PIC32MX270F512L-V/PF - 512KB Flash 40MHz USB MCU | Microchip
Référence : PIC32MX270F512L-V/PF ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $7.45 | $7,45 |
| 10 | $6.89 | $68,90 |
| 100 | $6.21 | $621,00 |
| 500 | $5.65 | $2 825,00 |
| 1 000 | $5.1 | $5 100,00 |
PIC32MX270F512L-V/PF Présentation
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile Flash program memory, volatile SRAM, and configurable digital and analog peripherals. The PIC32MX family uses the MIPS M4K 32-bit RISC core with a 5-stage pipeline, occupying the position 32-bit MCU -> microcontroller -> embedded processor -> semiconductor. Compared with 8-bit AVR/PIC16, the PIC32MX delivers multi-MHz 32-bit data paths and USB on-chip, which 8-bit MCUs typically cannot provide.
Key features include USB 2.0 full-speed device/host/OTG with on-chip transceiver, two I2S/SSP audio paths, 81 general-purpose I/O lines, 5 timers/counters, 3 compare/PWM modules, RTCC with calendar mode, and a CTMU (Charge Time Measurement Unit) for capacitive-touch button implementation without external analog ICs. The on-chip 1.5 KB USB endpoint RAM and dedicated DMA to USB simplify Audio Class 1.0 device designs.
Architecturally, the PIC32MX270 integrates a hardware multiplier, single-cycle MAC, prefetch module with cache-like branching optimization, and a peripheral bus running at half the system clock for low-overhead I/O. The 100-pin TQFP package exposes dedicated USB D+/D- pins, multiple ICSP pairs, and ample ADC inputs for mixed-signal designs.
Typical applications include Bluetooth audio sink/source devices using the PIC32 Bluetooth Audio Development Kit (PQAMP), USB headsets, USB MIDI controllers, capacitive-touch user interfaces via CTMU, and low-cost 32-bit general-purpose controllers. The audio-friendly I2S ports and full-speed USB make it a workhorse for prosumer audio products.
Designers should note that the PCI43701 Bluetooth Audio PIM Information Sheet (per the Microchip datasheet 50002314A) is the canonical reference design, and 100-pin TQFP compatibility between PIC32MX170/230/270 L-pin variants is verified for migration between Flash densities. Always place decoupling within 5 mm of every VDD/VSS pin.
This page synthesizes distributor pricing, drop-in alternatives across the PIC32MX family, and practical design notes not found in the manufacturer datasheet.
Alternatives de remplacement direct pour PIC32MX270F512L-V/PF — 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 PIC32MX270F512L-V/PF (même facteur de forme et même empreinte) — différant par ADC, Package, Timers, USB, Operating Temperature.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC32MX270F512L-50I/PF
✅ Remplacement direct✓ En stock
$5.2 / unité
Voir la fiche technique →PIC32MX270F512LT-V/PF
✅ Remplacement direct✓ En stock
$2.1 / unité
Voir la fiche technique →PIC32MX270F512LT-I/PF
✅ Remplacement direct✓ En stock
$5.1 / unité
Voir la fiche technique →PIC32MX270F512LT-50I/PF
✅ Remplacement direct✓ En stock
$6.32 / unité
Voir la fiche technique →PIC32MX270F512L-I/PF
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC32MX250F256L-V/PF
✅ Remplacement direct✓ En stock
$3.4 / unité
Voir la fiche technique →PIC32MX230F128L-V/PF
✅ Remplacement direct✓ En stock
$4.31 / unité
Voir la fiche technique →PIC32MX270F512L-V/PF Valeurs maximales et caractéristiques électriques
| Core Architecture | MIPS32 M4K (32-bit RISC) |
| Core Count | 1 |
