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CMOS 8-bit Single-chip Microcomputer
Description
The CXP85112B/85116B, CXP85220A/85224A/
85228A/85232A is a CMOS 8-bit single chip
microcomputer integrating on a single chip an A/D
converter, serial interface, timer/counter, time base
timer, vector interruption, on-screen display function,
I
2
C bus interface, PWM generator, remote control
reception circuit, HSYNC counter, power source
frequency counter and watch dog timer besides the
basic configurations of 8-bit CPU, ROM, RAM, and
l/O port.
The CXP85112B/85116B, CXP85220A/85224A/
85228A/85232A also provides a power-on reset
function and a sleep function that enables lower
power consumption.
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
1μs at 4MHz operation
Incorporated ROM capacity
12K bytes (CXP85112B)
16K bytes (CXP85116B)
20K bytes (CXP85220A)
24K bytes (CXP85224A)
28K bytes (CXP85228A)
32K bytes (CXP85232A)
Incorporated RAM capacity
352 bytes (CXP85112B/85116B)
448 bytes (CXP85220A/85224A/85228A/85232A)
Peripheral functions
— On-screen display function
12
×
16 dots, 128 types
21 words
×
4 Iines (more than 4 Iines possible)
Double scan mode compatible, jitter elimination circuit
— I
2
C bus interface
— PWM output
14 bits, 1 channel
6 bits, 8 channels
— Remote control reception circuit
8-bit pulse measurement counter with on-chip 6-stage FIFO
— A/D converter
4 bits, 4channels, successive approximation method
(Conversion time of 40μs/4MHz)
— HSYNC counter
— Power supply frequency counter
— Watch dog timer
— Serial I/O
8-bit clock synchronization
— Timer
8-bit timer, 8-bit timer/counter, 19-bit time base timer
Interruption
14 factors, 14 vectors, multi-interruption possible
Standby mode
Sleep
Package
64-pin plastic SDIP/QFP
Piggyback/evaluation chip
CXP85100A, CXP85190 (Custom font compatible)
CXP85200A, CXP85290 (Custom font compatible)
– 1 –
E93Z17B86
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.
CXP85112B/85116B
CXP85220A/85224A/85228A/85232A
64 pin SDIP (Plastic)
64 pin QFP (Plastic)
Structure
Silicon gate CMOS IC
Purchase of Sony's I
2
C components conveys a license under the Philips I
2
C Patent Rights to use these components
in an I
2
C system, provided that the system conforms to the I
2
C Standard Specifications as defined by Philips.