Atmel ATMEGA64AU-TH

Mfr. Part

ATMEGA64AU-TH

Manufacturer

Atmel (Microchip Technology). Y-IC is a quality distributor for this brand and we will provide you with the best products and services

Detailed Description

8-bit AVR megaAVR microcontroller with 64 KB in-system-programmable Flash, on-chip SRAM and EEPROM, rich digital and analog peripherals, and on-chip debug. AU suffix indicates a 64-pin TQFP package. The -TH dash code is typically a packaging/handling code; the silicon functionality is the same. Ideal for embedded control, industrial, and consumer applications that need dependable real-time performance and low power

Key Features

8-bit AVR RISC CPU with single-cycle execution

64 KB Flash (ISP, read-while-write)

4 KB SRAM (family typical)

2 KB EEPROM

Up to 16 MHz system clock (grade-dependent; internal RC and external crystal/clock options)

Up to 53 programmable digital I/O pins with multiple interrupt sources

Timers/Counters: 8-bit and 16-bit with PWM outputs

10-bit ADC with multiple input channels

Interfaces: SPI, TWI (I2C-compatible), USART(s), JTAG boundary scan and on-chip debug

Watchdog timer, brown-out detection, power-on reset

Multiple low-power sleep modes

Wide supply range and industrial temperature options (verify exact grade in datasheet)

Key Advantages

Mature, stable platform with a large ecosystem of tools, code examples, and community support

Easy in-system programming via SPI or JTAG; simplifies manufacturing and field updates

Low power with flexible sleep modes; good for battery devices

Deterministic real-time behavior; simple and reliable control

Family/software reuse across many megaAVR devices; smooth migration paths

Backed by Microchip’s long-term support and documentation

Packaging

Package type: AU suffix = 64-lead TQFP (Thin Quad Flat Package)

Material: plastic epoxy-molded, RoHS compliant; halogen-free options common for -TH codes

Pin configuration: 64 pins, fine-pitch gull-wing leads; typical pitch 0.5 mm; multiple VCC/GND pins

Body size: standard 64-TQFP footprint; see the datasheet mechanical drawing for exact dimensions and tolerances

Packaging options: tape-and-reel or tray depending on dash code; confirm -TH specifics with our sales team

Thermal characteristics: thermal resistance depends on PCB and airflow; refer to datasheet thermal tables for 64‑TQFP guidance

Electrical properties overview: 64 KB Flash, 4 KB SRAM, 2 KB EEPROM; wide operating voltage (grade dependent); clock up to 16 MHz (grade dependent); CMOS/TTL-level I/O

Distributor package/case code: 1057 (mapping to the physical 64‑TQFP; verify with datasheet/mechanical data)

Lifecycle

Status: Active within Microchip’s megaAVR portfolio. Some older non‑A dash codes may be NRND; the A‑revision is generally recommended for new designs

Migration guidance: For new designs, consider the A‑revision or higher‑flash pin‑compatible options

Equivalent or alternative models (verify details before substituting):

- ATMEGA64A-AU (64‑TQFP; same family; common recommended replacement)

- ATMEGA128A-AU (64‑TQFP; pin‑compatible superset with 128 KB Flash)

- ATMEGA64A-MU (64‑lead MLF/QFN; same family in QFN‑style package if QFN is acceptable)

- ATMEGA64-16AU (legacy speed grade; check availability/lifecycle)

If you need a true drop‑in for ATMEGA64AU-TH or do not see a suitable equivalent, please contact our Y-IC sales team via our website for the latest cross‑reference and lifecycle confirmation

Key Application Areas

Industrial control, instrumentation, and HMI

Consumer electronics and small appliances

Robotics, DIY, and education platforms

Building automation, smart sensors, and security panels

Data loggers, handheld terminals, POS peripherals

Communication bridges via UART/SPI/I2C (TWI)

Datasheet

Our website provides the most authoritative and up‑to‑date datasheet for this exact model. We recommend downloading it on this page to confirm pinout, timing, electrical limits, and mechanical dimensions

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