ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P 8-bit Atmel Microcontroller with 16/32/64/128K Bytes In-System Programmable Flash DATASHEET SUMMARY Features High-performance, low-power 8-bit Atmel® AVR® Microcontroller Advanced RISC architecture ̶ 131 powerful Instructions – most single-clock cycle execution ̶ 32 × 8 general purpose working registers ̶ Fully static operation ̶ Up to 20MIPS throughput at 20MHz ̶ On-chip 2-cycle multiplier High endurance non-volatile memory segments ̶ 16/32/64/128KBytes of In-System Self-programmable Flash program memory ̶ 512/1K/2K/4KBytes EEPROM ̶ 1/2/4/16KBytes Internal SRAM ̶ Write/Erase Cycles: 10,000 Flash/ 100,000 EEPROM ̶ Data retention: 20 years at 85°C/ 100 years at 25°C(1) ̶ Optional Boot Code Section with Independent Lock Bits In-System Programming by On-chip Boot Program True Read-While-Write Operation ̶ Programming Lock for Software Security Atmel QTouch® library support ̶ Capacitive touch buttons, sliders and wheels ̶ QTouch and QMatrix acquisition ̶ Up to 64 sense channels JTAG (IEEE std. 1149.1 Compliant) Interface ̶ Boundary-scan Capabilities According to the JTAG Standard ̶ Extensive On-chip Debug Support ̶ Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface Peripheral Features ̶ Two 8-bit Timer/Counters with Separate Prescalers and Compare Modes ̶ One/two 16-bit Timer/Counter with Separate Prescaler, Compare Mode, and Capture Mode ̶ Real Time Counter with Separate Oscillator ̶ Six PWM Channels ̶ 8-channel, 10-bit ADC Differential mode with selectable gain at 1×, 10× or 200× ̶ Byte-oriented Two-wire Serial Interface ̶ Two Programmable Serial USART ̶ Master/Slave SPI Serial Interface Atmel-8272GS-AVR-01/2015 ̶ ̶ ̶ Programmable Watchdog Timer with Separate On-chip Oscillator On-chip Analog Comparator Interrupt and Wake-up on Pin Change Special Microcontroller Features ̶ Power-on Reset and Programmable Brown-out Detection ̶ Internal Calibrated RC Oscillator ̶ External and Internal Interrupt Sources ̶ Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby and Extended Standby I/O and Packages ̶ 32 Programmable I/O Lines ̶ 40-pin PDIP, 44-lead TQFP, 44-pad VQFN/QFN/MLF ̶ 44-pad DRQFN – 49-ball VFBGA Note: Operating Voltages ̶ 1.8 - 5.5V Speed Grades ̶ 0 - 4MHz @ 1.8 - 5.5V ̶ 0 - 10MHz @ 2.7 - 5.5V ̶ 0 - 20MHz @ 4.5 - 5.5V Power Consumption at 1MHz, 1.8V, 25C ̶ Active: 0.4mA ̶ Power-down Mode: 0.1µA ̶ Power-save Mode: 0.6µA (Including 32kHz RTC) 1. See ”Data retention” on page 9 for details. ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 2 1. Pin configurations 1.1 Pinout - PDIP/TQFP/VQFN/QFN/MLF for ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P Figure 1-1. Pinout. (PCINT8/XCK0/T0) PB0 (PCINT9/CLKO/T1) PB1 (PCINT10/INT2/AIN0) PB2 (PCINT11/OC0A/AIN1) PB3 (PCINT12/OC0B/SS) PB4 (PCINT13/ICP3/MOSI) PB5 (PCINT14/OC3A/MISO) PB6 (PCINT15/OC3B/SCK) PB7 RESET VCC GND XTAL2 XTAL1 (PCINT24/RXD0/T3*) PD0 (PCINT25/TXD0) PD1 (PCINT26/RXD1/INT0) PD2 (PCINT27/TXD1/INT1) PD3 (PCINT28/XCK1/OC1B) PD4 (PCINT29/OC1A) PD5 (PCINT30/OC2B/ICP) PD6 PA0 (ADC0/PCINT0) PA1 (ADC1/PCINT1) PA2 (ADC2/PCINT2) PA3 (ADC3/PCINT3) PA4 (ADC4/PCINT4) PA5 (ADC5/PCINT5) PA6 (ADC6/PCINT6) PA7 (ADC7/PCINT7) AREF GND AVCC PC7 (TOSC2/PCINT23) PC6 (TOSC1/PCINT22) PC5 (TDI/PCINT21) PC4 (TDO/PCINT20) PC3 (TMS/PCINT19) PC2 (TCK/PCINT18) PC1 (SDA/PCINT17) PC0 (SCL/PCINT16) PD7 (OC2A/PCINT31) PB4 (SS/OC0B/PCINT12) PB3 (AIN1/OC0A/PCINT11) PB2 (AIN0/INT2/PCINT10) PB1 (T1/CLKO/PCINT9) PB0 (XCK0/T0/PCINT8) GND VCC PA0 (ADC0/PCINT0) PA1 (ADC1/PCINT1) PA2 (ADC2/PCINT2) PA3 (ADC3/PCINT3) TQFP/QFN/MLF (PCINT13/ICP3/MOSI) PB5 (PCINT14/OC3A/MISO) PB6 (PCINT15/OC3B/SCK) PB7 RESET VCC GND XTAL2 XTAL1 (PCINT24/RXD0/T3*) PD0 (PCINT25/TXD0) PD1 (PCINT26/RXD1/INT0) PD2 PD3 PD4 PD5 PD6 PD7 VCC GND (PCINT16/SCL) PC0 (PCINT17/SDA) PC1 (PCINT18/TCK) PC2 (PCINT19/TMS) PC3 (PCINT27/TXD1/INT1) (PCINT28/XCK1/OC1B) (PCINT29/OC1A) (PCINT30/OC2B/ICP) (PCINT31/OC2A) *T3 is only available for ATmega1284/1284P PA4 (ADC4/PCINT4) PA5 (ADC5/PCINT5) PA6 (ADC6/PCINT6) PA7 (ADC7/PCINT7) AREF GND AVCC PC7 (TOSC2/PCINT23) PC6 (TOSC1/PCINT22) PC5 (TDI/PCINT21) PC4 (TDO/PCINT20) Note: The large center pad underneath the VQFN/QFN/MLF package should be soldered to ground on the board to ensure good mechanical stability. ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 3 Pinout - DRQFN for Atmel ATmega164A/164PA/324A/324PA Figure 1-2. DRQFN - pinout. Top view Bottom view A18 B1 B15 A17 B2 B14 B3 B4 A2 A3 A4 A5 B5 A18 A1 B15 A17 B1 B14 B2 A16 B13 A16 B13 B3 A15 B12 A15 A2 A3 A4 B4 A14 B12 A14 B11 A13 B11 A13 B5 A5 A6 A12 B10 A11 B9 A10 B8 A9 B7 A8 B6 A7 B8 A10 B9 A11 B10 A12 B7 A9 A8 B6 A6 Table 1-1. A24 B20 A23 B19 A22 B18 A21 B17 A20 B16 A19 A19 B16 A20 B17 A21 B18 A22 B19 A23 B20 A24 A1 A7 1.2 DRQFN - pinout. A1 PB5 A7 PD3 A13 PC4 A19 PA3 B1 PB6 B6 PD4 B11 PC5 B16 PA2 A2 PB7 A8 PD5 A14 PC6 A20 PA1 B2 RESET B7 PD6 B12 PC7 B17 PA0 A3 VCC A9 PD7 A15 AVCC A21 VCC B3 GND B8 VCC B13 GND B18 GND A4 XTAL2 A10 GND A16 AREF A22 PB0 B4 XTAL1 B9 PC0 B14 PA7 B19 PB1 A5 PD0 A11 PC1 A17 PA6 A23 PB2 B5 PD1 B10 PC2 B15 PA5 B20 PB3 A6 PD2 A12 PC3 A18 PA4 A24 PB4 ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 4 1.3 Pinout - VFBGA for Atmel ATmega164A/164PA/324A/324PA Figure 1-3. VFBGA - pinout. Top view 1 3 4 5 6 7 7 6 5 4 3 2 1 A A B B C C D D E E F F G G Table 1-2. 2. 2 Bottom view BGA - pinout. 1 2 3 4 5 6 7 A GND PB4 PB2 GND VCC PA2 GND B PB6 PB5 PB3 PB0 PA0 PA3 PA5 C VCC RESET PB7 PB1 PA1 PA6 AREF D GND XTAL2 PD0 GND PA4 PA7 GND E XTAL1 PD1 PD5 PD7 PC5 PC7 AVCC F PD2 PD3 PD6 PC0 PC2 PC4 PC6 G GND PD4 VCC GND PC1 PC3 GND Overview The Atmel ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed. ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 5 2.1 Block diagram Figure 2-1. Block diagram. PA7..0 PB7..0 VCC RESET GND Power Supervision POR / BOD & RESET PORT A (8) PORT B (8) Watchdog Timer Analog Comparator A/D Converter Watchdog Oscillator USART 0 XTAL1 Oscillator Circuits / Clock Generation EEPROM Internal Bandgap reference XTAL2 SPI 8bit T/C 0 CPU 16bit T/C 1 16bit T/C 1 JTAG/OCD 8bit T/C 2 TWI FLASH SRAM PORT C (8) TOSC2/PC7 TOSC1/PC6 16bit T/C 3* USART 1 PORT D (8) PD7..0 PC5..0 * Only available in ATmega1284/1284P The AVR core combines a rich instruction set with 32 general purpose working registers. 