ATMEGA8515L-8JU - 8-bit AVR MCU 8MHz 8KB Flash | Microchip
N.º da peça: ATMEGA8515L-8JU ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $9.14 | $9,14 |
| 10 | $8.6 | $86,00 |
| 100 | $8 | $800,00 |
| 500 | $7.4 | $3.700,00 |
| 1.000 | $6.9 | $6.900,00 |
ATMEGA8515L-8JU Visão geral
An 8-bit microcontroller is an integrated circuit that combines a processor core, memory, and peripherals on a single chip, sitting within the broader hierarchy of semiconductor devices: microcontroller -> embedded processor -> integrated circuit. The AVR architecture used here executes most instructions in a single clock cycle, so the ATMEGA8515L-8JU delivers up to 8 MIPS of throughput at its 8 MHz maximum rating, making it a classic choice for cost-sensitive embedded control systems.
Key features include the advanced AVR RISC architecture with 130 powerful instructions, an 8 KB self-programmable Flash program memory rated for 10,000 write cycles, 512 B of EEPROM rated for 100,000 write cycles, and four 8-bit bidirectional I/O ports providing up to 35 programmable I/O lines (23 I/O on some package variants per distributor data). The device operates from a 4.5 V to 5.5 V supply in this 8 MHz 'L' speed grade at industrial temperature range, and its green/RoHS-compliant package suits lead-free assembly.
Technically, the ATmega8515 core integrates a hardware multiplier path, external memory interface, and peripherals such as 8-bit and 16-bit timers with PWM, a USART, an SPI serial interface, and a 10-bit ADC depending on family variant configuration, with in-circuit programming supported via SPI using tools such as the MPLAB SNAP.
Typical applications include industrial control panels, legacy equipment maintenance and repair, motor control boards, and embedded test fixtures where the PLCC socketed package allows easy field replacement.
When designing with this part, remember the 4.5 V to 5.5 V operating window of the 8 MHz L grade; running at 5 V ensures full speed and I/O drive compliance.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternativas drop-in para ATMEGA8515L-8JU — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com ATMEGA8515L-8JU (mesmo formato e footprint) — diferindo em Package, Communication Interfaces, Operating Temperature, Throughput, Core Architecture.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
ATMEGA8515L-8JI
✅ Drop-In✓ Em estoque
Consulte o preço
Ver ficha técnica →ATMEGA8515L-8JC
✅ Drop-In✓ Em estoque
$3.51 / unidade
Ver ficha técnica →ATMEGA8515-16JI
✅ Drop-In✓ Em estoque
$5.44 / unidade
Ver ficha técnica →ATMEGA8515-16JC
✅ Drop-In✓ Em estoque
$2.85 / unidade
Ver ficha técnica →ATMEGA8515L-8JU Classificações máximas e características elétricas
| Core Processor | AVR |
| Core Size | 8-bit |
| Speed | 8 MHz |
| Program Memory Type | FLASH |
| Program Memory Size | 8 KB (4K x 16) |
| EEPROM Size | 512 B |
| RAM Size | 544 B internal |
| External Memory Support | Up to 64 KB external SRAM |
| Tensão de alimentação | 4.5 V to 5.5 V |
| Temperatura de operação | -40C to +85C (industrial) |
| Encapsulamento / Caixa | 44-PLCC (16.6 x 16.6 mm) |
| Tipo de montagem | Surface Mount (J-lead) |
| I/O Count | 23 I/O ports (per distributor data) |
| Instructions | 130 powerful instructions, most single-cycle |
| Throughput | Up to 8 MIPS at 8 MHz |
| Status RoHS | Compliant (GREEN per distributor data) |
| Status do ciclo de vida | ACTIVE |
Guia de Configuração de Pinos do ATMEGA8515L-8JU 44-plcc (16.6 x 16.6 mm)
Configuração de pinos para ATMEGA8515L-8JU (pacote 44-plcc (16.6 x 16.6 mm)). Este CI digital inclui GPIO, interfaces de comunicação (UART, SPI, I2C) e pinos de alimentação. Consulte o datasheet do fabricante para funções alternativas dos pinos e opções de configuração. Essencial para projeto de sistemas embarcados e layout de PCB.
Nenhum dado detalhado de pinagem disponível para ATMEGA8515L-8JU.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
ATMEGA8515L-8JU é adequado para 6 aplicaçãos: Industrial Control Panels, Legacy Equipment Maintenance and Repair, Motor Control Boards, Embedded Test Fixtures, Building Automation Nodes, Consumer Appliance Control.
Industrial Control Panels
The ATMEGA8515L-8JU fits industrial control panels because its -40C to +85C industrial temperature rating, 4.5 V to 5.5 V tolerant supply, and watchdog capability match the harsh electrical environment of factory floors. The 8 KB Flash stores state-machine control logic while the external memory interface expands RAM to 64 KB for logging and HMI buffers. Its PLCC-44 J-lead package is socket-mountable, allowing technicians to swap controllers without desoldering, minimizing production-line downtime. Running at 5 V gives robust noise immunity on long wiring runs where 3.3 V logic would be marginal.
Recomendado
Legacy Equipment Maintenance and Repair
For maintaining aging industrial and telecom equipment originally designed around Atmel ATmega8515 parts, the ATMEGA8515L-8JU is a current-production replacement with an identical socketed PLCC-44 footprint. Distributors including DigiKey, Mouser, and LCSC list the part in stock as of 2026-09-18 at approximately $9.14 for single units. Because the Flash is In-System Programmable via SPI, firmware images can be reflashed in-circuit using an MPLAB SNAP programmer without removing the chip from its socket, which speeds repair turnaround on obsolete boards where the original firmware source is still available.
