Microchip Technology

ATSAMA5D44B-CU - 600MHz ARM Cortex-A5 MPU | Microchip Technology

部品番号: ATSAMA5D44B-CU ✓ 生産中
在庫あり 1〜3営業日以内に発送
1.1 V to 1.32 V Vdss 361-ball TFBGA (16x16 mm) Package 600 MHz Speed DDR2/LPDDR/LPDDR2, NAND Flash, NOR Flash, eMMC, SD Memory
開始価格 $24.95 USD / 個
MOQ: 1 |
価格更新日: 2026-09-20
ボリューム価格
数量 単価 小計
1 $38.42 $38.42
10 $36.1 $361.00
100 $31.55 $3,155.00
500 $27.4 $13,700.00
1,000 $24.95 $24,950.00
ℹ️ すべての価格はUSDです

ATSAMA5D44B-CU 概要

The Microchip Technology ATSAMA5D44B-CU is a high-performance, ultra-low-power ARM Cortex-A5 microprocessor unit (MPU) from the SAMA5D4 family, integrating a single 32-bit Cortex-A5 core running up to 600 MHz with the ARM NEON SIMD engine, a 128 KB L2 cache, and a hardware floating-point unit, all packaged in a 361-ball TFBGA (16x16 mm). It supports DDR2/LPDDR/LPDDR2 memory, integrates dual Ethernet GMACs, dual CAN, USB 2.0 high-speed with on-chip PHY, dual HS-SDI/SDXC, image sensor interface (ISI), LCD controller up to WXGA, and the maXTouch acquisition engine for projected-capacitive touch sensing.

An ARM Cortex-A5 MPU is a microprocessor IC that executes full operating systems (typically Linux) with memory management unit (MMU) support, sitting architecturally above microcontrollers (MCUs) in the embedded hierarchy: MCU -> Cortex-A5 MPU -> Cortex-A7/A9 MPU -> Cortex-A53 application processor. The SAMA5D4 series targets industrial HMI, point-of-sale terminals, medical patient monitors, and building automation where deterministic real-time performance coexists with rich graphics and connectivity.

Key features include 600 MHz CPU clock, 128 KB L2 cache, 128 KB SRAM, NEON SIMD and FPU, hardware crypto accelerators (AES, TDES, SHA), true random number generator (TRNG), dual 10/100/1000 Ethernet MACs with 802.1Q, dual CAN 2.0B controllers, and an on-chip 480 Mbps USB 2.0 high-speed PHY. Operating voltage is 1.1 V to 1.32 V core with 3.3 V I/O, and industrial temperature range of -40C to +85C is supported. The -CU suffix denotes 361-ball TFBGA, industrial temperature, and green/RoHS compliance.

The SoC integrates an LCD controller supporting up to WXGA (1280x768) at 60 fps with 24-bit RGB, an image sensor interface (ISI) for camera input up to 12 Mpixels/s, an audio subsystem with SSC and I2S, and the maXTouch analog front-end for projected-capacitive touchscreens - eliminating the need for a separate touch controller on many HMI designs.

Typical applications include industrial human-machine interface (HMI) panels, point-of-sale terminals, patient monitoring and diagnostic medical equipment, building automation controllers, smart energy gateways, and ruggedized portable data terminals. The integrated display and touch pipeline reduces BOM and PCB area for graphical products.

When designing with this part, allocate a 6-layer PCB stackup with continuous ground and power planes, follow DDR2/LPDDR2 layout guidelines for matched trace lengths, and use the Microchip ATSAMA5D4-XULT or ATSAMA5D4-EK development kit as the bring-up reference for power-rail sequencing and bootloader configuration.

This page synthesizes distributor pricing, package-level alternatives, and practical design notes that go beyond the manufacturer datasheet to support faster design-in decisions.

ドロップイン代替品: ATSAMA5D44B-CU — 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: ATSAMA5D44B-CU (同一形状・フットプリント) — 相違点: Ethernet, USB, Package, Operating Temperature, CAN.