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 Atmel ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P provide the following features: 16/32/64/128Kbytes of In-System Programmable Flash with Read-While-Write capabilities, 512/1K/2K/4Kbytes EEPROM, 1/2/4/16Kbytes SRAM, 32 general purpose I/O lines, 32 general purpose working registers, Real Time Counter (RTC), three (four for ATmega1284/1284P) flexible Timer/Counters with compare modes and PWM, 2 USARTs, a byte oriented two-wire Serial Interface, a 8-channel, 10-bit ADC with optional differential input stage with programmable gain, programmable Watchdog Timer with Internal Oscillator, an SPI serial port, IEEE std. 1149.1 compliant JTAG test interface, also used for accessing the On-chip Debug system and programming and six software selectable power saving modes. The Idle mode stops the CPU while allowing the SRAM, Timer/Counters, SPI port, and interrupt system to continue functioning. The Power-down mode saves the register contents but freezes the Oscillator, disabling all other chip functions until the next interrupt or Hardware Reset. In Power-save mode, the asynchronous timer continues to run, allowing the user to maintain a ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 6 timer base while the rest of the device is sleeping. The ADC Noise Reduction mode stops the CPU and all I/O modules except Asynchronous Timer and ADC, to minimize switching noise during ADC conversions. In Standby mode, the Crystal/Resonator Oscillator is running while the rest of the device is sleeping. This allows very fast start-up combined with low power consumption. In Extended Standby mode, both the main Oscillator and the Asynchronous Timer continue to run. Atmel offers the QTouch® library for embedding capacitive touch buttons, sliders and wheels functionality into AVR microcontrollers. The patented charge-transfer signal acquisition offers robust sensing and includes fully debounced reporting of touch keys and includes Adjacent Key Suppression® (AKS™) technology for unambiguous detection of key events. The easy-to-use QTouch Suite toolchain allows you to explore, develop and debug your own touch applications. The device is manufactured using Atmel’s high-density nonvolatile memory technology. The On-chip ISP Flash allows the program memory to be reprogrammed in-system through an SPI serial interface, by a conventional nonvolatile memory programmer, or by an On-chip Boot program running on the AVR core. 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 ReadWhile-Write operation. By combining an 8-bit RISC CPU with In-System Self-Programmable Flash on a monolithic chip, the Atmel ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P is a powerful microcontroller that provides a highly flexible and cost effective solution to many embedded control applications. The ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P is supported with a full suite of program and system development tools including: C compilers, macro assemblers, program debugger/simulators, in-circuit emulators, and evaluation kits. 2.2 Comparison between ATmega164A, ATmega164PA, ATmega324A, ATmega324PA, ATmega644A, ATmega644PA, ATmega1284 and ATmega1284P Table 2-1. Differences between ATmega164A, ATmega164PA, ATmega324A, ATmega324PA, ATmega644A, ATmega644PA, ATmega1284 and ATmega1284P. Device Flash EEPROM RAM ATmega164A 16K 512 1K ATmega164PA 16K 512 1K ATmega324A 32K 1K 2K ATmega324PA 32K 1K 2K ATmega644A 64K 2K 4K ATmega644PA 64K 2K 4K ATmega1284 128K 4K 16K ATmega1284P 128K 4K 16K 2.3 Pin Descriptions11 2.3.1 VC Units bytes Digital supply voltage. 2.3.2 GND Ground. ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 7 2.3.3 Port A (PA7:PA0) Port A serves as analog inputs to the Analog-to-digital Converter. Port A also serves as an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port A output buffers have symmetrical drive characteristics with both high sink and source capability. As inputs, Port A pins that are externally pulled low will source current if the 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. Port A also serves the functions of various special features of the Atmel ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P as listed on page 79. 2.3.4 Port B (PB7:PB0) Port B is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). 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 tristated 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 ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P as listed on page 80. 2.3.5 Port C (PC7:PC0) Port C is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). 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 tristated when a reset condition becomes active, even if the clock is not running. Port C also serves the functions of the JTAG interface, along with special features of the Atmel ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P as listed on page 83. 2.3.6 Port D (PD7:PD0) Port D is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). 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 tristated 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 ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P as listed on page 86. 2.3.7 RESET Reset input. 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 ”” on page 325. Shorter pulses are not guaranteed to generate a reset. 2.3.8 XTAL1 Input to the inverting Oscillator amplifier and input to the internal clock operating circuit. 2.3.9 XTAL2 Output from the inverting Oscillator amplifier. 2.3.10 AVCC AVCC is the supply voltage pin for Port A and the Analog-to-digital Converter. It should be externally connected to VCC, even if the ADC is not used. If the ADC is used, it should be connected to VCC through a low-pass filter. 2.3.11 AREF This is the analog reference pin for the Analog-to-digital Converter. ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 8 3. Resources A comprehensive set of development tools, application notes and datasheets are available for download on http://www.atmel.com/avr. 4. About code examples This documentation contains simple code examples that briefly show how to use various parts of the device. Be aware that not all C compiler vendors include bit definitions in the header files and interrupt handling in C is compiler dependent. Please confirm with the C compiler documentation for more details. The code examples assume that the part specific header file is included before compilation. For I/O registers located in extended I/O map, "IN", "OUT", "SBIS", "SBIC", "CBI", and "SBI" instructions must be replaced with instructions that allow access to extended I/O. Typically "LDS" and "STS" combined with "SBRS", "SBRC", "SBR", and "CBR". Note: 5. 