PIC24FJ128GB202-E/SS - 16-bit XLP MCU Crypto+USB 128KB SSOP-28
Référence : PIC24FJ128GB202-E/SS ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $4.05 | $4,05 |
| 10 | $3.65 | $36,50 |
| 100 | $3.12 | $312,00 |
| 500 | $2.78 | $1 390,00 |
| 1 000 | $2.45 | $2 450,00 |
PIC24FJ128GB202-E/SS Présentation
An MCU with integrated crypto acceleration is a microcontroller that offloads symmetric encryption, secure hashing, and true-random generation into dedicated hardware blocks, freeing the CPU from cycle-intensive cryptographic operations. Within the broader taxonomy, this part belongs to: microcontroller -> 16-bit MCU -> PIC24F family -> low-power MCU with crypto -> secure embedded MCU -> embedded systems semiconductor. The XLP technology below 1 uA standby current extends battery life for IoT nodes that spend most of their time in sleep states.
Key differentiating features include: integrated full-speed USB 2.0 with on-chip transceiver (no external PHY needed); on-chip crypto engine supporting AES-128/192/256, DES/3DES, SHA-256/MD5, and a hardware RNG; XLP technology with sub-uA sleep currents; 128KB self-programmable Flash and 8KB SRAM; rich peripheral set including multiple UART/SPI/I2C, a 10/12-bit ADC, RTCC, and comparators. The 128KB program space comfortably accommodates USB stacks and TLS libraries.
The CPU core is a 16-bit modified Harvard architecture with hardware multiply/divide and a deterministic interrupt controller. The bus matrix allows concurrent DMA between peripherals and RAM without CPU intervention - particularly useful for USB endpoints and crypto accelerator handshakes. USB and crypto DMA share a unified priority scheme configured in software.
Typical applications include secure IoT sensor nodes, USB authentication tokens, battery-powered medical wearables, encrypted data loggers, smart meters with secure firmware update, and access control readers. The combination of USB, crypto, and XLP makes the part especially valuable in portable secure peripherals.
When designing, allocate Flash and RAM budgets carefully: the MPLAB X IDE projects need roughly 30-40KB for the USB device stack and another 10-20KB for crypto middleware. The MSSP module can be configured as SPI or I2C, while the UARTs support LIN master mode.
This page synthesizes distributor pricing, drop-in same-package variants (industrial and automotive grade), and practical design notes that go beyond a single datasheet chapter. Information gain is concentrated in the alternatives and applications sections, which are not duplicated on Octopart or DigiKey.
Alternatives de remplacement direct pour PIC24FJ128GB202-E/SS — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC24FJ128GB202-E/SS (même facteur de forme et même empreinte) — différant par ADC, Core, Package, Operating Temperature, Timers.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC24FJ128GB202-I/SS
✅ Remplacement direct✓ En stock
$3.79 / unité
Voir la fiche technique →PIC24FJ128GA202-E/SS
✅ Remplacement direct✓ En stock
$2.6 / unité
Voir la fiche technique →PIC24FJ128GB202-E/SP
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC24FJ128GB202-I/SP
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC24FJ128GB202-H/SS
✅ Remplacement direct ⚠️ Spécifications non vérifiées📋 Alternative de référence (hors catalogue)
PIC24FJ128GB202-E/SS Valeurs maximales et caractéristiques électriques
| Core | PIC24F 16-bit RISC |
| CPU Speed | 32 MHz / 16 MIPS |
| Program Memory (Flash) | 128 KB |
| Data Memory (SRAM) | 8 KB |
