AT89S52 microcontroller

AT89S52 Description

 The AT89S52 microcontroller is a low-power, high-performance CMOS 8-bit microcontroller with 8K bytes of in-system programmable Flash memory. The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry-standard 80C51 instruction set and pinout. The on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with in-system programmable Flash on a monolithic chip, the Atmel AT89S52 microcontroller is a powerful microcontroller which provides a highly-flexible and cost-effective solution to many embedded control applications.

The AT89S52 provides the following standard features: 8K bytes of Flash, 256 bytes of RAM, 32 I/O lines, Watchdog timer, two data pointers, three 16-bit timer/counters, a six-vector two-level interrupt architecture, a full duplex serial port, on-chip oscillator, and clock circuitry. In addition, the AT89S52 microcontroller is designed with static logic for operation down to zero frequency and supports two software selectable power saving modes. The Idle Mode stops the CPU while allowing the RAM, timer/counters, serial port, and interrupt system to continue functioning. The Power-down mode saves the RAM contents but freezes the oscillator, disabling all other chip functions until the next interrupt or hardware reset.

AT89S52 Features

• Compatible with MCS-51Products
• 8K Bytes of In-System Programmable (ISP) Flash Memory
  • Endurance: 10,000 Write/Erase Cycles
• 4.0V to 5.5V Operating Range
• Fully Static Operation: 0 Hz to 33 MHz
• Three-level Program Memory Lock
• 256 x 8-bit Internal RAM
• 32 Programmable I/O Lines
• Three 16-bit Timer/Counters
• Eight Interrupt Sources
• Full Duplex UART Serial Channel
• Low-power Idle and Power-down Modes
• Interrupt Recovery from Power-down Mode
• Watchdog Timer
• Dual Data Pointer
• Power-off Flag
• Fast Programming Time
• Flexible ISP Programming (Byte and Page Mode)
• Green (Pb/Halide-free) Packaging Option

 download data sheet
AT89S52 microcontroller

AT89S52 PDF Datasheet

Pin Configurations

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Best microcontroller

Micro 7.0 is a graphical IDE (Integrated Development Environment) for best microcontroller for beginner is MCS-51 microcontroller family that uses compiler ASEMW.EXE. Thus, the syntax used in syntax ASEMW Micro 7.0 is if it is written using assembly language.

In addition to using assembly language, Micro 7.0 can also use c language to write the program, ie using SDCC.

7.0 Micro integrate editor that comes with a code explorer, code hint, and auto-completion so that the writing of programs easier. And with the simulator, you will be facilitated in understanding the course of the program and at the track program logic error.

Micro 7.0 provides additional features from previous versions that will add convenience you make microcontroller projects. New features include:

* Code Explorer

If we create a variable declaration, then automatically these variables will be listed and will appear in the left panel of each editor. Likewise, the labels we have created, the macro that we make and others.

The list is made in the left pane are sorted alphabetically, not the position. By double-clicking on an object, the cursor will be placed in the position of objects is written.

* Auto Completion

With the auto completion, when we write programs, we will be treated to a choice with the objects we have created. Thus, writing programs can be more quickly and does not easily occur mistyped.

Code completion appears automatically or
can be invoked by Ctrl + Space

Code completion will automatically appear if we create a space, and then part the right to add the code. For example, when we create a space after writing acall, then that will be raised are all labels that have been made. Likewise, if we write mov, then after adding a space, will soon be raised all the variables we have created.

We can also call for code completion appears by pressing Ctrl + Space. If we write programs in C language, the code completion will not appear automatically, we must call him to appear by pressing Ctrl + Space.

*Code Hint

If we make a macro or function on writing C programs, so sometimes we forget what the parameters are owned by the macro or function. When we write a macro or function call, it will automatically appear hint that indicates the parameters that are owned by the macro or function.

Code Hint helps show the parameters in the macro or function.
Appear automatically or can be invoked by pressing
Ctrl + Shift + Space

 And just like code completion, if the code hint does not appear automatically, then we can call him to appear by pressing the Ctrl + Shift + Space.

The most interesting part of the microcontroller Project is the integration with the simulator that can be linked to various programs / other simulators. The ability of a simulator that can be linked to other simulators Best Microcontroller Project makes it very easy for us in designing microcontroller-based systems.

Download Micro 7.0

Source web: www.sulhansetiawan.com

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