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This Application Note describes how to drive Stepper Motors using the 8051 Microcontrollers.
2002-12-01

(460186)
This Application Note demonstrates interfacing Atmel AT89LP microcontrollers to the Atmel AT25CXX Serial EEPROMs.
2011-06-01

(6719)

Program Examples for 8051 UART
(Revision A, 26 pages)

This Application Note provides to customers C and Assembler program examples for UART.
2004-06-01

(194924)

Program Examples for 8051 Timers
(Revision A, 88 pages)

This Application Note provides to customers C and Assembler program examples for timers.
2004-06-01

(680364)

AT89LP2052/4052 Primer
(Revision A, 18 pages)

... AT89LP Primer Application Note 3658A–MICRO–1/07 Page 2. 2 3658A–MICRO– 1/07 AT89LP2052/4052 Primer Application Note ported. ...
2007-01-01

(224838)

AT89ISP Programmer Cable
(Revision E, 4 pages)

This application note describes usage of the AT89ISP in-system programming cable product.
2006-10-01

(101003)

Digital Filtering with AT89LP6440
(Revision A, 17 pages)

This application note describes FIR and IIR digital filter implementations using the DSP extensions of the Atmel AT89LP3240/6440 microcontroller. Example code is provided for a 23rd order FIR filter a...
2011-05-01

(27458)

... 1. Introduction The purpose of this application note is to help users convert existing designs from AT89C2051/C4051 to AT89LP2052/LP4052. ... Note ...
2008-05-01

(153825)
This application note describes how to emulate the behavior of an on-chip EEPROM using the on-chip Flash data memory of Atmel's AT89LP series of microcontrollers.
2009-10-01

(349367)

This Application Note uses the AT89LP2052 to implement a simple digital thermometer system and is applicable to any AT89LP devices.
2011-06-01

(2545)

The purpose of this application note is to help users replace AT89S52/AT89LS52 directly with AT89LP52.
2010-09-01

(145337)
This Application Note shows how to reconfigure an SRAM based FPGA using a flash based Microcontroller.
1997-12-01


This Application Note describes how to build a low cost A/D converter with the Atmel AT89LP Microcontrollers that have an analog comparator.
2011-06-01

(9177)

This Application Note shows in detail how to prevent system malfunction during periods of insufficient power supply voltage.
2002-11-01

(503373)
This Application Note demonstrates the capability of programming the entire family of Atmel Flash Memories through the usage of a single Atmel Microcontroller.
1997-12-01


This Application Note illustrates a software based Two Wire Interface (TWI) between Atmel AT89LP Microcontrollers and the Atmel AT24CXX type of Serial EEPROMs.
2011-06-01

(6161)

AT89LP ADC Implementation
2012-10-24

(384KB)

AT89LP Flash Data Memory API
(Revision A, 11 pages)

This application note provides an API for accessing the on-chip Flash Data memory of the AT89LP428/828 and AT89LP6440 devices.
2010-01-01

(36458)

This application note explains how an oscillator functions and which methods can be used to check if the oscillation conditions are met in order to ensure a good start-up when power is applied.
2004-07-01

(252537)

Migrating from AT89S52 to AT89LP52
(Revision A, 24 pages)

The purpose of this application note is to help users convert existing designs from AT89S52/AT89LS52 to AT89LP52.
2010-09-01

(385731)
This Application Note details an expandable I/O and memory expansion framework centered around the AT89LP2052 with a software-defined Two-Wire Interface.
2011-06-01

(5096)

This application note provides an overview of 3rd party programming tools that can be used to program Atmel microcontrollers in small and large scale production environments. It also provides suggesti...
2016-10-05

(420KB)
... 4 / 12 4 / 12 4 / 14 Page 3. 3 CAN Application Note 4228B–CAN–01/01 Notes: 1. Separate from 32K Flash. 2. 40 MHz Equivalent in X2 mode. ...
2001-01-01

(518401)
... CAN Microcontrollers Application Note Page 2. 2 T89C51CC02UA Application Note 4230A–CAN–12/02 Interface with UART bootloader ...
2002-12-01

(13880)

... CAN Microcontrollers Application Note Page 2. 2 T89C51CC01UA Application Note 4227A–CAN–12/02 Interface with UART bootloader ...
2002-12-01

(105716)

... CAN Microcontrollers Application Note Page 2. 2 T89C51CC01CA Application Note 4212A–CAN–12/02 Interface with CAN bootloader ...
2002-12-01

(14591)

This application note describes the differences between AT87C51X OTP and AT89C51X Flash Products. The migration from OTP to Flash can be done after comparing the changes in features.
2002-12-01

(212861)
... BSB) – Software Boot Vector (SBV) – Software Security Byte (SSB) Note: Refer to ... Boot Vector (SBV) – Software Security Byte (SSB) Notes: 1. Refer ...
2005-06-01

(219984)

Program Examples for 8051 SPI
(Revision A, 26 pages)

This Application Note provides to customers C and Assembler program examples for SPI.
2004-06-01

(220918)
This Application Note provides C and Assembler program examples for the CAN Interface.
2004-07-01

