AT89S52
| Flash (Kbytes): | 8 |
| ISP: | SPI |
| RAM (Bytes): | 256 |
| F.max (MHz): | 33 |
| Vcc (V): | 4.0-5.5 |
| I/O Pins: | 32 |
| : | PDIP 40 PLCC 44 TQFP 44 |
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8-bit Microcontroller with 8K Bytes In-System Programmable Flash
 | External Brown-out Protection for C51 Microcontrollers with Active High Reset Input (15 pages, updated 11/02) This Application Note shows in detail how to prevent system malfunction during periods of insufficient power supply voltage. | |
|  | In-system Programming with C51 MCU and External Flash (24 pages, updated 01/00) |
| Programming T89C51xx and AT89C51xx with Device Programmers (13 pages, revision D, updated 06/05) | |
| AVR186: Best practices for the PCB layout of Oscillators (4 pages, revision A, updated 3/08) This application note provides guidelines to design the PCB layout in order not to risk failure and unstable oscillator operation. | |
| EMC Improvement Guidelines (17 pages, updated 8/03) | |
| | How to Calculate the Capacitor of the Reset Input of a C51 Microcontroller (8 pages, updated 10/03) This Application Note explains how the reset of the 80C51 microcontroller works when the RST pin is a pure input pin and when the RST input is bi-directional. It gives rules to determine the extra components required to operate the reset function properly. |
Other Related Application Notes | Device Programmers for 8051 Devices (Other, updated 09/07) This Excel spreadsheet provide summary information on device programmers supporting Atmel 8051 microcontrollers | |
| Emulators for 80C51 Devices (Other, updated 11/03) This Excel spreadsheet provide summary information on emulation support for Atmel 80C51 microcontrollers | |
| Package Adapters of 80C51 Devices (Other, updated 10/04) This Excel spreadsheet list available package adapters for Atmel 80C51 microcontrollers | |
Code Examples: | C51 SPI Code Examples |
| C51 Timer0 Code Examples | |
| C51 Timer1 Code Examples | |
| C51 Timer2 Code Examples | |
| C51 UART Code Examples | |
| C51 Watchdog Program Examples | |
Programmer: | AT89ISP |
Reference: | C51 Architecture Reference Utilities |
| Hardware Interface Connection Examples for C51 MCU | |
Software Files: | C51 Include Files for IAR, Keil, Raisonance, Tasking & SDCC Compilers |
