Nuvoton NuMicro MS51 32K Series - User Manual

MS51
Nov. 28, 2019 Page 1 of 491 Rev 1.00
MS51 32K SERIES TECHNICAL REFERENCE MANUAL
1T 8051
8-bit Microcontroller
NuMicro
®
Family
MS51 32K Series
MS51FC0AE
MS51XC0BE
MS51EC0AE
MS51TC0AE
MS51PC0AE
Technical Reference Manual
The information described in this document is the exclusive intellectual property of
Nuvoton Technology Corporation and shall not be reproduced without permission from Nuvoton.
Nuvoton is providing this document only for reference purposes of NuMicro
®
microcontroller based
system design. Nuvoton assumes no responsibility for errors or omissions.
All data and specifications are subject to change without notice.
For additional information or questions, please contact: Nuvoton Technology Corporation.
www.nuvoton.com

Summary

1 GENERAL DESCRIPTION

2 FEATURES

Core and System

Details about the 8-bit 8051-based microcontroller core and its features.

Brown-out Detector (BOD)

Configurable BOD levels with interrupt/reset options for system reliability.

Low Voltage Reset (LVR)

LVR with a 2.0V threshold voltage level for system stability.

Security

Security features including Unique ID, UCID, and SPROM.

Memories

Details on Flash memory (APROM, LDROM, SPROM) and SRAM (on-chip and XRAM).

Clocks

System clock sources: external crystal and internal oscillators.

Timers

Details on the two 16-bit timers/counters and Timer 2 with input capture.

Watchdog

Watchdog Timer (WDT) features for system monitoring and time-out resets.

Wake-up Timer

Self Wake-up Timer (WKT) for periodic wake-up in low power modes.

PWM

Pulse Width Modulation (PWM) capabilities, including output channels and modes.

Analog Interfaces

Includes the 12-bit Analog-to-Digital Converter (ADC) for analog signal conversion.

Communication Interfaces

Serial communication interfaces including UART, I2C, SPI, and ISO-7816.

UART

Two enhanced full-duplex UARTs with address recognition and framing error detection.

I2 C

I2C bus interface supporting master/slave modes, multi-master, and various speeds.

SPI

Serial Peripheral Interface supporting master/slave modes and various clock rates.

ISO-7816

Interface controller compliant with ISO 7816-3 standard for smart card communication.

GPIO

General Purpose I/O pins with multiple modes like quasi-bidirectional, push-pull, input-only.

3 PARTS INFORMATION

3.1 Package Type

Information on the available package types for the MS51 series.

3.2 MS51 Series Selection Guide

Guide to select the appropriate MS51 part number based on features.

3.3 MS51 Series Selection Code

Explanation of the part number coding scheme for selecting MS51 devices.

4 PIN CONFIGURATION

4.1 MS51 32 K Series Multi Function Pin Diagram

Visual diagrams showing pin assignments and multiple functions for various packages.

4.1.1 QFN 33-pin Package Pin Diagram

Pin diagram for the QFN 33-pin package.

4.1.2 LQFP 32-pin Package Pin Diagram

Pin diagram for the LQFP 32-pin package.

4.1.3 TSSOP 28-pin Package Pin Diagram

Pin diagram for the TSSOP 28-pin package.

4.1.4 TSSOP 20-pin Package Pin Diagram

Pin diagram for the TSSOP 20-pin package.

4.1.5 QFN 20-pin Package Pin Diagram

Pin diagram for the QFN 20-pin package.

4.2 MS51 32 K Series Pin Description

Detailed description of each pin's function and multi-function capabilities.

5 BLOCK DIAGRAM

5.1 MS51 32 K Series Block Diagram

High-level functional block diagram of the MS51 microcontroller.

6 FUNCTIONAL DESCRIPTION

6.1 Memory Organization

Explanation of Program Memory, Data Memory, and SFR organization.

6.2 System Manager

Manages system resources: clocks, power, resets, and interrupts.

6.3 Flash Memory Control

Controls for In-Application-Programming (IAP) and In-Circuit-Programming (ICP).

Nuvoton NuMicro MS51 32K Series Specifications