ATMEGA32A DATASHEET PDF

CPU itself can execute instructions incorrectly, if the supply voltage atmega32a pu datasheet too low. If selected, it will operate with no external Nominal Frequency MHz 1. Two Data Stable All atmrga32a signals are unique for each pin. Algorithm Builder for AVR. TWINT clears the flag.

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High-performance, Low-power AVR? Pin Configurations Figure By executing powerful instructions in a single clock cycle, the ATmega32A achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed.

All the 32 registers are directly connected to the Arithmetic Logic Unit ALU , allowing two independent registers to be accessed in one single instruction executed in one clock cycle.

The resulting architecture is more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers. The Power-down mode saves the register contents but freezes the Oscillator, disabling all other chip functions until the next External Interrupt or Hardware Reset. In Power-save mode, the Asynchronous Timer continues to run, allowing the user to maintain a timer base while the rest of the device is sleeping.

This allows very fast start-up combined with low-power consumption. The boot program can use any interface to download the application program in the Application Flash memory.

Software in the Boot Flash section will continue to run while the Application Flash section is updated, providing true Read-While-Write operation. Port pins can provide internal pull-up resistors selected for each bit. When pins PA0 to PA7 are used as inputs and are externally pulled low, they will source current if the internal pull-up resistors are activated. The Port A pins are tri-stated when a reset condition becomes active, even if the clock is not running.

The Port B output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port B pins that are externally pulled low will source current if the pull-up resistors are activated. The Port B pins are tri-stated when a reset condition becomes active, even if the clock is not running.

Port B also serves the functions of various special features of the ATmega32A as listed on page The Port C output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port C pins that are externally pulled low will source current if the pull-up resistors are activated. The Port C pins are tri-stated when a reset condition becomes active, even if the clock is not running.

The Port D output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port D pins that are externally pulled low will source current if the pull-up resistors are activated. The Port D pins are tri-stated when a reset condition becomes active, even if the clock is not running.

Port D also serves the functions of various special features of the ATmega32A as listed on page A low level on this pin for longer than the minimum pulse length will generate a reset, even if the clock is not running. The minimum pulse length is given in Table on page Shorter pulses are not guaranteed to generate a reset. Note: 1. For compatibility with future devices, reserved bits should be written to zero if accessed.

Some of the Status Flags are cleared by writing a logical one to them. Rr Rd? Load Indirect and Pre-Dec. Store Indirect and Pre-Dec. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information and minimum quantities. Also Halide free and fully Green. Package Type 44A 40P6 44M1 lead, 10 x 10 x 1.

Packaging Information 8. Dimensions D1 and E1 do not include mold protrusion. Allowable protrusion is 0. Dimensions D1 and E1 are maximum plastic body size dimensions including mold mismatch. Lead coplanarity is 0.

Dimensions D and E1 do not include mold Flash or Protrusion. Mold Flash or Protrusion shall not exceed 0. Errata 9. G to rev. First Analog Comparator conversion may be delayed If the device is powered by a slow rising VCC, the first Analog Comparator conversion will take longer than expected on some devices. Interrupts may be lost when writing the timer registers in the asynchronous timer If one of the timer registers which is synchronized to the asynchronous timer2 clock is written in the cycle before a overflow interrupt occurs, the interrupt may be lost.

Data to succeeding devices are replaced by all-ones during Update-DR. Datasheet Revision History Please note that the referring page numbers in this section are referred to this document. The referring revision in this section are referring to the document revision.

No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. Atmel makes no representations or warranties with respect to the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice.

Atmel does not make any commitment to update the information contained herein. Unless specifically provided otherwise, Atmel products are not suitable for, and shall not be used in, automotive applications. All rights reserved. Other terms and product names may be trademarks of others.

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