| Maximum Core Frequency | 40 MHz (50 MHz for -50 speed grade) |
| Program Memory | 512 KB Flash |
| Data Memory (SRAM) | 64 KB |
| General-Purpose I/O | 81 |
| Boîtier | 100-pin TQFP (14x14 mm) |
| Type de montage | Surface Mount |
| USB Interface | USB 2.0 Full-Speed Device/Host/OTG with on-chip transceiver |
| Audio Interface | I2S / SSP (2 paths) |
| ADC | 10-bit |
| CTMU (Capacitive Touch) | Yes (on-chip) |
| RTCC (Real-Time Clock/Calendar) | Yes |
| Timers / Compare-PWM | 5 timers, 3 compare-PWM |
| Température de fonctionnement | -40C to +105C (extended industrial) |
| Supply Voltage (VDD) | 2.3 V to 3.6 V (per family datasheet) |
| Statut RoHS | Compliant |
| Lead-Free | Yes (Pb-free) |
Configuration des broches de PIC32MX270F512L-V/PF
| Broche 1 | RPB0/RF3/AN0 — Remappable GPIO / AN0 / CTMU input |
| Broche 10 | VSS — Ground reference |
| Broche 11 | VDD — Core supply 2.3-3.6 V |
| Broche 12 | RPB5/RD14/AN5 — Remappable GPIO / AN5 |
| Broche 13 | PGED3/RPB6/RD15/AN6 — ICSP data / GPIO / AN6 |
| Broche 14 | PGEC3/RPB7/RD16/AN7 — ICSP clock / GPIO / AN7 |
| Broche 15 | PGED1/RPB8/SDA1/CTED1 — ICSP data / I2C SDA / CTED |
| Broche 16 | PGEC1/RPB9/SCL1/CTED2 — ICSP clock / I2C SCL / CTED |
| Broche 17 | VDD — I/O supply 2.3-3.6 V |
| Broche 18 | AVDD — Analog supply |
| Broche 19 | AVSS — Analog ground |
| Broche 20 | AN13/C1IND/RPG6 — Analog input / Remappable GPIO |
| Broche 21 | AN14/C1INC/RPG7 — Analog input / Remappable GPIO |
| Broche 22 | AN15/C2IND/RPG8 — Analog input / Remappable GPIO |
| Broche 23 | AN16/C2INC/RPG9 — Analog input / Remappable GPIO |
| Broche 24 | VDD — I/O supply |
| Broche 25 | VSS — Ground |
| Broche 26 | OSC1/RC12 — Crystal/oscillator input |
| Broche 27 | OSC2/RC13 — Crystal/oscillator output |
| Broche 28 | SOSC1/RPC0 — Secondary oscillator / GPIO |
| Broche 29 | SOSC2/RPC1 — Secondary oscillator / GPIO |
| Broche 30 | D+/RG2 — USB D+ data |
| Broche 31 | D-/RG3 — USB D- data |
| Broche 32 | VBUS/RG5 — USB VBUS detect / GPIO |
| Broche 33 | VUSB — USB transceiver supply |
| Broche 34 | VDD — I/O supply |
| Broche 35 | VSS — Ground |
| Broche 36 | RPB10/RF4/AN8 — Remappable GPIO / AN8 |
| Broche 37 | RPB11/RF5/AN9 — Remappable GPIO / AN9 |
| Broche 38 | PGED2/RPB12/RF6/AN10 — ICSP data / AN10 |
| Broche 39 | PGEC2/RPB13/RF7/AN11 — ICSP clock / AN11 |
| Broche 40 | RPB14/RF8/AN12 — Remappable GPIO / AN12 |
| Broche 41 | RPB15/RF9/AN13 — Remappable GPIO / AN13 |
| Broche 42 | VDD — I/O supply |
| Broche 43 | VSS — Ground |
| Broche 44 | AN17/RPC2 — Analog input / GPIO |
| Broche 45 | AN18/RPC3 — Analog input / GPIO |
| Broche 46 | AN19/RPC4 — Analog input / GPIO |
| Broche 47 | AN20/RPC5 — Analog input / GPIO |
| Broche 48 | AN21/RPC6 — Analog input / GPIO |
| Broche 49 | AN22/RPC7 — Analog input / GPIO |
| Broche 50 | AN23/RPC8 — Analog input / GPIO |
| Broche 51 | VDD — I/O supply |
| Broche 52 | VSS — Ground |
| Broche 53 | RPD0/RTCC/RF0 — RTCC / Remappable GPIO |
| Broche 54 | RPD1/RF1 — Remappable GPIO |
| Broche 55 | RPD2/RF2 — Remappable GPIO |
| Broche 56 | RPD3/OC3/RFD0 — Remappable GPIO / OC3 |
| Broche 57 | RPD4/OC4/RFD1 — Remappable GPIO / OC4 |
| Broche 58 | RPD5/OC5/RFD2 — Remappable GPIO / OC5 |
| Broche 59 | RPD6/RFD3 — Remappable GPIO |
| Broche 60 | RPD7/RFD4 — Remappable GPIO |
| Broche 61 | RPD8/RTCC2/RFD5 — Remappable GPIO / RTCC2 |
| Broche 62 | RPD9/RFD6 — Remappable GPIO |
| Broche 63 | RPD10/RFD7 — Remappable GPIO |
