DSPIC33FJ32GP101-I/SO - 16-bit DSC 32KB Flash 16 MIPS | Microchip
MPN: DSPIC33FJ32GP101-I/SO ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
DSPIC33FJ32GP101-I/SO Overview
A digital signal controller combines the computational architecture of a digital signal processor (DSP) with the peripheral set and ease of use of a microcontroller. In the product hierarchy, the dsPIC33FJ32GP101 is a 16-bit DSC, which itself belongs to the broader class of microcontrollers and embedded processors. DSCs are used where both control-loop logic and math-intensive signal processing (filters, transforms, control algorithms) must run in a single low-cost chip.
Key features include a modified Harvard 16-bit RISC core executing up to 16 MIPS, 32KB of self-programmable Flash, 2KB of RAM, and General Purpose (GP) peripherals suited to signal-chain and general embedded control work. The device also offers in-circuit serial programming (ICSP) and in-circuit debugging via tools such as the MPLAB SNAP, using two device I/O pins and the reset line.
Per the Microchip datasheet (DS70000652F family datasheet), the device provides flexible I/O with 10 mA or 6 mA pin-specific sink/source capability for standard VOH/VOL levels, up to 16 mA or 12 mA for non-standard levels, 5V-tolerant input pins, up to 20 selectable open-drain outputs and pull-ups, and three external interrupts (two of which are remappable).
Typical applications include sensor signal conditioning, general-purpose embedded control, digital filtering, low-cost motor-adjacent control logic, and portable instrumentation where a single 3.3V rail and compact 18-pin SOIC-W footprint are advantageous.
When designing with this DSC, verify the wide-body SOIC footprint (300-mil body) on your PCB, and budget the two I/O pins required for ICSP programming access during layout.
This page synthesizes distributor availability, drop-in family alternatives, and practical design notes not consolidated in the manufacturer datasheet. Pricing shown as of 2026-09-27; stock status was listed as In Production by Microchip and ships-today availability was shown by DigiKey.
Drop-in alternatives for DSPIC33FJ32GP101-I/SO — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with DSPIC33FJ32GP101-I/SO (same form factor and footprint) — differing in Package, Core Architecture, I/O Sink/Source Current, Supply Voltage, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ32GP101-E/SO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ32GP101-I/P
✅ Drop-In✓ In Stock
$3.63 / Unit
View Datasheet →DSPIC33FJ16GP101-I/SO
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ32MC101-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.05 / Unit
View Datasheet →DSPIC33FJ16MC101-I/SO
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.03 / Unit
View Datasheet →DSPIC33FJ32GP101-I/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F RISC (modified Harvard) |
| CPU Speed | 16 MIPS |
| Program Memory Size | 32 KB Flash |
| RAM Size | 2 KB |
| Supply Voltage | 3.3 V |
| Operating Temperature | -40C to +85C (industrial, I suffix) |
| Package | 18-pin SOIC Wide (SO) |
| Mounting Type | Surface Mount |
| Packaging | Tube |
| I/O Sink/Source Current | 10 mA or 6 mA pin-specific (standard VOH/VOL), up to 16 mA or 12 mA (non-standard) |
| 5V Tolerant I/O | Yes |
| Open-Drain Outputs / Pull-ups | Up to 20 selectable |
| External Interrupts | 3 (two remappable) |
| In-Circuit Serial Programming | Yes (ICSP, 2 I/O pins + reset line) |
| In-Circuit Debugging | Yes (MPLAB SNAP compatible) |
| Product Status | In Production (per Microchip) |
| Series | dsPIC33FJ32GP101 (General Purpose) |
DSPIC33FJ32GP101-I/SO 18-pin soic wide (so) Pin Configuration Guide
Pin configuration for DSPIC33FJ32GP101-I/SO (18-pin soic wide (so) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for DSPIC33FJ32GP101-I/SO.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ32GP101-I/SO is suitable for 6 applications: Sensor Signal Conditioning, General-Purpose Embedded Control, Digital Filtering and DSP Routines, Portable and Battery-Powered Instrumentation, Industrial Communication Nodes, Low-Cost Motor-Adjacent Control Logic.
Sensor Signal Conditioning
The DSPIC33FJ32GP101-I/SO fits sensor conditioning front-ends because its 16-bit DSP core executes digital filters (IIR/FIR, notch, averaging) at up to 16 MIPS while its GP peripherals handle ADC sequencing and digital I/O. The 5V-tolerant inputs allow direct connection to legacy 5V sensor outputs on designated pins, and up to 20 selectable open-drain/pull-up configurations ease switch-matrix interfacing. Used as the processing element between an external or internal ADC and a system bus, it provides filtering and scaling with deterministic latency. Because it runs from a single 3.3V rail in an 18-pin SOIC-W package, it slots into compact sensing nodes with minimal board area and low bill-of-materials overhead.
Recommended
General-Purpose Embedded Control
As a General Purpose (GP) family DSC, the DSPIC33FJ32GP101-I/SO is a strong fit for embedded control boards needing more math throughput than a PIC18 but not a full DSP. Its 32KB Flash holds complex control state machines plus a communication stack, and 2KB RAM supports modest buffering. Three external interrupts (two remappable) enable responsive event handling, and remappable I/O lets the designer place peripherals on convenient pins, simplifying routing on dense two-layer boards. The industrial -40C to +85C rating suits factory-floor equipment. In-circuit serial programming via MPLAB SNAP allows firmware updates on assembled boards without desoldering, reducing field-service cost.
