ATMEGA88A-CCUR - 8KB Flash 20MHz AVR MCU 32-UFBGA | Microchip
部品番号: ATMEGA88A-CCUR ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
ATMEGA88A-CCUR 概要
An 8-bit AVR microcontroller is a Harvard-architecture RISC processor in the microcontroller unit (MCU) family of embedded processors. Within the power hierarchy, an MCU combines a CPU core, program memory (Flash), data memory (SRAM), non-volatile storage (EEPROM), and peripherals such as timers, UART/USART, SPI, TWI (I2C), and ADC onto a single integrated circuit, forming the core of a power management and control system in embedded products.
Key features include the advanced RISC architecture with 131 powerful instructions, most executed in a single clock cycle; 32 general purpose working registers; picoPower technology for ultra-low sleep-mode consumption; and read-while-write Flash for safe in-system self-programming. Per the DigiKey listing, this variant runs at up to 20 MHz in the 32-UFBGA package.
The AVR core executes out of single-cycle Flash, achieving close to 1 MIPS per MHz throughput. Peripherals include two 8-bit timers and one 16-bit timer with PWM outputs, a 10-bit ADC, master/slave SPI, byte-oriented TWI, and a programmable serial USART. The picoPower technology stack offers multiple sleep modes including power-down and power-save for battery designs.
Typical applications include compact battery-powered sensor nodes, wearable and portable devices where the 4x4 mm UFBGA footprint saves board area, industrial control nodes, and consumer appliances requiring in-circuit serial programming (ICSP) via the MPLAB SNAP debugger.
Design consideration: ball-grid-array packages require a defined PCB land pattern and reflow assembly, and flash programming access to PB6/PB7 (XTAL1/XTAL2 shared pins) must be planned in the layout. Verify the 1.8V/2.7V/4.5V speed-voltage derating curves in the manufacturer datasheet at your target clock frequency.
This page synthesizes distributor listings, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet.
ドロップイン代替品: ATMEGA88A-CCUR — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: ATMEGA88A-CCUR （同一形状・フットプリント） — 相違点: Supply Voltage Range, Mounting Type, Package, Core Processor, EEPROM.
クイック比較ツール — 並列比較する代替部品を選択:
ATMEGA168A-CCUR
✅ ドロップイン✓ 在庫あり
$1.92 / 個
データシートを見る →ATMEGA88PA-CCUR
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$1.08 / 個
データシートを見る →ATMEGA328P-CCUR
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ATMEGA168PA-CCUR
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$0.58 / 個
データシートを見る →ATMEGA88A-CCUR 最大定格＆電気的特性
| Core Processor | AVR |
| Core Size | 8-Bit |
| Speed | 20 MHz |
| Flash Memory | 8 KB (4K x 16) |
| EEPROM | 512 B |
| SRAM | 1 KB |
| General Purpose I/O | 23 |
| Supply Voltage (Vcc/Vdd) | 1.8 V to 5.5 V |
| パッケージ | 32-UFBGA (4x4 mm) |
| 実装タイプ | Surface Mount |
| Oscillator Type | Internal |
| Timers | 2 x 8-bit, 1 x 16-bit |
| Peripherals | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | I2C, SPI, UART/USART |
| ADC Resolution | 10-bit |
| Number of ADC Channels | 8 |
| Architecture | Advanced RISC, 131 instructions |
| Low Power Technology | picoPower |
| In-System Programmable Flash | Yes (read-while-write) |
ATMEGA88A-CCUR 32-ufbga (4x4 mm) ピン配置ガイド
ATMEGA88A-CCUR (32-ufbga (4x4 mm) パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: ATMEGA88A-CCUR.
詳細は データシート をご参照ください。
主な用途
ATMEGA88A-CCUR の用途: 6 件s: Battery-Powered Wearable and Portable Devices, Industrial Control and Sensor Nodes, Compact Consumer Appliances and IoT End Nodes, Motor Control and PWM Actuation, Analog Data Acquisition and Sensor Front Ends, Education, Prototyping and Legacy AVR Designs.
