EM6625

R EM MICROELECTRONIC - MARIN SA EM6625 Ultra Low Power Microcontroller with 4x20 LCD Driver Features ‰ True Low Power 1.6 µA active mode, LCD On 0.4 µA standby mode, LCD Off 0.2 µA sleep mode @ 3 V, 32 KHz, 25 ºC Figure 1. Architecture ‰ ‰ ‰ ‰ ‰ ‰ ‰ ‰ ‰ ‰ ‰ ‰ ‰ ‰ ‰ ‰ ‰ ‰ ‰ ‰ ‰ Low Supply Voltage 1.2 V to 3.6 V Melody, 7 tones + silence inclusive 4-bit timer Universal 10-bit counter, PWM, event counter LCD 20 segments, 3 or 4 times multiplexed Temperature compensated LCD voltage levels Built-in LCD voltage multipliers LCD frequency 32 Hz/42.7 Hz/64 Hz 32 KHz or 128 kHz crystal oscillator 72 basic instructions 2 clocks per instruction cycle Mask ROM 4k x 16 bits RAM 128 x 4 bits Max. 12 inputs ; port A, port B, port SP Max. 8 outputs ; port B, port SP Voltage Level Detector (VLD), 8 levels software selectable from 1.2 V up to 4.0 V Prescaler down to 1 second ( crystal = 32 KHz ) 1/1000 sec 12 bit binary coded decimal counter with hard or software start/stop function 3 wire serial port , 8 bit, master and slave mode 5 external interrupts (port A, serial interface) 8 internal interrupts (3x prescaler, BCD counter 2x10-bit counter, melody timer, serial interface) timer watchdog and oscillation supervisor 32/128 KHz Crystal Osc ROM 4k X 16Bit RAM 128*4Bit VDD Power Supply VLD 8 Levels Power on Reset Watchdog Prescaler Millisecond Counter Core EM6600 10-Bit Univ Count/Timer Melody Generator Interrupt Controller Voltage Multiplier Port A 0 1 2 3 Port B 0 1 2 3 PW...