(200870)

Program Examples for 8051 ADC
(Revision B, 22 pages)

This Application Note provides C and Assembler program examples for the ADC Interface.
2004-10-01

(166593)
The AT8xEB5114 contains an internal serial EEPROM (AT24C02) connected to the microcontroller via two standard ports. This application note aims to help developers take advantage of all the EEPROM. cha...
2005-12-01

(78092)
... This application note explains emulation of the (read/write) code access to Atmel T89C51xx microcontrollers using the Hitex DProbeHS Emulator. ...
2002-05-01

(132416)

This document describes the Atmel Bootloaders for 8051 family processors.
2007-03-01

(77153)
This application note details the differences between AT89C51SND1C and AT83C51SDN1C products, and gives some tips and tricks to the user when migrating from Flash to ROM product from a hardware and fi...
2003-05-01

(75365)
This Application Note provides C and Assembler program examples for the API Interface.
2004-07-01

(179409)
... operations. 8051 Microcontrollers Application Note Page 2. 2 (A)T89C51RB2/ RC2/IC2 Application Note 4220A–8051–12/02 Interface ...
2001-12-01


... application note on Atmel Web site: www.atmel.com. Select Products > Microcontroller > 8051-Architecture > Documentation > Application Notes > ...
2004-06-01

(43566)
This Application Note provides C and Assembler program examples for the Keyboard Interface.
2004-07-01

(165975)

Program Examples for 8051 TWI
(Revision A, 26 pages)

This application note provides C and Assembly program examples for the Two-Wire Interface
2004-07-01

(168125)
This application note is a guide to assist current AT89C5131 & AT89C5131A-L users in converting existing designs to the AT89C5131A-M devices.
2004-11-01

(149357)

AT89S8253 Primer
(Revision B, 20 pages)

... Microcontrollers AT89S8253 Primer Application Note 3655B–MICRO–3/07 Page 2. 2 3655B–MICRO–3/07 AT89S8253 Primer Application Note ...
2007-03-01

(261968)
This application note is a guide to assist current AT89C51RD2/ED2/ID2 users in con-verting existing designs to the AT89C51RE2 devices.
2007-03-01

(85656)
This Application Note describes how to build a PC based programmer for the Atmel family of Microcontrollers
1997-12-01


Flash API for AT89C51RE2
(Revision A, 4 pages)

This application note provides a set of routines to access the embedded flash of the AT89C51RE2. Some of these routines are compatible with the Flash API provided for AT89C51xD2 products.
2007-04-01

(6458)

... 1. Introduction The purpose of this application note is to help users convert existing designs from AT89C2051/C4051 to AT89S2051/S4051. ... Note ...
2005-05-01

(84966)
This Application Note details how to write nonvolatile memories during in-circuit testing operations.
1997-12-01
This Application Note uses the AT89C2051 to implement an imaginary processor with a unique architecture and instruction set.
1997-12-01


This Application Note illustrates the in-circuit programmability of the Atmel AT89C51 Microcontroller.
1997-09-01


This application note describes how to install and use a AT8xC51SNDx device with a Linux ® system.
2005-09-01

(525508)
... Microcontrollers Application Note Rev. ... (1) Note 1. Due to trouble T15 (see T89C51RD2 erratasheet), the write sequence may be executed 3 times. ...
2003-06-01

(218828)
The purpose of this application note is to help users convert existing designs from the classic AT89C51RB2/RC2/RD2/ED2/IC2/ID2 to the single-cycle AT89LP51RB2/RC2/RD2/ED2/IC2/ID2.
2011-10-01

(470625)
This document describes how to implement the USB Mass Storage class (with an example on the AT89C5131A product) and the firmware functions delivered by Atmel.
2005-05-01

(113604)

The AT89S8252 is a low-power, high-performance device featuring 8K bytes of Flash memory (CMOS PEROM), 2K bytes of EEPROM, and a Serial Peripheral Interface (SPI).
1998-03-01
This Application Note illustrates the in-system programmability of the Atmel AT89SXXXX (S-series) Microcontrollers. A method is shown by which an AT89S8252 can be programmed remotely over a standard t...
1997-12-01


This document provides guidelines for integrating a AT85C51SND3Bx high speed USB device controller onto a 4-layer PCB. The material covered can be broken into two main categories: board design guideli...
2006-06-01

(206454)
This Application Note describes differences to be aware of when migrating from the T89C51CC01 and AT89C51CC03 to the AT90CAN32/64/128 Microcontroller.
2005-06-01

(204373)
... Microcontrollers Application Note Rev. 4314A–8051–11/03 Page 2. 2 T89C5115 Application Note 4314A–8051–11/03 Interface with UART ...
2003-11-01


... Microcontrollers Application Note Rev. 4315A–8051–11/03 Page 2. 2 T89C51AC2 Application Note 4315A–8051–11/03 Interface with UART ...
2003-11-01


This application note is a guide to assist T89C51CC01 users in converting existing designs to the AT89C51CC03 devices.
2005-06-01

