N32H493 - 240MHz Cortex-M4F MCU for 800G Optical Modules
N.º de pieza: N32H493 ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $6.5 | $6,50 |
| 10 | $5.85 | $58,50 |
| 100 | $5.2 | $520,00 |
| 500 | $4.65 | $2.325,00 |
| 1.000 | $4.1 | $4.100,00 |
N32H493 Descripción general
A microcontroller (MCU) is an integrated circuit containing a processor core, program memory (Flash), data memory (RAM), and a rich set of programmable peripherals on a single die. Within the broader semiconductor taxonomy, the N32H493 sits under: MCU -> microcontroller -> embedded processor -> semiconductor IC. The Cortex-M4F core places it in the deterministic real-time control class, while its 240 MHz clock and 1 MB Flash put it in the high-performance segment typically reserved for motor control, industrial automation, and now high-bandwidth optical interconnect.
Key differentiating features include three 12-bit 4.7 Msps ADCs and two 12-bit DACs for analog monitoring of optical bias points, an xSPI high-speed external memory interface for off-chip boot/expansion, and hardware cryptographic/security accelerators targeted at secure boot and firmware protection. Communication peripherals include multiple U(S)ART, I2C, SPI, plus advanced, general-purpose, and low-power timers. The dual-bank Flash architecture supports in-field firmware updates (OTA) without downtime, a critical requirement for deployed datacenter transceivers.
The N32H493 is purpose-built as the dedicated control MCU inside QSFP-DD800 and OSFP 1.6T optical modules, where it manages CDR/CDR-less SerDes configuration, TEC (thermo-electric cooler) control via the on-chip DACs and ADCs, laser bias loops, I2C/CMIS management interface, and host-facing alarm/interrupt signaling. Internal hardware security and dual-bank Flash allow fail-safe firmware updates in the field.
Alternativas directas para N32H493 — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
N32H493REB7
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
N32H482REB7
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
N32H474REL7
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
N32H493 Valores máximos y características eléctricas
| Core Architecture | ARM Cortex-M4F (32-bit, with FPU and DSP) |
| Maximum CPU Frequency | 240 MHz |
| Floating Point Unit | Yes (single-precision) |
| DSP Instructions | Yes (ARM DSP extension) |
| Embedded Flash | Up to 1 MB (dual-bank) |
| SRAM | 256 KB total (192 KB general + 64 KB CCM) |
| Backup SRAM | 4 KB (battery-domain retention) |
| ADC | 3 x 12-bit, 4.7 Msps |
| DAC | 2 x 12-bit |
| High-Speed External Memory Interface | xSPI (Octal-SPI/HyperBus-class) |
| Communication Interfaces | U(S)ART, I2C, SPI |
| Timers | Advanced, general-purpose, basic, low-power timers |
| Hardware Security | Integrated hardware crypto/security accelerators |
| Primary Application | 800G/1.6T optical module controller |
| Package Options | BGA-64 (5x5) and additional variants per datasheet |
| Estado RoHS | Compliant (per JLCPCB listing) |
Guía de configuración de pines de N32H493 bga-64 (5x5) and additional variants per datasheet
Configuración de pines para N32H493 (encapsulado bga-64 (5x5) and additional variants per datasheet). 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 N32H493.
Consulte la hoja de datos para ver la configuración completa de patillas.
Aplicaciones típicas
N32H493 es adecuado para 6 aplicacións: 800G/1.6T Optical Module Controller, Industrial Motor Control and DSP Drive, Secure IoT Edge Gateways, High-Speed Data Acquisition Systems, Power Conversion and Digital Control Loops, Medical Patient Monitoring and Diagnostic Devices.
800G/1.6T Optical Module Controller
The N32H493 is purpose-built for 800G and 1.6T optical transceivers (QSFP-DD800, OSFP 1.6T). At 240 MHz with Cortex-M4F DSP, it closes the laser-bias and TEC control loops in microseconds using its three 12-bit 4.7 Msps ADCs and two 12-bit DACs, while the dual-bank 1 MB Flash supports CMIS-mandated in-field firmware swap without module reset. The on-chip hardware crypto accelerators authenticate boot images, satisfying MSAs that forbid unsigned firmware in deployed modules.
Recomendado
Industrial Motor Control and DSP Drive
Outside the optical-module niche, the N32H493's 240 MHz Cortex-M4F with FPU and DSP instructions, plus three fast 12-bit ADCs and multiple advanced timers, make it a strong fit for high-end industrial motor drives and field-oriented control (FOC). The xSPI bus lets designers expand execution memory for complex commutation algorithms without paying the latency of SPI legacy mode, while the BGA-64 5x5 footprint fits compact IPM-rated inverter boards.
Recomendado
Secure IoT Edge Gateways
The N32H493's hardware crypto accelerators and dual-bank Flash enable secure-boot and OTA-update behavior required for hardened edge gateways. The 256 KB SRAM (with 64 KB CCM) is enough to run TLS, MQTT, and a small embedded web server, while the xSPI interface can attach a fast Octal-PSRAM for buffering bursts of sensor traffic without overflow. Industrial -40C to +85C support allows outdoor deployment.
