产品描述: FM8PE513M : OTP device FEATURES 1K Word on chip OTP 49x8 bits on chip general purpose registers (SRAM) 8-bit wide data path 5-level deep hardware stack Only 42 single word instructions All instructions are single cycle except for program branches which are two-cycle All OTP area GOTO instruction All OTP area subroutine CALL instruction Direct, indirect addressing modes for data accessing 8-bit real time clock/counter (Timer0) with 8-bit programmable pre-scaler Internal Power-on Reset (POR) Built-in Low Voltage Detector (LVD) for Brown-out Reset (BOR) Power-up Reset Timer (PWRT) and Oscillator Start-up Timer(OST) On chip Watchdog Timer (WDT) with internal oscillator for reliable operation and soft-ware watch-dog enable/disable control One I/O port IOB with independent direction control Soft-ware I/O pull-high/pull-down or open-drain control One internal interrupt source: Timer0 overflow; Two external interrupt source: INT pin, Port B input change Wake-up from SLEEP by INT pin or Port B input change Power saving SLEEP mode Built-in 8MHZ, 4MHZ, 1MHZ, and 455KHZ internal RC oscillator Programmable Code Protection Selectable oscillator options: - IRC: Internal Resistor/Capacitor Oscillator - ERIC: External Resistor/Internal Capacitor Oscillator Operating voltage range: 2.0V to 5.0V