ATMEGA64C1-15AZ - 8-Bit AVR MCU 64KB Flash 16MHz | Microchip
部品番号: ATMEGA64C1-15AZ ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $6.42 | $6.42 |
| 10 | $5.78 | $57.80 |
| 100 | $5.14 | $514.00 |
| 500 | $4.6 | $2,300.00 |
| 1,000 | $4.06 | $4,060.00 |
ATMEGA64C1-15AZ 概要
A microcontroller (MCU) is a single integrated circuit that combines a processor core, program memory, data memory, and peripherals on one chip, forming the lowest tier of the embedded computing hierarchy (MCU -> embedded processor -> microprocessor -> system-on-chip). The AVR architecture, originally developed by Atmel and now part of Microchip Technology, executes most of its 131 instructions in a single clock cycle through its advanced RISC pipeline with 32 general-purpose working registers, delivering high code efficiency and low power consumption for deeply embedded control tasks.
Key features of the ATMEGA64C1 include 64 KB of self-programmable Flash with read-while-write capability, enabling in-field firmware updates; 2 KB of non-volatile EEPROM for calibration data storage; and 27 general-purpose I/O lines. As a member of the automotive-qualified ATmega C1 family, it integrates a CAN 2.0A/B controller and LIN-capable serial interfaces for in-vehicle network connectivity, along with flexible timers for motor control and powertrain-adjacent functions.
The AVR core's single-cycle execution and Harvard architecture (separate program and data buses) allow sustained throughput near 16 MIPS at 16 MHz. The internal oscillator removes the need for an external crystal in many applications, while an external clock option supports timing-critical designs. The 15-speed-grade suffix indicates automotive temperature qualification, and the AZ suffix denotes a RoHS-compliant, lead-free TQFP package suitable for reflow soldering in high-volume automotive assembly lines.
Typical applications include automotive body electronics, LIN/CAN gateway nodes, window lifter and wiper controllers, HVAC actuators, and industrial systems requiring robust 125C-rated 8-bit control with Flash self-programming.
When designing with this device, budget Flash and SRAM carefully: the 4 KB SRAM constrains large protocol buffers, so keep CAN receive queues compact and use EEPROM sparingly to preserve endurance. Place 100 nF decoupling capacitors directly at each VCC pin pair of the TQFP-32.
This page synthesizes verified distributor inventory data, drop-in family alternatives, pricing tiers, and practical design notes not consolidated in the manufacturer datasheet.
ドロップイン代替品: ATMEGA64C1-15AZ — 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: ATMEGA64C1-15AZ （同一形状・フットプリント） — 相違点: Package, ADC, SRAM, Operating Temperature, Mounting Type.
クイック比較ツール — 並列比較する代替部品を選択:
ATMEGA64M1-15AZ
✅ ドロップイン✓ 在庫あり
$4.68 / 個
データシートを見る →ATMEGA32C1-15AZ
✅ ドロップイン✓ 在庫あり
$2.95 / 個
データシートを見る →ATMEGA32M1-AU
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$4.98 / 個
データシートを見る →ATMEGA16C1-15AZ
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ATMEGA16M1-15AZ
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$2.52 / 個
データシートを見る →ATMEGA64C1-15AZ 最大定格＆電気的特性
| Core Architecture | 8-bit AVR RISC |
| Max CPU Speed | 16 MHz |
| Flash Memory | 64 KB (32K x 16), ISP with read-while-write |
| EEPROM | 2 KB |
| SRAM | 4 KB (4K x 8) |
| General Purpose I/O | 27 lines |
| Working Registers | 32 x 8-bit general purpose |
| Instruction Set | 131 instructions, mostly single-cycle |
| Oscillator Type | Internal |
| パッケージ | 32-TQFP (7 x 7 mm) |
| 実装タイプ | Surface Mount |
| 動作温度 | Up to 125 degrees C (automotive grade) |
| CAN Controller | Yes (CAN 2.0A/B, ATmega C1 family feature) |
| Packaging | Tape & Reel (TR) |
| Terminal Form | Gull wing |
ATMEGA64C1-15AZ 32-tqfp (7 x 7 mm) ピン配置ガイド
ATMEGA64C1-15AZ (32-tqfp (7 x 7 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: ATMEGA64C1-15AZ.