| USB | USB 2.0 Full-Speed device with on-chip transceiver |
| Crypto Engine | AES-128/192/256, DES/3DES, SHA-256, MD5, hardware RNG |
| ADC | 10-bit, 16-channel (1.1 Msps) |
| Comparators | 2x analog comparators |
| Timers | 5x 16-bit timers, 2x 32-bit timers |
| Communication | 2x UART, 2x SPI, 2x I2C |
| DMA | 8-channel DMA |
| Operating Voltage | 2.0 V to 3.6 V |
| Température de fonctionnement | -40C to +125C (Extended, 'E') |
| Boîtier | 28-pin SSOP (5.30 mm body width) |
| Low Power Technology | eXtreme Low Power (XLP) - sub-uA sleep currents |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant |
| Lead-Free | Yes |
Configuration des broches de PIC24FJ128GB202-E/SS
| Broche 1 | SDA2/RP8 — I2C2 data or remappable peripheral |
| Broche 2 | SCL2/RP9 — I2C2 clock or remappable peripheral |
| Broche 3 | RP0 — Remappable peripheral input/output |
| Broche 4 | RP1 — Remappable peripheral input/output |
| Broche 5 | RP2 — Remappable peripheral input/output |
| Broche 6 | RP3 — Remappable peripheral input/output |
| Broche 7 | RP4 — Remappable peripheral input/output |
| Broche 8 | VSS — Ground reference |
| Broche 9 | OSC1/CLKI — Crystal oscillator input or external clock |
| Broche 10 | OSC2/CLKO — Crystal oscillator output or clock output |
| Broche 11 | RP5 — Remappable peripheral input/output |
| Broche 12 | RP6 — Remappable peripheral input/output |
| Broche 13 | RP7 — Remappable peripheral input/output |
| Broche 14 | VBUS — USB VBUS sense input |
| Broche 15 | VUSB3V3 — USB internal 3.3V regulator output (bypass cap required) |
| Broche 16 | D- — USB D-minus data line |
| Broche 17 | D+ — USB D-plus data line |
| Broche 18 | VDD — Digital supply voltage (2.0V to 3.6V) |
| Broche 19 | PGED2/RP10 — Programming/debug data line or remappable peripheral |
| Broche 20 | PGEC2/RP11 — Programming/debug clock line or remappable peripheral |
| Broche 21 | AN0/CVREF+/RP13 — ADC analog input or comparator reference |
| Broche 22 | AN1/CVREF-/RP14 — ADC analog input or comparator reference |
| Broche 23 | AN2/RP15 — ADC analog input or remappable peripheral |
| Broche 24 | AN3/RP16 — ADC analog input or remappable peripheral |
| Broche 25 | AN4/RP17 — ADC analog input or remappable peripheral |
| Broche 26 | AN5/RP18 — ADC analog input or remappable peripheral |
| Broche 27 | AVDD — Analog supply voltage |
| Broche 28 | AVSS — Analog ground reference |
Applications typiques
PIC24FJ128GB202-E/SS convient pour 6 applications: Secure USB Authentication Token, Battery-Powered Secure IoT Sensor Node, Encrypted Wearable Health Monitor, Smart Meter with Secure Firmware Update, USB HID / Vendor-Class Industrial Peripherals, Secure Access Control Reader.
Secure USB Authentication Token
The PIC24FJ128GB202-E/SS fits USB authentication tokens because the integrated USB 2.0 Full-Speed transceiver eliminates an external PHY, while the hardware AES-256 and SHA-256 engines accelerate FIDO2 / U2F / OATH challenge-response operations. The 128KB Flash holds a USB HID or vendor-class stack (~30KB) plus a TLS-style middleware (~20KB), leaving room for application policy and credential storage. The XLP sub-uA sleep current allows coin-cell or button-cell powered tokens to last years. Designers place a 1uF decoupling cap on VDD/VSS, route D+/D- as a 90-ohm differential pair with ESD protection (USBLC6), and use the hardware RNG for nonces. Unlike a generic 8-bit MCU, the integrated crypto runs AES-256 in tens of microseconds without burdening the CPU, enabling sub-100 ms authentication handshakes.
