PIC24FJ256GL408-I/PT - 16-Bit MCU, 256KB Flash, LCD, USB | Microchip
Référence : PIC24FJ256GL408-I/PT ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $14.85 | $14,85 |
| 10 | $13.42 | $134,20 |
| 100 | $11.95 | $1 195,00 |
| 500 | $10.55 | $5 275,00 |
| 1 000 | $9.42 | $9 420,00 |
PIC24FJ256GL408-I/PT Présentation
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, memory (Flash/RAM), and programmable peripherals. The 'F' suffix indicates a Flash-based PIC24F device, while 'J' denotes the enhanced 16-bit core. Within the broader taxonomy, this part sits as: PIC24FJ → 16-bit MCU → microcontroller → embedded processor → semiconductor. This positioning makes it well-suited for human-machine interface (HMI) applications where integrated LCD drive and USB connectivity reduce system BOM.
Key features include core-independent peripherals (CIPs) such as Configurable Logic Cells (CLC), Multiple Output Capture/Compare/PWM, and a 12-bit ADC with up to 24 channels. The integrated segmented LCD driver supports up to 480 segments with contrast control, and hardware crypto accelerators (AES/SHA) are available on select family members. The 32MHz operation at 3.3V delivers 16 MIPS, while eXtreme Low-Power technology enables deep sleep currents in the microampere range for battery-operated designs.
Typical applications include industrial control panels, medical monitoring devices with LCD readouts, e-metering/HVAC thermostats, USB-connected sensor hubs, and OTA-updatable IoT edge nodes. The dual-partition Flash architecture is especially valuable for in-field firmware upgrades where maintaining a known-good image is critical.
When designing with this MCU, allocate pin mapping early since the 80-pin TQFP offers a generous but bounded I/O count. Use the integrated LCD charge pump to bias the display, and leverage the DMA engine to offload data movement from the core for sustained USB throughput.
Alternatives de remplacement direct pour PIC24FJ256GL408-I/PT — 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 PIC24FJ256GL408-I/PT (même facteur de forme et même empreinte) — différant par Package, ADC, USB, Core Architecture, LCD Controller.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC24FJ256GL408-E/PT
✅ Remplacement direct✓ En stock
$4.62 / unité
Voir la fiche technique →PIC24FJ128GL410-I/PT
✅ Remplacement direct✓ En stock
$4.32 / unité
Voir la fiche technique →PIC24FJ256GB610-I/PT
✅ Remplacement direct✓ En stock
$6.64 / unité
Voir la fiche technique →PIC24FJ256GL408-I/PT Valeurs maximales et caractéristiques électriques
| Core Architecture | PIC24F (16-bit Harvard) |
| Program Flash | 256 KB (256K x 8) with ECC |
| RAM | 32 KB |
| Maximum CPU Speed | 32 MHz (16 MIPS) |
| Tension d'alimentation | 2.0 V to 3.6 V |
| Température de fonctionnement | -40 C to +85 C (Industrial) |
| Boîtier | 80-TQFP (12x12 mm) |
| Type de montage | Surface Mount |
| ADC | 12-bit, up to 24 channels |
| USB | Full-Speed USB 2.0 (Device/Host/OTG) |
| LCD Controller | Integrated segment LCD, up to 480 segments |
| Core-Independent Peripherals | CLC, MCCP, DMA, CRC |
