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APU4003 Datasheet

  • APU4003

  • 4-BIT MICRO-CONTROLLER WITH LCD DRIVER, 1K WORD

  • 9頁

  • APLUS

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APU4003
4-Bit Micro-Controller With LCD Driver, 1K Word
Features
Very low current dissipation
Wide operating voltage range
Supports both Ag and Li batteries
Powerful instruction set
4-level subroutine nesting (including interrupt)
4 event driven interrupts, 2 external and 2
internal
ROM size: 1024x15 bits
RAM size: 64x4 bits
Input ports: 2 ports/8 pins (S and M)
Output port: 1 port/4 pins (P)
Pseudo serial output port (P)
Input/output ports: 2 ports/8 pins (I/OA and I/OB)
Control outputs: ALARM, LIGHT
LCD driver outputs
(can drive up to 75 LCD segments)
Mask option to select 4 LCD drive modes: static,
duplex (1/2 duty 1/2 bias, 1/3 duty 1/2 bias or 1/3
duty 1/3 bias)
Mask option permits LCD driver output pins to
be used for DC output ports; up to 25 pins are
available
Segment PLA circuit permits any layout on LCD
panel
Built-in clock generator (crystal or RC)
Built-in voltage doubler, halver, tripler
General Description
The
APU4003
is a single chip 4-bit micro-controller with
LCD drivers. It can drive up to 3 common times or 25
segments, i.e. a 75-segment LCD driver. This 4-bit
micro-controller contains a 4-bit parallel processing
ALU, 1024x15-bit program ROM, 64x4-bit data RAM,
input/output ports, alarm driver, timer, clock generator,
crystal and RC oscillator circuit, LCD driver and 79
powerful instructions in a single chip. The HALT
instruction can be used to stop all internal operations
other than timer, clock generator, crystal/RC oscillator
and LCD driver. Very low current dissipation can be
easily achieved by combining 4 kinds of interrupt
functions and HALT instruction to minimize the
operation cycle.
Block Diagram
Preliminary
1
Ver. 0.0

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