ATSAM4S4CB-CNR - 120MHz Cortex-M4 MCU 256KB Flash | Microchip
部品番号: ATSAM4S4CB-CNR ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $6.42 | $6.42 |
| 10 | $5.78 | $57.80 |
| 100 | $5.12 | $512.00 |
| 500 | $4.63 | $2,315.00 |
| 1,000 | $4.18 | $4,180.00 |
ATSAM4S4CB-CNR 概要
A microcontroller unit (MCU) is a single-chip embedded computer that integrates a processor core, memory, and peripherals on one die. Within the semiconductor hierarchy, the ATSAM4S4CB-CNR belongs to the ARM Cortex-M family of 32-bit MCUs, which sits under the broader categories of embedded processors and system-on-chip devices. The SAM4S series is Microchip's (formerly Atmel) mainstream Flash MCU line for cost-sensitive embedded control.
Key features include the ARM Cortex-M4 core with DSP instructions and single-cycle MAC, 120 MHz maximum clock frequency, 256 KB (256K x 8) on-chip Flash, 64 KB SRAM, and a rich peripheral set including 3 SPI ports, 4 UARTs, and 2 I2C interfaces as confirmed by distributor parametric data. Internal oscillator options at 4, 8, 12 MHz plus 32 kHz reduce external component count.
The Cortex-M4 architecture brings hardware divide, DSP extensions, and FPU-class math throughput suited to digital filtering and motor control algorithms, while the SAM4S peripheral bus supports fast DMA-driven data movement. Extended temperature rating to 105C and Microchip's GREEN, RoHS-oriented TFBGA packaging target industrial and outdoor deployments.
Typical applications include industrial automation nodes, motor control and power conversion, embedded IoT sensor gateways, and portable instrumentation, where 120 MHz headroom and 256 KB Flash cover protocol stacks plus application code.
Design consideration: 9x9 mm 100-ball TFBGA demands fine-pitch PCB design with controlled-impedance fan-out; verify your assembly house supports 0.8 mm ball pitch BGA inspection.
This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
ドロップイン代替品: ATSAM4S4CB-CNR — 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: ATSAM4S4CB-CNR （同一形状・フットプリント） — 相違点: Package, Operating Temperature, RoHS Status, Core Processor, Packaging.
クイック比較ツール — 並列比較する代替部品を選択:
ATSAM4S4CA-CU
✅ ドロップイン✓ 在庫あり
$3.45 / 個
データシートを見る →ATSAM4S2CB-CNR
✅ ドロップイン✓ 在庫あり
$3.53 / 個
データシートを見る →ATSAM4S2CB-ANR
✅ ドロップイン✓ 在庫あり
$3.2 / 個
データシートを見る →ATSAM4S16CB-CFN
✅ ドロップイン✓ 在庫あり
$4.95 / 個
データシートを見る →ATSAM4S16CA-CU
✅ ドロップイン✓ 在庫あり
$4.89 / 個
データシートを見る →ATSAM4S4CB-CNR 最大定格＆電気的特性
| Core Processor | ARM Cortex-M4 (SAM4S) |
| Core Size | 32-Bit Single-Core |
| 最大クロック周波数 | 120 MHz |
| Flash Memory | 256 KB (256K x 8) |
| SRAM | 64 KB |
| パッケージ | 100-TFBGA (9x9 mm) |
| 実装タイプ | Surface Mount |
| 動作温度 | -40C to +105C (Extended) |
| Maximum Supply Voltage | 3.6 V |
| SPI Interfaces | 3 |
| UART Interfaces | 4 |
| I2C Interfaces | 2 |
| Internal Oscillators | 4 MHz, 8 MHz, 12 MHz, 32 kHz |
| Crypto Engine | No |
| Pin/Ball Count | 100 |
| Packaging | Tape & Reel (MRL B), GREEN package |
ATSAM4S4CB-CNR 100-tfbga (9x9 mm) ピン配置ガイド
ATSAM4S4CB-CNR (100-tfbga (9x9 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: ATSAM4S4CB-CNR.
