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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AVR Replacing ATmega by ATmega嵌入式开发相关资料下载-EEWORLD下载中心
Other terms and product names may be the trademarks of others Printed on recycled paper. Use external Brown-out Detector and do not enable internal Brown-out Detector. The ATmega has a signature byte different from the one used in ATmega Other terms and product names may be the trademarks of others.
At certain frequencies and voltages, the store program memory SPM instruction may fail.
Refer to the data sheet for ATmega for further information. 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 A dash indicates that the fuse is not present in ATmega Scottish Enterprise Technology Park.
Pointer addresses external memory. The following bits have changed locations, but have the same functionality when accessed as in ATmega Increased Interrupt Latency In ATmega, all instructions are interruptable, and no dead-lock situation atkega161 if a loop is followed by a two-word instruction for the purpose of looping until an interrupt goes active. This is in both devices regardless of the clock source and frequency of the system clock. Make sure this issue is not harmful to the application.
manual – Page 2 – Cristian COPCEA
The calibrated RC Oscillator is assumed to be calibrated to 1. The program counter will be updated with a wrong value. Avoid using the SPM instruction.
Atme l Headquarte rs. When the MC Fuse is unprogrammed, all new features are supported, but porting the code may require more work.
The Company assumes no responsibility for any errors which may appear in this 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. In this case, a dead-lock situation dafasheet. Therefore the status bits must always be read before the UDR Register is read.
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No licenses to patents or other intellectual property of Atmel are granted. Additionally, the electrical characteristics of the ATmega are different including an increase in operating frequency because of a change in process technology. Colorado Springs, CO Otherwise the system oscillator will continue to run, drawing additional current. The following features are not supported when the ATmega is used in the ATmega compatibility mode: When the compatibility mode is used, only non-conflicting enhancements make the part different from the ATmega The loop may consist of a branch.
Route des Arsenaux This will increase noise immunity when using high frequencies. Note that since the crystal oscillator in ATmega does not have a rail-to-rail amplitude, it is not possible to clock other units directly from the XTAL2 pin.
(PDF) ATMEGA161 Datasheet download
When the internal Brown-out Detector dattasheet enabled, the device may hang in Reset. The only practical problem concerns a loop followed by a two. This gives a phase error in the following. Otherwise, the error status will be lost. Atmel’s products are not authorized for use as critical. In assembly, insert a nop instruction immediately after a loop to itself. Atm el O pe ra tions. The following features have been added: Table 4 shows the ATmega compatible fuse settings.
The typical frequency of the Watchdog Oscillator in ATmega is close to 1. Changes to Names The following control bits have changed names, but have the same functionality and placement when accessed atmeega161 in ATmega 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.