ATMEGA8515L-8AI Microchip Integrated Circuit (Quad Flat Packages) In Stock
ATMEGA8515L-8AI is a low-power 8-bit AVR RISC microcontroller from Microchip, running at up to 8 MHz with 8KB Flash, 512B EEPROM, 512B SRAM, and 35 I/O pins in a 44-pin TQFP package. Fully compatible with AVR instruction set. Available worldwide with competitive pricing and fast shipping.
- Manufacturer
- Microchip
- Package
- Quad Flat Packages
- Pin Count
- 44
- Lifecycle
- ACTIVE
- Datasheet
- ATMEGA8515L-8AI Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 8 MHz AVR RISC core with 8KB in-system self-programmable Flash and 512B EEPROM for data retention
- 35 programmable I/O pins with 8-bit and 16-bit timer/counters, SPI, and USART interfaces in a compact 44-pin TQFP
- Low-power operation down to 2.7 V with idle and power-down modes consuming less than 1 µA at 3 V
Applications
ATMEGA8515L-8AI is well-suited for embedded control applications requiring ample I/O, such as industrial panel controllers, keyboard matrix scanners, and home automation relay boards. Its 8 MHz speed and 8KB Flash support moderate-complexity firmware for sensor acquisition and display driving. The low 2.7 V minimum supply makes it useful in battery-backed data-logging systems.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for ATMEGA8515L-8AI:
Frequently Asked Questions
How much Flash and SRAM does ATMEGA8515L-8AI provide, and what firmware size can it support?
ATMEGA8515L-8AI includes 8KB of in-system programmable Flash and 512B of SRAM with 512B of EEPROM. These resources support moderate-complexity firmware; at 8 MHz the AVR core executes most instructions in a single clock cycle, making it efficient for control loops that run in under 10 µs per iteration.
What is the minimum supply voltage for ATMEGA8515L-8AI, and can it work directly with 3 V coin-cell batteries?
ATMEGA8515L-8AI operates from 2.7 V to 5.5 V, so it runs directly from a 3 V CR2032 coin cell. At 3 V with the 8 MHz crystal, active current is approximately 3 mA, and power-down mode with watchdog enabled draws less than 5 µA, extending coin-cell life to several months in duty-cycled applications.
When is ATMEGA8515L-8AI a better fit than ATMEGA8515-8AI for cost-sensitive designs?
The 'L' suffix variant is rated for 2.7 V to 5.5 V operation versus the standard part's 4.5 V to 5.5 V, making it the only choice for 3.3 V single-supply designs. Both offer identical 8KB Flash and 35 I/O pins in the 44-pin TQFP, but the L variant avoids a level-shifting regulator, saving at least 2 BOM components and 50 mW in quiescent losses.
Which communication interfaces does ATMEGA8515L-8AI support for connecting to peripherals?
ATMEGA8515L-8AI includes a full-duplex hardware USART supporting up to 1 Mbaud and a 3-wire SPI master/slave interface. The 35 I/O pins can also implement I2C (TWI) in software. These interfaces cover connection to LCD modules, shift registers, sensors, and wireless transceivers in a 44-pin TQFP footprint.
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