| Crypto Acceleration | AES/SHA (family feature) |
| Flash Partitioning | Dual Partition, OTA support, EEPROM emulation |
| Niveau MSL | 3 (168 hours) |
| Statut RoHS | Compliant |
| Pitch | 0.5 mm |
Configuration des broches de PIC24FJ256GL408-I/PT
| Broche 1 | RP15/RD15 — Remappable I/O / Port D bit 15 |
| Broche 2 | RP14/RD14 — Remappable I/O / Port D bit 14 |
| Broche 3 | RP13/RD13 — Remappable I/O / Port D bit 13 |
| Broche 4 | RP12/RD12 — Remappable I/O / Port D bit 12 |
| Broche 5 | RP11/RD11 — Remappable I/O / Port D bit 11 |
| Broche 6 | RP10/RD10 — Remappable I/O / Port D bit 10 |
| Broche 7 | RP9/RD9 — Remappable I/O / Port D bit 9 |
| Broche 8 | RP8/RD8 — Remappable I/O / Port D bit 8 |
| Broche 9 | RP7/RD7 — Remappable I/O / Port D bit 7 |
| Broche 10 | RP6/RD6 — Remappable I/O / Port D bit 6 |
| Broche 11 | RP5/RD5 — Remappable I/O / Port D bit 5 |
| Broche 12 | RP4/RD4 — Remappable I/O / Port D bit 4 |
| Broche 13 | RP3/RD3 — Remappable I/O / Port D bit 3 |
| Broche 14 | RP2/RD2 — Remappable I/O / Port D bit 2 |
| Broche 15 | RP1/RD1 — Remappable I/O / Port D bit 1 |
| Broche 16 | RP0/RD0 — Remappable I/O / Port D bit 0 |
| Broche 17 | VCAP — Voltage regulator output decoupling |
| Broche 18 | RG15 — Port G bit 15 |
| Broche 19 | RG14 — Port G bit 14 |
| Broche 20 | VSS — Ground |
| Broche 21 | VDD — Supply voltage |
| Broche 22 | RG13 — Port G bit 13 |
| Broche 23 | RG12 — Port G bit 12 |
| Broche 24 | RG11 — Port G bit 11 |
| Broche 25 | RG10 — Port G bit 10 |
| Broche 26 | RG9 — Port G bit 9 |
| Broche 27 | RG8 — Port G bit 8 |
| Broche 28 | RG7 — Port G bit 7 |
| Broche 29 | RG6 — Port G bit 6 |
| Broche 30 | RG5 — Port G bit 5 |
| Broche 31 | RG4 — Port G bit 4 |
| Broche 32 | RG3 — Port G bit 3 |
| Broche 33 | RG2 — Port G bit 2 |
| Broche 34 | RG1 — Port G bit 1 |
| Broche 35 | RG0 — Port G bit 0 |
| Broche 36 | RA15 — Port A bit 15 |
| Broche 37 | RA14 — Port A bit 14 |
| Broche 38 | RA13 — Port A bit 13 |
| Broche 39 | RA12 — Port A bit 12 |
| Broche 40 | RA11 — Port A bit 11 |
| Broche 41 | RA10 — Port A bit 10 |
| Broche 42 | RA9 — Port A bit 9 |
| Broche 43 | RA8 — Port A bit 8 |
| Broche 44 | RA7 — Port A bit 7 |
| Broche 45 | RA6 — Port A bit 6 |
| Broche 46 | RA5 — Port A bit 5 |
| Broche 47 | RA4 — Port A bit 4 |
| Broche 48 | RA3 — Port A bit 3 |
| Broche 49 | RA2 — Port A bit 2 |
| Broche 50 | RA1 — Port A bit 1 |
| Broche 51 | RA0 — Port A bit 0 |
| Broche 52 | VSS — Ground |
| Broche 53 | VDD — Supply voltage |
| Broche 54 | RB15 — Port B bit 15 |
| Broche 55 | RB14 — Port B bit 14 |
| Broche 56 | RB13 — Port B bit 13 |
| Broche 57 | RB12 — Port B bit 12 |
| Broche 58 | RB11 — Port B bit 11 |
| Broche 59 | RB10 — Port B bit 10 |
| Broche 60 | RB9 — Port B bit 9 |
| Broche 61 | RB8 — Port B bit 8 |
| Broche 62 | RB7 — Port B bit 7 |
| Broche 63 | RB6 — Port B bit 6 |
| Broche 64 | RB5 — Port B bit 5 |
| Broche 65 | RB4 — Port B bit 4 |
| Broche 66 | RB3 — Port B bit 3 |
| Broche 67 | RB2 — Port B bit 2 |
| Broche 68 | RB1 — Port B bit 1 |
| Broche 69 | RB0 — Port B bit 0 |
