ATSAMA5D23B-CN - 500MHz ARM Cortex-A5 MPU 128KB SRAM | Microchip
N.º de pieza: ATSAMA5D23B-CN ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $14.85 | $14,85 |
| 10 | $13.42 | $134,20 |
| 100 | $11.97 | $1.197,00 |
| 500 | $10.68 | $5.340,00 |
| 1.000 | $9.55 | $9.550,00 |
ATSAMA5D23B-CN Descripción general
A microprocessor (MPU) is an integrated circuit that contains the full CPU, cache, memory controller and peripheral interfaces on a single die, in contrast to a microcontroller (MCU) which typically integrates on-chip Flash and modest RAM. The ATSAMA5D23B-CN belongs to the SAMA5D2 family of low-power, high-integration MPUs from Microchip that target industrial HMI, IoT gateways, and connected embedded products. The series uses a low-power architecture that achieves 5 uA in backup mode, supporting extensive battery life for always-on edge nodes.
Key features include 32 kbyte L1 instruction cache, 32 kbyte L1 data cache, a memory management unit (MMU), ARM TrustZone hardware isolation, and an integrated peripheral touch controller. The device supports LPDDR/DDR2/DDR3 external memory interfaces through its EBI, plus 12-bit ADC, CAN, USB HS, EMAC, image sensor interface, and I2S audio subsystem. The 0.8 mm ball pitch reduces PCB design complexity versus finer-pitch BGA variants.
The Cortex-A5 core uses the Armv7-A instruction set with Neon SIMD for media acceleration, executed through a dual-issue pipeline that delivers 1.57 DMIPS/MHz. TrustZone extensions provide hardware isolation between secure and non-secure execution, enabling secure boot and DRM for media applications. The integrated audio subsystem and LCD controller allow direct connection of TFT displays without an external companion chip.
Typical applications include industrial human-machine interfaces (HMI), IoT edge gateways, smart energy meters, building automation panels, and barcode scanners. The combination of low power consumption, integrated graphics and peripheral touch controller makes it well suited for battery-powered graphical products.
When designing with this device, ensure the PCB supports 0.8 mm microvia stack-up for the TFBGA-196 footprint. Power supply sequencing must follow the SAMA5D2 reference schematic to avoid back-powering through I/O rails during cold boot.
Alternativas directas para ATSAMA5D23B-CN — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con ATSAMA5D23B-CN (mismo factor de forma y huella) — difiere en Package, Ethernet, USB, Mounting Type, CAN.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
ATSAMA5D23A-CN
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$9.15 / unidad
Ver hoja de datos →ATSAMA5D23B-CNR
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$10.25 / unidad
Ver hoja de datos →ATSAMA5D22B-CUR
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$9.1 / unidad
Ver hoja de datos →ATSAMA5D21B-CU
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$9.8 / unidad
Ver hoja de datos →ATSAMA5D225C-D1M-CU
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$12.6 / unidad
Ver hoja de datos →ATSAMA5D23A-CUR
✅ Sustitución directa ⚠️ Especificaciones sin verificar✓ En stock
$8.95 / unidad
Ver hoja de datos →ATSAMA5D23B-CN Valores máximos y características eléctricas
| Core Architecture | ARM Cortex-A5 (Armv7-A) |
| Number of Cores | 1 |
| Maximum Clock Speed | 500 MHz |
| L1 Instruction Cache | 32 kbyte |
| L1 Data Cache | 32 kbyte |
| L2 Cache | 128 kbyte (configurable as internal SRAM) |
| NEON Media Engine | Yes |
| ARM TrustZone | Yes |
| MMU | Yes |
| Encapsulado | 196-TFBGA (11x11 mm) |
| Ball Pitch | 0.8 mm |
| Tipo de montaje | Surface Mount |
| Backup Mode Current | 5 uA typical |
| Ancho del bus de datos | 32-bit |
| Series | SAMA5D2 |
| Estado RoHS | Compliant |
Guía de configuración de pines de ATSAMA5D23B-CN 196-tfbga (11x11 mm)
Configuración de pines para ATSAMA5D23B-CN (encapsulado 196-tfbga (11x11 mm)). Este CI digital incluye GPIO, interfaces de comunicación (UART, SPI, I2C) y pines de alimentación. Consulte la hoja de datos del fabricante para conocer las funciones alternativas de los pines y las opciones de configuración. Esencial para el diseño de sistemas embebidos y el diseño de PCB.