1. Data retention Reliability Qualification results show that the projected data retention failure rate is much less than 1 PPM over 20 years at 85°C or 100 years at 25°C. 6. Capacitive touch sensing The Atmel QTouch Library provides a simple to use solution to realize touch sensitive interfaces on most Atmel AVR microcontrollers. The QTouch Library includes support for the QTouch and QMatrix acquisition methods. Touch sensing can be added to any application by linking the appropriate Atmel QTouch Library for the AVR Microcontroller. This is done by using a simple set of APIs to define the touch channels and sensors, and then calling the touch sensing API’s to retrieve the channel information and determine the touch sensor states. The QTouch Library is FREE and downloadable from the Atmel website at the following location: www.atmel.com/qtouchlibrary. For implementation details and other information, refer to the Atmel QTouch Library User Guide - also available for download from the Atmel website. ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 9 7. Address Register summary Bit 7 Bit 6 Bit 5 Bit 4 (0xFF) Reserved Name - - - - Bit 3 Bit 2 Bit 1 Bit 0 - - - (0xFE) Reserved - - - - - - - - (0xFD) Reserved - - - - - - - - (0xFC) Reserved - - - - - - - - (0xFB) Reserved - - - - - - - (0xFA) Reserved - - - - - - - (0xF9) Reserved - - - - - - - (0xF8) Reserved - - - - - - - - (0xF7) Reserved - - - - - - - - (0xF6) Reserved - - - - - - - - (0xF5) Reserved - - - - - - - (0xF4) Reserved - - - - - - - - (0xF3) Reserved - - - - - - - - (0xF2) Reserved - - - - - - - - (0xF1) Reserved - - - - - - - (0xF0) Reserved - - - - - - - (0xEF) Reserved - - - - - - - (0xEE) Reserved - - - - - - - - (0xED) Reserved - - - - - - - - (0xEC) Reserved - - - - - - - - (0xEB) Reserved - - - - - - - (0xEA) Reserved - - - - - - - - (0xE9) Reserved - - - - - - - - (0xE8) Reserved - - - - - - - - (0xE7) Reserved - - - - - - - (0xE6) Reserved - - - - - - - - (0xE5) Reserved - - - - - - - - (0xE4) Reserved - - - - - - - - (0xE3) Reserved - - - - - - - (0xE2) Reserved - - - - - - - (0xE1) Reserved - - - - - - - (0xE0) Reserved - - - - - - - (0xDF) Reserved - - - - - - - - (0xDE) Reserved - - - - - - - - (0xDD) Reserved - - - - - - - - (0xDC) Reserved - - - - - - - (0xDB) Reserved - - - - - - - - (0xDA) Reserved - - - - - - - - (0xD9) Reserved - - - - - - - - (0xD8) Reserved - - - - - - - - (0xD7) Reserved - - - - - - - - (0xD6) Reserved - - - - - - - - (0xD5) Reserved - - - - - - - - (0xD4) Reserved - - - - - - - - (0xD3) Reserved - - - - - - - - (0xD2) Reserved - - - - - - - - (0xD1) Reserved - - - - - - - - (0xD0) Reserved - - - - - - - - (0xCF) Reserved - - - - - - - - (0xCE) UDR1 (0xCD) UBRR1H (0xCC) UBRR1L (0xCB) - - - USART1 I/O Data Register - - - Reserved - - - (0xCA) UCSR1C UMSEL11 UMSEL10 (0xC9) UCSR1B RXCIE1 TXCIE1 (0xC8) UCSR1A RXC1 TXC1 (0xC7) Reserved - (0xC6) UDR0 (0xC5) UBRR0H (0xC4) UBRR0L (0xC3) - Page 185 USART1 Baud Rate Register High Byte 189/202 USART1 Baud Rate Register Low Byte 189/202 - - - - - UPM11 UPM10 USBS1 UCSZ11/UDORD0(5) UCSZ10/UCPHA0(5) UCPOL1 187/201 UDRIE1 RXEN1 TXEN1 UCSZ12 RXB81 TXB81 186/200 UDRE1 FE1 DOR1 UPE1 U2X1 MPCM1 185/200 - - - - - - - - - - - Reserved - - - (0xC2) UCSR0C UMSEL01 UMSEL00 (0xC1) UCSR0B RXCIE0 TXCIE0 USART0 I/O Data Register 185 USART0 Baud Rate Register High Byte 189/202 USART0 Baud Rate Register Low Byte 189/202 - - - - - UPM01 UPM00 USBS0 UCSZ01/UDORD0(5) UCSZ00/UCPHA0(5) UCPOL0 187/201 UDRIE0 RXEN0 TXEN0 UCSZ02 RXB80 TXB80 186/200 ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 10 Address Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Page (0xC0) UCSR0A Name RXC0 TXC0 UDRE0 FE0 DOR0 UPE0 U2X0 MPCM0 185/200 (0xBF) Reserved - - - - - - - - (0xBE) Reserved - - - - - - - - (0xBD) TWAMR TWAM6 TWAM5 TWAM4 TWAM3 TWAM2 TWAM1 TWAM0 - 231 (0xBC) TWCR TWINT TWEA TWSTA TWSTO TWWC TWEN - TWIE 228 (0xBB) TWDR (0xBA) TWAR TWA6 TWA5 TWA4 TWA3 TWA2 TWA1 TWA0 TWGCE 231 (0xB9) TWSR TWS7 TWS6 TWS5 TWS4 TWS3 - TWPS1 TWPS0 229 two-wire Serial Interface Data Register 230 (0xB8) TWBR (0xB7) Reserved - - - two-wire Serial Interface Bit Rate Register - - - - - 228 (0xB6) ASSR - EXCLK AS2 TCN2UB OCR2AUB OCR2BUB TCR2AUB TCR2BUB (0xB5) Reserved - - - - - - - - (0xB4) OCR2B Timer/Counter2 Output Compare Register B (0xB3) OCR2A Timer/Counter2 Output Compare Register A 155 (0xB2) TCNT2 Timer/Counter2 (8 Bit) 154 155 155 (0xB1) TCCR2B FOC2A FOC2B - - WGM22 CS22 CS21 CS20 153 (0xB0) TCCR2A COM2A1 COM2A0 COM2B1 COM2B0 - - WGM21 WGM20 151 (0xAF) Reserved - - - - - - - - (0xAE) Reserved - - - - - - - - (0xAD) Reserved - - - - - - - - (0xAC) Reserved - - - - - - - - (0xAB) Reserved - - - - - - - - (0xAA) Reserved - - - - - - - - (0xA9) Reserved - - - - - - - - (0xA8) Reserved - - - - - - - - (0xA7) Reserved - - - - - - - - (0xA6) Reserved - - - - - - - - (0xA5) Reserved - - - - - - - - (0xA4) Reserved - - - - - - - - (0xA3) Reserved - - - - - - - - (0xA2) Reserved - - - - - - - - (0xA1) Reserved - - - - - - - - (0xA0) Reserved - - - - - - - - (0x9F) Reserved - - - - - - - - (0x9E) Reserved - - - - - - - - (0x9D) Reserved - - - - - - - - (0x9C) Reserved - - - - - - - - (0x9B) OCR3BH Timer/Counter3 - Output Compare Register B High Byte(7) 132 (0x9A) OCR3BL Timer/Counter3 - Output Compare Register B Low Byte(7) 132 (0x99) OCR3AH Timer/Counter3 - Output Compare Register A High Byte(7) 132 (0x98) OCR3AL Timer/Counter3 - Output Compare Register A Low Byte(7) 132 (0x97) ICR3H Timer/Counter3 - Input Capture Register High Byte(7) 133 (0x96) ICR3L Timer/Counter3 - Input Capture Register Low Byte(7) 133 (0x95) TCNT3H Timer/Counter3 - Counter Register High Byte(7) 132 (0x94) TCNT3L Timer/Counter3 - Counter Register Low Byte(7) (0x93) Reserved - - - (0x92) TCCR3C FOC3A FOC3B - - - - - - 131 (0x91) TCCR3B ICNC3 ICES3 - WGM33 WGM32 CS32 CS31 CS30 130 (0x90) TCCR3A COM3A1 COM3A0 COM3B1 COM3B0 - - WGM31 WGM30 128 (0x8F) Reserved - - - - - - - - - - - 132 - - (0x8E) Reserved - - - - - - - - (0x8D) Reserved - - - - - - - - (0x8C) Reserved - - - - - - - - (0x8B) OCR1BH Timer/Counter1 - Output Compare Register B High Byte 132 (0x8A) OCR1BL Timer/Counter1 - Output Compare Register B Low Byte 132 (0x89) OCR1AH Timer/Counter1 - Output Compare Register A High Byte 132 (0x88) OCR1AL Timer/Counter1 - Output Compare Register A Low Byte 132 (0x87) ICR1H Timer/Counter1 - Input Capture Register High Byte 133 (0x86) ICR1L Timer/Counter1 - Input Capture Register Low Byte 133 (0x85) TCNT1H Timer/Counter1 - Counter Register High Byte 132 (0x84) TCNT1L Timer/Counter1 - Counter Register Low Byte (0x83) Reserved - - - (0x82) TCCR1C FOC1A FOC1B - - - - - - 131 (0x81) TCCR1B ICNC1 ICES1 - WGM13 WGM12 CS12 CS11 CS10 130 (0x80) TCCR1A COM1A1 COM1A0 COM1B1 COM1B0 - - WGM11 WGM10 128 (0x7F) DIDR1 - - - - - - AIN1D AIN0D 234 (0x7E) DIDR0 ADC7D ADC6D ADC5D ADC4D ADC3D ADC2D ADC1D ADC0D 253 (0x7D) Reserved - - - - - - - - - - - 132 - - ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 11 