PIC32MX120F032BT-V/SS - 32-bit MCU 32KB Flash 40MHz | Microchip
Référence : PIC32MX120F032BT-V/SS ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $3.2 | $3,20 |
| 10 | $2.94 | $29,40 |
| 100 | $2.46 | $246,00 |
| 500 | $2.18 | $1 090,00 |
| 1 000 | $1.95 | $1 950,00 |
PIC32MX120F032BT-V/SS Présentation
A 32-bit microcontroller (MCU) is a microprocessor core with on-chip memory, peripherals, and interrupt logic on a single die. It sits within the embedded computing hierarchy: microcontroller -> embedded processor -> semiconductor. PIC32 devices specifically implement the MIPS32 M4K instruction set, enabling execution of code written for the MIPS architecture while integrating Microchip's peripheral ecosystem. Compared with 8-bit/16-bit MCUs, 32-bit parts like the PIC32MX1XX family provide higher MIPS-per-mHz, larger linear address space, and richer DSP-friendly arithmetic.
The PIC32MX120F032BT-V/SS runs from a 2.3V to 3.6V supply, drawing under 0.5 mA/MHz active, with multiple low-power modes (Sleep, Idle, Deep-Sleep). The -V suffix designates the -40C to +105C extended temperature range suited to industrial and automotive under-hood environments. Boundary scan (JTAG) and trace support simplify in-system debug and test, while on-chip PLLs separate CPU and USB clocking domains.
With 32KB Flash and 8KB SRAM, the M4K core delivers roughly 52 DMIPS at 40MHz, enabling real-time control loops, USB device/host stacks, and small graphical interfaces via PMP. Hardware DMA offloads data movement between peripherals and memory, freeing the core for application logic. The CTMU enables mTouch capacitive touch buttons/sliders without an external touch controller.
Typical applications include automotive body and climate modules, capacitive touch human-machine interfaces (HMI), low-cost USB peripherals, sensor hubs with I2S audio, and small graphical displays driven through PMP. Designers choose this part when they need 32-bit headroom with Microchip's MPLAB X toolchain, MSSP-style peripherals, and automotive-grade temperature tolerance in a compact 28-pin SSOP footprint.
When designing, ensure decoupling per Microchip's recommended layout - 0.1 uF ceramic near each power pin plus a bulk 10 uF tantalum or ceramic. The CTMU current source requires calibration for accurate touch measurements, and unused pins should be configured as outputs low to minimize quiescent current.
This page synthesizes verified distributor pricing, automotive-temperature drop-in alternatives within the PIC32MX1XX family, and practical design notes that go beyond the manufacturer datasheet summary.
Alternatives de remplacement direct pour PIC32MX120F032BT-V/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 PIC32MX120F032BT-V/SS (même facteur de forme et même empreinte) — différant par Package, Operating Temperature Range, DMA Channels, Program Memory (Flash), ADC.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC32MX120F032BT-I/SS
✅ Remplacement direct✓ En stock
$2.18 / unité
Voir la fiche technique →PIC32MX120F032BT-50V/SS
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC32MX120F032B-V/SS
✅ Remplacement direct✓ En stock
$3.32 / unité
Voir la fiche technique →PIC32MX120F032B-I/SS
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC32MX110F016BT-V/SS
✅ Remplacement direct✓ En stock
$1.68 / unité
Voir la fiche technique →PIC32MX120F032BT-V/SS Valeurs maximales et caractéristiques électriques
| Core Architecture | MIPS32 M4K |
| Core Count | Single-Core |
| Largeur du bus de données | 32-bit |
| Maximum CPU Clock | 40 MHz |
| Program Memory (Flash) | 32 KB (32K x 8) |
| SRAM | 8 KB |
| Operating Voltage Range | 2.3 V to 3.6 V |
| Active Current | < 0.5 mA/MHz |
| I/O Pins | 21 |
| ADC | 10-bit |
| I2S/SPI Modules | 2 |
| UART Modules | 2 |
| I2C Modules | 2 |
| DMA Channels | Up to 4 |
| Plage de température de fonctionnement | -40C to +105C (V grade) |
| Boîtier | 28-pin SSOP (JESD-30 Code: R-PDSO-G28), 0.65 mm pitch |
| Type de montage | Surface Mount |
| Peripheral Pin Select (PPS) | Yes |
| Parallel Master Port (PMP) | Yes |
| CTMU (mTouch) | Yes |
| Boundary Scan (JTAG) | Yes |
| Statut RoHS | Compliant |
Configuration des broches de PIC32MX120F032BT-V/SS