(188292)
This Application Note illustrates a PC data-acquisition system (DAQ) based around the AT89C2051 architecture.
2003-11-01
This Application Note explains how the reset of the 8051 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 comp...
2003-10-01

(57856)

This application note describes a way to implement the enumeration process on AT8xC5131/32/22 and AT8xC51SND1 products.
2003-10-01

(67185)

This application note is a check list to assist current AT89C5130-31 users in converting existing designs to AT83C5135-36.
2007-04-01

(52916)
This application note describes how to control an ATR2406 with a C51 microcontroller(AT89C5130A for example).
2006-05-01

(169489)
This application note gives the key points for implementation of code banking and bank switching on the 128K bytes Flash memory of the AT89C51RE2 controller with Keil µVision software.
2007-03-01

(198187)
The aim of this document is to help customers to avoid errors that are frequently done in order save efforts and time during hardware debugging sessions. This document relates only to Atmel's 8051 sta...
2007-11-01

(245406)
This application note is a guide to help current Philips® P89C51RB2/RC2/RD2/C660/C662/C664 users convert existing designs to Atmel® AT89C51RB2/RB2/RC2/IC2/RD2/1ED2/ID2.
2006-04-01

(280432)
... 13 P0.2 KBI2 P1.4 GPI4 14 P2.3 MISO P1.6 MISO Flash Microcontrollers Application Note 3617A–MICRO–7/06 Page 2. 2 3617A–MICRO–7/06 ...
2006-07-01

(103165)
... Overview This application note describes the use of the embedded T89C51RD2 bootloader for in-system programming (ISP) in different application ...
Page 1. ANM032 Rev. D (14 Jan. 97) 1 MATRA MHS Description For cost reason using an overtone crystal is 5 to 6 times ...
This document gives information on integrating the Atmel USB HID DLL functions. Simple code examples that demonstrate different types of implementation are given.
2008-07-01

(448746)

EMC Improvement Guidelines
(Revision B, 17 pages)

... Application Note ... Conclusion Most of the EMC improvements detailed in this application note are already known but they are not always applied. ...
2003-08-01
... Note: 1. tSCK is independent of tCLCL. ... Notes: 1. Programming Enable must be the first command issued after entering into programming mode. ...
2006-07-01

(607900)
... This application note describes the basic hardware and software requirements to build such a system based on a C51 product (or C251 product ...
2000-01-01

(7313)

Developers using Keil ìVision IDE and the AT89C51CC01 or AT89C51CC03 microcontrollers can now do OnChip debug as easily as they are using the ìVision IDE simulator. This offers an alternative to the u...
2006-04-01

(553647)
... Application Note Page 2. 2 ... This application note describes how to locate and to lower all these disturbances. Basic Checklist For ADC Resolution ...
2003-08-01

(315016)
... VDDD 256fs AT89C51SND1 Microcontrollers Application Note Page 2. 2 AT89C51SND1 Application Note 4224A–MP3–01/03 ...
2003-01-01

(99460)
The aims of this document are: to describe how to use a specific USB implementation, without developping the corre-sponding USB Host driver. As well as to describe the way to use USB, without writing ...
2006-06-01

(417368)

... This application note demonstrates the use of a matrix keypad including wake up from power–down mode with TSC80251G1 microcontroller. ...
1998-04-01

(7891)

... Note that an embedded program never exits (because there is no operating system to return to). It Page 12. 12 Rev. B - May 5, 1999 Preliminary ...
... It should also be noted that the new Atmel Wireless & Microcontrollers ... clock doubler feature which is described in the application note available on ...
... This application note uses several different Compare/Capture modes available on the PCA to receive or transmit bytes of data. ...
... 1.1. Overview This application note describes the Serial Protocol used to program the Flash code memory of microcontrollers from Atmel Wireless & ...
This document has two main objectives. The first one is to describe how to easily migrate from a RS-232 to the USB into the firmware using the Atmel USB RS232 Virtual COM port library. The second one ...
2004-01-01

(318944)

... It should be noted also that the new TS80C32X2,TS80C52X2 core includes the ... feature which is described in a specific application note: ANM072. ...

USB RF Mouse with nRF24L01
(Revision A, 10 pages)

nRF24L01 is a single chip RF-transceiver intended for applications in the 2.4 GHz ISM band. AT89STK-05 is a high-performance Flash version of the 80C51 single-chip 8-bit microcontrollers with full spe...
2006-05-01

(214267)
... 1. Introduction The goal of this application note is to provide a low cost solution for implementing a second asynchronous serial interface. ...
... 4.1. Code Size Per Function Note : For all Write functions ( Flash and EEPROM Data ), one ram bit is used to save and restore the EA bit state. 4.2. ...
2001-03-01

(11785)

... also noted that the new TS80C31X2 core includes the programmable clock doubler feature that is described in a specific application note: ANM072 ...
nRF24L01 is a single chip RF-transceiver intended for applications in the 2.4 GHz ISM to 2.5 GHz band. AT89C5131A is a high-performance Flash version of the 80C51 single-chip 8-bit micro controllers w...
2006-05-01

(197503)

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