SH67P33

www.DataSheet4U.com SH67P33 OTP 4-bit Micro-controller Features SH6610C-based single-chip 4-bit micro-controller ROM: 1K X 16 bits OTP ROM RAM: 48 X 4 bits RAM (Data Memory) Operation voltage: 1.8V - 3.6V (Typical: 3.0V) 16 CMOS bi-directional I/O pins and 1 COMS input pin 4-level subroutine nesting (including interrupts) One 8-bit auto re-loadable timer/counter Warm-up timer for power-on reset Powerful interrupt sources: - Internal interrupt (Timer0). - External interrupts: (rising edge). PORTB & PORTC or PORTB, PORTC & PORTD (Code Option) Remote control programmable carrier synthesizer Oscillator :(Code Option) - External Ceramic Resonator/Crystal Oscillator: 400kHz - 4MHz - Built-in RC Oscillator: 4MHz typical Instruction cycle time: - 4/455kHz (≈ 8.79µs) for 455kHz OSC clock - 4/4MHz (= 1µs) for 4MHz OSC clock Two low power operation modes: HALT and STOP Built-in watchdog timer OTP type/Code protection 20-pin DIP/TSSOP/SOP package General Description SH67P33 is dedicated to infrared remote control transmitter applications. This chip integrates the SH6610C 4-bit CPU core with DataSheet4U.com RAM, program ROM, one 8-bit timer, and programmable input/output pins and carrier synthesizer. When in standby function, system will stop oscillator and remain low power dissipation. DataShee Pin Configuration GND PORTD.0 PORTD.1 PORTE.0/OSCI PORTE.1/OSCO PORTD.2 PORTC.0 PORTC.1 PORTC.2 PORTC.3 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 VDD REM PORTA.3 PORTA.2 PORTA.1 P...