PF468-08
E0C6281
4-bit Single Chip Microcomputer
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oltan
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ow ratio s
L e
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Op oduc
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Core CPU Architecture
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SVD Circuit/Comparator
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Melody Circuit
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DESCRIPTION
The E0C6281 is an advanced single-chip CMOS 4-bit microcomputer consisting of the E0C6200 CMOS 4-bit
core CPU. It also contains the ROM, RAM, LCD driver, time base counter and melody generation circuit.
The E0C6281 provides an excellent solution for low-power consumption systems with clock functions.
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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 cycle time ............................ 153µsec, 214µsec or 366µsec (depending on instruction)
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ROM capacity ....................................... 1,024
×
12 bits
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RAM capacity ........................................ 96
×
4 bits
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Input port ............................................... 5 bits
(pull-down resistors are available by mask option)
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Output port ............................................ 4 bits (general purpose port)
2 bits (for melody output): MO, MO (also used as the external CR
connecting terminal for envelope)
1 bit (for lamp output)
1 bit (for clock output: frequency can be selected from 256Hz
through 32kHz by mask option)
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I/O port .................................................. 4 bits
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LCD driver ............................................. 26 segments
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3 commons, 1/3 duty or 4 commons, 1/4 duty
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Built-in stopwatch timer
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Built-in supply voltage detection (SVD) circuit
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Built-in comparator ................................ 1 ch.
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Built-in melody generation circuit .......... Equivalent to SVM7500 (80-word melody ROM is built in)
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Interrupts ............................................... External : Input interrupt
2 lines
Internal : Timer interrupt
1 line
Stopwatch interrupt
1 line
Melody completion interrupt 1 line
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Supply voltage ...................................... 1.5V/3.0V (Minimum operating voltage: 0.9V/0.9V)
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Current consumption ............................ E0C6281/62L81
HALT mode
: 1.0µA (Typ.)
OPERATING mode : 2.5µA (Typ.)
E0C62A81/62B81
HALT mode
: 5.5µA (Typ.)
OPERATING mode : 7.2µA (Typ.)
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Package ................................................ QFP6-64pin-S1 (plastic)
Die form
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LINE UP
Model
E0C6281
E0C62L81
E0C62A81
E0C62B81
Supply voltage
3.0V (1.8V to 3.5V)
1.5V (0.9V to 3.5V)
3.0V (1.8V to 3.5V)
1.5V (0.9V to 3.5V)
Clock
32kHz (Crystal oscillation)
32kHz (Crystal oscillation)
32kHz (CR oscillation)
32kHz (CR oscillation)
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SEIKO [ SEIKO EPSON CORPORATION ]
