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PDF MG82FG5B16 Data sheet ( Hoja de datos )
| Número de pieza | MG82FG5B16 | |
| Descripción | 8051-Based MCU | |
| Fabricantes | Megawin | |
| Logotipo |  |
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8051-Based MCU
MG82FG5B32/
MG82FG5B16/
MG82FG5B08
Data Sheet
Version: 1.03
This document contains information on a new product under development by Megawin. Megawin reserves the right to change or
discontinue this product without notice.
Megawin Technology Co., Ltd. 2005 All rights reserved.
2015/11 version 1.03
1 page  
━ SOP20 : MG82FG5B32AS20, MG82FG5B16AS20, MG82FG5B08AS20
━ SSOP16 : MG82FG5B08AL16
*: Tested by sampling.
MEGAWIN
MG82FG5BXX Data Sheet
5
5 Page 
1. General Description
The MG82FG5BXX is a single-chip microcontroller based on a high performance 1-T architecture 80C51 CPU
that executes instructions in 1~7 clock cycles (about 6~7 times the rate of a standard 8051 device), and has an
8051 compatible instruction set. Therefore at the same performance as the standard 8051, the MG82FG5BXX
can operate at a much lower speed and thereby greatly reduce the power consumption.
The MG82FG5BXX has 32K/16K/8K bytes of embedded Flash memory for code and data. The Flash memory
can be programmed either in serial writer mode (via ICP, In-Circuit Programming) or in In-System Programming
mode. And, it also provides the In-Application Programming (IAP) capability. ICP and ISP allow the user to
download new code without removing the microcontroller from the actual end product; IAP means that the device
can write non-volatile data in the Flash memory while the application program is running. There needs no
external high voltage for programming due to its built-in charge-pumping circuitry.
The MG82FG5BXX retains all features of the standard 80C52 with 256 bytes of scratch-pad RAM, three 8-bit I/O
ports, two external interrupts, a multi-source 4-level interrupt controller, a serial port (UART0) and three
timer/counters. In addition, the MG82FG5BXX has three extra I/O port pins (P4.5, P4.4, P4.1, P4.0, P6.1 and
P6.0), MG82FG5BXX one XRAM of 1792/768 bytes, two extra external interrupts with High/low trigger option,
10-bit ADC, a 8-channel PCA with dead-time controlled PWM, one SPI, two TWIs (TWI0 and TWI1), secondary
serial port (UART1), keypad interrupt, Watchdog Timer, Real-Time-Clock module, two Brown-out Detectors, an
on-chip crystal oscillator(shared with P6.0 and P6.1), an internal high precision oscillator (IHRCO), an on-chip
clock multiplier (CKM) to generate high speed clock source, an internal low speed RC oscillator (ILRCO) and an
enhanced serial function in UART0 that facilitates multiprocessor communication and a speed improvement
mechanism (X2/X4 mode).
The MG82FG5BXX has multiple operating modes to reduce the power consumption: idle mode, power down
mode, slow mode, sub-clock mode, RTC mode, watch mode and monitor mode. In the Idle mode the CPU is
frozen while the peripherals and the interrupt system are still operating. In the Power-Down mode the RAM and
SFRs’ value are saved and all other functions are inoperative; most importantly, in the Power-down mode the
device can be waked up by many interrupt or reset sources. In slow mode, the user can further reduce the power
consumption by using the 8-bit system clock pre-scaler to slow down the operating speed. Or select sub-clock
mode which clock source is derived from internal low speed oscillator (ILRCO) for CPU to perform an ultra low
speed operation. The RTC module supports Real-Time-Clock unction in all modes. In watch mode, it keeps WDT
running in power-down or idle mode and resumes CPU when WDT overflows. Monitor mode provides the Brown-
Out detection in power down mode and resumes CPU when chip VDD reaches the specific detection level.
Additionally, the MG82FG5BXX is equipped with the Megawin proprietary On-Chip Debug (OCD) interface for In-
Circuit Emulator (ICE). The OCD interface provides on-chip and in-system non-intrusive debugging without any
target resource occupied. Several operations necessary for an ICE are supported such as Reset, Run, Stop,
Step, Run to Cursor and Breakpoint Setting. The user has no need to prepare any development board during
firmware developing or the socket adapter used in the traditional ICE probe head. All the thing the user needs to
do is to prepare a connector for the dedicated OCD interface. This powerful feature makes the developing very
easy for any user.
MEGAWIN
MG82FG5BXX Data Sheet
11
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MG82FG5B16.PDF ] | |
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