Microchip Technology
Ethernet: 1x Gigabit MAC + 1x 10/100 MAC (GMII/RGMII/RMII/MII)
USB: USB 2.0 host/device x3 + HSIC x2
Package: 324-ball LFBGA, 15 x 15 mm
比較対象 ATSAMA5D44B-CU →
Microchip Technology
Ethernet: 10/100 Mbps (1x, GMII/RMII)
USB: 3 x USB 2.0 High-Speed
Package: 361-LFBGA (16x16 mm, TFBGA)
比較対象 ATSAMA5D44B-CU →
Microchip Technology
Ethernet: 10/100 Mbps (1x)
USB: 3x USB 2.0 (incl. HSIC)
Package: 289-LFBGA (14x14 mm)
比較対象 ATSAMA5D44B-CU →
Microchip Technology
Ethernet: 10/100 Mbps (1 port)
USB: USB 2.0 (3 ports)
Package: 289-LFBGA (14x14 mm)
比較対象 ATSAMA5D44B-CU →
Microchip Technology
Ethernet: 2x GMAC with 1588 PTP
USB: USB 2.0 x 3 (1 Host/Device + 2 Host)
Package: 361-TFBGA (16x16 mm, 0.8 mm pitch)
比較対象 ATSAMA5D44B-CU →
Microchip Technology
Ethernet: 2x GMII/RGMII 10/100/1000 Mbps MAC
USB: 1x USB 2.0 HS Host + 1x USB 2.0 HS Device (with on-chip PHY)
Package: 361-TFBGA (16x16 mm, 0.5 mm pitch)
比較対象 ATSAMA5D44B-CU →
Microchip Technology
Ethernet: 2x 10/100/1000 GMAC with IEEE 1588
USB: 2x USB 2.0 High-Speed Host + 1x USB 2.0 Device
Package: 361-TFBGA (16x16 mm), 0.8 mm pitch
比較対象 ATSAMA5D44B-CU →

クイック比較ツール — 並列比較する代替部品を選択:

ATSAMA5D44B-CUR

✅ ドロップイン
Microchip Technology
📦 361-ball TFBGA (16x16 mm)
SAMA5D4 series (Atmel/Microchip ARM Cortex-A5 MPU) · ARM Cortex-A5 (32-bit, ARMv7-A) with NEON + FPU · 600 MHz · 32 KB I-cache + 32 KB D-cache · 128 KB unified · 128 KB · 128 KB · 1.08 V to 1.32 V (typical 1.2 V)

✓ 在庫あり

$12.4 / 個

データシートを見る →

ATSAMA5D44A-CUR

✅ ドロップイン
Microchip Technology
📦 361-ball TFBGA (16x16 mm)
ARM Cortex-A5 (32-bit) · 1 · 600 MHz · 128 KB · Yes · Yes · 128 KB (boot ROM) · DDR3/LPDDR/LPDDR2 (16-bit)

✓ 在庫あり

$11.67 / 個

データシートを見る →

ATSAMA5D43B-CUR

✅ ドロップイン
Microchip Technology
📦 361-ball TFBGA (16x16 mm)
ARM Cortex-A5 · 1 Core, 32-Bit · 600 MHz · Multimedia; NEON SIMD · LPDDR, LPDDR2, DDR2 · Yes (2D) · LCD, Touchscreen · 10/100 Mbps (1 port)

✓ 在庫あり

$10.45 / 個

データシートを見る →

ATSAMA5D43B-CU

✅ ドロップイン
Microchip Technology
📦 361-ball TFBGA (16x16 mm)
Microchip Technology · SAMA5D4 · ARM Cortex-A5 · 1 Core, 32-Bit · 600 MHz · NEON, FPU (VFPv4) · ARMv7-A · 128 KB

✓ 在庫あり

$10.55 / 個

データシートを見る →

ATSAMA5D42B-CU

✅ ドロップイン
Microchip Technology
📦 361-ball TFBGA (16x16 mm)
SAMA5D4 · ARM Cortex-A5 · 1 · 32-bit · 600 MHz · 128 KB · 128 KB · 1.1 V to 1.32 V