Address Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Page (0x7C) ADMUX Name REFS1 REFS0 ADLAR MUX4 MUX3 MUX2 MUX1 MUX0 249 (0x7B) ADCSRB - ACME - - - ADTS2 ADTS1 ADTS0 233 (0x7A) ADCSRA ADEN ADSC ADATE ADIF ADIE ADPS2 ADPS1 ADPS0 250 (0x79) ADCH ADC Data Register High byte (0x78) ADCL ADC Data Register Low byte (0x77) Reserved - - - - - - - - (0x76) Reserved - - - - - - - - (0x75) Reserved - - - - - - - - (0x74) Reserved - - - - - - - - (0x73) PCMSK3 PCINT31 PCINT30 PCINT29 PCINT28 PCINT27 PCINT26 PCINT25 PCINT24 (0x72) Reserved - - - - - - - - (0x71) TIMSK3 - - ICIE3 - - OCIE3B OCIE3A TOIE3 134 (0x70) TIMSK2 - - - - - OCIE2B OCIE2A TOIE2 156 (0x6F) TIMSK1 - - ICIE1 - - OCIE1B OCIE1A TOIE1 134 (0x6E) TIMSK0 - - - - - OCIE0B OCIE0A TOIE0 105 (0x6D) PCMSK2 PCINT23 PCINT22 PCINT21 PCINT20 PCINT19 PCINT18 PCINT17 PCINT16 70 (0x6C) PCMSK1 PCINT15 PCINT14 PCINT13 PCINT12 PCINT11 PCINT10 PCINT9 PCINT8 70 (0x6B) PCMSK0 PCINT7 PCINT6 PCINT5 PCINT4 PCINT3 PCINT2 PCINT1 PCINT0 71 (0x6A) Reserved - - - - - - - - (0x69) EICRA - - ISC21 ISC20 ISC11 ISC10 ISC01 ISC00 67 (0x68) PCICR - - - - PCIE3 PCIE2 PCIE1 PCIE0 69 (0x67) Reserved - - - - - - - - 251 251 Oscillator Calibration Register 70 (0x66) OSCCAL (0x65) PRR1 - - - - - - - --PRTIM3 40 49 (0x64) PRR0 PRTWI PRTIM2 PRTIM0 PRUSART1 PRTIM1 PRSPI PRUSART0 PRADC 48 (0x63) Reserved - - - - - - - - (0x62) Reserved (0x61) CLKPR (0x60) WDTCSR - - - - - - - - CLKPCE - - - CLKPS3 CLKPS2 CLKPS1 CLKPS0 40 WDIF WDIE WDP3 WDCE WDE WDP2 WDP1 WDP0 59 I T H S V N Z C 11 0x3F (0x5F) SREG 0x3E (0x5E) SPH SP15 SP14 SP13 SP12 SP11 SP10 SP9 SP8 12 0x3D (0x5D) SPL SP7 SP6 SP5 SP4 SP3 SP2 SP1 SP0 12 0x3C (0x5C) Reserved - - - - - - - - 0x3B (0x5B) Reserved - - - - - - - - 0x3A (0x5A) Reserved - - - - - - - - 0x39 (0x59) Reserved - - - - - - - - 0x38 (0x58) Reserved - - - - - - - - 0x37 (0x57) SPMCSR SPMIE RWWSB SIGRD RWWSRE BLBSET PGWRT PGERS SPMEN 0x36 (0x56) Reserved - - - - - - - - 0x35 (0x55) MCUCR JTD BODS(6) BODSE(6) PUD - - IVSEL IVCE 89/268 0x34 (0x54) MCUSR - - - JTRF WDRF BORF EXTRF PORF 58/268 0x33 (0x53) SMCR - - - - SM2 SM1 SM0 SE 47 0x32 (0x52) Reserved - - - - - - - - 0x31 (0x51) OCDR 0x30 (0x50) ACSR ACD ACBG ACO ACI ACIE ACIC ACIS1 ACIS0 0x2F (0x4F) Reserved - - - - - - - - On-Chip Debug Register 285 259 SPI 0 Data Register 250 0x2E (0x4E) SPDR 0x2D (0x4D) SPSR SPIF0 WCOL0 - - - - - SPI2X0 165 0x2C (0x4C) SPCR SPIE0 SPE0 DORD0 MSTR0 CPOL0 CPHA0 SPR01 SPR00 164 0x2B (0x4B) GPIOR2 General Purpose I/O Register 2 0x2A (0x4A) GPIOR1 General Purpose I/O Register 1 0x29 (0x49) Reserved 0x28 (0x48) OCR0B Timer/Counter0 Output Compare Register B 105 0x27 (0x47) OCR0A Timer/Counter0 Output Compare Register A 105 0x26 (0x46) TCNT0 Timer/Counter0 (8 Bit) 0x25 (0x45) TCCR0B FOC0A FOC0B - - WGM02 CS02 CS01 CS00 104 0x24 (0x44) TCCR0A COM0A1 COM0A0 COM0B1 COM0B0 - - WGM01 WGM00 105 0x23 (0x43) GTCCR TSM - - - - - PSRASY PSRSYNC 157 0x22 (0x42) EEARH - - - - 0x21 (0x41) EEARL EEPROM Address Register Low Byte 0x20 (0x40) EEDR EEPROM Data Register 0x1F (0x3F) EECR 0x1E (0x3E) GPIOR0 0x1D (0x3D) EIMSK - - - - - 0x1C (0x3C) EIFR - - - - 0x1B (0x3B) PCIFR - - - 0x1A (0x3A) Reserved - - 0x19 (0x39) Reserved - - - - - - - EEPM1 - 166 29 29 - - - - 105 EEPROM Address Register High Byte EEPM0 EERIE 24 24 24 EEMPE EEPE EERE INT2 INT1 INT0 68 - INTF2 INTF1 INTF0 68 - PCIF3 PCIF2 PCIF1 PCIF0 69 - - - - - - - - - - - - General Purpose I/O Register 0 24 29 ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 12 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Page 0x18 (0x38) Address TIFR3 Name - - ICF3 - - OCF3B OCF3A TOV3 136 0x17 (0x37) TIFR2 - - - - - OCF2B OCF2A TOV2 156 0x16 (0x36) TIFR1 - - ICF1 - - OCF1B OCF1A TOV1 135 0x15 (0x35) TIFR0 - - - - - OCF0B OCF0A TOV0 106 0x14 (0x34) Reserved - - - - - - - - 0x13 (0x33) Reserved - - - - - - - - 0x12 (0x32) Reserved - - - - - - - - 0x11 (0x31) Reserved - - - - - - - - 0x10 (0x30) Reserved - - - - - - - - 0x0F (0x2F) Reserved - - - - - - - - 0x0E (0x2E) Reserved - - - - - - - - 0x0D (0x2D) Reserved - - - - - - - - 0x0C (0x2C) Reserved - - - - - - - - 0x0B (0x2B) PORTD PORTD7 PORTD6 PORTD5 PORTD4 PORTD3 PORTD2 PORTD1 PORTD0 90 0x0A (0x2A) DDRD DDD7 DDD6 DDD5 DDD4 DDD3 DDD2 DDD1 DDD0 90 0x09 (0x29) PIND PIND7 PIND6 PIND5 PIND4 PIND3 PIND2 PIND1 PIND0 90 0x08 (0x28) PORTC PORTC7 PORTC6 PORTC5 PORTC4 PORTC3 PORTC2 PORTC1 PORTC0 90 0x07 (0x27) DDRC DDC7 DDC6 DDC5 DDC4 DDC3 DDC2 DDC1 DDC0 90 0x06 (0x26) PINC PINC7 PINC6 PINC5 PINC4 PINC3 PINC2 PINC1 PINC0 90 0x05 (0x25) PORTB PORTB7 PORTB6 PORTB5 PORTB4 PORTB3 PORTB2 PORTB1 PORTB0 89 0x04 (0x24) DDRB DDB7 DDB6 DDB5 DDB4 DDB3 DDB2 DDB1 DDB0 89 0x03 (0x23) PINB PINB7 PINB6 PINB5 PINB4 PINB3 PINB2 PINB1 PINB0 90 0x02 (0x22) PORTA PORTA7 PORTA6 PORTA5 PORTA4 PORTA3 PORTA2 PORTA1 PORTA0 89 0x01 (0x21) DDRA DDA7 DDA6 DDA5 DDA4 DDA3 DDA2 DDA1 DDA0 89 0x00 (0x20) PINA PINA7 PINA6 PINA5 PINA4 PINA3 PINA2 PINA1 PINA0 89 Notes: 1. For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory addresses should never be written. 2. I/O registers within the address range $00 - $1F are directly bit-accessible using the SBI and CBI instructions. In these registers, the value of single bits can be checked by using the SBIS and SBIC instructions. 3. Some of the status flags are cleared by writing a logical one to them. Note that the CBI and SBI instructions will operate on all bits in the I/O register, writing a one back into any flag read as set, thus clearing the flag. The CBI and SBI instructions work with registers 0x00 to 0x1F only. 4. When using the I/O specific commands IN and OUT, the I/O addresses $00 - $3F must be used. When addressing I/O registers as data space using LD and ST instructions, $20 must be added to these addresses. The ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P is a complex microcontroller with more peripheral units than can be supported within the 64 location reserved in Opcode for the IN and OUT instructions. For the Extended I/O space from $60 - $FF, only the ST/STS/STD and LD/LDS/LDD instructions can be used. 5. USART in SPI Master Mode. 6. Only available in the ATmega164PA/324PA/644PA/1284P. 7. Only available in the ATmega1284/1284P ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 13 8. Instruction set summary Mnemonics Operands Description Operation Flags #Clocks ARITHMETIC AND LOGIC INSTRUCTIONS ADD Rd, Rr Add two Registers Rd Rd + Rr Z,C,N,V,H 1 ADC Rd, Rr Add with Carry two Registers Rd Rd + Rr + C Z,C,N,V,H 1 2 ADIW Rdl,K Add Immediate to Word Rdh:Rdl Rdh:Rdl + K Z,C,N,V,S SUB Rd, Rr Subtract two Registers Rd Rd - Rr Z,C,N,V,H 1 SUBI Rd, K Subtract Constant from Register Rd Rd - K Z,C,N,V,H 1 SBC Rd, Rr Subtract