PF1004-01
E0C62M2
4-bit Single Chip Microcomputer
ge
oltan
V
ow ratio s
L e
t
Op oduc
Pr
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Core CPU Architecture
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Dual Slope Type A/D Converter
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High Quality Display LCD Driver
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SVD Circuit
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DESCRIPTION
The E0C62M2 is a CMOS 4-bit single-chip microcomputer made up of the 4-bit core CPU E0C6200A, ROM,
RAM, dual slope type A/D converter, attenuator circuit for various measurement modes, LCD driver, serial
interface, and other circuits. It is especially suitable for measurement and LCD display systems such as a digital
multimeter.
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FEATURES
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CMOS LSI 4-bit parallel processing
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Clock ..................................................... 32.768kHz (Typ.)
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Instruction set ........................................ 100 instructions
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Instruction execution time ..................... 153µsec, 214µsec, 366µsec
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ROM capacity ....................................... 1,536 words
×
12 bits
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RAM capacity ........................................ 128 words
×
4 bits
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A/D converter ........................................ Dual slope type
Resolution : Conversion time (2 stages)
4,370 counts : 400 msec
A/D conversion precision: ±0.1%
(operating temperature range: 20°C to 40°C)
441 counts : 100 msec (High speed mode)
3 integral resistors can be connected
Current, voltage and resistance can be measured
AC voltage/AC current can be measured using an external rectifier circuit
Continuity check mode built-in (measurement value can be displayed)
Reference voltage generation circuit built-in
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Input port ............................................... 8 bits (pull down resistors can be supplemented by mask option)
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Output port ............................................ 4 bits
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Buzzer output ........................................ 2 ports (BZ, BZ)
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I/O port .................................................. 4 bits
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Serial interface ...................................... 1 port for data input
These ports can be switched
1 port for data output
1 port for clock input/output to general I/O port
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LCD driver ............................................. 16 segments
×
3 or 4 commons (can be switched using software)
LCD drive voltage generation circuit built-in (V
L1
, V
L2
, V
L3
)
Compatible with 3V LCD panel
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Timer ..................................................... Built-in
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Watchdog timer ..................................... Built-in
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Supply voltage detection (SVD) circuit .. 2.3 ± 0.15V
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Interrupt ................................................. External : Input port interrupt
2 systems
Internal : A/D interrupt
1 system
Timer interrupt
1 system
Serial interface interrupt 1 system
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Supply voltage ...................................... 3.0V (2.15V to 3.5V)
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Current consumption (Typ.) .................. HALT mode (32.768kHz/3.0V) : 3µA (Typ.)
A/D operating (32.768kHz/3.0V) : 0.9mA (in DC measurement)
A/D operating (32.768kHz/3.0V) : 1.1mA (in AC measurement)
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Package ................................................ QFP5-80pin (plastic/ceramic), QFP14-80pin (plastic) or chip
SEIKO EPSON CORPORATION
1
SEIKO [ SEIKO EPSON CORPORATION ]