| Broche 64 | RPD11/RFD8 — Remappable GPIO |
| Broche 65 | RPD12/RFD9 — Remappable GPIO |
| Broche 66 | RPD13/RFD10 — Remappable GPIO |
| Broche 67 | RPD14/RFD11 — Remappable GPIO |
| Broche 68 | RPD15/RFD12 — Remappable GPIO |
| Broche 69 | VDD — I/O supply |
| Broche 70 | VSS — Ground |
| Broche 71 | RPE0/PMD0/SDA2 — PMP data / I2C SDA2 |
| Broche 72 | RPE1/PMD1/SCL2 — PMP data / I2C SCL2 |
| Broche 73 | RPE2/PMD2 — PMP data |
| Broche 74 | RPE3/PMD3 — PMP data |
| Broche 75 | RPE4/PMD4 — PMP data |
| Broche 76 | RPE5/PMD5 — PMP data |
| Broche 77 | RPE6/PMD6 — PMP data |
| Broche 78 | RPE7/PMD7 — PMP data |
| Broche 79 | RPE8/PMA0 — PMP address |
| Broche 80 | RPE9/PMA1 — PMP address |
| Broche 81 | RPE10/PMA2 — PMP address |
| Broche 82 | RPE11/PMA3 — PMP address |
| Broche 83 | RPE12/PMA4 — PMP address |
| Broche 84 | RPE13/PMA5 — PMP address |
| Broche 85 | RPE14/PMA6 — PMP address |
| Broche 86 | RPE15/PMA7 — PMP address |
| Broche 87 | RPF0/PMRD — PMP read strobe |
| Broche 88 | RPF1/PMWR — PMP write strobe |
| Broche 89 | RPF2/PMA8 — PMP address |
| Broche 90 | RPF3/PMA9 — PMP address |
| Broche 91 | RPF4/PMA10 — PMP address |
| Broche 92 | RPF5/PMA11 — PMP address |
| Broche 93 | RPF6/PMA12 — PMP address |
| Broche 94 | RPF7/PMA13 — PMP address |
| Broche 95 | RPF8/PMA14 — PMP address |
| Broche 96 | RPF9/PMA15 — PMP address |
| Broche 97 | RPF10/U6TX/U3RTS — UART6 TX / GPIO |
| Broche 98 | RPF11/U6RX/U3CTS — UART6 RX / GPIO |
| Broche 99 | RPG0/U5TX/PMCS1 — UART5 TX / PMP CS1 |
| Broche 100 | RPG1/U5RX/PMCS2 — UART5 RX / PMP CS2 |
Applications typiques
PIC32MX270F512L-V/PF convient pour 6 applications: Bluetooth Audio Sink/Source Headset, USB MIDI Controller, Capacitive-Touch User Interface Panel, Industrial USB Host Data Logger, USB Audio Class 1.0 Headset, Low-Cost 32-Bit General-Purpose Controller.
Bluetooth Audio Sink/Source Headset
The PIC32MX270F512L-V/PF targets Bluetooth audio sink and source headsets via the Microchip PIC32 Bluetooth Audio Development Kit (document 50002314A). Its two I2S ports handle external codec I2S data while USB OTG enumerates as a USB audio class 1.0 device, with 512 KB Flash supporting full Bluetooth-audio firmware and 64 KB SRAM holding USB + audio sample buffers.
Recommandé
USB MIDI Controller
USB MIDI controllers using the PIC32MX270F512L-V/PF benefit from on-chip USB device and 81 GPIO for button-matrix scanning and rotary encoders. The 512 KB Flash stores USB-MIDI class descriptors plus user-lighting profiles; the 10-bit ADC reads potentiometers; the 5 timers drive PWM-based LED drivers. Pin-compatibility with PIC32MX170F512L-V/PF lets cost-down designs migrate easily.
Recommandé
Capacitive-Touch User Interface Panel
The PIC32MX270F512L-V/PF integrates a CTMU (Charge Time Measurement Unit) for capacitive-touch detection without external analog ICs, supporting up to 30+ touch channels via the 81 GPIO matrix. The 100-pin TQFP exposes enough pins for both capacitive touch and a TFT/LCD parallel interface, while 64 KB SRAM buffers gesture-recognition state machines.
Recommandé
Industrial USB Host Data Logger
The PIC32MX270F512L-V/PF supports USB host mode for USB mass-storage read/write in industrial data loggers, with 512 KB Flash holding FAT32 stacks and 64 KB SRAM acting as a sector cache. The RTCC timestamps cassette to file-headers. Industrial -40C to +105C extended grade (V suffix) handles factory-floor thermal stress.
