ATMEGA Datasheet PDF Download – 8-bit Microcontroller, ATMEGA data sheet. Typical values contained in this datasheet are based on simulations and characterization . The ATmega is % pin compatible with ATmega, and can. ATMEGA 8-bit Microcontroller With 16k Bytes In-system Programmable Flash Features. High-performance, Low-power AVR® 8-bit Microcontroller Advanced.

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Still the following must be kept in mind when the MC Fuse is programmed: The timing requirements for Parallel Programming have been changed. The frequency of the Watchdog Oscillator in ATmega is close to 1.

Atmel’s products are not authorized for use as critical. Scottish Enterprise Technology Park. This means that the selection of Time-out period for the Watchdog Timer in terms of number of WDT Oscillator cycles must be reconsidered when porting the design to ATmega This will increase noise immunity when using high frequencies. Atme l Headquarte rs. Otherwise the system oscillator will continue to run, drawing additional current.

The ATmega has two operating modes selected through the fuse settings. Refer to the data sheet for Atmega1161 for further information. Datasgeet Corp oration Other terms and product agmega161 may be the trademarks of others Printed on recycled paper.


If these status bits were cleared by writing 0xFF to the register in ATmega, this may trigger incorrect behavior when ported to ATmega, since the new control bits will be set.

The only practical problem concerns a loop followed by a two. The loop may consist of a branch.

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When the MC Fuse is unprogrammed, all new features are supported, but porting the code may require more work. Route des Arsenaux When the internal Brown-out Detector is enabled, the device may hang in Reset.

The Wtmega161 has a signature byte different from the one used in ATmega The following bits have changed locations, but have the same functionality when accessed as in ATmega This is in both devices regardless of the clock source and frequency of the atmefa161 clock.

In this case, a dead-lock situation arises. Use external Brown-out Detector and do not enable internal Brown-out Detector. No licenses to patents or other intellectual property of Atmel are granted.

AVR 8-Bit RISC – Data Sheets

See the ATmega data sheet for details. Refer to data atmega1611 for details. Refer to the ATmega data sheet for details on the changed timing. Programming Interface The Parallel Programming algorithm is changed. The calibrated RC Oscillator is assumed to be calibrated to 1. The Company assumes no responsibility for any errors.

TOP does not change the OCx output. In this device, some instructions are not interruptable, and will cause the interrupt.


This means that the following six Interrupt Vectors disappears, and vectors from number 11 to 28 moved up to become vectors number 5 to At certain frequencies and voltages, the store program memory SPM instruction may fail.

Atmel Cor poration makes no warranty for the use of its products, other than those expressly contained in the Company’s standard warranty. Other terms and product names may be the trademarks of others. Otherwise, the error status will be lost. Therefore the status ratasheet must always be read before the UDR Register is read.

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The following features have been added: Note that since the crystal oscillator atmeba161 ATmega does not have a rail-to-rail amplitude, it is not possible to clock other units directly from the XTAL2 pin. The Company assumes no responsibility for any errors which may appear in atemga161 document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein. Printed on recycled paper.

PWM not Phase Correct.