with Carry two Registers Rd Rd - Rr - C Z,C,N,V,H 1 SBCI Rd, K Subtract with Carry Constant from Reg. Rd Rd - K - C Z,C,N,V,H 1 SBIW Rdl,K Subtract Immediate from Word Rdh:Rdl Rdh:Rdl - K Z,C,N,V,S 2 AND Rd, Rr Logical AND Registers Rd Rd Rr Z,N,V 1 ANDI Rd, K Logical AND Register and Constant Rd Rd K Z,N,V 1 OR Rd, Rr Logical OR Registers Rd Rd v Rr Z,N,V 1 ORI Rd, K Logical OR Register and Constant Rd Rd v K Z,N,V 1 EOR Rd, Rr Exclusive OR Registers Rd Rd Rr Z,N,V 1 COM Rd One’s Complement Rd 0xFF Rd Z,C,N,V 1 NEG Rd Two’s Complement Rd 0x00 Rd Z,C,N,V,H 1 SBR Rd,K Set Bit(s) in Register Rd Rd v K Z,N,V 1 CBR Rd,K Clear Bit(s) in Register Rd Rd (0xFF - K) Z,N,V 1 INC Rd Increment Rd Rd + 1 Z,N,V 1 DEC Rd Decrement Rd Rd 1 Z,N,V 1 TST Rd Test for Zero or Minus Rd Rd Rd Z,N,V 1 CLR Rd Clear Register Rd Rd Rd Z,N,V 1 SER Rd Set Register Rd 0xFF None 1 MUL Rd, Rr Multiply Unsigned R1:R0 Rd x Rr Z,C 2 MULS Rd, Rr Multiply Signed R1:R0 Rd x Rr Z,C 2 MULSU Rd, Rr Multiply Signed with Unsigned R1:R0 Rd x Rr Z,C 2 FMUL Rd, Rr Fractional Multiply Unsigned R1:R0 (Rd x Rr) << 1 Z,C 2 FMULS Rd, Rr Fractional Multiply Signed R1:R0 (Rd x Rr) << 1 Z,C 2 FMULSU Rd, Rr Fractional Multiply Signed with Unsigned R1:R0 (Rd x Rr) << 1 Z,C 2 Relative Jump PC PC + k + 1 None 2 Indirect Jump to (Z) PC Z None 2 3 BRANCH INSTRUCTIONS RJMP k IJMP JMP k Direct Jump PC k None RCALL k Relative Subroutine Call PC PC + k + 1 None 3 Indirect Call to (Z) PC Z None 3 ICALL CALL k RET Direct Subroutine Call PC k None 4 Subroutine Return PC STACK None 4 Interrupt Return PC STACK I CPSE Rd,Rr Compare, Skip if Equal if (Rd = Rr) PC PC + 2 or 3 None CP Rd,Rr Compare Rd Rr Z, N,V,C,H 1 CPC Rd,Rr Compare with Carry Rd Rr C Z, N,V,C,H 1 CPI Rd,K Compare Register with Immediate Rd K Z, N,V,C,H SBRC Rr, b Skip if Bit in Register Cleared if (Rr(b)=0) PC PC + 2 or 3 None RETI 4 1/2/3 1 1/2/3 SBRS Rr, b Skip if Bit in Register is Set if (Rr(b)=1) PC PC + 2 or 3 None 1/2/3 SBIC P, b Skip if Bit in I/O Register Cleared if (P(b)=0) PC PC + 2 or 3 None 1/2/3 SBIS P, b Skip if Bit in I/O Register is Set if (P(b)=1) PC PC + 2 or 3 None 1/2/3 BRBS s, k Branch if Status Flag Set if (SREG(s) = 1) then PCPC+k + 1 None 1/2 BRBC s, k Branch if Status Flag Cleared if (SREG(s) = 0) then PCPC+k + 1 None 1/2 BREQ k Branch if Equal if (Z = 1) then PC PC + k + 1 None 1/2 BRNE k Branch if Not Equal if (Z = 0) then PC PC + k + 1 None 1/2 BRCS k Branch if Carry Set if (C = 1) then PC PC + k + 1 None 1/2 BRCC k Branch if Carry Cleared if (C = 0) then PC PC + k + 1 None 1/2 BRSH k Branch if Same or Higher if (C = 0) then PC PC + k + 1 None 1/2 BRLO k Branch if Lower if (C = 1) then PC PC + k + 1 None 1/2 BRMI k Branch if Minus if (N = 1) then PC PC + k + 1 None 1/2 BRPL k Branch if Plus if (N = 0) then PC PC + k + 1 None 1/2 BRGE k Branch if Greater or Equal, Signed if (N V= 0) then PC PC + k + 1 None 1/2 BRLT k Branch if Less Than Zero, Signed if (N V= 1) then PC PC + k + 1 None 1/2 BRHS k Branch if Half Carry Flag Set if (H = 1) then PC PC + k + 1 None 1/2 BRHC k Branch if Half Carry Flag Cleared if (H = 0) then PC PC + k + 1 None 1/2 BRTS k Branch if T Flag Set if (T = 1) then PC PC + k + 1 None 1/2 BRTC k Branch if T Flag Cleared if (T = 0) then PC PC + k + 1 None 1/2 BRVS k Branch if Overflow Flag is Set if (V = 1) then PC PC + k + 1 None 1/2 ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 14 Mnemonics Operands Description Operation Flags #Clocks BRVC k Branch if Overflow Flag is Cleared if (V = 0) then PC PC + k + 1 None 1/2 BRIE k Branch if Interrupt Enabled if ( I = 1) then PC PC + k + 1 None 1/2 BRID k Branch if Interrupt Disabled if ( I = 0) then PC PC + k + 1 None 1/2 BIT AND BIT-TEST INSTRUCTIONS SBI P,b Set Bit in I/O Register I/O(P,b) 1 None 2 CBI P,b Clear Bit in I/O Register I/O(P,b) 0 None 2 LSL Rd Logical Shift Left Rd(n+1) Rd(n), Rd(0) 0 Z,C,N,V 1 LSR Rd Logical Shift Right Rd(n) Rd(n+1), Rd(7) 0 Z,C,N,V 1 ROL Rd Rotate Left Through Carry Rd(0)C,Rd(n+1) Rd(n),CRd(7) Z,C,N,V 1 ROR Rd Rotate Right Through Carry Rd(7)C,Rd(n) Rd(n+1),CRd(0) Z,C,N,V 1 ASR Rd Arithmetic Shift Right Rd(n) Rd(n+1), n=0..6 Z,C,N,V 1 SWAP Rd Swap Nibbles Rd(3..0)Rd(7..4),Rd(7..4)Rd(3..0) None 1 BSET s Flag Set SREG(s) 1 SREG(s) 1 BCLR s Flag Clear SREG(s) 0 SREG(s) 1 BST Rr, b Bit Store from Register to T T Rr(b) T 1 BLD Rd, b Bit load from T to Register Rd(b) T None 1 SEC Set Carry C1 C 1 CLC Clear Carry C0 C 1 SEN Set Negative Flag N1 N 1 CLN Clear Negative Flag N0 N 1 SEZ Set Zero Flag Z1 Z 1 CLZ Clear Zero Flag Z0 Z 1 SEI Global Interrupt Enable I1 I 1 CLI Global Interrupt Disable I 0 I 1 SES Set Signed Test Flag S1 S 1 CLS Clear Signed Test Flag S0 S 1 SEV Set Twos Complement Overflow. V1 V 1 CLV Clear Twos Complement Overflow V0 V 1 SET Set T in SREG T1 T 1 CLT Clear T in SREG T0 T 1 SEH CLH Set Half Carry Flag in SREG Clear Half Carry Flag in SREG H1 H0 H H 1 1 Rd Rr Rd+1:Rd Rr+1:Rr None 1 None 1 DATA TRANSFER INSTRUCTIONS MOV Rd, Rr Move Between Registers MOVW Rd, Rr Copy Register Word LDI Rd, K Load Immediate Rd K None 1 LD Rd, X Load Indirect Rd (X) None 2 LD Rd, X+ Load Indirect and Post-Inc. Rd (X), X X + 1 None 2 LD Rd, - X Load Indirect and Pre-Dec. X X - 1, Rd (X) None 2 LD Rd, Y Load Indirect Rd (Y) None 2 LD Rd, Y+ Load Indirect and Post-Inc. Rd (Y), Y Y + 1 None 2 LD Rd, - Y Load Indirect and Pre-Dec. Y Y - 1, Rd (Y) None 2 LDD Rd,Y+q Load Indirect with Displacement Rd (Y + q) None 2 LD Rd, Z Load Indirect Rd (Z) None 2 LD Rd, Z+ Load Indirect and Post-Inc. Rd (Z), Z Z+1 None 2 LD Rd, -Z Load Indirect and Pre-Dec. Z Z - 1, Rd (Z) None 2 LDD Rd, Z+q Load Indirect with Displacement Rd (Z + q) None 2 LDS Rd, k Load Direct from SRAM Rd (k) None 2 ST X, Rr Store Indirect (X) Rr None 2 ST X+, Rr Store Indirect and Post-Inc. (X) Rr, X X + 1 None 2 ST - X, Rr Store Indirect and Pre-Dec. X X - 1, (X) Rr None 2 ST Y, Rr Store Indirect (Y) Rr None 2 ST Y+, Rr Store Indirect and Post-Inc. (Y) Rr, Y Y + 1 None 2 ST - Y, Rr Store Indirect and Pre-Dec. Y Y - 1, (Y) Rr None 2 STD Y+q,Rr Store Indirect with Displacement (Y + q) Rr None 2 ST Z, Rr Store Indirect (Z) Rr None 2 ST Z+, Rr Store Indirect and Post-Inc. (Z) Rr, Z Z + 1 None 2 ST -Z, Rr Store Indirect and Pre-Dec. Z Z - 1, (Z) Rr None 2 STD Z+q,Rr Store Indirect with Displacement (Z + q) Rr None 2 STS k, Rr Store Direct to SRAM (k) Rr None 2 Load Program Memory R0 (Z) None 3 LPM Rd, Z Load Program Memory Rd (Z) None 3 LPM Rd, Z+ Load Program Memory and Post-Inc Rd (Z), Z Z+1 None 3 Store Program Memory (Z) R1:R0 None - In Port Rd P None 1 1 LPM SPM IN Rd, P OUT P, Rr Out Port P Rr None PUSH Rr Push Register on Stack STACK Rr None 2 POP Rd Pop Register from Stack Rd STACK None 2 ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 15 Mnemonics Operands Description Operation Flags #Clocks MCU CONTROL INSTRUCTIONS NOP No Operation None 1 SLEEP Sleep (see specific descr. for Sleep function) None 1 WDR BREAK Watchdog Reset Break (see specific descr. for WDR/timer) For On-chip Debug Only None None 1 N/A ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 16 9. Ordering information 9.1 Atmel ATmega164A Speed [MHz] (3) 20 Notes: Power supply 1.8 - 5.5V Ordering code (2) ATmega164A-AU ATmega164A-AUR(5) ATmega164A-PU ATmega164A-MU ATmega164A-MUR(5) ATmega164A-MCH(4) ATmega164A-MCHR(4)(5) ATmega164A-CU ATmega164A-CUR(5) Package (1) 44A 44A 40P6 44M1 44M1 44MC 44MC 49C2 49C2 Operational range Industrial (-40oC to 85oC) 1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information and minimum quantities. 