ATMEGA88V-10AU - 8KB AVR 8-Bit MCU 10MHz | Microchip | TQFP-32
MPN: ATMEGA88V-10AU ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.42 | $2.42 |
| 10 | $2.18 | $21.80 |
| 100 | $1.94 | $194.00 |
| 500 | $1.75 | $875.00 |
| 1,000 | $1.58 | $1,580.00 |
ATMEGA88V-10AU Overview
An AVR microcontroller is a Harvard-architecture 8-bit RISC device that executes most instructions in a single clock cycle, delivering up to 1 MIPS per MHz. Within the product taxonomy it sits under microcontrollers (MCU) -> integrated circuits -> semiconductors, and the ATmega family is the classic general-purpose branch of the AVR line, positioned between the tinyAVR and megaAVR performance tiers.
Key features include 8 KB ISP Flash with read-while-write, 512 B EEPROM, 1 KB SRAM, 23 GPIO lines, three flexible timer/counters with compare modes, an 8-channel 10-bit ADC, a programmable USART, a byte-oriented Two-Wire Serial Interface (I2C), an SPI port, and debugWIRE on-chip debug. The picoPower design keeps active current low, making the device suitable for battery-powered and always-on embedded control.
The ATmega88V is fabricated in Microchip's low-power CMOS process and uses the enhanced AVR RISC core with 32 general-purpose working registers. Because the core is clocked directly from the system clock with no divider penalty, throughput scales linearly with frequency, and the wide 1.8 V to 5.5 V supply range allows direct operation from single Li-Ion cells or regulated 3.3 V and 5 V rails without level shifting.
Typical applications include industrial sensor nodes, consumer appliance control boards, battery-powered data loggers, motor and relay control, and legacy ATmega8/ATmega48 designs being migrated to a pin-compatible modern device. The 32-TQFP footprint is shared across the ATmega48/88/168 family, so firmware and layout can be reused across memory densities.
When designing with this device, decouple every VCC/AVCC pin with a 100 nF ceramic capacitor placed within a few millimeters of the pin, and keep the AREF pin bypassed when the ADC is used. The 10 MHz maximum frequency at 1.8 V-5.5 V means the part is not a drop-in for 16 MHz or 20 MHz ATmega88 variants, which require at least 2.7 V or 4.5 V respectively.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single reference for procurement and layout decisions.
Drop-in alternatives for ATMEGA88V-10AU — 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-10AU (same form factor and footprint) — differing in Package, Maximum Clock Frequency, Supply Voltage Range, Instruction Set, Timers/Counters.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ATMEGA88V-10AUR
✅ Drop-In✓ In Stock
$2.85 / Unit
View Datasheet →ATMEGA88V-10AJ
✅ Drop-In✓ In Stock
$2.15 / Unit
View Datasheet →ATMEGA88PA-AUR
✅ Drop-In✓ In Stock
$0.82 / Unit
View Datasheet →ATMEGA88A-AU
✅ Drop-In✓ In Stock
$1.52 / Unit
View Datasheet →ATMEGA88-20AU
✅ Drop-In✓ In Stock
$2.33 / Unit
View Datasheet →ATMEGA88-15AT
✅ Drop-In✓ In Stock
$1.15 / Unit
View Datasheet →ATMEGA88V-10AU Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit AVR RISC |
| Program Memory Size | 8 KB (4K x 16) Flash |
| Program Memory Type | In-System Programmable (ISP) Flash with read-while-write |
| EEPROM Size | 512 B |
| SRAM Size | 1 KB |
| Maximum Clock Frequency | 10 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V |
| Number of I/O Lines | 23 |
| General Purpose Working Registers | 32 |
| ADC Resolution | 10-bit |
| ADC Channels | 8 |
| Timer/Counters | 3 (two 8-bit, one 16-bit) with compare modes |
| Serial Interfaces | USART, SPI, Two-Wire Serial Interface (I2C) |
| On-Chip Debug | debugWIRE |
