlock condition.。
z 16~40 bit Bi-directional I/O port. Mask Option can select PUSH-PULL or OPEN DRAIN output
mode for each I/O pin.
z The new built-in hardware auto scan keyboard(4*20)(shared with LCD SEG pin),not only reduce
the hardware cost, but also reduce the firmware effort。
z Built-in OP comparator。
z User can select any one of three LCD configurations --- 32COM*96SEG LCD,48COM*80SEG
LCD,or 64COM*64SEG LCD。The LCD scan signal are Type B(please refer to HE80000 user’s
manual, section 4.3.9 LCD control register), It is built-in type-IV LCD driver. The highest LCD
voltage LVP must be lower than 8.5Volt。
z Provide LFR and LDL output signal,which can be connected to KDS80,as a LCD Segment
extension。
z One 7-bit current type D/A 。The new DAC output structure,which do not need to use capacitor to
adjust the input current of 8050C。Provide Mask Option to select different output current
3mA=>4Ω, 1.5mA=>8Ω, 0.75mA=>16Ω, 0.375mA=>16Ω,to make sure there will be no signal
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