DSPIC33FJ64GP204T-I/PT - 16-bit 40 MIPS DSC, 64KB Flash | Microchip
MPN: DSPIC33FJ64GP204T-I/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.12 | $6.12 |
| 10 | $5.58 | $55.80 |
| 100 | $4.96 | $496.00 |
| 500 | $4.52 | $2,260.00 |
| 1,000 | $4.1 | $4,100.00 |
DSPIC33FJ64GP204T-I/PT Overview
A digital signal controller combines the computational power of a digital signal processor with the peripheral integration and control-oriented architecture of a microcontroller. Within the power-management hierarchy of embedded systems, the DSC sits between a general-purpose MCU and a dedicated DSP, making the dsPIC33F family a popular choice for real-time closed-loop control and digital signal processing in a single chip.
Key features of the DSPIC33FJ64GP204T-I/PT include a 16-bit modified Harvard architecture core with DSP engine (barrel shifter, 40-bit wide accumulators, single-cycle MAC), 40 MIPS maximum execution speed at 3.0V to 3.6V supply, 8-channel DMA for offloading data movement from the CPU, 7 timers, and 3 serial I/O ports. The GP (General Purpose) variant includes advanced analog peripherals and audio-capable serial interfaces suited to motor control, sensing, and audio processing.
Architecturally, the dsPIC33F core executes most instructions in a single cycle and supports DSP-class instructions such as multiply-accumulate, modulo addressing, and bit-reversed addressing for FFT algorithms. The device also integrates boundary scan (JTAG-style debug via ICSP/ICD) and 3 external interrupt sources, enabling deterministic response in control loops. Per the Microchip dsPIC33FJ64GPX04 family datasheet (436 pages, dsPIC33FJ32GP302/304 through dsPIC33FJ128GPX04), the family is designed to execute digital filter algorithms and high-speed precision digital control loops.
Typical applications include sensor signal processing, digital power conversion, motor control, audio processing, and general-purpose embedded control where DSP throughput is required without a separate DSP chip. The 44-TQFP (10x10) package offers 35 general-purpose I/O lines for peripheral expansion.
When designing with this device, verify that the 3.0V to 3.6V supply window is met and that flash erase/write endurance and the industrial temperature rating (-40C to +85C, the I suffix) match your application environment; the E-suffix variant extends to +125C for harsher conditions.
This page synthesizes distributor pricing, drop-in family alternatives, design notes, and application guidance not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSPIC33FJ64GP204T-I/PT — 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 DSPIC33FJ64GP204T-I/PT (same form factor and footprint) — differing in Core Architecture, Supply Voltage, Operating Temperature, Package, RoHS Status.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33FJ64GP204-I/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ64GP204T-E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ64GP204T-H/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC33FJ128GP204-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$4.61 / Unit
View Datasheet →DSPIC33FJ32GP204-I/PT
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$3.78 / Unit
View Datasheet →DSPIC33FJ64MC204-I/PT
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSPIC33FJ64GP204T-I/PT Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33F DSC (modified Harvard) |
| Maximum Execution Speed | 40 MIPS |
| Program Memory | 64KB (64K x 8) Flash |
| SRAM | 8KB |
| Supply Voltage | 3.0 V to 3.6 V |
| DMA Channels | 8 |
| Timers | 7 |
| Serial I/O Ports | 3 |
| External Interrupt Sources | 3 |
| Package | 44-TQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial, I suffix) |
| Core Type | CMOS, 40 MHz max clock |
| DSP Features | Barrel shifter, DSP engine, single-cycle MAC |
| Debug / Scan | Boundary scan, ICSP/ICD programming |
| RoHS Status | ROHS3 Compliant |
| Packaging Modifier | T = Tape and Reel |
DSPIC33FJ64GP204T-I/PT 44-tqfp (10x10 mm) Pin Configuration Guide
Pin configuration for DSPIC33FJ64GP204T-I/PT (44-tqfp (10x10 mm) 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 DSPIC33FJ64GP204T-I/PT.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33FJ64GP204T-I/PT is suitable for 6 applications: Digital Power Conversion, Sensor Signal Processing, Audio Processing, Industrial Control and Automation, Embedded Control Retrofits and Legacy Maintenance, Portable and Battery-Powered Instruments.