| Package | 32-TQFP (7x7 mm, 0.80 mm pitch) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 C to +85 C |
| Instruction Set | 130 powerful instructions, most single-clock cycle |
| External Interrupts | 24 |
| RoHS Status | Compliant |
ATMEGA88V-10AU Pin Configuration
| Pin 1 | PD3 — Port D bit 3, also INT1 / OC2B |
| Pin 2 | PD4 — Port D bit 4, also T0 / XCK |
| 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, also XTAL1 / TOSC1 |
| Pin 8 | PB7 — Port B bit 7, also XTAL2 / TOSC2 |
| Pin 9 | PD5 — Port D bit 5, also T1 / OC0B |
| Pin 10 | PD6 — Port D bit 6, also AIN0 / OC0A |
| Pin 11 | PD7 — Port D bit 7, also AIN1 |
| Pin 12 | PB0 — Port B bit 0, also ICP1 / CLKO |
| Pin 13 | PB1 — Port B bit 1, also OC1A |
| Pin 14 | PB2 — Port B bit 2, also SS / OC1B |
| Pin 15 | PB3 — Port B bit 3, also MOSI / OC2A |
| Pin 16 | PB4 — Port B bit 4, also MISO |
| Pin 17 | PB5 — Port B bit 5, also SCK / SCL |
| Pin 18 | AVCC — Analog supply voltage for ADC |
| Pin 19 | ADC6 — Analog input channel 6 |
| Pin 20 | AREF — Analog reference voltage for ADC |
| Pin 21 | GND — Ground |
| Pin 22 | ADC7 — Analog input channel 7 |
| Pin 23 | PC0 — Port C bit 0, also ADC0 |
| Pin 24 | PC1 — Port C bit 1, also ADC1 |
| Pin 25 | PC2 — Port C bit 2, also ADC2 |
| Pin 26 | PC3 — Port C bit 3, also ADC3 |
| Pin 27 | PC4 — Port C bit 4, also ADC4 / SDA |
| Pin 28 | PC5 — Port C bit 5, also ADC5 / SCL |
| Pin 29 | PC6 — Port C bit 6, also RESET (active low) |
| Pin 30 | PD0 — Port D bit 0, also RXD |
| Pin 31 | PD1 — Port D bit 1, also TXD |
| Pin 32 | PD2 — Port D bit 2, also INT0 |
Typical Applications
ATMEGA88V-10AU is suitable for 6 applications: Industrial Sensor Nodes, Battery-Powered Data Loggers, Consumer Appliance Control Boards, Motor and Relay Control, Legacy ATmega8 / ATmega48 Migration, Embedded Education and Prototyping.
Industrial Sensor Nodes
The ATMEGA88V-10AU fits industrial sensor nodes because its 1.8 V to 5.5 V supply range allows direct interfacing with both 3.3 V and 5 V sensor front ends, and its 8-channel 10-bit ADC digitizes analog transducer outputs without an external converter. The 23 GPIO lines are enough for a multi-sensor node with status LEDs and a relay driver. Running at 10 MHz, the AVR core delivers up to 10 MIPS, which is ample for filtering, scaling, and Modbus or custom serial protocol handling. The 8 KB Flash holds the application plus a bootloader, while the 512 B EEPROM stores calibration coefficients that survive power cycles. A typical implementation places the MCU on a 4-layer board with a 100 nF decoupling capacitor on each VCC/AVCC pin and a 10 uF bulk capacitor on the rail; the trade-off versus a 32-bit Cortex-M0 is lower throughput but simpler 5 V-tolerant I/O and a smaller code footprint.
Recommended
Battery-Powered Data Loggers
The ATMEGA88V-10AU is well suited to battery-powered data loggers because it operates down to 1.8 V, allowing direct connection to a single Li-Ion cell without a boost converter, and its picoPower CMOS process supports multiple sleep modes that cut current to microampere levels between samples. The 512 B EEPROM provides non-volatile storage for calibration data and configuration, while the 1 KB SRAM buffers ADC samples before they are written to an external SPI Flash or SD card. The 10-bit ADC samples sensor outputs at up to 15 kSPS, and the 16-bit timer can wake the CPU on a precise periodic schedule. In a typical design the MCU sleeps in power-down mode and wakes on the watchdog or timer interrupt, samples, logs, and returns to sleep; the trade-off is that the 10 MHz V-grade part is slower than a 20 MHz ATmega88PA, so high-sample-rate logging may require the faster variant.