Battery-Powered Wearable and Portable Devices
The ATMEGA88A-CCUR fits battery-powered wearables because Microchip's picoPower technology cuts sleep-mode current to the microamp level while the 4x4 mm 32-UFBGA package fits dense, small-format PCBs inside enclosures of a few cubic centimeters. Operation down to 1.8 V lets the MCU run directly from a single Li coin cell or two alkaline cells without a boost converter, saving board space and quiescent budget. In a typical topology the device sleeps in power-down and wakes on pin-change or timer interrupt, samples a sensor through the 10-bit ADC, and transmits over USART or SPI. The main trade-off: at 1.8 V to 3.3 V the maximum clock must be derated well below 20 MHz, so compute-heavy wake phases should use the 8-13 MHz internal RC region per the Microchip speed-voltage curves.
おすすめ
Industrial Control and Sensor Nodes
In industrial sensor nodes and control points, the ATMEGA88A-CCUR provides 8 KB of self-programmable Flash, a 10-bit ADC with 8 multiplexed channels, and I2C/SPI/USART connectivity sufficient for Modbus-RTU style polling or CAN-adjacent gateway tasks at modest baud rates. The brown-out detector, power-on reset, and watchdog timer integrated in the AVR core give the reset robustness that factory-floor environments demand without external supervisor ICs. Ball-mounting on a 4x4 mm footprint also reduces PCB area in dense terminal-block layouts. Use the EEPROM (512 B) to persist calibration and node-address data across power cycles, and rely on the read-while-write Flash so a bootloader can update firmware over the serial link without stopping the process watchdog. Verify industrial temperature range on the ordering code suffix before deployment in unheated enclosures.
おすすめ
Compact Consumer Appliances and IoT End Nodes
Consumer appliances and IoT end nodes benefit from the ATMEGA88A-CCUR's balance of cost and integration: the AVR core with 131 mostly single-cycle instructions delivers near 1 MIPS per MHz, so a 20 MHz part covers button handling, display driving, and simple protocol stacks without an external controller. The 32-ball UFBGA minimizes PCB area for space-constrained appliance PCBs and smart plugs. Peripherals - two 8-bit and one 16-bit timer with PWM - drive TRIAC phase control, LED dimming, or fan control directly. The internal oscillator removes the need for an external crystal in non-timing-critical products, cutting BOM cost by two passives. Design note: plan ICSP access pads during layout, because the BGA package offers no probe points after assembly; a UART bootloader in Flash enables field updates through the mains-isolated interface.
おすすめ
Motor Control and PWM Actuation
The ATMEGA88A-CCUR suits small motor control tasks using its one 16-bit timer and two 8-bit timers, which provide multiple PWM channels with selectable prescaling, plus dead-time-capable fast PWM for half-bridge drive at low PWM frequencies. The 10-bit ADC reads back shunt current and supply voltage for closed-loop speed regulation on brushed DC or small BLDC motors using sensorless back-EMF sampling. Because the AVR executes interrupt handlers in a deterministic single-cycle-entry pipeline, commutation ISR latency is predictable at 20 MHz. Note the current-limit: the device sources and sinks limited port current per ball, so gate drivers or MOSFET pre-drivers are mandatory between the GPIO and any power stage. The 1.8 V to 5.5 V supply range also permits direct 3.3 V logic coupling to modern gate-driver ICs.
おすすめ
Analog Data Acquisition and Sensor Front Ends
For compact data-acquisition nodes, the ATMEGA88A-CCUR integrates a 10-bit successive-approximation ADC with 8 multiplexed channels, an internal temperature sensor input, an internal 1.1 V/2.56 V reference option, and a differential mode with selectable gain, eliminating a standalone ADC in cost-sensitive designs at sample rates of a few kHz to tens of kHz depending on clock and prescaling. EEPROM storage retains per-unit calibration coefficients, and the USART streams results to a host or radio module. The picoPower modes support duty-cycled sampling: sleep between conversions to average current down to the microamp range. For best noise performance, run AVCC through an LC filter, use the internal 1.1 V reference for ratiometric measurements near low-level signals, and average multiple conversions in firmware - the effective number of bits improves roughly one half bit per 4x averaging.