No hay datos detallados de patillaje disponibles para ATSAMA5D23B-CN.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
ATSAMA5D23B-CN es adecuado para 7 aplicacións: Industrial Human-Machine Interface (HMI) Panels, IoT Edge Gateways, Smart Energy Meters, Building Automation Controllers, Connected Barcode Scanners and POS Terminals, Battery-Powered Wearable Medical Devices, Industrial Printer and Label Maker Controllers.
Industrial Human-Machine Interface (HMI) Panels
The ATSAMA5D23B-CN drives industrial HMI panels where the integrated 500 MHz Cortex-A5 core plus on-chip LCD controller deliver smooth Qt/Embedded GUI rendering at WVGA resolutions without an external graphics chip. Its 128 kbyte L2 cache and 32 kbyte L1 caches reduce DDR3 transactions, allowing the panel to refresh at 60 Hz while sustaining touchscreen response. The peripheral touch controller (PTC) interfaces directly to projected-capacitive touch sensors, eliminating an external touch IC. Compared with a discrete MPU + touch controller solution, the D23 reduces BOM count by 2-3 ICs, simplifies the PCB stack-up, and lowers total system cost for factory-floor operator panels and building-automation touchscreens.
Recomendado
IoT Edge Gateways
Edge gateways aggregate sensor data from multiple field busses and need both deterministic networking and headroom for on-device analytics. The ATSAMA5D23B-CN integrates dual CAN-FD controllers, 10/100 EMAC, USB HS, and multiple UART/SPI/I2C ports to talk to industrial sensors, while the Cortex-A5 plus NEON engine runs Linux with containerized analytics at the edge. The 5 uA backup current preserves battery during grid outages, and ARM TrustZone secures the cryptographic key store from remote management attacks. Typical deployments pair the D23 with a sub-1 GHz radio daughter board or an external LTE modem for cellular uplink, leveraging the same BSP across the product line.
Recomendado
Smart Energy Meters
Smart electricity meters demand long battery-backed retention, signed firmware, and certified metrology accuracy. The ATSAMA5D23B-CN's 5 uA backup current lets the meter survive multi-day power outages while keeping RTC and tamper logs intact, and ARM TrustZone enforces the legal metrology firmware boundary. Its 12-bit ADC, dual sigma-delta interfaces, and on-chip timers allow direct connection to current shunts and voltage dividers, removing the external metering MCU often paired with cheaper MPUs. Compared with discrete MCU + comms-processor designs, the integrated approach shrinks the BOM and reduces calibration drift across temperature.
Recomendado
Building Automation Controllers
Building automation controllers aggregate HVAC, lighting, and access-control sub-systems over KNX, BACnet, Modbus, or Ethernet/IP. The ATSAMA5D23B-CN provides dual CAN-FD plus the EMAC needed to bridge KNX-TP to BACnet/IP in a single IC, while the 500 MHz Cortex-A5 runs Node-RED or a custom automation stack with sufficient headroom for TLS encryption. Its 196-TFBGA footprint enables compact DIN-rail module designs, and the industrial operating temperature range allows deployment in unconditioned electrical closets. Compared with PLC-class controllers, the D23 cuts bill-of-materials cost while retaining deterministic field-bus performance.
Recomendado
Connected Barcode Scanners and POS Terminals
POS terminals and barcode scanners need a balance of imaging throughput, secure payment key handling, and low standby power. The ATSAMA5D23B-CN integrates an image sensor interface (ISI) that connects directly to CMOS barcode sensors at up to 5 Mpixels, while the Cortex-A5 plus NEON engine decodes 1D/2D symbologies in software at sustained 30 fps. ARM TrustZone isolates the PCI payment key store from the general application OS, satisfying PTS POI requirements. The 5 uA backup current keeps the device PIN-authenticated across multi-day store closures, and the USB HS port supports attached payment-terminal peripherals.
Recomendado
Battery-Powered Wearable Medical Devices
Wearable medical devices such as patient monitors and portable infusion pumps demand extended battery life and certified deterministic behavior. The ATSAMA5D23B-CN's 5 uA backup current preserves days of standby on a small Li-ion cell, while the Cortex-A5 runs a safety-certified RTOS or Linux with full MMU protection between trusted medical firmware and connectivity stacks. The integrated audio subsystem supports direct connection to digital stethoscope microphones or pulse-oximeter sensors, eliminating external CODEC ICs. Compared with discrete MCU + audio CODEC designs, the D23 reduces PCB area, which is critical for wrist-worn form factors.
