EM78P459

ry a n i m i l Pre I. GENERAL DESCRIPTION EM78P458/EM78P459 EM78P458 and EM78P459 are 8-bit microprocessors with low-power and high-speed CMOS technology. There is a 4096*13-bit Electrical One Time Programmable Read Only Memory (OTP-ROM) within it. Because of the OTP-ROM, the EM78P458 and EM78P459 offer users convenient ways to develop and verify their programs. Moreover, a user’s developed code can be programmed easily by an EMC writer. II. FEATURES Operating voltage range: 2.2V~6.0V Available in temperature range: 0°C~80°C Operating frequency range: DC ~ 16MHz Low power consumption: * less than 1.5 mA at 5V/4MHz * typical of 15 µA at 3V/32KHz * typical of 1 µA during the sleep mode 4096 x 13 bits on chip ROM 96 x 8 bits on chip registers (SRAM) 2 bi-directional I/O ports 8 level stacks for subroutine nesting 8-bit real time clock/counter (TCC) with selective signal sources and trigger edges, and with overflow interrupt 8-bit multichannel Analog-to-Digital Converter with 13-bit resolution Dual Pulse Width Modulation ( PWM ) with 10-bit resolution One pair of comparators Power-down mode (SLEEP mode) Six available interruptions * TCC overflow interrupt * Input-port status changed interrupt (wake up from the sleep mode) * External interrupt * ADC completion interrupt * PWM period match completion * Comparator high interrupt Programmable free running watchdog timer 8 Programmable pull-down I/O pins 8 programmable pull-high I/O pins 8 programmable open-drain I/O pins ...