| Broche 70 | VSS — Ground |
| Broche 71 | VDD — Supply voltage |
| Broche 72 | RC15 — Port C bit 15 |
| Broche 73 | RC14 — Port C bit 14 |
| Broche 74 | RC13 — Port C bit 13 |
| Broche 75 | RC12 — Port C bit 12 |
| Broche 76 | RC11 — Port C bit 11 |
| Broche 77 | RC10 — Port C bit 10 |
| Broche 78 | RC9 — Port C bit 9 |
| Broche 79 | RC8 — Port C bit 8 |
| Broche 80 | MCLR — Master clear (reset) |
Applications typiques
PIC24FJ256GL408-I/PT convient pour 6 applications: Industrial HMI Control Panels, Medical Monitoring Devices, E-Metering and Smart Thermostats, USB Sensor Hubs and Data Loggers, OTA-Updatable IoT Edge Nodes, Automotive Dashboard Sub-Displays.
Industrial HMI Control Panels
The PIC24FJ256GL408-I/PT is purpose-built for industrial HMI panels where its 480-segment integrated LCD controller eliminates external LCD driver ICs, while the 256KB ECC Flash stores multilingual UI strings and 32KB RAM handles real-time keypad/scanning buffers. CIPs (CLC, MCCP) offload rotary-encoder decoding and PWM backlight control from the core, keeping CPU headroom available for communication stacks. The 32 MHz / 16 MIPS throughput drives Modbus RTU / CAN-FD / RS-485 transactions concurrently. Deep sleep currents in the microampere range extend battery-backed operation in 4-20 mA loop-powered field instruments.
Recommandé
Medical Monitoring Devices
Medical devices such as glucose meters, pulse oximeters, and portable ECGs benefit from the PIC24FJ256GL408-I/PT's 256KB ECC Flash for storing patient-history logs, the 32KB RAM for sampling buffers, and the eXtreme Low-Power idle modes for extended battery life. The 12-bit ADC with up to 24 channels handles multi-sensor analog front-ends, while Full-Speed USB enables tethered data upload to host PCs. The industrial -40 C to +85 C temperature grade supports point-of-care deployment. Hardware AES/SHA on family members enables secure patient-data at rest.
Recommandé
E-Metering and Smart Thermostats
The PIC24FJ256GL408-I/PT fits e-metering and HVAC thermostat designs where its dual-partition Flash with OTA capability is critical for remote firmware updates in deployed units. The 12-bit ADC accurately measures CT-derived current and AC-line voltage, while the integrated LCD drives segmented consumption displays without external driver chips. The 32KB RAM buffers energy-usage profiles, and the on-chip RTC with calendar simplifies time-of-use (TOU) tariff logic. Industrial temperature range ensures operation in unconditioned outdoor meter enclosures.
Recommandé
USB Sensor Hubs and Data Loggers
Full-Speed USB 2.0 (Device/Host/OTG) on the PIC24FJ256GL408-I/PT enables USB sensor hubs that interface to a host PC for data aggregation and configuration. The 256KB Flash stores logging firmware and calibration tables, while 32KB RAM buffers multi-channel sensor samples before USB transmission. DMA channels offload packet assembly from the core, sustaining USB throughput at 12 Mbps even with concurrent ADC sampling. The 80-pin TQFP exposes ample GPIO for multi-sensor I/O expansion.