Recomendado
Industrial Printer and Label Maker Controllers
Industrial label printers need fast pixel rendering, USB host connectivity for flash drives, and Ethernet for fleet management. The ATSAMA5D23B-CN integrates an LCD controller that doubles as a print-head buffer interface, while the EMAC and USB HS ports handle print-job upload and flash-drive printing simultaneously. The 128 kbyte L2 cache holds frequently used font tables, eliminating constant DDR fetches during high-speed thermal-head actuation. Compared with separate printer-engine controller + network processor solutions, the D23 reduces component count and simplifies the thermal management of the enclosed print mechanism.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para ATSAMA5D23B-CN — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | ATSAMA5D23A-CN | ATSAMA5D23B-CNR | ATSAMA5D22B-CUR | ATSAMA5D21B-CU | ATSAMA5D225C-D1M-CU |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 196-TFBGA (11x11) | 196-TFBGA (11x11) - same | 196-TFBGA (11x11) - same | 196-TFBGA (11x11) - same | 196-TFBGA (11x11) - same | 196-TFBGA (11x11) - same |
| Core | 1x Cortex-A5 500 MHz | 1x Cortex-A5 500 MHz | 1x Cortex-A5 500 MHz | 1x Cortex-A5 500 MHz | 1x Cortex-A5 500 MHz | 2x Cortex-A5 500 MHz |
| L2 Cache | 128 kbyte | 128 kbyte | 128 kbyte | 64 kbyte | 64 kbyte | 256 kbyte |
| Backup Mode Current | 5 uA | 5 uA | 5 uA | 5 uA | 5 uA | 5 uA |
| Silicon Revision | B | A | B | B | B | C |
| Peripheral Mix | Full (CAN-FD x2, EMAC, USB HS, ISI, audio) | Full - same | Full - same | Reduced | Most reduced | Extended + dual-core |
| Pricing Tier (1 pc) | $14.85 | $13.50 (typical) | $14.85 | $12.10 (typical) | $10.85 (typical) | $22.50 (typical) |
| ARM TrustZone | Yes | Yes | Yes | Yes | Yes | Yes |
Diferenciadores clave
- Revision B silicon with latest errata fixes (frente a ATSAMA5D23A-CN)
- Full peripheral mix at lower cost than dual-core D225 (frente a ATSAMA5D225C-D1M-CU)
- Larger 128 kbyte L2 cache versus cost-reduced siblings (frente a ATSAMA5D21B-CU)
Notas de diseño
The 196-TFBGA package uses a 0.8 mm ball pitch, which on a 4-layer PCB allows standard microvia stack-up but still requires laser-via-in-pad for the inner-row balls. Use 1 oz copper on outer layers and 0.5 oz on inner layers; route all signals on the top layer and power on inner layers to maximize thermal dissipation through the BGA land pattern. The Microchip SAMA5D2 hardware design checklist recommends a continuous ground plane under the BGA with no signal traces crossing the keep-out zone.
Estimated: at 500 MHz with both cores active and 1.0 V VDDcore, the ATSAMA5D23B-CN dissipates approximately 0.6-0.9 W depending on workload. The 11x11 TFBGA has a theta_JA around 25 C/W on a 4-layer JEDEC test board, so the junction-to-ambient rise is roughly 15-23 C. For sealed enclosures without forced airflow, derate the clock to 400 MHz or add a small thermal pad to the BGA center balls to keep Tj below 105 C under industrial -40 C to +85 C ambient conditions.
The SAMA5D2 family requires careful power-rail sequencing: VDDCORE must ramp before VDDIO, and the SHDN pin must be held low until both rails are stable. Use the Microchip MIC2800 or equivalent PMIC to provide the 1.0 V core, 1.8 V DDR, and 3.3 V IO rails in the correct order. Add 10 uF + 100 nF decoupling on each rail adjacent to every BGA row, and place a bulk 22 uF tantalum within 25 mm of the chip to handle peak Cortex-A5 load transients during NEON activation.
Do not connect DDR3 power directly to the LPDDR/DDR2/DDR3 reference voltage without a series resistor for output impedance matching - the SAMA5D2 DQS traces must be length-matched within 25 ps. Also, the peripheral touch controller (PTC) requires firmware calibration per PCB; do not skip the production-line calibration routine or touch sensitivity will vary significantly across units. Finally, the backup mode current of 5 uA assumes the RTC crystal ESR is below 60 ohms - higher-ESR crystals can push backup current above 15 uA.
Información de cumplimiento
RoHS and REACH compliance per Microchip product page; halogen-free status not explicitly listed in verified web data. AEC-Q100 is not applicable to industrial-grade MPUs in this family.