Atmel Xplained Evaluation Kit ATMEGA1284P-XPLD ATMEGA1284P-XPLD Data Sheet
Product codes
ATMEGA1284P-XPLD
6
8272ES–AVR–04/2013
ATmega164A/PA/324A/PA/644A/PA/1284/P
The Atmel ATmega164A/164PA/324A/324PA/644A/644PA/1284/1284P provide the following
features:
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) flexi-
ble 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 program-
ming 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 timer base while the rest of the device is
sleeping. The ADC Noise Reduction mode stops the CPU and all I/O modules except Asynchro-
nous 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.
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) flexi-
ble 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 program-
ming 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 timer base while the rest of the device is
sleeping. The ADC Noise Reduction mode stops the CPU and all I/O modules except Asynchro-
nous 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
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 Read-While-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 microcon-
troller that provides a highly flexible and cost effective solution to many embedded control
applications.
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 Read-While-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 microcon-
troller 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.
program and system development tools including: C compilers, macro assemblers, program
debugger/simulators, in-circuit emulators, and evaluation kits.