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APU4003T Datasheet

  • APU4003T

  • 4-Bit Micro-Controller With EPROM, 1K Word

  • 8頁

  • APLUS

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APU4003T
4-Bit Micro-Controller With EPROM, 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).
PROM 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).
PROM 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.
Endurance: More then 100 write cycles/word.
Security bit for read/write protection.
General Description
The
APU4003T
is an EEPROM-equipped high- performance 4-bit microcomputer.
It contains not only all functions compatible with
APU4003T,
but also an EEPROM, providing customers such
conveniences as on-board verification,
customized code, small quantity sample production, etc.
This chip especially provides a security bit to protect the customer鈥檚 code.
Block Diagram
Preliminary
1
Ver. 0.0

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