PF742-04
E0C88112
8-bit Single Chip Microcomputer
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ide ration
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Original Architecture Core CPU
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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 E0C88112 is a CMOS 8-bit microcomputer composed of a CMOS 8-bit core CPU, ROM, RAM, I/O, serial
interface, timer and event counter. Systems with a large-sized memory and middle-scale display, such as a
high performance data bank or an electronic dictionary, can be realized using the E0C88112 with the SED15
Series LCD driver, RAM and ROM.
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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
High-speed clock : 4.2MHz (3V) / 8MHz (5V)
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Instruction execution time ..................... 0.48µsec (Min.)
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Multiplication and division instructions included
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ROM capacity ....................................... 12K
×
8 bits
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RAM capacity ........................................ 256
×
8 bits (Working 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
: 8 bits
(Can be used as general I/O ports when the data bus is not used.)
CE signal : 4 bits
(Can be used as general output ports
WR signal : 1 bit
when the control signals are not used.)
RD signal : 1 bit
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I/O port .................................................. Input only
: 10 bits
(BREQ and EVIN are available by software)
Output only
: 9 bits
(BZ, CL, FR, FOUT, TOUT and BACK are
available by software)
Bidirectional I/O : 8 bits
(SRDY, SCLK, SIN, SOUT, CMPP0, CMPM0,
CMPP1 and CMPM1 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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Timer ..................................................... 8-bit programmable timer/event counter : 2 channels
(16-bit 1 channel timer is available)
Time base counter (8 bits)
: 1 channel
Stopwatch timer (8 bits)
: 1 channel
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Sound generator ................................... 8 levels, with envelope, volume adjustment and 1 shot functions
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Watchdog timer ..................................... Generates NMI
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Supply voltage detection (SVD) circuit .... 16 levels (0.2V steps from 1.8V to 5.5V) can be detected
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Analog comparator ............................... 2 channels built-in
(Bidirectional I/O port is used as the input port)
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Interrupt ................................................. External : 2 systems (SCI, K inputs)
Internal : 4 systems (W/D, PTM/EV, TMB, SW)
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Supply voltage ...................................... 1.8V to 5.5V
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Current consumption ............................ SLEEP mode 200nA (3V)
(Low power mode)
HALT mode
1.0µA (32.768kHz/3V) (Low power mode)
RUN mode
8.0µA (32.768kHz/3V) (Low power mode)
1.8mA (4.2MHz/3V)
(Normal mode)
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Package ................................................ QFP14-80pin (plastic), QFP15-100pin (plastic)
SEIKO EPSON CORPORATION
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SEIKO [ SEIKO EPSON CORPORATION ]