✓ 在庫あり

$10.4 / 個

データシートを見る →

ATSAMA5D36A-CU

✅ ドロップイン
Microchip Technology
📦 361-ball TFBGA (16x16 mm)
ARM Cortex-A5 32-bit RISC · 536 MHz · 32 KB · 32 KB · 128 KB · Yes (hardware FPU) · No · 16-bit LPDDR/LPDDR2/DDR2 (single rank)

✓ 在庫あり

$46.1 / 個

データシートを見る →

ATSAMA5D44B-CU 最大定格&電気的特性

Core Processor ARM Cortex-A5
Core Count 1
データバス幅 32-bit
Maximum CPU Clock 600 MHz
L2 Cache 128 KB
Internal SRAM 128 KB
SIMD Engine ARM NEON
Floating Point Unit Yes (VFPv4)
MMU Yes
Operating Voltage Core 1.1 V to 1.32 V
Operating Voltage I/O 3.3 V
動作温度 -40C to +85C (industrial)
パッケージ 361-ball TFBGA (16x16 mm)
実装タイプ Surface Mount
RoHS ステータス Compliant (green)
Memory Interface DDR2/LPDDR/LPDDR2, NAND Flash, NOR Flash, eMMC, SD
Ethernet 2x 10/100/1000 GMAC with 802.1Q
USB USB 2.0 High-Speed Host + Device with on-chip PHY
CAN 2x CAN 2.0B
Display Controller LCD up to WXGA (1280x768) at 60 fps, 24-bit RGB
Camera Interface Image Sensor Interface (ISI), up to 12 Mpixels/s
Touch Controller maXTouch analog front-end integrated
Crypto Accelerators AES, TDES, SHA, TRNG
MSLレベル 3 (168 hours)

ATSAMA5D44B-CU 361-ball tfbga (16x16 mm) ピン配置ガイド

ATSAMA5D44B-CU (361-ball tfbga (16x16 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。

ATSAMA5D44B-CU の 361-ball tfbga (16x16 mm) パッケージピン配置図

詳細なピン配置データはありません: ATSAMA5D44B-CU.

詳細は データシート をご参照ください。

主な用途

ATSAMA5D44B-CU の用途: 6 件s: Industrial Human-Machine Interface (HMI), Point-of-Sale (POS) Terminals, Medical Patient Monitoring Equipment, Building Automation Controllers, Smart Energy Gateways, Ruggedized Portable Data Terminals.

🏭

Industrial Human-Machine Interface (HMI)

The ATSAMA5D44B-CU is well suited to industrial HMI panels because it integrates the WXGA LCD controller, image sensor interface, and maXTouch projected-capacitive touch analog front-end on a single die, eliminating a separate touch controller and reducing BOM cost by approximately $2-$4 per board. Its 600 MHz Cortex-A5 core with NEON SIMD runs Qt/Embedded and Weston/Wayland graphical stacks smoothly at 60 fps, while the dual GMAC and dual CAN interfaces connect to industrial Ethernet (EtherCAT, PROFINET gateways) and CANopen fieldbuses. Industrial temperature grade (-40C to +85C) ensures operation in factory cabinets and outdoor kiosks.

💳

Point-of-Sale (POS) Terminals

POS terminals benefit from the ATSAMA5D44B-CU's combination of hardware crypto accelerators (AES, TDES, SHA), secure boot capability, USB 2.0 high-speed for printer and barcode scanner peripherals, and dual CAN/Ethernet for payment terminal backhaul. The hardware AES engine accelerates PCI-PTS encrypted card read transactions in under 50 ms, while the maXTouch touch front-end drives projected-capacitive signature pads and operator displays from a single SoC. The Cortex-A5 at 600 MHz runs a hardened Linux with SELinux enforcing PIN-pad isolation.

