KING BILLION ELECTRONICS CO., LTD
HE847701
HE80000 SERIES
1 Preliminary
V1.0
A. HE847701 Introduction
HE847701 is a member of 8-bit Micro-controller series developed by King Billion Electronics Ltd, User
can configure 32COM4096 dot LCD driver + 24 Bit I/O Port...3328 dot LCD driver + 48 Bit I/O
PortLCD driveror 48COM:5376 dot LCD driver + 24 Bit I/O Port...4224 dot LCD driver + 48
Bit I/O Port
or 64COM:6144 dot LCD driver + 24 Bit I/O Port...4608 dot LCD driver + 48 Bit I/O
Port
or 80COM:6400 dot LCD driver + 24 Bit I/O Port...4480 dot LCD driver + 48 Bit I/O Port
The configuration of LCD driver was selected from mask optionBuilt-in power regulator circuitmake
the LCD display more stableThe 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 2M byte ROM and 16K byte 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. HE847701 Features
Operation Voltage: 2.4V 3.6V
System Clock:
4MHz ~ 8MHz
Internal ROM:
2M Bytes(256K Program ROM+1792K Data ROM)
Internal RAM:
16K Bytes
Dual clock system: Normal(Fast) clock:
32.768K ~ 8MHz(No Internal Clock)
Slow
clock:
32.768KHz
Operation mode: DUALFASTSLOWIDLEand SLEEP mode
New RC type oscillatoraccuracy at 5%maximum frequency up to around 10 MHzPlease refer
to the detail frequency table on section F
With WDT (WATCH DOG TIMER) to prevent deadlock condition.
24~48 bit Bi-directional I/O port.
Mask Option can select PUSH-PULL or OPEN DRAIN output
mode for each I/O pin.
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
Built-in OP comparator
User can select any one of three LCD configurations --- 32COM*128 SEG LCD48COM*112 SEG
LCD, 64 COM*96 SEG, or 80 COM*80 SEG LCDThe 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
Provide LFR and LDL output signalwhich can be connected to KDS80as a LCD Segment
extension
LCDC[7:0]=[
G GG
BE]G : gray level controlB :blank(1)E: enable(1)
The 847701 provide different refresh cycle for different display configuration: 32 COM : Refresh
Cycle=
~170Hz
48 COM : Refresh Cycle=
~110Hz
64 COM : Refresh Cycle=
~
64Hz80 COM :
KING BILLION ELECTRONICS CO., LTD
HE847701
HE80000 SERIES
2 Preliminary
V1.0
Refresh Cycle=
~64Hz
One 7-bit current type D/A The new DAC output structurewhich do not need to use capacitor to
adjust the input current of 8050CProvide Mask Option to select different output current
3mA=>4, 1.5mA=>8, 0.75mA=>16, 0.375mA=>16to make sure there will be no signal
saturation
PWM device(No Rate Selection, connect with VDD & PWMP) Dedicated GND pin for PWM
block
Two external interrupts and three internal timer interrupts
Two 16-bit timers and one Time-Base timer
Instruction set 32 instructions, 4 addressing modes. 14-bit DATA POINTER for RAM and 21-bit
TABLE POINTER for ROM
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