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DESCRIPTION

The 4513/4514 Group is a 4-bit single-chip microcomputer designed with CMOS technology. Its CPU is that of the 4500 series using a simple, high-speed instruction set. The computer is equipped with serial I/O, four 8-bit timers (each timer has a reload register), and 10-bit A-D converter.

The various microcomputers in the 4513/4514 Group include variations of the built-in memory type and package as shown in the table below.

FEATURES

● Minimum instruction execution time ................................ 0.75 μs

(at 4.0 MHz oscillation frequency, in high-speed mode, VDD = 4.0 V to 5.5 V)

● Supply voltage

? Middle-speed mode

...... 2.5 V to 5.5 V (at 4.2 MHz oscillation frequency, for Mask

ROM version and One Time PROM version)

...... 2.0 V to 5.5 V (at 3.0 MHz oscillation frequency, for Mask

ROM version)

(Operation voltage of A-D conversion: 2.7 V to 5.5 V)

? High-speed mode

...... 4.0 V to 5.5 V (at 4.2 MHz oscillation frequency, for Mask

ROM version and One Time PROM version)

...... 2.5 V to 5.5 V (at 2.0 MHz oscillation frequency, for Mask

ROM version and One Time PROM version)

...... 2.0 V to 5.5 V (at 1.5 MHz oscillation frequency, for Mask

ROM version)

(Operation voltage of A-D conversion: 2.7 V to 5.5 V)

● Timers

Timer 1 ...................................... 8-bit timer with a reload register

Timer 2 ...................................... 8-bit timer with a reload register

Timer 3 ...................................... 8-bit timer with a reload register

Timer 4 ...................................... 8-bit timer with a reload register

● Interrupt ........................................................................ 8 sources

● Serial I/O....................................................................... 8 bit-wide

● A-D converter .................. 10-bit successive comparison method

● Voltage comparator ........................................................2 circuits

● Watchdog timer ................................................................. 16 bits

● Voltage drop detection circuit

● Clock generating circuit (ceramic resonator)

● LED drive directly enabled (port D)

APPLICATION

Microwave oven, rice cooker, audio, telephone, office equipment