EM73P968

EM73P968 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT GENERAL DESCRIPTION ary n i m i l e Pr EM73P968 is an advanced single chip CMOS 4-bit one time programming (OTP) micro-controller. It contains 16K-byte ROM, 2.5K nibbles RAM, 4-bit ALU, 13-level subroutine nesting, 22-stage time base, two 12-bit timer/ counters for the kernel function. EM73P968 also contains 6 interrupt sources, 1 input port, 8 bidirection ports, Max LCD display (52x5), built-in watch-dog-timer and high speed Timer/Counter. An analog to digital (A/D) converter having 8-bit multipler analog input and 8-bit resolution. Serial peripheral interface (SPI). EM73P968 has plentiful operating modes (SLOW, IDLE, STOP) intended to reduce the power consumption. FEATURES • Operation voltage • Clock source • • • • • • • • • • • • • • • • • • : 2.2V ~ 6V. : Dual clock system. Low-frequency oscillator is Crystal or RC oscillator (32K Hz, connect an external resistor) by mask option and high-frequency oscillator is RC (Connect an external resistor) or Crystall oscillator. Instruction set : 107 powerful instructions. Instruction cycle time : Up to 2us for 4 MHz (high speed clock). 122 µs for 32768 Hz (low speed clock with frequency Double) ROM capacity : 16K x 8 bits. RAM capacity : 2.5K x 4 bits. Input port : 1 port, P0(0..3), IDLE/STOP releasing function are available by mask option. Output port : 9 pins (P17.0, P30, P31), P17.0, P30, P31 are shared with LCD pins. Bidirection port : 9 ports (P1, P2, P4, P5, P6, P7, P8, P11,...