M054-LE datasheet(8/86 Pages) NUVOTON

8 / 86 page

M051 DN/DE

Oct. 05, 2015

Page 8 of 86

Rev 1.03

FEATURES



Core



ARM® Cortex

® -M0 core running up to 50 MHz



One 24-bit system timer



Supports Low Power Sleep mode



A single-cycle 32-bit hardware multiplier



NVIC for the 32 interrupt inputs, each with 4-levels of priority



Supports Serial Wire Debug (SWD) interface and two watchpoints/four breakpoints



Provides hardware divider and supports signed 32-bit dividend, 16-bit divisor operation



Wide Operating Voltage Range: 2.5V to 5.5V



Memory



8KB/16KB/32KB/64KB Flash for program memory (APROM)



4KB Flash for data memory (Data Flash)



4KB Flash for loader (LDROM)



4KB SRAM for internal scratch-pad RAM (SRAM)



Clock Control



Programmable system clock source



22.1184 MHz internal oscillator



4~24 MHz external crystal input



10 kHz low-power oscillator for Watchdog Timer and wake-up in Sleep mode



PLL allows CPU operation up to the maximum 50 MHz



I/O Port



Up to 40 general-purpose I/O (GPIO) pins for LQFP-48 package



Four I/O modes:



Quasi-bidirectional



Push-Pull output



Open-Drain output



Input only with high impendence



TTL/Schmitt trigger input selectable



I/O pin can be configured as interrupt source with edge/level setting



Supports high driver and high sink I/O mode



Configurable I/O mode after POR



Timer



Provides four channel 32-bit timers; one 8-bit pre-scale counter with 24-bit up-timer for

each timer



Independent clock source for each timer



24-bit timer value is readable through TDR (Timer Data Register)



Provides One-shot, Periodic and Toggle operation modes



Provides event counter function



Provides external capture/reset counter function



Two more timer clock sources from external trigger and internal 10 kHz



TIMER wake-up function



External capture input source selected from ACMP or TxEX



Toggle mode output pins selected from TxEX or TMx



Inter-Timer trigger mode



WDT (Watchdog Timer)

M054-LE 数据表(PDF) 8 Page - Nuvoton Technology Corporation

M054-LE 数据表(HTML) 8 Page - Nuvoton Technology Corporation

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