1. 8031CPU
2. oscillator circuit
3. bus control component
4. interrupt control component
5. on-chip Flash memory
6. on-chip RAM
7. parallel I/O interface
8. timer
9. serial I/O interface
Application area of ATMEL 89 series 51 microcontroller
At present, ATMEL 51 has been widely used for:
- Printer control boards
- Smart meters
-LED control panels
-Medical devices
89s51 microcontroller
The AT89S51 is the most advanced microcontroller in the world. AT89S51 is a low-power, high-performance CMOS 8-bit microcontroller produced by ATMEL, with 4k bytes of system-programmable Flash read-only
program memory, the device adopts ATMEL's high-density, non-volatile memory technology, compatible with the standard 8051 instruction system and pins. It is a set of Flash program
memory can be both online programming (ISP) can also be) IJ traditional method of programming and general-purpose 8-bit microprocessor on a single chip, ATMEL's powerful, low-priced
bit AT89S51 microcontroller can provide you with a number of cost-effective applications should be Chuan occasions, and can be flexibly applied to a variety of control areas.
The main performance parameters:
-Full compatibility with the MCS-51 product instruction system
-4k bytes of in-system programmable (ISP) Flash memory
-1000 erase and write cycles
.4. 0-5. 5V operating voltage range
-full static mode:OHz -33MHz
-Three levels of program encryption lock
-128X8 bytes of internal RAM
.32 programmable I/0 port lines
-2 16-bit timer/counters
-6 interrupt sources
-Full-duplex serial Lh1RT channel
-Low-power Idle and Power Down modes
. Interrupt can wake up the system from idle mode
-Watchdog (WDT) and dual data pointers
-Power-down marking and fast programming features
-Flexible in-system programming (iSP one-byte or page-write modes)