PF681-06
E0C88316
8-bit Single Chip Microcomputer
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olta
V
ide ration
W e
ts
Op oduc
Pr
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Original Architecture Core CPU
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Dot-matrix LCD Driver
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512K-byte Addressable Space
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Wide-range Operating Voltage (1.8V to 5.5V)
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High Speed Operation in Low Voltage (0.48µsec/3.0V)
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DESCRIPTION
The E0C88316 is a CMOS 8-bit microcomputer composed of a CMOS 8-bit core CPU, ROM, RAM, I/O, serial
interface, dot-matrix LCD driver, timer and event counter. The E0C88316 is best suited for systems needing a
large-sized memory and screen, such as a high performance data bank or an electronic dictionary.
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FEATURES
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CMOS LSI 8-bit parallel processing
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Clock ..................................................... Twin clock system Low-speed clock : 32.768kHz (OSC1, Typ.)
High-speed clock : 8.2MHz (OSC3/3.5V, Max.)
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Instruction execution time ..................... 0.244µsec (Min.)
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Multiplication and division instructions included
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ROM capacity ....................................... 16K
×
8 bits
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RAM capacity ........................................ 2K
×
8 bits (Working RAM)
3,216 bits (Display RAM)
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Addressing ............................................ 512K-byte (19 bits)
Address bus: 19-bit ROM addressing, 19-bit RAM addressing
(Can be used as general output ports when the address bus is not used.)
Data bus
CE signal
WR signal
RD signal
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I/O port .................................................. Input only
Output only
: 8 bits
: 4 bits
: 1 bit
: 1 bit
(Can be used as general output ports
when the control signals are not used.)
(Can be used as general I/O ports when the data bus is not used.)
: 10 bits
(BREQ and EVIN are available by software)
: 9 bits
(BZ, CL, FR, FOUT, TOUT and BACK are avail-
able by software)
Bidirectional I/O : 8 bits
(SRDY, SCLK, SIN and SOUT are available by
software)
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Serial interface ...................................... 1 channel
(Clock synchronous or Asynchronous can be selected by software)
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LCD driver ............................................. Dot-matrix type (5
×
8 or 5
×
5 fonts)
67 segments
×
16 commons (1/16 duty, 1/5 bias)
51 segments
×
32 commons (1/32 duty, 1/5 bias)
Built-in power supply circuit for LCD driver (voltage booster)
(LCD segments can be expanded with external LCD driver)
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Timer ..................................................... 8-bit programmable timer/event counter : 2 channels
(16-bit 1 channel timer is available)
Time base counter (8 bits)
Stopwatch timer (8 bits)
: 1 channel
: 1 channel
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Sound generator ................................... Envelope function, equipped with volume control
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SEIKO [ SEIKO EPSON CORPORATION ]