詳細は データシート をご参照ください。
主な用途
ATSAM4S4CB-CNR の用途: 6 件s: Industrial Automation and Control Nodes, Motor Control and Power Conversion, Embedded IoT Sensor Gateways, Portable and Battery-Powered Instrumentation, Building Automation and HVAC Controllers, Security and Access Control Systems.
Industrial Automation and Control Nodes
Factory automation nodes demand deterministic processing, robust serial connectivity, and tolerance to warm electrical cabinets. The ATSAM4S4CB-CNR fits this role with its 120 MHz ARM Cortex-M4 core handling control loops and protocol parsing, plus 4 UARTs, 3 SPI, and 2 I2C buses for interfacing PLC I/O modules, encoders, and HMI bridges. The extended -40C to +105C rating survives panel temperatures near power electronics where standard 85C parts would derate. Its 256 KB Flash accommodates Modbus, CANopen-style stacks, and OTA bootloaders simultaneously with the application. Placed on a 4-layer board with 100 nF decoupling per power ball, the MCU drives isolated RS-485 transceivers and 12-bit ADC-based current sensing with DMA-offloaded data paths, keeping CPU load low.
おすすめ
Motor Control and Power Conversion
Sensorless FOC motor control requires fast multiply-accumulate throughput, and the Cortex-M4 core in the ATSAM4S4CB-CNR delivers DSP instructions at 120 MHz, executing current-loop mathematics within microsecond PWM periods. The SAM4S PWM peripheral generates complementary drive signals with dead-time insertion for three-phase inverters, while on-chip ADC channels sample phase currents synchronized to PWM triggers via its peripheral event system. The 256 KB Flash holds FOC algorithms, startup routines, and fieldbus communication concurrently. The 105C extended temperature rating tolerates drive enclosure heat. Designers should route ADC sense lines away from PWM switching nodes and use the 12 MHz internal oscillator as a fail-safe clock source so a crystal failure does not stall braking logic mid-operation.
おすすめ
Embedded IoT Sensor Gateways
IoT gateway nodes aggregate sensor data and bridge it to wireless modules, requiring serial multiplexing and moderate compute headroom. The ATSAM4S4CB-CNR provides 4 UARTs - enough to connect a cellular modem, a LoRa or BLE module, and two sensor buses simultaneously - while 3 SPI and 2 I2C ports attach ADCs, accelerometers, and secure elements. The 64 KB SRAM buffers packet bursts, and the 256 KB Flash stores TLS stacks plus firmware with dual-bank OTA images. Its internal 4/8/12 MHz and 32 kHz oscillators allow low-power standby timing without external crystals in cost-sensitive designs. At typical gateway duty cycles, the Cortex-M4 spends most time in sleep, waking on UART or RTC interrupts, extending battery-backed uptime.
おすすめ
Portable and Battery-Powered Instrumentation
Handheld measurement instruments need a balance of processing power and energy efficiency. The ATSAM4S4CB-CNR runs at 120 MHz for FFT-based signal analysis yet drops into low-power sleep modes managed by its 32 kHz internal oscillator for long idle periods between measurements. The 256 KB Flash retains calibration tables, multi-language UI resources, and a bootloader, while 64 KB SRAM handles waveform capture buffers. Its compact 9x9 mm 100-TFBGA footprint suits dense handheld PCBs where board area drives product size. With battery rails at 3.3 V within its 3.6 V maximum, no level shifting is required for analog front-end ICs. Designers should budget display backlight and RF front-end current, which typically dominates the power budget far more than the MCU core.
おすすめ
Building Automation and HVAC Controllers
HVAC and building management controllers run for decades in electrical rooms with wide ambient swings, making the ATSAM4S4CB-CNR's -40C to +105C extended rating and GREEN RoHS-compliant packaging a practical match. Its multiple UARTs drive RS-485 BACnet/Modbus segments, I2C buses read humidity and temperature sensors, and PWM outputs directly control damper actuators and variable-speed fan stages. The 256 KB Flash supports full protocol stacks plus a web-server-style configuration interface, and its 64 KB SRAM handles trend-logging data before upload. Field reliability benefits from the internal oscillator backup clock: if the main crystal drifts or fails, communication watchdogs retain a valid timebase. Layout should isolate the RS-485 transceiver ground return from the analog sensor ground to preserve ADC accuracy.
