DSPIC33FJ32MC101-I/SS - 16-bit DSC 32MHz 32KB Flash | Microchip
Référence : DSPIC33FJ32MC101-I/SS ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $2.63 | $2,63 |
| 10 | $2.42 | $24,20 |
| 100 | $2.1 | $210,00 |
| 500 | $1.85 | $925,00 |
| 1 000 | $1.68 | $1 680,00 |
DSPIC33FJ32MC101-I/SS Présentation
A digital signal controller combines the computational power of a digital signal processor with the peripheral integration and ease of use of a microcontroller, sitting in the hierarchy between a plain MCU and a full DSP. DSCs execute DSP-class instructions such as multiply-accumulate while retaining typical microcontroller peripherals like UART, SPI and I2C, making them the preferred choice for closed-loop control systems.
Key features of the DSPIC33FJ32MC101 family include a motor control PWM (MCPWM) module, a 6-channel 10-bit ADC, the Charge Time Measurement Unit (CTMU) for capacitive touch and time measurement, and Peripheral Pin Select (PPS) for flexible remapping of digital peripherals onto RPn pins. The internal multiple-bus architecture separates program and data paths, allowing simultaneous instruction fetch and data access that sustains the 16 MIPS throughput without bottlenecks.
Technically, the device is fabricated in CMOS and supports low-power modes including Sleep and Idle, which drop current consumption dramatically for battery-powered or always-on products. Flash program memory is rated for repeated reprogramming, supporting field firmware updates. The -I temperature grade covers -40C to +85C for industrial environments, and the -E grade extends to +125C for harsher applications.
Typical applications include brushless DC and PMSM motor control, digital power supplies (power factor correction, LLC converters), sensor signal conditioning with on-chip CTMU-based capacitive touch, and general embedded control where DSP-class math such as filters or transforms is required at very low cost.
Designers should note that the 3.0V to 3.6V supply domain requires a 3.3V rail, and the internal core regulator uses an external VCAP capacitor on the dedicated pin, which must not be omitted.
This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not found in the manufacturer datasheet alone.
Alternatives de remplacement direct pour DSPIC33FJ32MC101-I/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 DSPIC33FJ32MC101-I/SS (même facteur de forme et même empreinte) — différant par Operating Temperature, Package, Core Architecture, DSP Engine, ADC.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
DSPIC33FJ32MC101-E/SS
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
DSPIC33FJ12MC201-I/SS
✅ Remplacement direct✓ En stock
$2.46 / unité
Voir la fiche technique →DSPIC33FJ12MC202T-I/SS
✅ Remplacement direct✓ En stock
$2.32 / unité
Voir la fiche technique →DSPIC33FJ16GP102T-I/SS
✅ Remplacement direct✓ En stock
$1.95 / unité
Voir la fiche technique →DSPIC33FJ16GP101-E/SS
✅ Remplacement direct✓ En stock
$2.3 / unité
Voir la fiche technique →DSPIC33FJ32MC101-I/SS Valeurs maximales et caractéristiques électriques
| Core Architecture | 16-bit dsPIC33F |
| Max CPU Speed | 32 MHz |
| Instruction Rate | 16 MIPS |
| Program Memory | 32 KB Flash (11K x 24) |
| RAM | 2 KB SRAM |
| ADC Resolution | 10-bit, 6 channels |
| Motor Control PWM | MCPWM module |
| Communication Interfaces | I2C, SPI, UART/USART |
| CTMU | Yes (Charge Time Measurement Unit) |
| Peripheral Pin Select (PPS) | Yes (RPn remappable pins) |
| Tension d'alimentation | 3.0 V to 3.6 V |
| Température de fonctionnement | -40C to +85C (I grade) |
| Boîtier | 20-SSOP, 0.65 mm pitch |
| Type de montage | Surface Mount |
| Process Technology | CMOS |
| Low Power Modes | Sleep, Idle |
| Statut RoHS | Compliant |
Configuration des broches de DSPIC33FJ32MC101-I/SS
| Broche 1 | MCLR — Master Clear reset input / programming voltage |
| Broche 2 | AN0/VREF+/CN2/RB0 — Analog input 0 / positive ADC reference / change notification / port B |
| Broche 3 | AN1/VREF-/CN3/RB1 — Analog input 1 / negative ADC reference / change notification / port B |
| Broche 4 | AN2/SS1/CN4/RB2 — Analog input 2 / SPI slave select / change notification / port B |
| Broche 5 | AN3/INDX/CN5/RB3 — Analog input 3 / QEI index / change notification / port B |
| Broche 6 | AN4/UPDN/QEA/CN6/RB4 — Analog input 4 / QEI direction & phase A / change notification / port B |
| Broche 7 | VDD — Power supply (3.0V to 3.6V) |
| Broche 8 | VSS — Ground reference |
| Broche 9 | OSC1/CLKI/CN7/RA2 — Crystal oscillator input / external clock input / change notification |