Recommended
Consumer Appliance Control Boards
The ATMEGA88V-10AU is a common choice for consumer appliance control boards because its 5.5 V maximum supply and 5 V-tolerant I/O allow direct drive of TRIAC gates, relays, and buzzer transistors without level shifters, and its 23 GPIO lines cover keypad scanning, LED indication, and sensor inputs on a single device. The three timer/counters generate the PWM and phase-control timing needed for motor speed and heater regulation, while the USART and I2C interfaces connect to display drivers and EEPROM. The 8 KB Flash is sufficient for a state-machine control loop plus a bootloader for field firmware updates over UART. A typical board uses the internal 8 MHz RC oscillator to save the cost of a crystal, accepting about 3 percent frequency tolerance; the trade-off versus a dedicated appliance MCU is the absence of integrated high-voltage drivers, so external TRIAC and relay drivers are still required.
Recommended
Motor and Relay Control
The ATMEGA88V-10AU suits motor and relay control because its three timer/counters with compare modes generate up to six PWM channels for H-bridge or half-bridge gate drive, and the 10-bit ADC can read current-sense shunts for overcurrent protection. The 16-bit Timer1 provides the precise commutation timing needed for brushed DC and stepper motors, while the analog comparator and 24 external interrupts allow fast fault response without polling. At 10 MHz the core executes most instructions in one clock cycle, so a 20 kHz PWM loop with current regulation fits comfortably in the 8 KB Flash. A typical implementation uses the MCU to drive an external gate driver such as a half-bridge IC, with the ADC sampling the shunt during the PWM on-time; the trade-off is that the AVR has no dedicated motor-control peripheral, so all commutation logic runs in firmware.
Recommended
Legacy ATmega8 / ATmega48 Migration
The ATMEGA88V-10AU is a natural migration target for legacy ATmega8 and ATmega48 designs because Microchip application note AVR094 documents that the ATmega88 is pin compatible with the ATmega8 and has a very similar feature set, and the ATmega48/88/168 family shares the same 32-TQFP footprint. Migrating from ATmega48 doubles Flash to 8 KB and SRAM to 1 KB without a layout change, while migrating from ATmega8 gains the newer picoPower process and a wider 1.8 V to 5.5 V supply range. The USART, SPI, I2C, and timer peripherals are register-compatible enough that most firmware ports require only header and fuse changes. The trade-off is that the ATmega88V is a 10 MHz V-grade part, so designs that ran an ATmega8 at 16 MHz must either accept 10 MHz or move to the 20 MHz ATmega88-20AU with a 4.5 V minimum supply.
Recommended
Embedded Education and Prototyping
The ATMEGA88V-10AU is widely used in embedded education and prototyping because the AVR architecture is supported by the free Atmel Studio / Microchip Studio IDE, the avr-gcc toolchain, and the Arduino ecosystem, and the 32-TQFP package is small enough for compact student boards while remaining hand-solderable with practice. The debugWIRE interface provides on-chip debugging through the single RESET pin, so no extra debug header pins are consumed. The 8 KB Flash and 1 KB SRAM are sufficient for teaching GPIO, timers, interrupts, ADC, and serial communication without overwhelming students. A typical lab board breaks out all 23 I/O lines to headers and includes an ISP programming connector; the trade-off versus a DIP-packaged ATmega88 is that the TQFP requires an adapter or reflow for breadboard use.
