What is Atmel AT89C51?

Published by Charlie Davidson on

What is Atmel AT89C51?

The Atmel AT89C51 is an 8051-based Fullly Static 24MHz CMOS controller with 32 I/O Lines, 2 Timers/Counters, 6 Interrupts/2 Priority Levels, UART, Three-Level Program Memory Lock, 4K Bytes Flash Memory, 128 Bytes On-chip RAM.

What is the bit size of the 89c51 microcontroller?

The AT89C51 is a low-power, high-performance CMOS 8-bit microcomputer with 4K bytes of Flash programmable and erasable read only memory (PEROM). The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the industry-standard MCS-51 instruction set and pinout.

How many pins does AT89C2051 microcontroller have?

Product Information

Manufacturer Part No AT89C2051-24PU
CPU Speed: 24MHz
Program Memory Size: 2KB
RAM Memory Size: 128Byte
No. of Pins: 20Pins

What is the difference between AT89C51 and at89s51?

The only difference between the the 89c51 and 89s51 is that the 89s51 and all S series chips can be programmed through both the ISP port and parallel port. But the 89c51 can be programmed only through parallel programmer.

Which command is used to select the 2 lines and 5 * 7 matrix of an LCD?

0x38
0x38 is used to select the 2 lines and 5*7 matrix of an LCD.

What is false microcontroller?

Question 2 Which is false about microcontroller? Microcontrollers are used to execute a single task within an application. It consists of CPU, RAM, ROM, I/O ports. Its power consumption is high because it has to control the entire system.

What is AT89S51 microcontroller?

The AT89S51 is a low-power, high-performance CMOS 8-bit microcontroller with 4K bytes of In-System Programmable Flash memory. The device is manufactured using Atmel’s high-density nonvolatile memory technology and is compatible with the indus- try-standard 80C51 instruction set and pinout.

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