Digital Power Conversion
The DSPIC33FJ64GP204T-I/PT suits digital power supplies, PFC stages, and DC-DC converters that demand deterministic high-speed control loops. Its 40 MIPS core executes proportional-integral and predictive control loops at switching frequencies well into the hundreds of kilohertz, while the DSP engine's single-cycle MAC accelerates filter computations on sampled current and voltage feedback. The 8 DMA channels move ADC results to RAM without CPU intervention, preserving loop timing headroom. Placed as the sole supervisory controller, it replaces analog control circuitry and adds programmability, fault logging, and communication. Designers should budget the 3.0V to 3.6V supply from a small auxiliary regulator and verify PWM dead-time resolution against datasheet timing tables.
Recommended
Sensor Signal Processing
In sensor front-end systems - load cells, pressure transducers, microphones, and industrial probes - the DSPIC33FJ64GP204T-I/PT combines analog acquisition with onboard DSP math in one 44-TQFP chip. The 40 MIPS core applies FIR and IIR filtering, baseline correction, and RMS computation to raw samples, while 8 DMA channels stream conversion results continuously into the 8KB SRAM. This eliminates a separate DSP or FPGA that would otherwise be required for real-time filtering. The 3 external interrupt sources enable event-triggered sampling, and the 3 serial ports forward processed results to a host. The industrial -40C to +85C rating supports deployment on factory floors and outdoor instrumentation enclosures.
Recommended
Audio Processing
The GP (General Purpose) variant of the dsPIC33F family includes audio-capable serial interfaces, making the DSPIC33FJ64GP204T-I/PT a fit for effects units, active crossovers, voice-band codecs, and analysis tools. At 40 MIPS, the core executes biquad filter chains, FFT-based spectrum analysis, and sample-rate conversion in real time, with the barrel shifter and modulo addressing optimizing circular audio buffers. DMA offloads codec data transfers so the CPU sustains full algorithm throughput at 48 kHz stereo. The 3.0V to 3.6V supply matches common audio board rails, and the 10x10 mm TQFP keeps the controller footprint small on dense audio PCBs.
Recommended
Industrial Control and Automation
On factory automation equipment, HVAC controllers, and process instrumentation, the DSPIC33FJ64GP204T-I/PT provides 40 MIPS of 16-bit control throughput with 7 timers for scheduling and PWM generation and 3 serial I/O ports for RS-485/Modbus-class links. The industrial temperature rating (-40C to +85C) and ROHS3 compliance ease certification in commercial-industrial products. Boundary scan support simplifies production-line test via ICSP/ICD, and the 44-TQFP (10x10) provides enough I/O for keypad, display, and actuator interfacing. The 8-channel DMA keeps communication servicing from jittering time-critical control loops - a common failure mode in interrupt-driven MCU designs.
Recommended
Embedded Control Retrofits and Legacy Maintenance
Because the dsPIC33FJ64GPX04 family remains active and widely stocked (DigiKey ships same day; 8 distributors listed on Octopart), the DSPIC33FJ64GP204T-I/PT is a practical processor for maintaining or redesigning legacy control boards originally built around 16-bit DSCs. The 64KB flash typically accommodates expanded firmware features, and the pin-compatible 128KB variant offers a no-PCB-change upgrade path. Engineers performing end-of-life redesigns can reuse the same footprint across 32KB, 64KB, and 128KB family members, protecting the layout investment while scaling memory. The tape-and-reel format supports automated reassembly lines for production runs of retrofitted boards.
