ATMEGA88V-15MT - 8-bit AVR MCU 8KB Flash 8MHz QFN-32 | Microchip
MPN: ATMEGA88V-15MT ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.85 | $1.85 |
| 10 | $1.66 | $16.60 |
| 100 | $1.42 | $142.00 |
| 500 | $1.24 | $620.00 |
| 1,000 | $1.08 | $1,080.00 |
ATMEGA88V-15MT Overview
An 8-bit AVR microcontroller is a Harvard-architecture RISC processor that executes most instructions in a single clock cycle. Within the power-management hierarchy, the ATmega88 family sits in Microchip's low-power ATmega AVR line, positioned above the ATmega48 and below the ATmega168 and ATmega328, sharing the same core, pinout, and peripheral set.
Key features include read-while-write ISP flash, 23 general-purpose I/O lines, 32 general-purpose working registers, and three flexible timer/counters with compare modes. The picoPower technology delivers very low sleep-mode consumption, making the part attractive for battery-powered designs. The 15 speed-grade suffix denotes operation up to 8 MHz across the V-grade voltage range, and the MLF/QFN-32 exposed-pad package improves thermal and ground performance on compact boards.
The advanced RISC architecture executes 130 powerful instructions, most in a single cycle, yielding up to 8 MIPS at 8 MHz. On-chip peripherals include a 10-bit ADC, USART, two-wire interface (I2C-compatible), SPI, and an internal calibrated RC oscillator, allowing fully self-contained single-chip designs without external crystals in many applications.
Typical applications include battery-powered sensor nodes, industrial control panels, consumer appliances, and low-cost embedded controllers. The wide V-grade supply range supports both 3.3V and 5V systems.
A key design consideration: this device is mature and the newer ATMEGA88A/88PA family supersedes it, so new designs should verify long-term supply or plan a footprint-compatible migration.
This page synthesizes verified distributor data, drop-in alternatives, pinout, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for ATMEGA88V-15MT — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with ATMEGA88V-15MT (same form factor and footprint) — differing in Package, Flash Memory, Operating Temperature, Communication Interfaces, Instructions.
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View Datasheet →ATMEGA88V-15MT Maximum Ratings & Electrical Characteristics
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 8 MHz |
| Flash Memory | 8KB (4K x 16) |
| EEPROM | 512B |
| SRAM | 1KB |
| GPIO Count | 23 |
| Working Registers | 32 x 8-bit general purpose |
| Instructions | 130 powerful instructions, most single-cycle |
| Timers/Counters | 3 flexible timer/counters with compare modes |
| Connectivity | USART, SPI, Two-Wire Interface (I2C-compatible) |
| ADC | 10-bit |
| Package | 32-QFN (5x5 mm) MLF with exposed pad |
| Mounting Type | Surface Mount |
| Technology | picoPower low-power |
| Programming | In-System Programmable (ISP), read-while-write |
ATMEGA88V-15MT Pin Configuration
| Pin 1 | PD3 — Port D, bit 3 (GPIO) |
| Pin 2 | PD4 — Port D, bit 4 (GPIO / XCK/T0) |
| Pin 3 | GND — Ground |
| Pin 4 | VCC — Digital supply voltage |
| Pin 5 | GND — Ground |
| Pin 6 | VCC — Digital supply voltage |
| Pin 7 | PB6 — Port B, bit 6 (XTAL1/TOSC1 - crystal input or GPIO) |
| Pin 8 | PB7 — Port B, bit 7 (XTAL2/TOSC2 - crystal output or GPIO) |
| Pin 9 | PD5 — Port D, bit 5 (GPIO / T1 / OC0B) |
| Pin 10 | PD6 — Port D, bit 6 (GPIO / AIN0 / OC0A) |
| Pin 11 | PD7 — Port D, bit 7 (GPIO / AIN1) |
| Pin 12 | PB0 — Port B, bit 0 (GPIO / ICP1 / CLKO) |
| Pin 13 | PB1 — Port B, bit 1 (GPIO / OC1A) |
| Pin 14 | PB2 — Port B, bit 2 (GPIO / SS / OC1B) |
| Pin 15 | PB3 — Port B, bit 3 (GPIO / MOSI / OC2A) |
| Pin 16 | PB4 — Port B, bit 4 (GPIO / MISO) |
| Pin 17 | PB5 — Port B, bit 5 (GPIO / SCK) |
| Pin 18 | AVCC — Analog supply voltage for ADC |
| Pin 19 | ADC6 — ADC input channel 6 |
| Pin 20 | AREF — Analog reference voltage for ADC |