Recomendado
Motor Control Boards
The ATMEGA8515L-8JU suits small motor control boards that use its 8-bit timers with PWM outputs to drive MOSFET half-bridges for DC or stepper motors. At 8 MHz the core delivers up to 8 MIPS, sufficient for 16 kHz PWM generation with closed-loop speed control at moderate sample rates. The four 8-bit ports provide enough I/O for limit switches, encoder inputs, and status LEDs without external logic. Operating at 5 V ensures gate-drive signals stay above MOSFET logic-level thresholds, and the industrial temperature rating tolerates the elevated ambient temperatures inside motor drive enclosures.
Recomendado
Embedded Test Fixtures
Production test fixtures benefit from the ATMEGA8515L-8JU's combination of 23 I/O lines, SPI, USART, and external SRAM support up to 64 KB. A fixture controller can sequence test vectors, capture device-under-test responses into external RAM, and stream results over USART to a host PC. The 5 V supply matches the logic levels of many legacy boards under test, avoiding level-shift circuitry. The PLCC-44 package's J-leads and socket compatibility allow quick controller replacement when fixture firmware changes, and the 8 KB Flash accommodates per-product test scripts stored as data tables.
Recomendado
Building Automation Nodes
In building automation, the ATMEGA8515L-8JU can serve as a sensor and actuator node communicating over RS-485 via its USART with an external transceiver. The 512 B EEPROM stores calibration constants and node addresses that survive power loss, while 8 KB Flash holds protocol stacks for simple fieldbus schemes. Its 4.5 V to 5.5 V operation aligns with industrially common 5 V rails derived from 24 V bus power via buck regulators. The industrial temperature rating covers rooftop and mechanical-room installations, and socketed PLCC mounting simplifies field firmware and hardware servicing across a building's node fleet.
Recomendado
Consumer Appliance Control
Appliance control boards for washing machines, dishwashers, and small HVAC units historically used ATmega8515-class AVRs; the ATMEGA8515L-8JU supports these designs with its 8 KB Flash for UI state machines, PWM outputs for motor and heater triac control, and ADC-based user-input scanning where the variant supports data conversion. The PLCC-44 footprint reflows onto standard 1.6 mm FR-4 control boards, and its 5 V operation interfaces directly with optocoupler-isolated triac drive stages. For high-volume appliance production, tiered pricing at approximately $6.90 per unit at qty 1000 (as of 2026-09-18) keeps controller BOM cost predictable.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para ATMEGA8515L-8JU — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | ATMEGA8515L-8JI | ATMEGA8515L-8JC | ATMEGA8515-16JI | ATMEGA8515-16JC |
|---|---|---|---|---|---|
| Package | 44-PLCC (16.6 x 16.6 mm) | 44-PLCC - same | 44-PLCC - same | 44-PLCC - same | 44-PLCC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max Clock Speed | 8 MHz | 8 MHz | 8 MHz | 16 MHz | 16 MHz |
| Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V | 4.5 V to 5.5 V |
| Flash Memory | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| Temperature Range | -40C to +85C (industrial) | -40C to +85C (industrial) | 0C to +70C (commercial) | -40C to +85C (industrial) | 0C to +70C (commercial) |
| EEPROM | 512 B | 512 B | 512 B | 512 B | 512 B |
Principais diferenciais
- Industrial temperature rating in same footprint (vs ATMEGA8515L-8JC)
- Balanced cost/speed in the family (vs ATMEGA8515-16JI)
- External memory expansion up to 64 KB (vs ATMEGA8-16PI)
Notas de projeto
Design the 5 V rail with at least 10 uF bulk plus 0.1 uF ceramic decoupling at each VCC/GND pin pair of the PLCC-44 package. The AVR core current at 8 MHz and 5 V is modest, but the external memory bus (if used) adds capacitive switching load on port pins, so allocate supply margin for address/data line toggling. Estimated: at 8 MHz, typical active current is in the low mA range per AVR family characteristics; verify against the manufacturer datasheet electrical characteristics table for your exact operating corner.
The PLCC-44 J-lead package suits both reflow assembly and socketed mounting. If using a PLCC socket for field serviceability, budget for socket contact resistance and confirm reflow profiles on the J-leads (0.8 mm pitch per distributor package description). Route the crystal as short as possible to the XTAL pins with proper load capacitors; AVR clock integrity depends on clean oscillator layout. Keep the RESET trace short and add a 10 kOhm pull-up for reliable SPI in-circuit programming with MPLAB SNAP.
Do not confuse PLCC and TQFP variants: ATMEGA8515L-8AUR is the TQFP package and is NOT pin-compatible with the -8JU PLCC-44 despite sharing core specs. Also, the 'L' suffix here denotes the 8 MHz speed grade rather than a low-voltage guarantee beyond the 4.5 V to 5.5 V window for this grade; running below 4.5 V violates the data range cited by distributors. When planning drop-in swaps with ATMEGA8515-16JI (16 MHz), confirm your clock source and timing budgets accommodate the faster part.
Informações de conformidade
Distributor data (FindIC) describes this part as GREEN package, industrial temperature range. RoHS/lead-free inferred from GREEN designation; obtain formal compliance certificates from Microchip for audit purposes.
