PF590-06
E0C6274
4-bit Single Chip Microcomputer
● Core CPU Architecture
● Dual Slope Type A/D Converter
● Reference Voltage Generation Circuit
● General Purpose Operating Amplifier
Wide Voltage
Operation
Products
● SVD Circuit
■ DESCRIPTION
The E0C6274 is a single-chip microcomputer made up of the 4-bit core CPU E0C6200A, ROM, RAM, LCD
driver, input ports, output ports, I/O ports, clock timer, stopwatch timer, programmable timer, clock-synchro-
nized serial interface, general purpose operational amplifier, dual slope type A/D converter and watchdog timer.
Because of its low-voltage operation and low power consumption, this series is ideal for a wide range of applica-
tions, and is especially suitable for battery-driven systems.
■ FEATURES
● CMOS LSI 4-bit parallel processing
● Clock .....................................................32.768kHz/1MHz (Typ.)
● Instruction set........................................109 instructions
● Instruction execution time .....................When operated 32kHz: 153µsec, 214µsec, 366µsec
When operated 1MHz : 5µsec, 7µsec, 12µsec
● ROM capacity .......................................4,096 words, 12 bits per word
● RAM capacity ........................................512 words, 4 bits per word
● A/D converter ........................................Dual slope A/D converter
Resolution/conversion speed: programmable
(Need changed external parts)
6400 count: 500ms/3200 count: 250ms
1600 count: 125ms/800 count: 62.5ms
A/D conversion accuracy: ±0.2%
(Zone of temperature: 0°C to 50°C)
Analog measuring: programmable
(Voltage/difference voltage/resistor: measuring)
Analog voltage inputs: 5 channels
Reference voltage generation circuit
Middle electric potential (GND) generation circuit
● Built-in operational amplifier .................2 MOS input Op-Amps
● Input port ...............................................5 bits
(Selected by mask option: with or without pull-up resistor)
● Output port ............................................4 bits
(Clock output and buzzer output are available by mask option)
● Built-in stopwatch timer
● Built-in watchdog timer
● I/O port ..................................................12 bits
(Combine serial I/O ports clock: changed through software)
● Serial I/O port........................................1 port (Clock synchronous/8 bits)
● LCD driver .............................................Either 32 segments × 1, 2, 3 or 4 commons
(Selected through software)
Regulated voltage circuit and booster voltage circuit built-in
(Correspond to 3.0V to 4.5V LCD: VR adjustment)
● Timer .....................................................Time base counter
2ch.
Programmable timer/event counter (8 bits) 1ch.
SEIKO EPSON CORPORATION
1