| Pin 21 | GND — Ground |
| Pin 22 | ADC7 — ADC input channel 7 |
| Pin 23 | PC0 — Port C, bit 0 (GPIO / ADC0 / SCL) |
| Pin 24 | PC1 — Port C, bit 1 (GPIO / ADC1 / SDA) |
| Pin 25 | PC2 — Port C, bit 2 (GPIO / ADC2) |
| Pin 26 | PC3 — Port C, bit 3 (GPIO / ADC3) |
| Pin 27 | PC4 — Port C, bit 4 (GPIO / ADC4 / SDA) |
| Pin 28 | PC5 — Port C, bit 5 (GPIO / ADC5 / SCL) |
| Pin 29 | PC6 — Port C, bit 6 (RESET - active-low reset) |
| Pin 30 | PD0 — Port D, bit 0 (GPIO / RXD - USART receive) |
| Pin 31 | PD1 — Port D, bit 1 (GPIO / TXD - USART transmit) |
| Pin 32 | PD2 — Port D, bit 2 (GPIO / INT0 - external interrupt) |
Typical Applications
ATMEGA88V-15MT is suitable for 6 applications: Battery-Powered Sensor Nodes, Industrial Control Panels, Consumer Appliance Control, Hobby and Educational Embedded Systems, Motor Control and PWM Actuator Drivers, Legacy System Maintenance and Repair.
Battery-Powered Sensor Nodes
The ATMEGA88V-15MT fits battery-powered sensor nodes because picoPower technology minimizes current in power-down and power-save sleep modes, and the V speed grade supports low-voltage 3.3V lithium or two-cell alkaline supplies without a regulator. The internal calibrated RC oscillator eliminates the cost and startup current of an external crystal in non-timing-critical nodes. Typical usage places the MCU in power-down between sensor reads, waking on watchdog or pin-change interrupt to sample a sensor through the 10-bit ADC and transmit over USART or SPI. The quantified trade-off: sleep-current savings versus the newer ATMEGA88PB are modest, but the 32-QFN 5x5 mm footprint keeps node PCBs under 20x20 mm.
Recommended
Industrial Control Panels
In industrial control panels, the ATMEGA88V-15MT serves as a low-cost logic controller reading switches, driving relays, and reporting status on USART. Its 23 GPIO lines handle button matrices and LED indicators directly, while three timer/counters generate PWM for actuator drive or measure input pulse trains. Running from a 5V industrial rail with the V-family wide voltage tolerance, it tolerates supply sag common in panel wiring. The read-while-write ISP flash allows field firmware updates over a bootloaders USART link without removing the device, a practical benefit for installed equipment. The 32-QFN exposed pad provides a solid ground connection that helps ADC accuracy in electrically noisy cabinets; keep analog sensor traces away from relay coils.
Recommended
Consumer Appliance Control
Consumer appliances such as coffee makers, fans, and small heaters use the ATMEGA88V-15MT as the main user-interface and control MCU. The two-wire interface (I2C-compatible) connects to EEPROM or display drivers, SPI drives segment LCD controllers, and timer PWM dims LEDs or controls triac firing via zero-cross timing. The 8KB flash comfortably holds button debouncing, state machines, and EEPROM-backed user settings in the 512B EEPROM. Cost matters in this segment, and the single-chip design with internal oscillator avoids crystal BOM cost. Design consideration: the obsolete status means appliance makers should dual-approve the pin-compatible ATMEGA88PB-ANR so future builds continue without redesign.
Recommended
Hobby and Educational Embedded Systems
The ATmega88 family, including the ATMEGA88V-15MT, is a staple of hobby and education platforms because the AVR core is supported by free toolchains (AVR-GCC, avrdude) and the ISP programming interface needs only a few wires. The 8KB flash and 1KB SRAM are large enough for meaningful C programs while small enough to teach resource-aware embedded programming. The 10-bit ADC supports analog experiments, timers teach PWM and input capture, and USART connects to PCs over USB-serial bridges. The 32-QFN package teaches fine-pitch hand soldering, though TQFP variants are friendlier for beginners. Performance of up to 8 MIPS at 8 MHz covers robotics, LED matrices, and simple data loggers.