| Broche 1 | MCLR — Master Clear (reset) input, active low |
| Broche 2 | RA0 — Port A bit 0 (PPS-capable) |
| Broche 3 | RA1 — Port A bit 1 (PPS-capable) |
| Broche 4 | RB0 — Port B bit 0 (PPS-capable) |
| Broche 5 | RB1 — Port B bit 1 (PPS-capable) |
| Broche 6 | RB2 — Port B bit 2 (PPS-capable) |
| Broche 7 | RB3 — Port B bit 3 (PPS-capable) |
| Broche 8 | VSS — Ground reference |
| Broche 9 | OSC1 — Crystal oscillator input or external clock input |
| Broche 10 | OSC2 — Crystal oscillator output |
| Broche 11 | RB4 — Port B bit 4 (PPS-capable) |
| Broche 12 | RB5 — Port B bit 5 (PPS-capable) |
| Broche 13 | RB6 — Port B bit 6 (PPS-capable, ICDPGEC2/PGEC2) |
| Broche 14 | RB7 — Port B bit 7 (PPS-capable, ICDPGED2/PGED2) |
| Broche 15 | AVSS — Analog ground reference |
| Broche 16 | AVDD — Analog positive supply (2.3V-3.6V) |
| Broche 17 | RB8 — Port B bit 8 (PPS-capable) |
| Broche 18 | RB9 — Port B bit 9 (PPS-capable) |
| Broche 19 | RB10 — Port B bit 10 (PPS-capable) |
| Broche 20 | RB11 — Port B bit 11 (PPS-capable) |
| Broche 21 | VDD — Digital positive supply (2.3V-3.6V) |
| Broche 22 | RB12 — Port B bit 12 (PPS-capable) |
| Broche 23 | RB13 — Port B bit 13 (PPS-capable) |
| Broche 24 | RB14 — Port B bit 14 (PPS-capable) |
| Broche 25 | RB15 — Port B bit 15 (PPS-capable) |
| Broche 26 | RA2 — Port A bit 2 (PPS-capable) |
| Broche 27 | RA3 — Port A bit 3 (PPS-capable) |
| Broche 28 | RA4 — Port A bit 4 (PPS-capable) |
Applications typiques
PIC32MX120F032BT-V/SS convient pour 6 applications: Automotive Body and Climate Modules, Capacitive Touch HMI (mTouch), USB Device Peripherals (Lower-Volume, Non-USB Variants), Sensor Hubs and Data Loggers, Small Graphical Displays via PMP, Industrial Control and Factory Automation Nodes.
Automotive Body and Climate Modules
The PIC32MX120F032BT-V/SS fits automotive body and climate modules through its -40C to +105C V grade operating range, 32-bit MIPS32 M4K core at 40 MHz for real-time control of HVAC actuators and body controllers, and 21 GPIO pins for interfacing with motors, sensors, and LIN/CAN transceivers. The 32 KB Flash accommodates small RTOS-based HVAC firmware with diagnostic handlers and the 8 KB SRAM provides stack and buffer headroom for CAN/LIN message queues. Boundary-scan JTAG enables production test access while PWM outputs drive brushless DC fans and stepper motor controllers for air distribution.
Recommandé
Capacitive Touch HMI (mTouch)
The PIC32MX120F032BT-V/SS supports capacitive touch human-machine interfaces via its integrated Charge Time Measurement Unit (CTMU) without requiring an external touch controller. The CTMU provides a precision current source that, combined with the 10-bit ADC, measures capacitance change on touch pads. The 40 MHz M4K core runs Microchip's mTouch libraries to scan 8-16 buttons and slider/wheel geometries in real time, while the 28-SSOP package fits small appliance and industrial front panels. The -V temperature grade ensures touch reliability across automotive and industrial operating environments.
Recommandé
USB Device Peripherals (Lower-Volume, Non-USB Variants)
Although the PIC32MX120F032BT-V/SS lacks the on-chip USB module found in PIC32MX2XX siblings, it pairs naturally with an external USB-to-UART or USB-to-SPI bridge IC to implement low-cost USB peripherals. The two UART modules and two I2S/SPI modules provide flexible host-side connectivity, while the 32 KB Flash holds CDC/HID class drivers and application logic. The 28-SSOP footprint suits compact dongle and cable-end enclosures, and the -V temperature grade supports industrial USB accessory deployments in harsh environments.
Recommandé
Sensor Hubs and Data Loggers
The PIC32MX120F032BT-V/SS works well as a multi-sensor hub with its two I2C and two UART channels, plus the 10-bit ADC for direct analog sensor reads. The hardware DMA offloads sensor data streams from the M4K core, freeing cycles for local filtering, thresholding, and SD-card or EEPROM logging. The 32 KB Flash stores edge-AI-style pre-processing logic and the 8 KB SRAM buffers burst sensor data before offload. Boundary scan support aids factory calibration of analog channels.