おすすめ
Education, Prototyping and Legacy AVR Designs
The ATMEGA88A family remains a staple of embedded-systems education and legacy AVR maintenance because the architecture is documented exhaustively in Microchip/Atmel application notes such as AVR094 (Replacing ATmega8 by ATmega88), which confirms pin compatibility between the ATmega8 and ATmega88. The ATMEGA88A-CCUR serves the same role in BGA-based production boards, while its TQFP siblings (ATMEGA88A-AU, ATMEGA88-20PI) serve bench work. Tool support is via the free AVR-GCC toolchain and MPLAB X with the MPLAB SNAP debugger, which implements ICSP through two I/O pins and reset per the Microchip product page. For designs migrating from the ATmega8, AVR094 maps the register and peripheral differences, making the ATMEGA88A the sanctioned successor within the same pinout. University lab kits and reference designs routinely adopt the whole 48A/88A/168A/328P ladder for its common toolchain.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: ATMEGA88A-CCUR — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | ATMEGA168A-CCUR | ATMEGA88PA-CCUR | ATMEGA328P-CCUR |
|---|---|---|---|---|
| Package | 32-UFBGA (4x4 mm) | 32-UFBGA (4x4 mm) - same | 32-UFBGA (4x4 mm) - same | 32-UFBGA (4x4 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Memory | 8 KB (4K x 16) | 16 KB | 8 KB | 32 KB |
| SRAM | 1 KB | 1 KB | 1 KB | 2 KB |
| EEPROM | 512 B | 512 B | 512 B | 1 KB |
| Max Clock Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| GPIO | 23 | 23 | 23 | 23 |
| Supply Voltage | 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 |
| Low Power Technology | picoPower | picoPower | picoPower (enhanced die) | picoPower |
主な差別化要因
- Smallest footprint in the ATmega88A family （vs ATMEGA88A-AU)
- Balanced 8 KB Flash entry point （vs ATMEGA168A-CCUR)
- Same-package memory upgrade path （vs ATMEGA328P-CCUR)
設計ノート
The 32-UFBGA (4x4 mm, 0.5 mm ball pitch) requires a solder-mask-defined or non-solder-mask-defined land pattern per Microchip package drawing, with via-in-pad or dog-bone fanout under the array. Because assembled BGA balls cannot be probed, place test pads for VCC, GND, RESET, XTAL1/XTAL2 (PB6/PB7), and the ICSP MOSI/MISO/SCK balls at the array edge before routing. Recommend at least 4 reflow-grade copper layers or a 2-layer board with local fanout zone; verify ball map against the official Microchip datasheet, not third-party pinout diagrams, before release to fabrication.
The 20 MHz top speed applies only at the high end of the 1.8 V to 5.5 V supply range. For a 3.3 V rail, derate the system clock to roughly 8-13 MHz per the speed-versus-VCC curve in the Microchip datasheet; running fuses set for 20 MHz at 3.3 V produces marginal timing failures, often manifesting only at temperature extremes. Add 100 nF decoupling on every VCC/GND ball pair plus 10 uF bulk at the rail entry, and connect AVCC to VCC through an LC or RC filter when using the ADC to preserve the 10-bit effective resolution.
The PB6/PB7 balls serve as both general I/O and XTAL1/XTAL2 oscillator pins; once external-clock fuses are burned, they are consumed by the crystal and cannot be reclaimed, and a wrong fuse selection can disable ICSP access - a known BGA-recovery nightmare. Always use slow fuse programming steps with an MPLAB SNAP or STK500, verify with a readback before removing power, and keep RESET accessible on a test pad. When migrating from ATmega8, consult Microchip application note AVR094: ATmega88 is pin-compatible but not a binary drop-in, with register-level differences in timer and ADC configuration.
コンプライアンス情報
Compliance status not explicitly stated in verified web data retrieved 2026-09-19; confirm on Microchip product page ordering details or request a material declaration.