2. Pb-free packaging, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also Halide free and fully Green. 3. For Speed vs. VCC see ”Speed grades” on page 324. 4. NiPdAu Lead Finish. 5. Tape & Reel. Package Type 44A 44-lead, Thin (1.0mm) Plastic Gull Wing Quad Flat Package (TQFP) 40P6 40-pin, 0.600” Wide, Plastic Dual Inline Package (PDIP) 44M1 44-pad, 7 × 7 × 1.0mm body, lead pitch 0.50mm, Thermally Enhanced Plastic Very Thin Quad Flat No-Lead (VQFN) 44MC 44-lead (2-row Staggered), 5 × 5 × 1.0mm body, 2.60 × 2.60mm Exposed Pad, Quad Flat No-Lead Package (QFN) 49C2 49-ball, (7 × 7 Array) 0.65mm Pitch, 5 × 5 × 1mm, Very Thin, Fine-Pitch Ball Grid Array Package (VFBGA) ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 17 9.2 Atmel ATmega164PA Speed [MHz] (3) 20 20 Notes: Power supply Ordering code (2) Package (1) Operational range 1.8 - 5.5V ATmega164PA-AU ATmega164PA-AUR(5) ATmega164PA-PU ATmega164PA-MU ATmega164PA-MUR(5) ATmega164PA-MCH(4) ATmega164PA-MCHR(4)(5) ATmega164PA-CU ATmega164PA-CUR(5) 44A 44A 40P6 44M1 44M1 44MC 44MC 49C2 49C2 Industrial (-40oC to 85oC) 1.8 - 5.5V ATmega164PA-AN ATmega164PA-ANR(5) ATmega164PA-PN ATmega164PA-MN ATmega164PA-MNR(5) 44A 44A 40P6 44M1 44M1 Industrial (-40oC to 105oC) 1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information and minimum quantities. 2. Pb-free packaging, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also Halide free and fully Green. 3. For Speed vs. VCC see ”Speed grades” on page 324. 4. NiPdAu Lead Finish. 5. Tape & Reel. Package Type 44A 44-lead, Thin (1.0mm) Plastic Gull Wing Quad Flat Package (TQFP) 40P6 40-pin, 0.600” Wide, Plastic Dual Inline Package (PDIP) 44M1 44-pad, 7 × 7 × 1.0mm body, lead pitch 0.50mm, Thermally Enhanced Plastic Very Thin Quad Flat No-Lead (VQFN) 44MC 44-lead (2-row Staggered), 5 × 5 × 1.0mm body, 2.60 × 2.60mm Exposed Pad, Quad Flat No-Lead Package (QFN) 49C2 49-ball, (7 × 7 Array) 0.65mm Pitch, 5 × 5 × 1mm, Very Thin, Fine-Pitch Ball Grid Array Package (VFBGA) ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 18 9.3 Atmel ATmega324A Speed [MHz] (3) 20 Notes: Power supply 1.8 - 5.5V Ordering code (2) ATmega324A-AU ATmega324A-AUR(5) ATmega324A-PU ATmega324A-MU ATmega324A-MUR(5) ATmega324A-MCH(4) ATmega324A-MCHR(4)(5) ATmega324A-CU ATmega324A-CUR(5) Package (1) 44A 44A 40P6 44M1 44M1 44MC 44MC 49C2 49C2 Operational range Industrial (-40oC to 85oC) 1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information and minimum quantities. 2. Pb-free packaging, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also Halide free and fully Green. 3. For Speed vs. VCC see ”Speed grades” on page 324. 4. NiPdAu Lead Finish. 5. Tape & Reel. Package Type 44A 44-lead, Thin (1.0mm) Plastic Gull Wing Quad Flat Package (TQFP) 40P6 40-pin, 0.600” Wide, Plastic Dual Inline Package (PDIP) 44M1 44-pad, 7 × 7 × 1.0mm body, lead pitch 0.50mm, Thermally Enhanced Plastic Very Thin Quad Flat No-Lead (VQFN) 44MC 44-lead (2-row Staggered), 5 × 5 × 1.0mm body, 2.60 × 2.60mm Exposed Pad, Quad Flat No-Lead Package (QFN) 49C2 49-ball, (7 × 7 Array) 0.65mm Pitch, 5 × 5 × 1mm, Very Thin, Fine-Pitch Ball Grid Array Package (VFBGA) ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 19 9.4 Atmel ATmega324PA Speed [MHz] (3) 20 20 Notes: Power supply Ordering code (2) Package (1) Operational range 1.8 - 5.5V ATmega324PA-AU ATmega324PA-AUR(5) ATmega324PA-PU ATmega324PA-MU ATmega324PA-MUR(5) ATmega324PA-MCH(4) ATmega324PA-MCHR(4)(5) ATmega324PA-CU ATmega324PA-CUR(5) 44A 44A 40P6 44M1 44M1 44MC 44MC 49C2 49C2 Industrial (-40oC to 85oC) 1.8 - 5.5V ATmega324PA-AN ATmega324PA-ANR(5) ATmega324PA-PN ATmega324PA-MN ATmega324PA-MNR(5) 44A 44A 40P6 44M1 44M1 Industrial (-40oC to 105oC) 1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information and minimum quantities. 2. Pb-free packaging, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also Halide free and fully Green. 3. For Speed vs. VCC see ”Speed grades” on page 324. 4. NiPdAu Lead Finish. 5. Tape & Reel. Package Type 44A 44-lead, Thin (1.0mm) Plastic Gull Wing Quad Flat Package (TQFP) 40P6 40-pin, 0.600” Wide, Plastic Dual Inline Package (PDIP) 44M1 44-pad, 7 × 7 × 1.0mm body, lead pitch 0.50mm, Thermally Enhanced Plastic Very Thin Quad Flat No-Lead (VQFN) 44MC 44-lead (2-row Staggered), 5 × 5 × 1.0mm body, 2.60 × 2.60mm Exposed Pad, Quad Flat No-Lead Package (QFN) 49C2 49-ball, (7 × 7 Array) 0.65mm Pitch, 5 × 5 × 1mm, Very Thin, Fine-Pitch Ball Grid Array Package (VFBGA) ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 20 9.5 Atmel ATmega644A Speed [MHz](3) 20 Notes: Power supply 1.8 - 5.5V Ordering code(2) ATmega644A-AU ATmega644A-AUR(4) ATmega644A-PU ATmega644A-MU ATmega644A-MUR(4) Package(1) 44A 44A 40P6 44M1 44M1 Operational range Industrial (-40oC to 85oC) 1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information and minimum quantities. 2. Pb-free packaging, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also Halide free and fully Green. 3. For Speed vs. VCC see ”Speed grades” on page 324. 4. Taper & Reel. Package Type 44A 44-lead, Thin (1.0mm) Plastic Gull Wing Quad Flat Package (TQFP) 40P6 40-pin, 0.600” Wide, Plastic Dual Inline Package (PDIP) 44M1 44-pad, 7 × 7 × 1.0mm body, lead pitch 0.5 mm, Thermally Enhanced Plastic Very Thin Quad Flat No-Lead (VQFN) ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 21 9.6 Atmel ATmega644PA Speed [MHz] (3) 20 20 Notes: Power supply Ordering code (2) Package (1) 1.8 - 5.5V ATmega644PA-AU ATmega644PA-AUR(4) ATmega644PA-PU ATmega644PA-MU ATmega644PA-MUR(4) 44A 44A 40P6 44M1 44M1 Industrial (-40oC to 85oC) 1.8 - 5.5V ATmega644PA-AN ATmega644PA-ANR(4) ATmega644PA-PN ATmega644PA-MN ATmega644PA-MNR(4) 44A 44A 40P6 44M1 44M1 Industrial (-40oC to 105oC) Operational range 1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information and minimum quantities. 