Recommended
Recommended Products Summary
Engineering reference data for ATMEGA88V-10AU — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ATMEGA88V-10AUR | ATMEGA88V-10AJ | ATMEGA88PA-AU | ATMEGA88A-AU | ATMEGA88-20AU |
|---|---|---|---|---|---|---|
| Package | 32-TQFP (7x7) | 32-TQFP (7x7) - same | 32-TQFP (7x7) - same | 32-TQFP (7x7) - same | 32-TQFP (7x7) - same | 32-TQFP (7x7) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Maximum Clock Frequency | 10 MHz | 10 MHz | 10 MHz | 20 MHz | 20 MHz | 20 MHz |
| Operating Voltage Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 4.5 V to 5.5 V |
| Flash Memory | 8 KB (4K x 16) | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB |
| SRAM / EEPROM | 1 KB SRAM / 512 B EEPROM | 1 KB / 512 B | 1 KB / 512 B | 1 KB / 512 B | 1 KB / 512 B | 1 KB / 512 B |
| I/O Lines | 23 | 23 | 23 | 23 | 23 | 23 |
| ADC | 10-bit, 8 channels | 10-bit, 8 channels | 10-bit, 8 channels | 10-bit, 8 channels | 10-bit, 8 channels | 10-bit, 8 channels |
| Packaging | Tray | Tape & Reel | Tray | Tray | Tray | Tray |
| Automotive Grade | No | No | No | No | No | No |
Key Differentiators
- Widest supply range in the ATmega88 family (vs ATMEGA88-20AU)
- 10 MHz guaranteed across the full supply range (vs ATMEGA88PA-AU)
- Pin-compatible with the ATmega8 per Microchip AVR094 (vs ATMEGA88A-AU)
- Tray packaging for low-volume and lab builds (vs ATMEGA88V-10AUR)
Design Notes
Decouple every VCC and AVCC pin with a 100 nF ceramic capacitor placed within a few millimeters of the pin, and add a 10 uF bulk capacitor on the board rail. The ATmega88V has multiple VCC pins (pins 4 and 6) plus a separate AVCC (pin 18); omitting the AVCC decoupling degrades ADC accuracy. If the ADC is used, bypass AREF (pin 20) with a 100 nF capacitor to the analog ground. Keep the analog ground return separate from the digital ground and join them at a single point under the device.
Route the crystal or resonator as close as possible to XTAL1 (pin 7) and XTAL2 (pin 8) with short, symmetric traces and guard them with ground. Keep the load capacitors (typically 12-22 pF for a quartz crystal) on the same side of the board as the MCU. For the internal 8 MHz RC oscillator, no external components are needed, but expect roughly 3 percent frequency tolerance over temperature and supply, which is acceptable for UART at low baud rates only if the baud-rate error budget is checked.
Do not confuse the 10 MHz V-grade ATMEGA88V-10AU with the 16 MHz or 20 MHz ATmega88 variants. The V-grade part is specified for 10 MHz across 1.8 V to 5.5 V, while the 16 MHz part requires at least 2.7 V and the 20 MHz part requires at least 4.5 V. Substituting a faster part into a 1.8 V design will violate the speed-grade supply requirement. Also note that the RESET pin (PC6, pin 29) doubles as an I/O; if used as GPIO, the ISP programming interface and debugWIRE are disabled.
The 32-TQFP (7x7 mm, 0.80 mm pitch) footprint is shared across the ATmega48/88/168 family, so a single land pattern supports 4 KB, 8 KB, and 16 KB Flash options. This allows a memory upgrade without a board respin. Provide an ISP header on MOSI, MISO, SCK, RESET, VCC, and GND for in-system programming, and keep the ISP traces short to avoid signal integrity issues at the maximum ISP clock. Estimated: at 10 MHz and 5 V, core current is on the order of a few milliamps, so a standard 2 oz copper pour is sufficient without thermal vias.
Compliance Information
Distributor listings and the Microchip product page indicate RoHS compliance and lead-free construction. The ATMEGA88V-10AU is not AEC-Q100 qualified; automotive-grade ATmega88 variants such as the ATMEGA88-15AT should be used for automotive designs. Halogen-free status was not stated in the retrieved data.