Recommended
Motor Control and PWM Actuator Drivers
Three flexible timer/counters with compare modes make the ATMEGA88V-15MT suitable for small motor and actuator control: one timer generates center-aligned or fast PWM for a brushed DC motor driver, another handles encoder input capture for speed measurement, and the third provides a system tick. At 8 MHz, PWM resolution reaches 8-bit at roughly 31 kHz, appropriate for fan and pump control. USART or two-wire interface lets a host controller set speed commands, while the 10-bit ADC reads current-sense shunts for stall detection. Use the exposed pad as low-inductance ground for switching noise control. For multi-channel or higher-resolution PWM, the ATMEGA88PB-ANR successor adds enhanced PWM peripherals in the same footprint.
Recommended
Legacy System Maintenance and Repair
Because the ATMEGA88V-15MT is obsolete, its primary remaining application is repairing and sustaining legacy equipment whose firmware is certified against this exact device. Repair shops stock the part to keep industrial machines, medical accessories, and installed control boards alive. Flashing original hex images via ISP restores function without firmware revalidation, which is the main reason to use the original part rather than a successor in repair scenarios. The 32-QFN footprint matches the original board pad layout exactly. Practical guidance: verify the EEPROM contents (calibration data, serial numbers) are preserved or reprogrammed during replacement, and keep ATMEGA88PB-ANR qualified as the fallback when original stock runs out.
Recommended
Recommended Products Summary
Engineering reference data for ATMEGA88V-15MT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATMEGA88PB-ANR | ATMEGA88PA-ANR | ATMEGA48PA-MU | ATMEGA168PA-MU |
|---|---|---|---|---|---|
| Package | 32-QFN (5x5 mm) MLF | 32-QFN (5x5 mm) MLF - same | 32-QFN (5x5 mm) MLF - same | 32-QFN (5x5 mm) MLF - same | 32-QFN (5x5 mm) MLF - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 8KB | 8KB | 8KB | 4KB | 16KB |
| Max Speed | 8 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| SRAM | 1KB | 1KB | 1KB | 512B | 1KB |
| EEPROM | 512B | 512B | 512B | 256B | 512B |
| Lifecycle Status | Obsolete | Active | Active | Active | Active |
| Low-Power Technology | picoPower (V generation) | picoPower, lowest sleep current | picoPower (P generation) | picoPower (P generation) | picoPower (P generation) |
Key Differentiators
- Original certified device for legacy firmware (vs ATMEGA88PB-ANR)
- Lower maximum speed is a known envelope (vs ATMEGA88PA-ANR)
- Full 8KB flash within the family floor (vs ATMEGA48PA-MU)
Design Notes
The 32-QFN MLF package has a large exposed pad on the underside that must be soldered to a ground plane array of thermal vias. This pad is the primary ground connection for the die; skipping it causes unreliable grounding, degraded ADC accuracy, and poor thermal performance. Use a 3x3 via array under the pad with solder paste divided into segments to avoid voiding. Per standard MLF assembly practice, inspect via X-ray on first articles.
Decouple each VCC pin (pins 4 and 6) with 100nF ceramic capacitors placed within 2 mm of the pads, plus one bulk 4.7uF-10uF capacitor near the supply entry. Connect AVCC (pin 18) to VCC through an LC filter (10uH inductor with 100nF) when ADC accuracy matters, and tie AREF (pin 20) to ground through 100nF when using internal reference. Estimated: ADC noise improves measurably with a clean AVCC island on a 2-layer board.
PC6 is RESET by default - do not repurpose it as GPIO unless you disable reset programming via the RSTDISBL fuse, which bricks ISP access. When using PB6/PB7 as GPIO instead of a crystal, set the CKSEL fuses to internal RC oscillator first, otherwise the chip will not start. Before migrating firmware to the ATMEGA88PB-ANR, update register headers: the PB generation changes some Timer1 and PWM register names even though the pinout is identical.
Compliance Information
Compliance data not present in the provided verified web data; MT suffix conventionally denotes lead-free tray packaging for this Atmel/Microchip family, but verify against the official Microchip product page before certification claims.