おすすめ
Security and Access Control Systems
Access-control panels and security sensors require dependable serial networking, cryptographic-grade key storage (typically via external secure element), and fast event handling. The ATSAM4S4CB-CNR's 120 MHz Cortex-M4 core manages AES-class algorithms efficiently with DSP-accelerated loops, while the absence of an on-chip crypto engine is addressed by pairing an external secure authenticator over one of its 2 I2C buses. The 256 KB Flash stores event logs, credential databases, and dual firmware images for fail-safe updates; the 64 KB SRAM buffers burst transactions from card readers. Four UARTs connect readers, GSM backup communicators, and host panels in parallel. The extended 105C rating allows mounting in sun-exposed outdoor reader enclosures without forced-air cooling.
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: ATSAM4S4CB-CNR — 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 | ATSAM4S4CA-CU | ATSAM4S2CB-CNR | ATSAM4S16CB-CFN |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 100-TFBGA (9x9 mm) | 100-TFBGA (9x9 mm) - same | 100-TFBGA (9x9 mm) - same | 100-TFBGA (9x9 mm) - same |
| Core / Speed | ARM Cortex-M4, 120 MHz | ARM Cortex-M4, 120 MHz | ARM Cortex-M4, 120 MHz | ARM Cortex-M4, 120 MHz |
| Flash Memory | 256 KB | 256 KB | 128 KB | 1024 KB class |
| Communication Peripherals | 3 SPI, 4 UART, 2 I2C | 3 SPI, 4 UART, 2 I2C (same family) | 3 SPI, 4 UART, 2 I2C (same family) | 3 SPI, 4 UART, 2 I2C (same family) |
| Drop-in Compatibility | Reference part | Pin-to-pin drop-in, 100% | Pin-to-pin drop-in, 90% | Pin-to-pin drop-in, 70% |
主な差別化要因
- 2x Flash headroom at same footprint （vs ATSAM4S2CB-CNR)
- Extended 105C temperature rating （vs ATSAM4S2CB-CN)
- Memory-downgrade cost path within same footprint （vs ATSAM4S16CB-CFN)
- Trade-off: no hardware crypto engine （vs Newer Cortex-M4/M33 MCUs)
設計ノート
The 9x9 mm 100-TFBGA uses a 0.8 mm ball pitch requiring precise land-pattern fabrication and X-ray or acoustic inspection at assembly. Use a 4-layer stack-up with dedicated ground plane; fan out power balls with via-in-pad or dog-bone escapes and 100 nF decoupling capacitors within 2 mm of each supply ball pair. Confirm your CM supports BGA rework before committing to layout, as repair on fine-pitch BGA is costly.
Supply the SAM4S core and I/O per the SAM4S datasheet power domains; maximum supply is 3.6 V per distributor parametric data. Estimated: at 120 MHz full-speed operation with peripherals active, core current is in the tens-of-mA class - size your 3.3 V LDO or buck accordingly and add bulk capacitance (at least 10 uF) near the regulator output to handle wake-up current transients when exiting sleep modes.
Suffix codes matter: the '-CNR' extended-temperature grade (to 105C) must not be silently substituted with industrial '-CN' 85C variants in hot environments - verify the suffix on every incoming reel. Also, Flash variants within the SAM4S family are pin-compatible but memory differs; a firmware image built for 256 KB will not fit ATSAM4S2 parts, so gate BOM substitutions with linker-size checks in CI.
At 120 MHz core clock, keep high-speed peripheral buses (SDRAM-class or parallel interfaces if used) short and impedance-controlled; series-terminate 33 ohm on clock outputs. Route the 32 kHz crystal (if used) away from switching PWM traces and guard it with ground pour to preserve RTC accuracy in timing-critical metering or logging applications.
コンプライアンス情報
Mouser listing designates the part as GREEN package (Microchip's RoHS-compliant, halogen-free, lead-free designation). REACH and conflict-minerals declarations should be confirmed via Microchip's Material Declaration Data Sheet.
