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Description
The CXP81720B/81724B is a CMOS 8-bit micro-
computer which consists of A/D converter, serial
interface, timer/counter, time-base timer, high-
precision timing pattern generation circuit, PWM
output, 32kHz timer/counter, remote control reception
circuit, as well as basic configurations like 8-bit CPU,
ROM, RAM and I/O port. They are integrated into a
single chip.
Also CXP81720B/81724B provides sleep/stop
functions which enables to lower power consumption.
Features
A wide instruction set (213 instructions) which covers various types of data
— 16-bit arithmetic/multiplication and division/Boolean bit operation instructions
Minimum instruction cycle
250ns at 16MHz operation (4.5 to 5.5V)
122μs at 32kHz operation (2.7 to 5.5V)
Incorporated ROM capacity
20K bytes (CXP81720B)
24K bytes (CXP81724B)
Incorporated RAM capacity
800 bytes
Peripheral functions
— A/D converter
8 bits, 12 channels, successive approximation method
(Conversion time of 20.0μs at 16MHz)
Incorporated 8-bit and 8-stage FIFO, 1 channel
(Auto transfer for 1 to 8 bytes)
8-bit clock sync type, 1 channel
8-bit timer, 8-bit timer/counter, 19-bit time-base timer
32kHz timer/counter
PPG: maximum of 19 pins, 32 stages programmable
RTG: 5 pins, 2 channels
PWM: 12 bits, 2 channels (Repetitive frequency 62kHz/16MHz)
DA gate pulse output: 12 bits, 4 channels
Incorporated 26-bit and 8-stage FIFO
14 bits, 1 channel
8-bit pulse measuring counter, 6-stage FIFO
20 factors, 15 vectors, multi-interruption possible
Sleep/stop
100-pin plastic QFP/LQFP
CXP81800
— Serial interface
— Timer
— High-precision timing pattern generator
— PWM/DA gate output
— FRC capture unit
— PWM output
— Remote control reception circuit
Interruption
Standby mode
Package
Piggyback/evaluator
– 1 –
CXP81720B/81724B
CMOS 8-bit Single Chip Microcomputer
E97737-PS
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
Structure
Silicon gate CMOS IC
100 pin QFP (PIastic)
100 pin LQFP (PIastic)