APU429 Datasheet, PDF (1/18 Pages) Aplus Intergrated Circuits – 4-Bit Micro-controller With LCD Driver

4-Bit Micro-controller With LCD Driver
Features
y Low power and low voltage operation
y Powerful instruction set (150 instructions)
y Memory capacity
Ϋʳ Instruction ROM capacity 4096 x 16 bits
Ϋʳ Index ROM capacity 256 x 8 bits
Ϋʳ Internal RAM capacity 384 or 256 x 4 bits
y Input/Output ports of up to 20 pins
y 8-level subroutine nesting
y Built-in LCD driver, 8 x 42 = 336 segments
y Built-in EL driver, frequency or melody generator
y Built-in Resistance-to-Frequency Converter
y Built-in 2-channel 6/8-bit PWM output
y Built-in key strobe function
(Shared with segment pin)
y Built-in voltage doubler, halver, tripler
quadrupler charge pump circuit
y Two 6-bit programmable timers with
programmable clock source
y Watchdog timer
y 4 external & 3 internal interrupt resources
Ϋʳ External: INT, RFC, IOA/IOC/S port,
keystrobe
Ϋʳ Internal: TM1, TM2, Predivider
y Dual clock operation
y HALT and STOP function
General Description
The APU429 is an embedded high performance
4-bit micro-computer with an on-chip LCD driver. It
contains all the necessary functions in a single chip:
4-bit parallel processing ALU, ROM, RAM, I/O ports,
timer, clock generator, dual clock, RFC, EL-light,
LCD driver, look-up table, watchdog timer and
keyboard scanning. The instruction set includes not
only 4-bit operation and manipulation instructions
but also various conditional branch instructions and
LCD driver data transfer instructions which are
powerful and easy to use.
The HALT function stops any internal operations
other than the oscillator, divider and LCD driver in
order to minimize the power dissipation.
The STOP function stops all the clocks in the chip.
Block Diagram
㖃 㕵 㕷 㕣㕥㖮㕣㕨
㖃 㕵 㕷 㕣㕡㖮㕣㕤
㖃 㕵 㕷 㕣㕩㖮㕤㕢
㖃 㕵 㕷 㕢㕧㖮㕣㕠
㕳 㕿 㕽 㕡㖮㕨
㖃 㕵 㕷 㕡㖮㖃 㕵 㕷 㕢㕦 㖆 㕴 㕴 㕡㖮㕤
㕹㕿 㕱 㖀 㖟 㖢㖤
㕟㖂 㕶 㕳
㕹㕿 㕲 㖀 㖟 㖢㖤
㕟㕵 㕼 㕜 㕲 㖊
㕹㕿 㕳 㖀 㖟 㖢㖤
㕟㕻 㕵 㖉 㕹㕾
㕹㕿 㕴 㖀 㖟 㖢㖤
㕟㖀 㖇 㕽
㕶 㖢㖕 㖡 㖥 㖕 㖞 㖓㖩
㕷 㖕 㖞 㖕 㖢㖑 㖤㖟 㖢
㕤 㕝㕲 㖙㖤 㕴 㖑 㖤㖑 㕲 㖥 㖣
㖄 㖑 㖒 㖜㖕 㖂 㕿 㕽
㕢㕥㕦 㖨 㕨
㕹㖞 㖔 㖕 㖨 㖃 㖂 㕱 㕽
㕢㕥㕦 㖨 㕤
㕼 㕳 㕴 㕴 㖢㖙㖦㖕 㖢
㖃 㖕㖗㖝 㖕㖞㖤㖀 㕼㕱
㕱 㕼㖅
㖃㖂㕱㕽
㕡㕢㕨 㖨 㕤
㕳㖅㖀 㕡
㕳㖅㖀 㕢
㕳㖅㖀 㕣
㖀 㖢㖕 㕝㕴 㖙㖦㖙㖔 㖕 㖢
㖇 㖑 㖤㖓㖘 㖔 㖟 㖗
㖄 㖙㖝 㖕 㖢
㕿 㖣㖓㖙㖜㖜㖑 㖤㖟 㖢
Preliminary
㕢 㖨 㕦 㕲 㖙㖤㖣
㖀 㖢㖕 㖣㖕 㖤 㖄 㖙㖝 㖕 㖢
㕳 㖟 㖞 㖤㖢㖟 㖜
㕳 㖙㖢㖓㖥 㖙㖤
㖃 㕡㖮㖃 㕤
㕨 㕝㕼 㖕 㖦㖕 㖜㖣 㖃 㖤㖑 㖓㖛
㕡 㕢 㕝㕲 㖙㖤 㖀 㖢㖟 㖗 㖢㖑 㖝
㕳 㖟 㖥 㖞 㖤㖕 㖢
㕹㖞 㖣㖤㖢㖥 㖓㖤㖙㖟 㖞
㕴 㖕㖓㖟㖔㖕㖢
㕽 㖑㖣㖛 㖂 㕿 㕽
㕤㕠㕩㕦 㖨 㕡㕦
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Ver. 0.0