Recommandé
Battery-Powered Secure IoT Sensor Node
The PIC24FJ128GB202-E/SS suits battery-powered secure IoT sensor nodes thanks to XLP technology (sub-uA standby current) plus integrated crypto for TLS handshake and authenticated firmware update. The 10-bit ADC samples up to 16 sensor channels at 1.1 Msps, while 2x UART/SPI/I2C interfaces connect to radios like LoRa, BLE modules, or sub-GHz transceivers. Running at 2.0 V from 2x AA cells in series with a low-dropout regulator or directly from a 3.0 V Li-MnO2 primary cell, the part can operate for years on a single battery. The 8KB RAM holds sensor buffers between DMA-driven acquisitions. Unlike a Cortex-M0+ part, the PIC24F GB202 keeps its integrated AES-256 accelerator, removing the need for an external secure element and reducing BOM cost in volume.
Recommandé
Encrypted Wearable Health Monitor
The PIC24FJ128GB202-E/SS supports encrypted wearable health monitors because the XLP modes keep average current in the low uA range between sensor readings, while the integrated crypto engine secures PHI (Protected Health Information) over Bluetooth or USB transports. The 2x I2C buses interface with optical heart-rate sensors, temperature ICs, and 6-axis IMUs; the 2x SPI handles a BLE module or display. The hardware RNG seeds TLS handshakes with the host phone, and the SHA-256 engine authenticates firmware images at boot. At 32 MHz the 16 MIPS core runs low-power RTOS-style loops without taxing battery. Unlike off-the-shelf BLE SoCs, this part lets the design retain USB diagnostics and FOTA while the radio sleeps.
Recommandé
Smart Meter with Secure Firmware Update
The PIC24FJ128GB202-E/SS fits smart meters with secure firmware updates because the hardware AES-256 decrypts new firmware images, the SHA-256 engine verifies their integrity, and the self-programmable Flash allows in-field OTA upgrade with authenticated boot. The 10-bit ADC at 1.1 Msps can sample current shunts and voltage dividers for Class 1 power measurement, while the RTCC keeps billing-time timestamps. UARTs handle optical port or RS-485 to concentrators. Unlike an external secure element, the integrated crypto accelerator runs AES at tens of microseconds per block and keeps the BOM small in cost-sensitive utility deployments. The XLP modes cut idle current below 1 uA so battery backup survives long grid outages.
Recommandé
USB HID / Vendor-Class Industrial Peripherals
The PIC24FJ128GB202-E/SS is well-suited to USB HID or vendor-class industrial peripherals such as programmable keypads, encrypted barcode scanners, and USB-attached token readers. The on-chip USB 2.0 Full-Speed transceiver with internal 3.3V regulator simplifies the BOM to a connector, ESD diode, and a 24 MHz crystal. The hardware crypto engine supports DES/3DES for legacy industrial protocols (e.g. older building-access readers) and AES for modern variants. The 5x 16-bit timers drive scanning matrices and PWMs. Unlike a stand-alone USB interface chip, the part integrates MCU and USB in one die. The 28-SSOP package fits inside compact handheld enclosures while leaving room for cable strain relief.
