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ATmega64L 데이터시트 PDF




ATMEL Corporation에서 제조한 전자 부품 ATmega64L은 전자 산업 및 응용 분야에서
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부품번호 ATmega64L 기능
기능 8-bit Atmel Microcontroller
제조업체 ATMEL Corporation
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ATmega64L 데이터시트, 핀배열, 회로
Features
High-performance, Low-power Atmel AVR® 8-bit Microcontroller
Advanced RISC Architecture
– 130 Powerful Instructions – Most Single Clock Cycle Execution
– 32 x 8 General Purpose Working Registers + Peripheral Control Registers
– Fully Static Operation
– Up to 16 MIPS Throughput at 16 MHz
– On-chip 2-cycle Multiplier
High Endurance Non-volatile Memory segments
– 64 Kbytes of In-System Reprogrammable Flash program memory
– 2 Kbytes EEPROM
– 4 Kbytes 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
– Up to 64 Kbytes Optional External Memory Space
– Programming Lock for Software Security
– SPI Interface for In-System Programming
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
– Two Expanded 16-bit Timer/Counters with Separate Prescaler, Compare Mode, and
Capture Mode
– Real Time Counter with Separate Oscillator
– Two 8-bit PWM Channels
– 6 PWM Channels with Programmable Resolution from 1 to 16 Bits
– 8-channel, 10-bit ADC
8 Single-ended Channels
7 Differential Channels
2 Differential Channels with Programmable Gain (1x, 10x, 200x)
– Byte-oriented Two-wire Serial Interface
– Dual Programmable Serial USARTs
– Master/Slave SPI Serial Interface
– Programmable Watchdog Timer with On-chip Oscillator
– On-chip Analog Comparator
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
– Software Selectable Clock Frequency
– ATmega103 Compatibility Mode Selected by a Fuse
– Global Pull-up Disable
I/O and Packages
– 53 Programmable I/O Lines
– 64-lead TQFP and 64-pad QFN/MLF
Operating Voltages
– 2.7V - 5.5V for Atmel ATmega64L
– 4.5V - 5.5V for Atmel ATmega64
Speed Grades
– 0 - 8 MHz for ATmega64L
– 0 - 16 MHz for ATmega64
8-bit Atmel
Microcontroller
with 64K Bytes
In-System
Programmable
Flash
ATmega64
ATmega64L
2490R–AVR–02/2013




ATmega64L pdf, 반도체, 판매, 대치품
ATmega64(L)
ATmega103 and
ATmega64
Compatibility
The ATmega64 provides the following features: 64 Kbytes of In-System Programmable Flash
with Read-While-Write capabilities, 2 Kbytes EEPROM, 4 Kbytes SRAM, 53 general purpose I/O
lines, 32 general purpose working registers, Real Time Counter (RTC), four flexible Timer/Coun-
ters with compare modes and PWM, two USARTs, a byte oriented Two-wire Serial Interface, an
8-channel, 10-bit ADC with optional differential input stage with programmable gain, program-
mable 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 contin-
ues 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 asynchronous timer
and ADC, to minimize switching noise during ADC conversions. In Standby mode, the crys-
tal/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.
The device is manufactured using Atmel’s high-density non-volatile memory technology. The
On-chip ISP Flash allows the program memory to be reprogrammed In-System through an SPI
serial interface, by a conventional non-volatile memory programmer, or by an On-chip Boot pro-
gram 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 ATmega64 is a powerful microcontroller that provides a highly-flexible
and cost-effective solution to many embedded control applications.
The ATmega64 AVR 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.
The ATmega64 is a highly complex microcontroller where the number of I/O locations super-
sedes the 64 I/O location reserved in the AVR instruction set. To ensure backward compatibility
with the ATmega103, all I/O locations present in ATmega103 have the same location in
ATmega64. Most additional I/O locations are added in an Extended I/O space starting from 0x60
to 0xFF (that is, in the ATmega103 internal RAM space). These location can be reached by
using LD/LDS/LDD and ST/STS/STD instructions only, not by using IN and OUT instructions.
The relocation of the internal RAM space may still be a problem for ATmega103 users. Also, the
increased number of Interrupt Vectors might be a problem if the code uses absolute addresses.
To solve these problems, an ATmega103 compatibility mode can be selected by programming
the fuse M103C. In this mode, none of the functions in the Extended I/O space are in use, so the
internal RAM is located as in ATmega103. Also, the extended Interrupt Vectors are removed.
The ATmega64 is 100% pin compatible with ATmega103, and can replace the ATmega103 on
current printed circuit boards. The application notes “Replacing ATmega103 by ATmega128”
and “Migration between ATmega64 and ATmega128” describes what the user should be aware
of replacing the ATmega103 by an ATmega128 or ATmega64.
2490R–AVR–02/2013
4

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ATmega64L 전자부품, 판매, 대치품
RESET
XTAL1
XTAL2
AVCC
AREF
PEN
ATmega64(L)
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 Table 19 on page
52. Shorter pulses are not guaranteed to generate a reset.
Input to the inverting Oscillator amplifier and input to the internal clock operating circuit.
Output from the inverting Oscillator amplifier.
AVCC is the supply voltage pin for Port F and the A/D Converter. It should be externally con-
nected 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.
AREF is the analog reference pin for the A/D Converter.
This is a programming enable pin for the SPI Serial Programming mode. By holding this pin low
during a Power-on Reset, the device will enter the SPI Serial Programming mode. PEN is inter-
nally pulled high. The pullup is shown in Figure 22 on page 52 and its value is given in Section
“DC Characteristics” on page 325. PEN has no function during normal operation.
2490R–AVR–02/2013
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