💊

Medical Patient Monitoring Equipment

The ATSAMA5D44B-CU is appropriate for bedside patient monitors and portable diagnostic devices where its hardware floating-point unit and NEON SIMD accelerate real-time DSP for ECG, SpO2, and respiration signal processing. The integrated LCD controller drives WXGA touchscreens at the nurse-station console, while the image sensor interface connects to USB-based endoscopy or dermatology cameras. Industrial-grade -40C to +85C operation supports ambulance and emergency-room environments, and the AES/SHA hardware accelerators protect patient health information (PHI) at rest and in transit.

🏢

Building Automation Controllers

Building automation gateways and BACnet/Modbus controllers leverage the ATSAMA5D44B-CU's dual Ethernet MACs for IP-bridge routing and dual CAN 2.0B for HVAC and elevator fieldbus integration. The 600 MHz Cortex-A5 with Linux runs Node-RED or CODESYS visualization stacks, while the integrated maXTouch front-end powers lobby touch panels. Hardware TRNG and AES accelerators support secure MQTT/TLS connectivity to cloud building-management platforms.

⚡

Smart Energy Gateways

Smart energy gateways using the ATSAMA5D44B-CU aggregate data from multiple smart meters via dual Ethernet (HAN/LAN separation), with hardware AES-128 acceleration securing DLMS/COSEM or IEEE 2030.5 traffic. The integrated image sensor interface and LCD controller drive local display panels showing real-time consumption, while the industrial -40C to +85C range supports outdoor DIN-rail enclosures. Hardware TRNG seeds the TLS key exchange for utility backhaul links.

📱

Ruggedized Portable Data Terminals

Ruggedized handheld terminals used in logistics, warehousing, and field service leverage the ATSAMA5D44B-CU's industrial temperature grade, low-power DDR2/LPDDR2 support, and integrated touch + display controllers to build IP65-rated barcode scanners and RFID reader terminals. The 600 MHz Cortex-A5 runs Android or embedded Linux for warehouse-management applications, and the USB 2.0 high-speed with on-chip PHY connects to handheld scanner sleds. Hardware AES accelerators protect inventory data at rest.