| Broche 10 | OSC2/CLKO/RC15 — Crystal oscillator output / clock output |
| Broche 11 | RP0/SDA1/CN1/RB5 — Remappable peripheral pin 0 / I2C data / change notification / port B |
| Broche 12 | RP1/SCL1/CN0 — Remappable peripheral pin 1 / I2C clock / change notification |
| Broche 13 | RP2/EMUC2/PGC2 — Remappable peripheral pin 2 / emulation clock / programming clock |
| Broche 14 | RP3/EMUD2/PGD2 — Remappable peripheral pin 3 / emulation data / programming data |
| Broche 15 | RP4 — Remappable peripheral pin 4 |
| Broche 16 | RP5 — Remappable peripheral pin 5 |
| Broche 17 | VSS — Ground reference |
| Broche 18 | AVSS — Analog ground for ADC |
| Broche 19 | AVDD — Analog power supply for ADC |
| Broche 20 | VCAP/VDDCORE — External core regulator capacitor connection (per datasheet) |
Applications typiques
DSPIC33FJ32MC101-I/SS convient pour 6 applications: BLDC / PMSM Motor Control, Digital Power Supplies, Capacitive Touch Interfaces, Sensor Signal Conditioning and Data Acquisition, Embedded Communication Nodes, Consumer Appliance Control Boards.
BLDC / PMSM Motor Control
The DSPIC33FJ32MC101-I/SS is purpose-built for brushless DC and permanent-magnet synchronous motor control. Its dedicated MCPWM module generates complementary PWM pairs with hardware dead-time insertion, eliminating software timing risk in half-bridge drives, while the 6-channel 10-bit ADC can be triggered synchronously with the PWM carrier to sample phase currents at the low-ripple instant for field-oriented control loops. The 16 MIPS core sustains proportional-integral current loop execution at typical 10-20 kHz control rates with headroom for speed and position loops. Because the whole control solution fits in 32 KB Flash, cost-sensitive consumer and industrial drives can implement sensorless observers or hall-based commutation in a single 20-pin SSOP. Recommended pairing: gate drivers such as the MCP802x family and a 3.3V LDO complete a minimal drive stage.
Recommandé
Digital Power Supplies
In switch-mode power conversion - power factor correction, LLC half-bridges, or synchronous buck converters - the DSPIC33FJ32MC101-I/SS replaces analog control ICs with a programmable loop. The 16 MIPS dsPIC33F core executes compensator math at switching frequencies commonly used in offline and DC-DC designs, while the ADC samples output voltage and current synchronized to the PWM period for minimal conversion delay. The remappable RPn pins let the designer assign PWM outputs, fault inputs, and UART telemetry to optimal PCB locations, simplifying layout of the compact 20-SSOP footprint. Sleep and Idle modes support standby-power compliance targets. Because control coefficients live in firmware, one PCB supports multiple output-voltage variants by reflashing the same DSPIC33FJ32MC101-I/SS, reducing SKU proliferation in power-product families.
Recommandé
Capacitive Touch Interfaces
The integrated Charge Time Measurement Unit (CTMU) makes the DSPIC33FJ32MC101-I/SS a low-cost capacitive touch controller without external touch ICs. The CTMU is a precision constant-current source and time measurement peripheral that charges sense pads and measures charge time; firmware applies baseline tracking and threshold detection to register touches on keys, sliders, or proximity sensors routed to the AN0-AN4 analog inputs. The 16 MIPS core leaves ample cycle budget for debouncing, multi-key state machines, and communication back to a host over UART, SPI, or I2C on the remappable RPn pins. In appliances, control panels, and IP-rated industrial keypads, this removes one component from the bill of materials while the -40C to +85C industrial grade and 20-SSOP footprint fit existing PCB land patterns directly.
Recommandé
Sensor Signal Conditioning and Data Acquisition
The 6-channel 10-bit ADC with up to 500 ksps conversion capability turns the DSPIC33FJ32MC101-I/SS into a compact acquisition node for analog sensors - pressure bridges, thermistors, potentiometers, and current shunts. Firmware DSP instructions (multiply-accumulate, barrel shift, modulo addressing) implement digital filtering such as moving-average, IIR, or simple FFT-based analysis directly on the 16-bit core, offloading the host controller in distributed systems. Converted data streams out over the hardware UART, SPI, or I2C peripheral mapped by PPS to any convenient RPn pin. With 2 KB SRAM there is room for buffering burst captures, and the 3.3V domain matches most modern sensor outputs directly. The internal oscillator option allows fully clockless BOM designs where a crystal is unnecessary, trimming cost in high-volume sensor nodes.