詳細は データシート をご参照ください。
主な用途
ATMEGA64C1-15AZ の用途: 6 件s: Automotive Body Electronics, LIN/CAN Gateway and Network Nodes, Wiper and Window Lifter Motor Control, HVAC Actuator and Blower Control, Industrial CAN-Based Sensor Nodes, In-Field Upgradeable ECU Firmware Platform.
Automotive Body Electronics
The ATMEGA64C1-15AZ fits automotive body-electronic control nodes because it combines an automotive temperature rating (up to 125 degrees C per Mouser's listing) with an integrated CAN controller and 27 GPIO lines - exactly the I/O density needed for window lifters, mirror adjustment, and lighting modules. Its 64 KB self-programmable Flash supports read-while-write firmware updates, letting suppliers patch ECU software in the field without swapping hardware, while the 2 KB EEPROM preserves calibration and fault logs across power cycles. In a typical node, the CAN controller interfaces to the vehicle bus while timers drive H-bridge loads; the internal oscillator reduces BOM cost, though a crystal is recommended where CAN bit-timing tolerance is tight. Design trade-off: the 4 KB SRAM limits simultaneous bus message buffering, so message queues should be sized conservatively.
おすすめ
LIN/CAN Gateway and Network Nodes
In-vehicle sub-network gateways benefit from the ATMEGA64C1-15AZ's CAN 2.0A/B controller and LIN-capable serial interfaces, which let a single 8-bit MCU bridge low-cost LIN actuators to the CAN backbone without an external protocol chip. The 16 MHz AVR core executes the 131-instruction RISC set at close to 16 MIPS, sufficient for lightweight routing tables and message filtering, while 4 KB SRAM holds small mailbox buffers. The 125C automotive rating and gull-wing 32-TQFP (7 x 7 mm) package suit under-dash and under-hood-adjacent modules subjected to thermal cycling. Because the internal oscillator is factory calibrated, cost-sensitive gateway nodes can omit the crystal on the LIN side; a crystal is still advised for CAN. The generous 64 KB Flash accommodates diagnostic stacks (UDS-style) that smaller 16-32 KB variants cannot hold.
おすすめ
Wiper and Window Lifter Motor Control
DC-motor loads such as wipers and window lifters are a classic fit for the C1 family: the ATMEGA64C1-15AZ provides flexible timers plus the CAN/LIN connectivity that modern body ECUs require, all in one 16 MHz 8-bit AVR. The 27 GPIO lines drive gate circuits and read Hall-effect or reed position feedback, while the 4 KB SRAM supports stall-detection algorithms with modest state machines. Its 125 degrees C rating survives the hot zones near door and cowl modules, and the 2 KB EEPROM stores end-stop learning positions that must persist through battery disconnects. In practice the MCU outputs PWM to an external pre-driver or H-bridge; it does not integrate high-current drivers, so budget a discrete stage. Firmware updates over the CAN bus leverage the read-while-write Flash feature for field recalibration of anti-pinch thresholds.
おすすめ
HVAC Actuator and Blower Control
HVAC modules demand long service life at elevated ambient temperatures, and the ATMEGA64C1-15AZ addresses this with an automotive-grade 125C rating, robust AVR architecture, and enough memory (64 KB Flash, 2 KB EEPROM) to host damper-position calibration tables and blower-fault logs. The internal oscillator simplifies the bill of materials for cost-driven climate modules, while flexible timer peripherals generate PWM for blower speed stages and stepper-driven blend-door actuators. The CAN controller connects the node to the climate control head, and 27 GPIO lines handle position feedback from potentiometers or Hall sensors on each flap. Designers should note the 5-V-tolerant, 8-bit ADC-style analog inputs of the AVR family for feedback conditioning, and should verify the exact analog channel count in the Microchip datasheet before finalizing sensor multiplexing. The 32-TQFP reflows cleanly on standard automotive SMT lines.
おすすめ
Industrial CAN-Based Sensor Nodes
Beyond automotive, the ATMEGA64C1-15AZ serves industrial CANopen-style sensor and actuator nodes where a 125C-capable 8-bit MCU with an integrated CAN controller simplifies design. Compared with general-purpose ATmega parts, the C1 variant saves board area by embedding the CAN controller, and the 64 KB Flash provides room for protocol stacks and node-configuration stores in the 2 KB EEPROM. The 16 MHz RISC core delivers roughly 16 MIPS, adequate for filtering tasks on analog sensor channels, while 27 GPIO lines drive status indicators and local outputs. The internal oscillator permits crystal-less operation for less timing-critical industrial nodes; for CAN bus compliance at 500 kbit/s, a crystal is recommended. Its 32-TQFP 7 x 7 mm footprint and tape-and-reel delivery support automated assembly in mid-to-high-volume industrial products, and read-while-write Flash enables field parameter updates over the bus.