2. Pb-free packaging, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also Halide free and fully Green. 3. For Speed vs. VCC see ”Speed grades” on page 324. 4. Taper & Reel. Package Type 44A 44-lead, Thin (1.0mm) Plastic Gull Wing Quad Flat Package (TQFP) 40P6 40-pin, 0.600” Wide, Plastic Dual Inline Package (PDIP) 44M1 44-pad, 7 × 7 × 1.0mm body, lead pitch 0.50mm, Thermally Enhanced Plastic Very Thin Quad Flat No-Lead (VQFN) ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 22 9.7 Atmel ATmega1284 Speed [MHz](3) 20 Notes: Power supply 1.8 - 5.5V Ordering code(2) ATmega1284-AU ATmega1284-AUR(4) ATmega1284-PU ATmega1284-MU ATmega1284-MUR(4) Package(1) 44A 44A 40P6 44M1 44M1 Operational range Industrial (-40oC to 85oC) 1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information and minimum quantities. 2. Pb-free packaging, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also Halide free and fully Green. 3. For Speed vs. VCC see ”Speed grades” on page 324. 4. Tape & Reel. Package Type 44A 44-lead, Thin (1.0mm) Plastic Gull Wing Quad Flat Package (TQFP) 40P6 40-pin, 0.600” Wide, Plastic Dual Inline Package (PDIP) 44M1 44-pad, 7 × 7 × 1.0mm body, lead pitch 0.50mm, Quad Flat No-Lead/Micro Lead Frame Package (QFN/MLF) ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 23 9.8 Atmel ATmega1284P Speed [MHz] (3) 20 20 Notes: Power supply Ordering code (2) Package (1) 1.8 - 5.5V ATmega1284P-AU ATmega1284P-AUR(4) ATmega1284P-PU ATmega1284P-MU ATmega1284P-MUR(4) 44A 44A 40P6 44M1 44M1 Industrial (-40oC to 85oC) 1.8 - 5.5V ATmega1284P-AN ATmega1284P-ANR(4) ATmega1284P-PN ATmega1284P-MN ATmega1284P-MNR(4) 44A 44A 40P6 44M1 44M1 Industrial (-40oC to 105oC) Operational range 1. This device can also be supplied in wafer form. Please contact your local Atmel sales office for detailed ordering information and minimum quantities. 2. Pb-free packaging, complies to the European Directive for Restriction of Hazardous Substances (RoHS directive). Also Halide free and fully Green. 3. For Speed vs. VCC see ”Speed grades” on page 324. 4. Tape & Reel. Package Type 44A 44-lead, Thin (1.0mm) Plastic Gull Wing Quad Flat Package (TQFP) 40P6 40-pin, 0.600” Wide, Plastic Dual Inline Package (PDIP) 44M1 44-pad, 7 × 7 × 1.0mm body, lead pitch 0.50mm, Quad Flat No-Lead/Micro Lead Frame Package (QFN/MLF) ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 24 10. Packaging information 10.1 44A PIN 1 IDENTIFIER PIN 1 e B E1 E A1 A2 D1 D C 0°~7° A L COMMON DIMENSIONS (Unit of Measure = mm) Notes: 1. This package conforms to JEDEC reference MS-026, Variation ACB. 2. Dimensions D1 and E1 do not include mold protrusion. Allowable protrusion is 0.25mm per side. Dimensions D1 and E1 are maximum plastic body size dimensions including mold mismatch. 3. Lead coplanarity is 0.10mm maximum. SYMBOL MIN NOM MAX A – – 1.20 A1 0.05 – 0.15 A2 0.95 1.00 1.05 D 11.75 12.00 12.25 D1 9.90 10.00 10.10 E 11.75 12.00 12.25 E1 9.90 10.00 10.10 B 0.30 0.37 0.45 C 0.09 (0.17) 0.20 L 0.45 0.60 0.75 e NOTE Note 2 Note 2 0.80 TYP 06/02/2014 44A, 44-lead, 10 x 10mm body size, 1.0mm body thickness, 0.8 mm lead pitch, thin profile plastic quad flat package (TQFP) 44A ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 C 25 10.2 40P6 D PIN 1 E1 A SEATING PLANE A1 L B B1 e E 0º ~ 15º C COMMON DIMENSIONS (Unit of Measure = mm) REF eB Notes: 1. This package conforms to JEDEC reference MS-011, Variation AC. 2. Dimensions D and E1 do not include mold Flash or Protrusion. Mold Flash or Protrusion shall not exceed 0.25mm (0.010"). SYMBOL MIN NOM MAX A – – 4.826 A1 0.381 – – D 52.070 – 52.578 E 15.240 – 15.875 E1 13.462 – 13.970 B 0.356 – 0.559 B1 1.041 – 1.651 L 3.048 – 3.556 C 0.203 – 0.381 eB 15.494 – 17.526 e NOTE Note 2 Note 2 2.540 TYP 13/02/2014 40P6, 40-lead (0.600"/15.24mm Wide) Plastic Dual Inline Package (PDIP) 40P6 ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 C 26 10.3 44M1 D Marked Pin# 1 I D E SE ATING PLAN E A1 TOP VIE W A3 A K L Pin #1 Co rner D2 1 2 3 SIDE VIEW Pin #1 Triangle Option A E2 Option B K Option C b e Pin #1 Cham fer (C 0.30) Pin #1 Notch (0.20 R) B OT TOM VIE W COMMON DIMENSIONS (Unit of Measure = mm) SYMBOL MIN NOM MAX A 0.80 0.90 1.00 A1 – 0.02 0.05 A3 0.20 REF b 0.18 0.23 0.30 D 6.90 7.00 7.10 D2 5.00 5.20 5.40 E 6.90 7.00 7.10 E2 5.00 5.20 5.40 e Note: JEDEC Standard MO-220, Fig . 1 (S AW Singulation) VKKD-3 . NOT E 0.50 BSC L 0.59 0.64 0.69 K 0.20 0.26 0.41 9/26/08 Package Drawing Contact: [email protected] TITLE 44M1, 44-pad, 7 x 7 x 1.0mm body, lead pitch 0.50mm, 5.20mm exposed pad, thermally enhanced plastic very thin quad flat no lead package (VQFN) GPC ZWS DRAWING NO. 44M1 ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 REV. H 27 10.4 44MC C Pin 1 ID D SIDE VIEW y A1 E A TOP VIEW eT/2 A19 eR A24 B20 B16 A1 A18 COMMON DIMENSIONS (Unit of Measure = mm) B1 B15 b R0.20 MIN NOM MAX A 0.80 0.90 1.00 A1 0.00 0.02 0.05 b 0.18 0.23 0.30 SYMBOL 0.40 D2 eT C B5 B11 A6 A13 B10 B6 A12 L 0.20 REF 4.90 5.00 5.10 D2 2.55 2.60 2.65 E 4.90 5.00 5.10 E2 2.55 2.60 2.65 eT – 0.70 – eR – 0.40 – K 0.45 – – L 0.30 0.35 0.40 y 0.00 – 0.075 A7 E2 BOTTOM VIEW Note: D NOT E 1. The terminal #1 ID is a Laser-marked Feature. L L TITLE 44MC, 44QFN (2-Row Staggered), 5 x 5 x 1.00 mm Body, Package Drawing Contact: [email protected] 2.60 x 2.60 mm Exposed Pad, Quad Flat No Lead Package 9/13/07 DRA WING NO . REV . 44MC ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 A 28 10.5 49C2 E A1 BALL ID 0.10 D A1 TOP VIEW A A2 SIDE VIEW E1 G e F E D D1 COMMON DIMENSIONS (Unit of Measure = mm) C B SYMBOL A 1 A1 BALL CORNER 2 3 4 5 b 6 7 e 49 - Ø0.35 ±0.05 BOTTOM VIEW MIN NOM MAX A – – 1.00 A1 0.20 – – A2 0.65 – – D 4.90 5.00 5.10 D1 E 4.90 3.90 BSC 5.00 5.10 E1 b NOTE 3.90 BSC 0.30 0.35 e 0.40 0.65 BSC 3/14/08 TITLE 49C2, 49-ball (7 x 7 array), 0.65mm pitch, Package Drawing Contact: [email protected] 5.0 x 5.0 x 1.0mm, very thin, fine-pitch ball grid array package (VFBGA) GPC CBD DRAWING NO. 49C2 ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 REV. A 29 11. Errata 11.1 Errata for ATmega164A 11.1.1 Rev. E No known Errata. 11.2 Errata for ATmega164PA 11.2.1 Rev. E No known Errata. 11.3 Errata for ATmega324A 11.3.1 Rev. F No known Errata. 11.4 Errata for ATmega324PA 11.4.1 Rev. F No known Errata. 11.5 Errata for ATmega644A 11.5.1 Rev. F No known Errata. 11.6 Errata for ATmega644PA 11.6.1 Rev. F No known Errata. 11.7 Errata for ATmega1284 11.7.1 Rev. B No known Errata. 11.8 Errata for ATmega1284P 11.8.1 Rev. B No known Errata. ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 30 12. 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. 