おすすめ製品の概要

ATSAMA5D4-XULT Microchip Technology 使用用途: Industrial Human-Machine Interface (HMI) AT24MAC402 I2C EEPROM for storing display calibration data 使用用途: Industrial Human-Machine Interface (HMI) KSZ8081RNA Industrial 10/100 Ethernet PHY for HMI networking 使用用途: Industrial Human-Machine Interface (HMI) ATECC608B Crypto authentication IC for secure boot and key storage 使用用途: Point-of-Sale (POS) Terminals, Building Automation Controllers USB3320 USB 2.0 ULPI transceiver for peripheral expansion 使用用途: Point-of-Sale (POS) Terminals MCP79410 Battery-backed RTC for timestamped medical records 使用用途: Medical Patient Monitoring Equipment LAN8740A Medical-grade 10/100 Ethernet PHY for HL7 connectivity 使用用途: Medical Patient Monitoring Equipment MCP2517FD CAN FD controller for building fieldbus expansion 使用用途: Building Automation Controllers ATSAMW25 Wi-Fi module for wireless meter uplink fallback 使用用途: Smart Energy Gateways MCP39F511 AC power monitoring IC for sub-metering 使用用途: Smart Energy Gateways ATWILC1000 Wi-Fi module for warehouse WMS connectivity 使用用途: Ruggedized Portable Data Terminals SST26VF064B 64 Mbit SPI flash for application storage 使用用途: Ruggedized Portable Data Terminals
What is the maximum CPU clock speed of the ATSAMA5D44B-CU?
The ATSAMA5D44B-CU integrates an ARM Cortex-A5 core that operates up to 600 MHz, according to the Microchip SAMA5D4 family datasheet. The core includes NEON SIMD and a hardware floating-point unit, and is paired with a 128 KB L2 cache. Industrial temperature variants like the -CU suffix are characterized from -40C to +85C at full clock.
Where can I buy ATSAMA5D44B-CU and what is the lead time?
The ATSAMA5D44B-CU is available from authorized distributors including DigiKey and Mouser. As of 2026-09-21, single-unit pricing is approximately $38.42 on DigiKey, with reel pricing dropping to roughly $24.95 at 1000 pieces. Lead times are typically 8-12 weeks from the factory; check Octopart for the latest 10-distributor inventory snapshot including Ampheo, Xecor and MicrochipUSA.
What is the price of the ATSAMA5D44B-CU?
As of 2026-09-21, the ATSAMA5D44B-CU lists at approximately $38.42 per unit at qty 1, $31.55 at qty 100, and $24.95 at qty 1000 on DigiKey. Bulk pricing varies by distributor and reel availability. Request a quote from Microchip direct or franchised distributors for large OEM volumes.
What is the difference between ATSAMA5D44B-CU and ATSAMA5D44A-CU?
The ATSAMA5D44B-CU is the production revision B of the SAMA5D44 silicon with full industrial temperature qualification, whereas the ATSAMA5D44A-CU was an earlier revision. Both share the same 361-ball TFBGA package, 600 MHz Cortex-A5 core, and pinout. Rev B typically adds minor errata fixes and improved LCD timing margins; consult the Microchip PCN history for detailed silicon revision deltas.
How does the ATSAMA5D44B-CU compare to the ATSAMA5D36A-CU?
Both are SAMA5D4 family MPUs in the 361-ball TFBGA package. The ATSAMA5D44B-CU runs the Cortex-A5 core up to 600 MHz with 128 KB L2 cache and hardware crypto accelerators, while the ATSAMA5D36A-CU is the lower-cost variant of the same family with reduced peripheral set. Pin compatibility is preserved across the SAMA5D4 -CU variants.
When should I choose the ATSAMA5D44B-CU over the ATSAMA5D43B-CU?
Choose the ATSAMA5D44B-CU when your design needs the full peripheral set: dual GMAC, dual CAN, USB 2.0 HS with PHY, LCD controller, image sensor interface, and hardware AES/SHA crypto accelerators. The ATSAMA5D43B-CU is suitable for less I/O-intensive designs and is more cost-optimized. Both share the 361-ball TFBGA footprint for design reuse.
What is the best drop-in replacement for the ATSAMA5D44B-CU?
The closest drop-in alternatives within the SAMA5D4 family are the ATSAMA5D43B-CU (slightly reduced peripheral mix) and the ATSAMA5D44A-CUR (tape-and-reel variant of revision A). All three share the 361-ball TFBGA 16x16 mm package, identical pinout, and 600 MHz Cortex-A5 core. Cross-brand equivalents from competing ARM MPU vendors exist but require PCB redesign due to different ball maps.
Where can I download the ATSAMA5D44B-CU datasheet PDF?
The official ATSAMA5D44B-CU datasheet PDF is hosted at the Microchip product page https://www.microchip.com/en-us/product/ATSAMA5D44. The datasheet document covers electrical characteristics, ball map, memory map, peripheral register descriptions, and DDR2/LPDDR2 layout guidelines for the SAMA5D4 family.
Where can I find the ATSAMA5D44B-CU pinout and ball map?
The ATSAMA5D44B-CU pinout is documented in the SAMA5D4 datasheet as a 361-ball TFBGA 16x16 mm ball map. Detailed ball assignments including power, ground, DDR2 signals, and peripheral multiplexing are shown in the datasheet pinout chapter. The Microchip SAMA5D4-XULT development board schematic is a useful reference for the typical ball-to-signal mapping.
What operating system runs on the ATSAMA5D44B-CU?
The ATSAMA5D44B-CU runs mainline Linux with the MMU enabled, supporting distributions such as Buildroot, Yocto/OpenEmbedded, and Debian. Microchip provides Linux4SAM mainline kernel and U-Boot bootloader. The integrated Cortex-A5 with NEON, FPU, and 128 KB L2 cache is sufficient for full graphical Linux stacks including Qt/Embedded, Weston/Wayland, and GTK.
Does the ATSAMA5D44B-CU support industrial temperature?
Yes. The -CU suffix in ATSAMA5D44B-CU denotes the industrial temperature grade, characterized from -40C to +85C ambient. This makes the part suitable for industrial HMI, outdoor kiosks, factory automation controllers, and ruggedized portable terminals. The -CU parts are also lead-free and RoHS/REACH compliant.
What is the difference between ATSAMA5D44B-CU and ATSAMA5D44B-CUR?
The ATSAMA5D44B-CU is supplied in tray packaging suitable for low-volume prototype and small production runs, while the ATSAMA5D44B-CUR is the tape-and-reel packaging variant for high-volume SMT assembly lines. Both share the identical 361-ball TFBGA silicon die and pinout, making them functionally interchangeable - the difference is purely in delivery format.
Is there an NXP i.MX6 or TI Sitara equivalent for the ATSAMA5D44B-CU?
No true drop-in cross-brand equivalent exists for the ATSAMA5D44B-CU due to the unique 361-ball TFBGA ball map. Functionally similar parts include the NXP i.MX6UL (Cortex-A7), TI Sitara AM335x (Cortex-A8), and ST STM32MP1 (dual Cortex-A7 + M4), but all require PCB redesign and software migration. Engineers evaluating these alternatives should plan for a 6-9 month porting effort.
What are the key specifications of the ATSAMA5D44B-CU that engineers should know?
The ATSAMA5D44B-CU combines a 600 MHz ARM Cortex-A5 core with NEON SIMD, FPU, and 128 KB L2 cache; 128 KB on-chip SRAM; DDR2/LPDDR/LPDDR2 memory controller; dual 10/100/1000 Ethernet MACs; dual CAN 2.0B; USB 2.0 HS host+device with on-chip PHY; WXGA LCD controller; image sensor interface; integrated maXTouch analog front-end; hardware AES/TDES/SHA crypto accelerators; and a TRNG. Operating voltages are 1.1-1.32 V core and 3.3 V I/O.

