Introduction to AT89S52 8-bit Microcontroller Architecture Feautures Register mode-pinout Applications
Introduction AT89S52 8-bit Microcontrollers:
The AT89S52 is a low-power supply, 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 or 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 of the programmer. By combining a versatile 8-bit CPU with in-system programmable Flash on a monolithic chip, the Atmel AT89S52 is a powerful microcontroller that provides a highly flexible and cost-effective solution to many embedded control applications.
An 8-bit microcontroller is a small computer that has been made to work like the brain of an 8-bit video game console. The controller could be programmed to do anything, but it needs instructions to know what to do. These instructions are called "code." For a microcontroller to function as it would, it needs code. This code is written in the C programming language or communicates with the components of a system or machine through its pins. The hardware of an 8-bit microcontroller consists of both analog and digital input and output pins. These pins are what allow the controller to interact with the environment around it.
Spceifications:
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Operating Temperature: 40°C-85°C
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Supply Voltage: 5V
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Frequency: 33MHz
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Operating Supply Voltage: 5V
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Power Supplies: 5V
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Voltage - Supply: (Vcc/Vdd)-4V~5.5V
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Supply Current-Max: 25mA
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Terminal Pitch: 2.54mm
AT89S52 8-bit Microcontrollers Pinout Configuration:
1. VCC (pin-20) :Interface 0 is a bidirectional 8-bit open drain I/O port. Each pin can sink eight TTL inputs as an output port. The pins on port 0 can be used as high-impedance inputs when 1s are written to them.
2. GND (pin-25) :During accesses to external programs and data memory, Port 0 can also be set as the multiplexed low-order address/data bus. P0 features internal pull-ups in this mode.
During Flash programming, Port 0 also gets the code bytes and outputs them during program verification. During program verification, external pull-ups are required.
3. MOSI (pin-30) :(used for In-System Programming)In addition, as shown in the table, P1.0 and P1.1 can be set to be the timer/counter 2 external count input (P1.0/T2) and the timer/counter 2 trigger input (P1.1/T2EX), respectively.
During Flash programming and verification, Port 1 also receives the low-order address bytes.
Read Also:
Circuit Operation:
8K bytes of Flash, 256 bytes are provided by the AT89S52 Of RAM, 32 I/O traces, Watchdog timer, 2- data pointers, three 16-bit timer/counters, an Interrupt design, a full duplex serial port, on-chip of an oscillator, clock circuitry. Additionally, the AT89S52 is designed with static logic for operation The Idle Mode stops the CPU while allowing the RAM, timer/counters, serial port, or Interrupt system to continue functioning. The Power supply-down mode saves the RAM contents but freezes the oscillator, disabling all other chip functions until the next interrupt and hardware reset.
40 Pin ic Base or 40-Pin ic Socket DIP Package with 89s52 ic is mostly used for the 8051 Microcontroller of the Development Kit. The AT89S52 is a low-power supply, high-performance CMOS 8-bit microcontroller with 8K bytes of in-system programmable Flash memory because of that AT89S52 ic is used for the 8051 Microcontroller of the Development Kit.
The device is manufactured using Atmel’s high-density nonvolatile memory technology or is compatible with the industry-standard 80C51 instruction set and pinout. Another advantage is that it has on-chip Flash so it allows the program memory to be reprogrammed in-system and by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with in-system programmable Flash on a monolithic chip, As a result, the Atmel AT89S52 is a powerful microcontroller that provides a highly flexible and cost-effective solution to many embedded controls of the applications. Finally, it is a DIP Package So the user can easily remove or install it on the development kit.
Frequently Asked Questions
What is the difference between AT89S52 and AT89C52 microcontroller?
AT89C52 won't support serial programming. AT89S52 supports both serial & parallel programming. 89c52 programmer can not program 89s52 until the software supports it.
Is AT89S52 a 8051 microcontroller?
The AT89C51 is an age-old 8-bit microcontroller from the Atmel family. It works with the popular 8051 architecture and hence is used by most beginners to date.
What are the features of AT89C52?
The Atmel AT89C52 is an 8051-based Fully Static 24MHz CMOS controller with 32 I/O Lines, 3 Timers/Counters, 8 Interrupts/2 Priority Levels, UART, 3-Level Program Memory Lock, 8K Bytes Flash Memory, 128 Bytes On-chip RAM.
What is the meaning of S in the AT89S52 microcontroller?
Here, 89 stands for USB, I2C, and SPI enabled in the Atmel series microcontrollers hence bidirectional. S stands for System of Programming (ISP) programming support, another traditional method is Universal synchronous/asynchronous receiver/ transmitter (USART)
What is the frequency of the AT89S52 microcontroller?
AT89S52-24PI / AT89S52 IC ATMEL 8051 Microcontroller 40 Pin DIP Mount of the Chip 8 Bit Microprocessor 8Kb ISP(in System Programming) Flash Memory Up to 33MHz Clock Frequency of the Speed (PACK OF 1) by Indian Hobby Center.