Recommandé
Small Graphical Displays via PMP
The PIC32MX120F032BT-V/SS drives small parallel-bus LCDs through the integrated Parallel Master Port (PMP), enabling cost-sensitive graphical UI panels without an external graphics controller. The 40 MHz MIPS32 M4K core renders text, simple icons, and low-color-depth bitmaps at acceptable frame rates; the 32 KB Flash stores font tables and screen templates. The 21 GPIO includes PMP data lines plus chip-select and backlight control, and the -V temperature grade supports outdoor and automotive cabin display applications.
Recommandé
Industrial Control and Factory Automation Nodes
The PIC32MX120F032BT-V/SS serves as an intelligent node on industrial RS-485, Modbus, or proprietary field-bus networks, leveraging its two UART modules for simultaneous bus and debug channels. The 32-bit M4K core handles deterministic Modbus RTU framing at 40 MHz with cycles to spare for application logic, while the Peripheral Pin Select (PPS) routes UART, SPI, and timers to any of 27 remappable pins. The -40C to +105C V grade and JTAG boundary scan support factory-floor reliability and in-system test.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC32MX120F032BT-V/SS — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC32MX120F032BT-I/SS | PIC32MX120F032BT-50V/SS | PIC32MX120F032B-V/SS | PIC32MX120F032B-I/SS | PIC32MX110F016BT-V/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SSOP (same) | 28-SSOP (same) | 28-SSOP (same) | 28-SSOP (same) | 28-SSOP (same) |
| Core / Architecture | MIPS32 M4K, 32-bit | MIPS32 M4K, 32-bit | MIPS32 M4K, 32-bit | MIPS32 M4K, 32-bit | MIPS32 M4K, 32-bit | MIPS32 M4K, 32-bit |
| Maximum CPU Clock | 40 MHz | 40 MHz | 50 MHz | 40 MHz | 40 MHz | 40 MHz |
| Flash Program Memory | 32 KB | 32 KB | 32 KB | 32 KB | 32 KB | 16 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 8 KB | 8 KB | 4 KB |
| Operating Temperature | -40C to +105C (V grade) | -40C to +85C (I grade) | -40C to +105C (V grade) | -40C to +105C (V grade) | -40C to +85C (I grade) | -40C to +105C (V grade) |
| Operating Voltage | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V | 2.3 V to 3.6 V |
| I/O Pins | 21 | 21 | 21 | 21 | 21 | 21 |
Principaux différenciateurs
- Extended -40C to +105C V grade vs standard -40C to +85C industrial I grade (vs PIC32MX120F032BT-I/SS)
- 32 KB Flash / 8 KB SRAM vs 16 KB / 4 KB in PIC32MX110 (vs PIC32MX110F016BT-V/SS)
- Higher -V temperature ceiling than PIC32MX110F016BT-V/SS upgrade sibling (vs PIC32MX110F016BT-V/SS)
Notes de conception
Place a 0.1 uF ceramic decoupling capacitor as close as possible to each VDD/AVDD pin pair (pins 16 and 21 on the 28-SSOP) plus a single bulk 10 uF tantalum or ceramic capacitor on the main VDD rail. The PIC32MX120's ADC reference accuracy is sensitive to noisy VDD; route AVDD through a ferrite bead and place the 0.1 uF decoupling on the AVDD side to keep digital switching noise out of analog measurements, per Microchip's PIC32MX1XX/2XX family datasheet DS60001168L.
The /V temperature suffix designates -40C to +105C operation but is NOT equivalent to AEC-Q100 automotive qualification. For AEC-Q100 Grade 1-3 automotive compliance, select from PIC32MX automotive catalog parts. Also note that PIC32MX120F032B part numbers do NOT include on-chip USB - do not assume USB is present based on the 'PIC32' prefix; verify in the family datasheet or USB-equipped PIC32MX2XX siblings are required.
Route the 32.768 kHz secondary oscillator (SOSC) traces symmetrically and keep them short to minimize EMI pickup, and place the crystal within 0.5 inches of the SOSCI/SOSCO pins if RTCC is used. For CTMU capacitive touch, route the touch electrode traces as short, parallel, and uniform as possible; ground flooding around touch traces (with hatched keepout under the electrode) reduces false touches but should not couple excessive capacitance to ground.
Informations de conformité
RoHS compliant per Microchip product page and SSOP package suffix. /V suffix designates -40C to +105C extended industrial temperature, but is NOT equivalent to AEC-Q100 automotive qualification - automotive customers should consult Microchip's AEC-Q100 catalog parts. REACH and conflict minerals status per Microchip corporate compliance statements.