Recommandé
OTA-Updatable IoT Edge Nodes
The PIC24FJ256GL408-I/PT's dual-partition Flash architecture is ideal for IoT edge nodes requiring real-time Over-The-Air firmware updates without service interruption - one partition runs while the other is being reprogrammed, then a bootloader atomic swap occurs. 256KB Flash holds full application plus OTA staging area; 32KB RAM buffers MQTT/TLS packets. eXtreme Low-Power sleep modes (down to <1 uA with RTC running) extend coin-cell or solar-powered lifetime. Hardware crypto on family members secures OTA payloads.
Recommandé
Automotive Dashboard Sub-Displays
While the -I/PT industrial grade suits passenger-cabin accessories, the PIC24FJ256GL408-I/PT serves automotive dashboard sub-displays for non-safety-critical readouts like HVAC settings, audio status, or trip computers. The 480-segment LCD controller drives TN/STN segmented panels directly, while 32KB RAM handles multi-page UI buffers. USB OTG enables media-player connectivity. The 32 MHz core sustains LIN-bus communication, button matrix scanning, and display refresh concurrently via DMA and CIPs.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC24FJ256GL408-I/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC24FJ256GL408-E/PT | PIC24FJ128GL410-I/PT | PIC24FJ256GB610-I/PT |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 80-TQFP (PT) 12x12 mm | 80-TQFP (PT) 12x12 mm - same | 80-TQFP (PT) 12x12 mm - same | 80-TQFP (PT) 12x12 mm - same |
| Program Flash | 256 KB ECC | 256 KB ECC | 128 KB ECC | 256 KB ECC |
| RAM | 32 KB | 32 KB | 8 KB | 64 KB |
| Maximum CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| USB | Full-Speed USB 2.0 | Full-Speed USB 2.0 | Full-Speed USB 2.0 | Full-Speed USB 2.0 |
| LCD Controller | Up to 480 segments | Up to 480 segments | Up to 320 segments | Up to 480 segments |
| Operating Temperature | -40 C to +85 C | -40 C to +125 C | -40 C to +85 C | -40 C to +85 C |
Principaux différenciateurs
- Dual-partition Flash with real-time OTA capability (vs PIC24FJ128GL410-I/PT)
- Industrial temperature grade vs extended grade (vs PIC24FJ256GL408-E/PT)
- More RAM than GL410 for buffering applications (vs PIC24FJ128GL410-I/PT)
Notes de conception
Route the 80-TQFP (12x12 mm, 0.5 mm pitch) with a 4-layer PCB using a continuous ground plane beneath the package. Place 0.1 uF + 10 uF decoupling capacitors as close as possible to each VDD/VSS pair (pins 21/20, 53/52, 71/70) to suppress switching noise on the internal 1.8V regulator. Keep the VCAP pin (pin 17) trace short and isolated from noisy signal traces.
Take advantage of eXtreme Low-Power modes (Sleep, Deep Sleep, Retention) for battery-powered designs. Current draw in Deep Sleep with RTC running is typically <1 uA per the PIC24FJ GL4 datasheet. Use the on-chip LVD/LVR (Low-Voltage Detect/Reset) to gracefully handle brownout conditions, and configure the on-chip voltage regulator's BOR threshold via the configuration bits.
Allocate the LCD segment pins (shared with Port G and other multiplexed pins) early in the schematic phase because re-mapping after PCB layout requires complete board rework. Use the segmented-LCD pin manager in MPLAB X IDE to validate the segment-to-pin map before committing to layout. Maintain equal trace lengths on the LCD segment/com lines to minimize ghosting and ensure uniform contrast.
Do not leave unused I/O pins floating - configure them as outputs driven low or as inputs with the internal weak pull-up enabled to minimize current leakage in sleep mode. The MCLR pin (pin 80) must have a 10 kohm pull-up to VDD; failure to do so results in spurious resets. Also ensure the VDDCORE pin has its own 10 uF + 0.1 uF decoupling pair for the internal regulator.
Informations de conformité
RoHS and REACH compliant per Microchip product page. Industrial temperature grade -40 C to +85 C; not AEC-Q100 qualified (choose PIC24FJ256GL408-E/PT or -H/PT for higher grades).