12.1 Rev. 8272G - 01/2015 1. Updated Table 1-2 on page 5, Table 8-1 on page 25, Table 10-1 on page 42, Table 14-3 on page 79, Table 19-4 on page 187, Table 19-11 on page 192 and Table 28-16 on page 328 for formatting consistency errors Updated ”Ordering information” on page 17: ̶ Added ordering information for ATmega164PA @105C; ATmega324PA @ 105C; ATmega324PA 2. @105C; ATmega644PA @ 105C and ATmega1284P @ 105C 3. 12.2 Updated the ”Packaging information” on page 25: ̶ Replaced the drawing ”44M1” on page 27 by a correct package Rev. 8272F - 08/2014 1. Updated text in Section 13.2.8 ”PCMSK1 – Pin Change Mask Register 1” on page 70 to: “If PCINT15:8 is set and the PCIE1 bit in PCICR is set, pin change interrupt is enabled on the corresponding I/O pin.” 2. Corrected description of PAGEMSB in Table 26-9 on page 281. The device has 64 words in a page and not 128. 3. Corrected description of PAGEMSB in Table 26-12 on page 282. PAGESMB is 5 and the device has 64 words in a page and not 128. The page require six bits and not seven. 4. Corrected values in Table 26-16 on page 284. PAGEMSB is 6. ZPAGEMSB is Z7 and PCPAGE is Z15:Z8 5. Corrected value for PCPAGE in Table 27-7 on page 290. The correct value is PC[14:7] 6. Updated description in Table 17-2 on page 151 to “Normal port operation, OC2A disconnected.” 7. Updated Assembly code examples on for ”Watchdog Timer” on page 55. and onwards “out WDTCSR, r16” changed to “sts WDTCSR, r16” “in r16, WDTCSR” changed to “lds r16, WDTCSR” “idi r16, WDTCSR” changed to “lds r16, WDTCSR” 8. Updated addresses 0x65 and 0x64 in Section 7. ”Register summary” on page 10. 9. Removed notes 5 and 6 from Table 28-16 on page 328. 10. Corrected values in Section 8. ”Instruction set summary” on page 14.Changed clock values for RCALL and ICALL to 2, for Call, Ret and RETI to 4. Also changed values in Section 7.7.1 ”Interrupt response time” on page 18. 11. Updated layout, footer and back page according to template 0205/2014 ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 31 12.3 Rev. 8272E - 04/2013 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 12.4 3. 4. 5. 6. Updated the Assembly code example for WDT_off (p.56) following the ej# 705736. Added note in ”16-bit Timer/Counter1 and Timer/Counter3(1) with PWM” on page 107. Added ”Prescaler Reset” on page 112. Corrected three typo for Waveform generation mode (WGM) instead of MGM. Updated Table 23-6 on page 253. ADC Auto Trigger Source Selections, ADTS=0b011, the statement is Timer/Counter0 Compare Match A. Updated Table 27-18 on page 310. Command for 6d Poll for Fuse Write Complete: 0111011_00000000 Updated the table notes of the Table 28-1 on page 318. Updated ”Register summary” on page 10. Added table note 7: Only available in ATmega1284/1284P. Updated ”Power-down mode” on page 44. Updated ”Overview” on page 67. Corrected references for Bit 2, Bit 1, and Bit 0 in Section ”UCSRnC – USART MSPIM Control and Status Register n C” on page 201. Several small corrections throughout the whole document made according to the template Notes in Table 27-17 on page 304 have been corrected Note (1) in Table 28-3 on page 320 is added Rev. 8272C - 06/11 1. 12.6 Updated descriptive text on page 6 to indicate that ATmega1284/1284P has four T/Cs. Rev. 8272D - 05/12 1. 2. 12.5 Updated Figure 1-1 on page 3 and Figure 2-1 on page 6: T3 and T/C3 only available in ATmega1284/1284P. Updated ”Atmel ATmega1284P DC characteristics” on page 323. Rev. 8272B - 05/11 1. 2. 3. 4. 5. 6. Added Atmel QTouch Library Support and QTouch Sensing Capability Features. Replaced the Figure 1-1 on page 3 by an updated “Pinout.” that includes Timer/Counter3. Replaced the Figure 7-1 on page 10 by an updated “Block diagram of the AVR architecture.” that includes Timer/Counter3. Added ”RAMPZ – Extended Z-pointer Register for ELPM/SPM(1)” on page 15. Added ”PRR1 – Power Reduction Register 1” on page 49. Renamed PRR to ”PRR0 – Power Reduction Register 0” on page 48. 7. Updated ”PCIFR – Pin Change Interrupt Flag Register” on page 69. PCICR replaces EIMSR in the PCIF3, PCIF2, PCIF1 and PCIF0 bit description. 8. Updated ”PCMSK3 – Pin Change Mask Register 3” on page 70. PCIE3 replaces PCIE2 in the bit description. 9. Updated ”Alternate Functions of Port B” on page 80 to include Timer/Counter3 10. Updated ”Alternate Functions of Port D” on page 86 to include Timer/Counter3 11. Added ”TCNT3H and TCNT3L –Timer/Counter3” on page 132 ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 32 12.7 12. Added ”OCR3AH and OCR3AL – Output Compare Register3 A” on page 133 13. Added ”OCR3BH and OCR3BL – Output Compare Register3 B” on page 133 14. Added ”TIMSK3 – Timer/Counter3 Interrupt Mask Register” on page 134 15. Updated All “SPI – Serial Peripheral Interface” “Register description” to reflect ATmega1284 and ATmega1284P. 16. Updated ”Addressing the Flash During Self-Programming” on page 274 to include RAMPZ register. 17. Updated Table 27-16 on page 303. tWD_EEPROM is 3.6ms instead of 9ms. 18. BODS and BODSE bits denoted as R/W 19. Description of external pin modes below table 16-9 removed. 20. Updated ”Register summary” on page 10 to include Timer/Counter3. 21. Updated the datasheet with Atmel new style guide. Rev. 8272A - 01/10 1. Initial revision (Based on the ATmega164PA/324PA/644PA/1284P datasheet 8252G-AVR-11/09 and on the ATmega644 datasheet 2593N-AVR-09/09). 2. Changes done: ̶ Non-picoPower devices added: ATmega164A/324A/644A/1284 ̶ Updated Table 2-1 on page 7 ̶ Updated Table 10-1 on page 42 ̶ Updated ”Sleep Modes” on page 42 and ”BOD disable(1)” on page 43 ̶ Updated ”Register description” on page 67 ̶ Updated ”USART” on page 167 and ”USART in SPI mode” on page 194 ̶ Updated ”Signature Bytes” on page 290 and ”Page Size” on page 290 ̶ Added ”DC Characteristics” on page 318 for non-picoPower devices. ̶ Added ”Atmel ATmega164A typical characteristics” on page 333 ̶ Added ”Atmel ATmega324A typical characteristics” on page 386 ̶ Added ”Atmel ATmega644A typical characteristics” on page 438 ̶ Added ”ATmega1284 typical characteristics” on page 490 ̶ Added ”Ordering information” on page 17 for non-picoPower devices ̶ Added ”Errata for ATmega164A” on page 30 ̶ Added ”Errata for ATmega324A” on page 30 ̶ Added ”Errata for ATmega644PA” on page 30 ̶ Added ”Errata for ATmega1284” on page 30 ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P [DATASHEET SUMMARY] Atmel-8272GS-AVR-01/2015 33 XXXXXX Atmel Corporation 1600 Technology Drive, San Jose, CA 95110 USA T: (+1)(408) 441.0311 F: (+1)(408) 436.4200 | www.atmel.com © 2015 Atmel Corporation. / Rev.: Atmel-8272GS-AVR-ATmega164A/PA/324A/PA/644A/PA/1284/P-Datasheet Summary_01/2015. 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