
CMOS 8-bit Single Chip Microcomputer
Description
The CXP843P40 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, and remote control
reception circuit besides the basic configurations of
8-bit CPU, ROM, RAM, and I/O port.
The CXP843P40 also provides a sleep/stop function
that enables lower power consumption.
This IC is the PROM-incorporated version of the
CXP84340 with built-in mask ROM. This provides the
additional feature of being able to write directly into
the program. Thus, it is most suitable for evaluation
use during system development and for small-quantity
production.
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 PROM capacity
40K bytes
Incorporated RAM capacity
1120 bytes
Peripheral functions
— A/D converter
8 bits, 8 channels, successive approximation method
(Conversion time of 32μs/10MHz)
— Serial interface
Incorporated 8-bit, 8-stage FIFO
(Auto transfer for 1 to 8 bytes), 1 channel
8-bit clock synchronization, 1 channel
— Timer
8-bit timer
8-bit timer/counter
19-bit time base timer
16-bit capture timer/counter
32kHz timer/counter
— Remote control reception circuit
8-bit pulse measuring counter, 6-stage FIFO
— PWM output
14 bits, 1 channel
Interruption
15 factors, 15 vectors, multi-interruption possible
Standby mode
Sleep/stop
Package
80-pin plastic QFP
– 1 –
E93840A7Y-PS
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operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
CXP843P40
80 pin QFP (Plastic)
Structure
Silicon gate CMOS IC