Recomendado
High-Speed Data Acquisition Systems
The N32H493 integrates three 12-bit 4.7 Msps ADCs - over 14 MSPS aggregate - which is rare at this package size and price. Combined with Cortex-M4F DSP, it can perform on-chip FIR/FFT decimation for power-line monitoring, vibration analysis, or ultrasonic flow metering. The 1 MB Flash stores calibration tables, and the xSPI bus streams decimated data to a host SoC over SPI/U(S)ART.
Recomendado
Power Conversion and Digital Control Loops
For digital-control AC/DC, DC/DC, or PFC converters, the N32H493 offers a 240 MHz Cortex-M4F core that closes a 100 kHz control loop with comfortable headroom for housekeeping and communication. Its two 12-bit DACs and three fast ADCs enable mixed-mode control, while the advanced timers generate the high-resolution PWMs required for totem-pole PFC and LLC topologies in datacom and telecom rectifier designs.
Recomendado
Medical Patient Monitoring and Diagnostic Devices
In patient monitors and portable diagnostic equipment, the N32H493's DSP extensions accelerate ECG and pulse-oximetry filter chains, while its three 12-bit ADCs digitize multiple sensor channels simultaneously. Hardware crypto and secure boot protect PHI on the wire, and dual-bank Flash supports regulatory-mandated firmware updates. The small BGA-64 package fits wearable form factors without sacrificing analog performance.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para N32H493 — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | N32H493REB7 | N32H482REB7 | N32H474REL7 | GD32F470IIH6 |
|---|---|---|---|---|---|
| Brand | Nations Technologies | Nations Technologies | Nations Technologies | Nations Technologies | GigaDevice |
| Package | BGA-64 (5x5) | BGA-64 (5x5) - same | BGA-64 (5x5) - same | BGA-64 (5x5) - same | BGA-176 (different) |
| Core | Cortex-M4F | Cortex-M4F | Cortex-M4F | Cortex-M4F | Cortex-M4F |
| Maximum CPU Frequency | 240 MHz | 240 MHz | 200 MHz | 180 MHz | 240 MHz |
| Embedded Flash | Up to 1 MB (dual-bank) | 1 MB dual-bank | 512 KB | 256 KB | 3 MB |
| SRAM | 256 KB (incl. 64 KB CCM) + 4 KB backup | 256 KB + 4 KB backup | 192 KB | 128 KB | 512 KB |
| ADC | 3 x 12-bit, 4.7 Msps | 3 x 12-bit, 4.7 Msps | 2 x 12-bit, 4 Msps | 2 x 12-bit, 1 Msps | 3 x 12-bit, 2 Msps |
| DAC | 2 x 12-bit | 2 x 12-bit | 2 x 12-bit | 1 x 12-bit | 2 x 12-bit |
| xSPI / Octal-SPI | Yes | Yes | Yes | No | No (OSPI optional) |
| Hardware Crypto | Yes | Yes | Yes | No | External required |
| Target Application | 800G/1.6T optical module | 800G/1.6T optical module | Industrial control | General-purpose MCU | Industrial / consumer |
Diferenciadores clave
- Dual-bank 1 MB Flash with hardware crypto, in a BGA-64 5x5 footprint (frente a N32H474REL7)
- Purpose-tuned for 800G/1.6T optical modules with 3 fast 12-bit ADCs and 2 DACs (frente a GD32F470IIH6)
- Compact BGA-64 5x5 with no compromise on Flash density or peripheral set (frente a STM32H743)
Notas de diseño
Estimated: at full 240 MHz operation with all peripherals enabled, the N32H493 in BGA-64 (5x5) typically dissipates under 0.4 W; ensure at least four thermal vias in a central array under the BGA die paddle and a continuous top-layer copper pour to keep junction temperature below 105 C in industrial environments. For module-internal designs (inside a sealed optical transceiver), confirm case-temperature rise via thermocouple measurements, not just datasheet theta-JA.
Route the xSPI signals to the BGA-64 footprint as a tightly length-matched 50-ohm impedance group; place a 0.1 uF decoupling cap on every VDD/VSS pair adjacent to the BGA, and a bulk 4.7 uF near the package. The internal regulator's noise directly affects the 12-bit ADC SNR, so keep the analog VREF pin isolated from digital switching returns by a ground island and a ferrite bead.
Do not skip configuration of the dual-bank Flash swap interrupt before enabling in-field updates; an unintended watchdog reset during bank-switch can brick the module in the field. Always validate the new image's CRC and signature using the hardware crypto accelerator before remapping the boot vector, and keep a rollback image in the inactive bank for at least one full production cycle.
The three 12-bit ADCs at 4.7 Msps share an analog supply pin; if the application needs simultaneous sampling across all three channels, route the analog VREF through a dedicated low-noise LDO and avoid sharing it with the DAC analog supply. Buried vias under BGA balls can degrade ADC linearity if the via stubs exceed 0.3 mm - use back-drilling or blind-via stacks for high-precision channels.
Información de cumplimiento
RoHS compliance and lead-free confirmed via JLCPCB BGA-64 listing. REACH, halogen-free, and conflict-minerals status not explicitly stated in the verified web data - set to 'unknown'. AEC-Q100 not applicable - N32H493 targets optical-module/industrial, not automotive.