おすすめ
In-Field Upgradeable ECU Firmware Platform
Any module program that ships over-the-air or over-the-bus firmware updates benefits from the ATMEGA64C1-15AZ's 64 KB ISP Flash with read-while-write capability: the core can keep executing from one region while a bootloader rewrites another, enabling safe A/B-style image updates without an external memory chip. The 2 KB EEPROM holds rollback flags and serial numbers across reprogramming cycles. The 125C automotive rating means the same platform serves engine-bay-adjacent modules, not just cabin electronics. With 4 KB SRAM, a compact CAN bootloader plus application buffer scheme fits comfortably, but developers should reserve SRAM explicitly in the linker map. Microchip's AVR ISP toolchain programs the blank device at the contract manufacturer, and the same interface serves depot reprogramming. Choose the 64 KB part over the 32 KB ATMEGA32C1-15AZ specifically when dual-image storage is required.
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: ATMEGA64C1-15AZ — 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 | ATMEGA64M1-15AZ | ATMEGA32C1-15AZ | ATMEGA16C1-15AZ |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 32-TQFP (7 x 7 mm) | 32-TQFP - same | 32-TQFP - same | 32-TQFP - same |
| Flash Memory | 64 KB (32K x 16) | 64 KB | 32 KB | 16 KB |
| Max CPU Speed | 16 MHz | 16 MHz | 16 MHz | 16 MHz |
| Peripheral Emphasis | CAN/LIN body electronics (C1) | Motor control (M1) | CAN/LIN body electronics (C1) | CAN/LIN body electronics (C1) |
| Temperature Rating | Automotive, up to 125 degrees C | Automotive, up to 125 degrees C | Automotive, up to 125 degrees C | Automotive grade |
主な差別化要因
- Double the Flash of the cost-down variant （vs ATMEGA32C1-15AZ)
- Same memory, motor-control peripheral emphasis （vs ATMEGA64M1-15AZ)
- Headroom vs smallest family members （vs ATMEGA16C1-15AZ)
設計ノート
The 4 KB SRAM is the most common resource bottleneck when porting designs from larger AVRs. CAN receive ring buffers, LIN schedules, and printf-style formatting each consume tens to hundreds of bytes; a stack overflow from an oversized buffer causes intermittent resets that are hard to diagnose. Estimate: a 32-message CAN receive queue at ~16 bytes per entry consumes ~512 bytes, roughly 12.5% of total SRAM before the application starts. Map SRAM usage explicitly in the linker script and enable stack-usage analysis in the toolchain before release.
Place a 100 nF ceramic decoupling capacitor at each VCC pin of the 32-TQFP, within 2-3 mm of the pin, with a solid ground plane on the adjacent layer. The 15-speed automotive variant may operate in noisy vehicle environments, so keep the CAN transceiver's split-termination network close to the MCU-side CANH/CANL routing and route CAN lines as a 120-ohm-impedance differential pair. Do not run crystal traces under the MCU body if using an external clock for CAN timing; guard them with ground pours per standard AVR layout practice in Microchip application notes.
The exact operating voltage range is not listed in the retrieved distributor data (verify against the Microchip datasheet before design-in); the ATmega C1 automotive family is designed for the 12 V automotive rail environment via an external regulator. Estimated: a 5 V rail with an LDO such as a typical automotive 5 V SBC requires input headroom for cold crank conditions; size the regulator dropout and power dissipation (P = (VIN - 5 V) x I_total) for your measured MCU plus transceiver load rather than nominal values. Confirm maximum current consumption figures directly from the current datasheet revision, as this page does not reproduce them.
コンプライアンス情報
The AZ suffix denotes Microchip's standard RoHS-compliant, lead-free package convention and distributor data lists the temperature grade as AUTOMOTIVE (Partstack); Mouser lists 125 degrees C operation. Formal RoHS/REACH/halogen-free declarations should be taken from Microchip's official environmental documents for the exact date code.