Recommandé
USB Audio Class 1.0 Headset
USB Audio Class 1.0 headsets use the PIC32MX270F512L-V/PF as the USB controller streaming 24-bit/s 48 kHz I2S to a DAC, leveraging the integrated USB full-speed with isochronous endpoint and two I2S/SSP ports. The 512 KB Flash fits USB-AudioClass 1.0 descriptors + DSP volume curves, while 64 KB SRAM holds audio sample buffers without stalls.
Recommandé
Low-Cost 32-Bit General-Purpose Controller
General-purpose 32-bit controllers replace 8-bit AVR/PIC16 designs using the PIC32MX270F512L-V/PF, gaining multi-MHz MIPS data paths while keeping Microchip's MPLAB X toolchain. The 100-pin TQFP footprint offers 81 GPIO - ideal for retrofitting older PIC18 designs. The 10-bit ADC and 5 timers cover most mixed-signal embedded products in this role.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC32MX270F512L-V/PF — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC32MX270F512L-50I/PF | PIC32MX270F512LT-V/PF | PIC32MX270F512L-I/PF | PIC32MX250F256L-V/PF | PIC32MX230F128L-V/PF |
|---|---|---|---|---|---|---|
| Package | 100-TQFP (14x14 mm) | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same | 100-TQFP (14x14 mm) - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Program Flash | 512 KB | 512 KB - same | 512 KB - same | 512 KB - same | 256 KB (-50%) | 128 KB (-75%) |
| SRAM | 64 KB | 64 KB - same | 64 KB - same | 64 KB - same | 32 KB (-50%) | 16 KB (-75%) |
| Maximum Core Frequency | 40 MHz (V grade) | 50 MHz (-50 grade) | 40 MHz - same | 40 MHz - same | 40 MHz - same | 40 MHz - same |
| USB Support | USB 2.0 FS OTG | USB 2.0 FS OTG - same | USB 2.0 FS OTG - same | USB 2.0 FS OTG - same | USB 2.0 FS OTG - same | USB 2.0 FS OTG - same |
| Operating Temperature | -40C to +105C (V extended) | -40C to +85C (I industrial) | -40C to +105C - same | -40C to +85C (I industrial) | -40C to +105C - same | -40C to +105C - same |
| Pin Count (per unit) | 100 | 100 - same | 100 - same | 100 - same | 100 - same | 100 - same |
Principaux différenciateurs
- USB OTG host mode on a 100-pin 40 MHz MCU (vs PIC32MX170F512L-V/PF)
- Two simultaneous I2S audio paths (vs PIC32MX250F256L-V/PF)
- CTMU on-chip capacitive-touch without external analog IC (vs Generic PIC32MX250F128B (no CTMU))
Notes de conception
Decouple every VDD/VSS pair within 5 mm of the pin. Place one 0.1 uF ceramic plus one bulk capacitor (4.7-10 uF ceramic) per the four active pairs (pin 11, 17, 24, 34 etc). VUSB (pin 33) needs its own 0.1 uF + 4.7 uF per the USB transceiver supply. AVDD (pin 18) and AVSS (pin 19) require separate filtering for the 10-bit ADC noise target.
Estimated: At 40 MHz MIPS M4K core at 3.3 V the PIC32MX270F512L-V/PF draws roughly 30-45 mA active, dissipating 0.10-0.15 W. The 100-pin TQFP has theta_JA around 40-50 C/W per the Microchip thermal documentation, yielding a 5-8 C junction temperature rise at room ambient. For sealed enclosures above 80 C ambient, derate CPU duty cycle.
Use a 4-layer PCB with one solid ground plane for the 100-pin TQFP. Route the USB D+/D- pair (pins 30-31) as a 90-ohm differential with length matching within 150 mil. Keep the 12 MHz primary oscillator traces (pins 26-27) short and isolated from switching signals. Place the CTMU guarded ring around any capacitive-touch traces.
Do not leave the VBUS pin (pin 32) floating when USB is unused - tie to 3.3 V through 10 kohm. The RTCC requires a 32.768 kHz crystal on SOSC1/SOSC2 (pins 28-29). Brown-out Reset must be enabled in the DEVCFG configuration bits for reliable firmware boot. The CTMU needs a 1 nF 1% sample capacitor for required capacitive touch
Informations de conformité
RoHS compliant per Microchip product page. AEC-Q100 not applicable (consumer/industrial grade). Halogen-free status not stated on product page - set unknown. Conflict-minerals compliance per Microchip policy.
