The CXP83400/83401 is a CMOS 8-bit single chip microcomputer developed for evaluating the function of the CXP83412/83416. It features a wide instruction set, minimum instruction cycle, applicable EPROM and RAM, and various peripheral functions.
The CXP83400/83401 is a CMOS 8‑bit single‑chip 80‑pin PQFP microcomputer designed for piggyback/evaluator use. It provides a wide 213‑instruction set, 16‑bit arithmetic, various Boolean operations, and multiple interruption sources.
The device integrates peripheral functions such as an 8‑bit, 8‑channel A/D converter, serial interface, multiple timers, LCD controller/driver, remote‑control reception circuit and PWM outputs. Pin assignments for both piggyback and evaluator modes are detailed, along with EPROM read timing specifications and package dimensions.
| Instruction set | 213 instructions |
|---|---|
| Operation speed | 400 ns at 10 MHz |
| Maximum ROM capacity | 16 KB |
| RAM capacity | 448 bytes (including LCD display data) |
| A/D converter | 8‑bit, 8 channels, successive approximation, 32 µs conversion at 10 MHz |
| Package type | 80‑pin ceramic PQFP |
| Timer functions | 8‑bit timer, 8‑bit timer/counter, 19‑bit time‑base timer, 32 kHz timer/counter |
| PWM outputs | 4 common outputs, 32 segment outputs |
It supports a wide instruction set of 213 instructions.
Integrated peripherals include an A/D converter, serial interface, timer, LCD controller/driver, remote‑control reception circuit and PWM output.
The maximum EPROM capacity is 16 KB.