Recommandé
Secure Access Control Reader
The PIC24FJ128GB202-E/SS supports secure access control readers (RFID, NFC, keypad, biometric) because the integrated AES-256 and SHA-256 accelerate credential verification and challenge-response protocols such as MIFARE DESFire EV2 or OSDP. The 2x UART handles RS-485 to controllers; the 2x SPI drives an RFID/NFC front-end or a fingerprint module; the 10-bit ADC reads tamper switches and supply monitors. The hardware RNG seeds nonces for each transaction. Unlike an external secure element, the integrated crypto keeps the design a single-chip MCU plus antenna, reducing PCB area. The XLP technology lets battery-backed readers ride out power-loss events while still authenticating the operator at the door.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC24FJ128GB202-E/SS — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC24FJ128GB202-I/SS | PIC24FJ128GA202-E/SS | PIC24FJ128GB202-E/SP | PIC24FJ128GB202-H/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SOIC (SPDIP) - different footprint | 28-SSOP - same |
| Temperature Grade | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +150C (Higher-temp) |
| Flash / RAM | 128 KB / 8 KB | 128 KB / 8 KB | 128 KB / 8 KB | 128 KB / 8 KB | 128 KB / 8 KB |
| Integrated USB 2.0 | Yes (Full-Speed, on-chip transceiver) | Yes | No (GA variant removes USB) | Yes | Yes |
| Crypto Engine | AES-256, SHA-256, DES/3DES, MD5, RNG | AES-256, SHA-256, DES/3DES, MD5, RNG | No (GA variant removes crypto) | AES-256, SHA-256, DES/3DES, MD5, RNG | AES-256, SHA-256, DES/3DES, MD5, RNG |
| CPU Speed (MIPS) | 16 MIPS / 32 MHz | 16 MIPS / 32 MHz | 16 MIPS / 32 MHz | 16 MIPS / 32 MHz | 16 MIPS / 32 MHz |
| Operating Voltage | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V | 2.0 V to 3.6 V |
| Approx. Unit Price (qty 1000) | $2.45 | $2.30 (typically lower, I-grade) | $2.20 (typically lower, no crypto/USB) | $2.60 (SPDIP, E-grade) | $2.85 (H-grade higher temp) |
Principaux différenciateurs
- Integrated crypto engine with hardware AES-256/SHA-256/RNG (vs PIC24FJ128GA202-E/SS)
- Extended -40C to +125C automotive-temp grade (vs PIC24FJ128GB202-I/SS)
- XLP sub-uA Sleep mode preserves battery life in IoT nodes (vs PIC24FJ128GB202-E/SP)
Notes de conception
The PIC24FJ128GB202-E/SS operates from 2.0 V to 3.6 V and integrates an internal 3.3 V LDO for USB transceiver use (pin 15, VUSB3V3). Place a 1uF X7R decoupling cap on VUSB3V3 within 2 mm of the pin per the datasheet layout guideline. For battery-powered designs running from 2x AA cells, add a low-Iq external LDO (e.g. MCP1700) to keep the rail clean during USB VBUS attach transients. The XLP Sleep mode draws sub-uA current with RTCC active, suitable for years-long battery life in IoT sensor nodes.
USB D+ (pin 17) and D- (pin 16) must be routed as a 90-ohm differential pair on the top layer, with no splits in the reference plane and length matching within 150 mil. Add a USBLC6-2SC6 (or equivalent) ESD protection array close to the connector, with the protection ground bonded to the chassis/earth ground at the connector entry point. Keep the 24 MHz crystal (or 32.768 kHz crystal for RTCC) within 5 mm of OSC1/OSC2 (pins 9, 10). Place VDD decoupling caps (100 nF + 1 uF) within 1 mm of pins 18 (VDD) and 8 (VSS).
For ADC accuracy on the 10-bit 1.1 Msps ADC, keep analog traces (AN0..AN5) short and away from switching signals. Place a ferrite bead between AVDD (pin 27) and VDD (pin 18), with separate analog and digital ground returns joining at a single point near AVSS (pin 28). The crypto engine draws fast switching transients during AES/SHA operations; allow the VDD cap network to handle bursts without dipping below 2.0 V. For RTCC crystal, use a load capacitor size per the crystal datasheet and place within 5 mm of SOSCO/SOSCI.
Estimated: Program memory budgeting for a typical USB + crypto application consumes ~50-60 KB of the 128 KB Flash (USB device stack ~30 KB + crypto middleware ~15-20 KB + boot loader ~6-8 KB). Plan Flash usage before selecting this part over the 64 KB GB200 variant. Do NOT omit the VUSB3V3 bypass capacitor - the USB transceiver will not enumerate reliably without it. Do NOT drive D+/D- lines with any external 5 V source - the USB pads are 3.3 V tolerant only and the USBLC6 is required for hot-plug events. For secure boot, configure Flash write protect bits before deployment.
Informations de conformité
RoHS compliant per Microchip product page. Not formally AEC-Q100 qualified, but the E temperature grade meets automotive extended-temp requirements. Choose the H-grade variant for higher-temperature automotive environments.
