APU429
器件描述：4-Bit Micro-controller With LCD Driver
器件厂商：APLUS [Apuls Intergrated Circuits]
文件大小：439.35KB，共18页
Sponsor by e络盟器件资料摘要：
4-Bit Micro-controller With LCD Driver
Features
y Low power and low voltage operation
y Powerful instruction set (150 instructions)
y Memory capacity
«³ Instruction ROM capacity 4096 x 16 bits
«³ Index ROM capacity 256 x 8 bits
«³ 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
«³ External: INT, RFC, IOA/IOC/S port,
keystrobe
«³ 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
Preliminary 1 Ver.0.0
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Features
y Low power and low voltage operation
y Powerful instruction set (150 instructions)
y Memory capacity
«³ Instruction ROM capacity 4096 x 16 bits
«³ Index ROM capacity 256 x 8 bits
«³ 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
«³ External: INT, RFC, IOA/IOC/S port,
keystrobe
«³ 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
Preliminary 1 Ver.0.0
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