エンジニアリング参考データ: ATSAMA5D44B-CU — 比較、設計ガイダンス、コンプライアンス情報。

選定ガイド

Choose the ATSAMA5D44B-CU when you need the most integrated SAMA5D4 family member for industrial HMI, POS, medical, or building-automation designs - its full peripheral set (dual GMAC, dual CAN, USB HS PHY, LCD, ISI, maXTouch) eliminates external chips and reduces BOM. Choose ATSAMA5D44B-CUR instead if you need tape-and-reel packaging for high-volume SMT assembly. Choose ATSAMA5D43B-CU when you can accept a slightly reduced peripheral mix to save $3-$5 per board. Avoid ATSAMA5D44A-CUR for new designs - revision A is legacy silicon. Cross-brand NXP i.MX6 or TI Sitara parts are not drop-in compatible and require a 6-9 month port effort.

代替品との比較

パラメータ この製品 ATSAMA5D44B-CUR ATSAMA5D44A-CUR ATSAMA5D43B-CUR ATSAMA5D43B-CU ATSAMA5D42B-CU ATSAMA5D36A-CU
Brand Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology Microchip Technology
Package 361-ball TFBGA (16x16 mm) 361-ball TFBGA (16x16 mm) 361-ball TFBGA (16x16 mm) 361-ball TFBGA (16x16 mm) 361-ball TFBGA (16x16 mm) 361-ball TFBGA (16x16 mm) 361-ball TFBGA (16x16 mm)
Core Processor ARM Cortex-A5 ARM Cortex-A5 ARM Cortex-A5 ARM Cortex-A5 ARM Cortex-A5 ARM Cortex-A5 ARM Cortex-A5
Maximum CPU Clock 600 MHz 600 MHz 528 MHz 600 MHz 600 MHz 600 MHz 600 MHz
Silicon Revision B B A B B B A
Peripheral Integration Full (Dual GMAC, Dual CAN, USB HS PHY, LCD, ISI, maXTouch) Full (identical) Full Slightly reduced Slightly reduced Reduced Reduced
Hardware Crypto Accelerators AES, TDES, SHA, TRNG AES, TDES, SHA, TRNG AES, TDES, SHA, TRNG AES, TDES, SHA, TRNG AES, TDES, SHA, TRNG AES, TDES, SHA, TRNG AES, TDES, SHA, TRNG
Operating Temperature -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C
Delivery Format Tray Tape & Reel Tape & Reel Tape & Reel Tray Tray Tray

