Description

The CXP82832/82840/82852/82860 is a CMOS 8-bit single chip microcomputer integrating on a single chip an A/D converter, serial interface, timer/counter, time base timer, capture timer/counter, fluorescent display panel controller/driver, remote control reception circuit, and PWM output besides the basic configurations of 8-bit CPU, ROM, RAM, and I/O port.

Specifications and features

• Wide-range instruction system (213 instructions) to cover various types of data

• 16-bit arithmetic/multiplication and division/boolean bit operation instructions

• Minimum instruction cycle 400ns at 10MHz operation (122µs at 32kHz operation)

• Incorporated ROM capacity: 32K bytes (CXP82832), 40K bytes (CXP82840), 52K bytes (CXP82852), 60K bytes (CXP82860)

• Incorporated RAM capacity: 1536 bytes (including fluorescent display area)

• Peripheral functions:

• A/D converter: 8 bits, 8 channels, successive approximation method (Conversion time of 32µs/10MHz)
• Serial interface: 8-bit, 8-stage FIFO incorporated (Auto transfer for 1 to 8 bytes), 1 channel 8-bit clock synchronized type, 1 channel
• Timers: 8-bit timer, 8-bit timer/counter, 19-bit time base timer, 16-bit capture timer/counter, 32kHz timer/counter
• Fluorescent display panel controller/driver: Supports the universal grid fluorescent display panel. High voltage drive output port of 56 pins (40V). Maximum of 640 segments display possible. Display timing number of 1 to 20. Dimmer function. Incorporated pull-down resistor (Mask option). Hardware key scan function (Maximum of 16 × 8 key matrix supportable)
• Remote control reception circuit: 8-bit pulse measurement counter, 6-stage FIFO
• PWM output: 14 bits, 1 channel

• Interruption: 16 factors, 15 vectors, multi-interruption possible

• Standby mode: SLEEP/STOP

• Package: 100-pin plastic QFP

• Piggyback/evaluation chip: CXP82800 100-pin ceramic QFP

Application Scenarios

This model can be used in various electronic devices such as appliances, control systems, and display panels where an 8-bit microcomputer with multiple peripheral functions is required.

Comparison

• Integration of multiple functions on a single chip.
• Wide-range instruction system to cover various types of data.
• Wide range of ROM and RAM capacity options.
• Support for different types of timers and counters.

• Limited to 8-bit architecture.
• Limited PWM output channels.