Recommandé
Embedded Communication Nodes
With hardware I2C, SPI, and UART/USART peripherals plus Peripheral Pin Select, the DSPIC33FJ32MC101-I/SS serves as a protocol converter or field-bus node in industrial equipment. Typical roles include translating Modbus-RTU frames on UART to SPI transactions for display or memory devices, bridging an RS-485 process bus to local I2C sensors, or acting as a smart I/O expander with DSP-side filtering of incoming signals. The remappable RPn architecture means PCB routing constraints no longer dictate peripheral choice - any digital function can land on any of the RP pins, a significant layout advantage in dense SSOP-20 boards. Industrial -40C to +85C rating, watchdog timer, and low-power Sleep mode support always-on installations such as HVAC controllers, metering front ends, and factory sensor drops.
Recommandé
Consumer Appliance Control Boards
Ultra-low cost combined with DSP-grade control makes the DSPIC33FJ32MC101-I/SS attractive for appliance electronics: fan motors in air conditioners, pumps in dishwashers, and induction-heating control all benefit from the MCPWM module and 10-bit ADC in a sub-$3 controller. The 20-pin SSOP conserves PCB area in crowded control boards, and the CTMU supports capacitive buttons that replace mechanical switches for sealed, wipe-clean panels. Flash program memory supports field firmware updates through a small boot loader, letting manufacturers add features post-production. Sleep current behavior supports energy-star standby targets, while the wide -40C to +85C industrial rating exceeds typical consumer requirements, adding margin for hot enclosure environments near motors and heating elements where consumer-grade parts would be marginal.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour DSPIC33FJ32MC101-I/SS — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | DSPIC33FJ32MC101-E/SS | DSPIC33FJ12MC201-I/SS | DSPIC33FJ12MC202T-I/SS | DSPIC33FJ16GP102T-I/SS | DSPIC33FJ16GP101-E/SS |
|---|---|---|---|---|---|---|
| Package | 20-SSOP (0.65 mm) | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 32 KB | 32 KB | 12 KB | 12 KB | 16 KB | 16 KB |
| Max CPU Speed | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS | 32 MHz / 16 MIPS |
| Operating Temperature | -40C to +85C | -40C to +125C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C |
| Family Type | MC (motor control) | MC (motor control) | MC (motor control) | MC (motor control) | GP (general purpose) | GP (general purpose) |
Principaux différenciateurs
- Largest Flash in the 20-SSOP family (vs DSPIC33FJ12MC201-I/SS)
- Dedicated motor-control PWM (MC family) (vs DSPIC33FJ16GP102T-I/SS)
- Extended temperature option on identical die (vs DSPIC33FJ32MC101-E/SS)
Notes de conception
The on-chip core regulator requires an external low-ESR capacitor on the VCAP/VDDCORE pin (pin 20) per the dsPIC33FJ family datasheet - typically a 10uF ceramic with low ESR. Omitting it or using a high-ESR part causes brown-out-like resets or failure to run. Power VDD (3.0-3.6V) with 0.1uF decoupling at each VDD/VSS pair, plus 4.7-10uF bulk. Estimated: at 16 MIPS the device draws tens of mA; a 100 mA-class LDO such as the MCP1790 provides adequate margin.
Separate the analog and digital ground returns: connect AVSS to a quiet ground node and filter AVDD with an RC network (e.g., 10 ohm + 1uF) when ADC accuracy matters in motor current sensing. Route MCPWM gate-driver outputs away from the oscillator pins (9-10) to prevent jitter. The datasheet notes the exposed metal pad on the SSOP bottom is not connected to any pin and recommends tying it to VSS externally for improved grounding and mechanical stability.
Pin 1 is MCLR - always add a 10k pull-up to VDD and a 0.1uF to ground, and bring MCLR to the programming header, or in-circuit programming with ICSP will fail. Peripheral Pin Select means default pin functions may not be active after reset; firmware must explicitly map UART/SPI/PWM to RPn pins. Do not exceed the 3.6V absolute supply limit on any pin, and remember RB port pins default to analog mode - clear ANSEL-type bits in firmware before using them as digital inputs.
Informations de conformité
RoHS-compliant and lead-free per Microchip product page and distributor listings. REACH, halogen-free and conflict-minerals status not stated in the provided data.