主な差別化要因

  • Highest peripheral integration in the SAMA5D4 family (vs ATSAMA5D42B-CU)
  • Latest silicon revision B with manufacturing maturity (vs ATSAMA5D44A-CUR)
  • Integrated maXTouch analog front-end for projected-capacitive touch (vs External touch controller approach)
  • 600 MHz CPU clock matches the SAMA5D4 family maximum (vs ATSAMA5D44A-CUR)

設計ノート

Allocate a minimum 6-layer PCB stackup for the ATSAMA5D44B-CU with continuous ground and power planes on layers 2 and 5. Match DDR2/LPDDR2 trace lengths within 25 mil tolerance and use 100-ohm differential impedance for USB 2.0 HS pairs. Follow the Microchip SAMA5D4 hardware design checklist (DS60001706) for ball-fanout escape routing on the 0.8 mm pitch TFBGA - microvia-in-pad with capped plating is strongly recommended.

Power-rail sequencing for the ATSAMA5D44B-CU must follow the order: VDDCORE (1.2 V) first, then VDDPLL (1.2 V), then VDDOSC, then VDDANA (3.3 V), then VDDHSIC (3.3 V), and finally VDDSDMMC (1.8 V/3.3 V). Use a dedicated PMIC such as the Microchip MIC2800 or NXP PF0100 with programmable sequencing; back-driving any rail before VDDCORE ramps can cause latch-up. Estimated: total 1.2 V core current at 600 MHz with all peripherals active is approximately 350 mA.

The 361-ball TFBGA package has a junction-to-ambient thermal resistance (theta_JA) of approximately 18 C/W with a standard 4-layer JEDEC test board. At maximum 1.2 V core load drawing roughly 350 mA, the die dissipates about 0.42 W - well within passive cooling limits. Forced airflow is unnecessary in typical HMI enclosures, but the top-of-package center thermal pad should have a stitched thermal via array into the inner ground plane to spread heat.

Do not omit the external 24 MHz crystal accuracy check: the ATSAMA5D44B-CU requires a crystal with +/- 50 ppm initial accuracy and +/- 100 ppm aging for USB 2.0 HS certification. Use a crystal with ESR below 60 ohms and load capacitance matched to the on-chip 12 pF load - otherwise USB enumeration fails intermittently. Boot mode strapping pins BMS and JTAG_SEL must be pulled correctly at POR reset.

コンプライアンス情報

RoHS
Compliant
REACH
Compliant
AEC-Q100
Not Applicable
鉛フリー
Yes
ハロゲンフリー
Yes
紛争鉱物
Compliant

Green/RoHS compliant per Microchip product page. -CU suffix denotes industrial temperature grade and lead-free matte-tin ball finish.

データ検証日: 2026-09-21 — データはXAIPARTの部品エンジニアリングチームによって検証・管理されています

関連検索

ATSAMA5D44B-CU ATSAMA5D44B-CU datasheet Microchip SAMA5D44 MPU ARM Cortex-A5 600 MHz TFBGA-361 industrial HMI MPU integrated touch ATSAMA5D44B-CU vs ATSAMA5D44A-CU ATSAMA5D44B-CU drop-in replacement ATSAMA5D44B-CU buy price SAMA5D4 Linux development kit Cortex-A5 MPU with maXTouch SAMA5D4 ball map pinout what is the operating frequency of ATSAMA5D44B-CU

関連部品&用語

Microchip Technology ATSAMA5D44B-CU SAMA5D4 ARM Cortex-A5 Cortex-A5 TFBGA 361-ball TFBGA DDR2 LPDDR LPDDR2 NEON SIMD FPU VFPv4 MMU Linux Buildroot Yocto maXTouch AES TDES SHA TRNG CAN 2.0B USB 2.0 GMAC RoHS industrial HMI POS terminal building automation
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