Recommended
Digital Filtering and DSP Routines
The 16-bit dsPIC33F core includes DSP-enhanced instructions that make the DSPIC33FJ32GP101-I/SO efficient for real-time FIR and IIR filtering, windowing, and PID math at 16 MIPS - throughput that 8-bit MCUs cannot reach without external help. With 32KB of self-programmable Flash, coefficient tables and multiple filter stages fit in program memory, while 2KB RAM handles working buffers for modest sample blocks. Typical usage places the DSC after an ADC stage, running 1 kHz to tens-of-kHz control or filtering loops with deterministic execution. Designers should profile stack and buffer usage against the 2KB RAM budget early, since deep interrupt nesting consumes headroom quickly.
Recommended
Portable and Battery-Powered Instrumentation
For handheld meters and portable instruments, the DSPIC33FJ32GP101-I/SO offers an attractive size and power profile: a single 3.3V supply and an 18-pin wide-SOIC footprint keep the controller section compact, while 16 MIPS of 16-bit processing performs measurement math, calibration, and display driving in one chip. The industrial temperature rating of -40C to +85C also covers outdoor and automotive-cabin exposure. Firmware is developed in MPLAB X with XC16, and the ICSP two-pin-plus-reset interface supports reprogramming through a small test-point header on portable PCBs. Pair it with a low-quiescent-current LDO and the display and keypad logic it directly drives via remappable I/O.
Recommended
Industrial Communication Nodes
In factory networks, the DSPIC33FJ32GP101-I/SO works as a protocol-handling node: the 16-bit core at 16 MIPS comfortably runs serial framing, checksums, and command parsing, while 5V-tolerant inputs and selectable pull-ups interface with legacy 24V-adjacent logic through proper conditioning. Three external interrupts allow fast response to handshake lines, and remappable peripheral pins let UART/SPI/I2C functions land where the connector routing requires. The -40C to +85C industrial rating matches panel and cabinet environments. Because the part is In Production per Microchip and stocked at multiple distributors (Octopart reports 10 sources), long-term availability supports multi-year industrial product lifecycles.
Recommended
Low-Cost Motor-Adjacent Control Logic
While the GP variant is not Microchip's dedicated motor-control part, the DSPIC33FJ32GP101-I/SO suits motor-adjacent supervisory logic: sequencing contactors, reading encoders or limit switches via the three external interrupts, computing speed with DSP instructions, and driving status indicators. When a dedicated PWM-heavy drive is required, the pin-compatible DSPIC33FJ32MC101-I/SO in the same 18-SOIC-W footprint lets teams migrate with a PCB-identical redesign and recompiled firmware. I/O pins handle 10 mA or 6 mA sink/source (up to 16 mA or 12 mA at non-standard levels), enough to drive optocoupler and gate-driver inputs directly, reducing external component count in compact drive interface boards.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ32GP101-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ32GP101-E/SO | DSPIC33FJ16GP101-I/SO | DSPIC33FJ32MC101-I/SO |
|---|---|---|---|---|
| Package | 18-SOIC Wide | 18-SOIC Wide - same | 18-SOIC Wide - same | 18-SOIC Wide - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| CPU Speed | 16 MIPS | 16 MIPS | 16 MIPS | 16 MIPS |
| Program Memory | 32 KB Flash | 32 KB Flash | 16 KB Flash | 32 KB Flash |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Operating Temperature | -40C to +85C | -40C to +125C (extended) | -40C to +85C | -40C to +85C |
| Peripheral Family | General Purpose (GP) | General Purpose (GP) | General Purpose (GP) | Motor Control (MC) |
Key Differentiators
- Extended-temperature drop-in available (vs DSPIC33FJ32GP101-I/SO (this part))
- Double the Flash of the low-cost sibling (vs DSPIC33FJ16GP101-I/SO)
- General Purpose peripheral set vs Motor Control set (vs DSPIC33FJ32MC101-I/SO)
Design Notes
Reserve ICSP access during layout. Per Microchip, in-circuit debugging and In-Circuit Serial Programming use two device I/O pins plus the reset line via an 8-pin SIL connector on tools like MPLAB SNAP. Place a small 5- or 6-pin header (or 100-mil test pads) connected to MCLR, PGD, PGC, VDD, and GND. If those I/O pins drive other circuitry, add series resistors (about 470 ohm) to isolate loading during programming. On the 18-SOIC-W (300-mil body), keep traces to the header short to preserve signal integrity on PGD/PGC.
The device operates from a 3.3V supply. Decouple each VDD pin with 0.1uF ceramic capacitors placed within a few millimeters of the pins, plus a bulk 4.7uF-10uF capacitor near the IC. Although selected input pins are 5V-tolerant per the family datasheet, the supply itself must not exceed the 3.3V operating range - never connect a 5V rail to VDD. If interfacing to 24V industrial logic, use optocouplers or resistor dividers on non-tolerant pins. Verify which specific pins are 5V-tolerant in the DS70000652F pin tables before applying 5V signals.
Confirm the package suffix before ordering: /SO is the 18-pin wide SOIC (surface mount, tube packing) while /P is the through-hole 18-pin PDIP - they share silicon but not a footprint, so mixing them breaks reflow assembly. Also distinguish the -I (industrial, -40C to +85C) and -E (extended) temperature grades. Estimated: budget RAM early - with 2KB total, deep call stacks plus interrupt nesting plus comm buffers can exhaust memory; use the XC16 compiler memory usage report at each firmware milestone to catch overruns before hardware freeze.
Compliance Information
Compliance data was not explicitly stated in the retrieved web data for this exact MPN. Verify on the Microchip product page or via the distributor's certificate of conformance before use in regulated products.