Recommended
Portable and Battery-Powered Instruments
Handheld measurement tools, dataloggers, and battery-powered analyzers benefit from the DSPIC33FJ64GP204T-I/PT's single-chip integration: 40 MIPS processing, 7 timers, 3 serial ports, and DMA in a 10x10 mm TQFP reduces board area and component count, directly lowering cost and battery drain versus multi-chip DSP+MCU solutions. The 3.0V to 3.6V supply operates directly from a single-cell boost or 3.3V LDO rail. Low-power management modes let the controller sleep between measurements, and wake-up via the external interrupt sources supports event-driven logging. The industrial temperature grade covers cold-chain and outdoor handheld use cases where consumer-grade parts would fail.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33FJ64GP204T-I/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33FJ64GP204-I/PT | DSPIC33FJ32GP204-I/PT | DSPIC33FJ128GP204-I/PT | DSPIC33FJ64MC204-I/PT |
|---|---|---|---|---|---|
| Package | 44-TQFP (10x10) | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same | 44-TQFP (10x10) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Speed | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS | 40 MIPS |
| Program Flash | 64 KB | 64 KB | 32 KB | 128 KB | 64 KB |
| SRAM | 8 KB | 8 KB | 8 KB | 16 KB | 8 KB |
| DMA Channels | 8 | 8 | 8 | 8 | 8 |
| Operating Temperature | -40C to +85C (I grade) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Peripheral Focus | General Purpose (GP) | General Purpose (GP) | General Purpose (GP) | General Purpose (GP) | Motor Control (MC) |
Key Differentiators
- General Purpose peripheral set with advanced analog (vs DSPIC33FJ64MC204-I/PT)
- Extended temperature upgrade path on the same footprint (vs DSPIC33FJ64GP204T-E/PT)
- Pin-compatible flash scaling within the family (vs DSPIC33FJ128GP204-I/PT)
- Trade-off: smaller memory at lower cost (vs DSPIC33FJ32GP204-I/PT)
Design Notes
The DSPIC33FJ64GP204T-I/PT requires a tightly regulated 3.0V to 3.6V rail. Place 100 nF ceramic decoupling capacitors at every VDD/VSS pin pair, plus 4.7 uF to 10 uF bulk near the chip. Exceeding 3.6V risks permanent core damage, so use an LDO with tight tolerance rather than a loosely regulated 3.3V rail from a switching converter. For flash write operations, verify the supply stays within the datasheet voltage required for self-timed writes; brown-out reset configuration should be enabled to prevent corrupted flash during supply dips.
On the 44-TQFP (10x10) footprint, connect all power and ground pins and use a solid ground plane on layer 2. Keep the crystal/oscillator loop as short as possible with guard ground, since the 40 MIPS core is sensitive to clock integrity. Route analog inputs away from PWM and serial switching lines; the GP variant's advanced analog peripherals require a clean reference. Follow the Microchip family datasheet PCB layout guidelines and use the standard 0.5 mm pitch TQFP land pattern per IPC-7351 recommendations.
Do not confuse the T (tape and reel), I (industrial -40C to +85C), and E (extended -40C to +125C) suffixes when ordering - the E grade costs more but is mandatory above 85C ambient. Another common pitfall: the 8 DMA channels must be mapped to correct peripheral request sources during initialization, otherwise transfers silently never trigger. Finally, verify your compiled application fits the 64KB flash with headroom; if it does not, the pin-compatible DSPIC33FJ128GP204-I/PT doubles memory with no PCB change.
Estimated: the dsPIC33FJ64GP204 at 40 MIPS draws on the order of tens of milliamps from a 3.3V rail (tens to low hundreds of milliwatts), so the 44-TQFP package with standard copper pours keeps junction temperature well within the -40C to +85C rating without a heatsink. Confirm against the family datasheet current-consumption tables for your actual clock configuration, since peripherally gated operation can cut active current substantially.
Compliance Information
ROHS3 Compliant per distributor listing (mcu-supplier.com). REACH, halogen-free, and conflict-minerals status not stated in provided data.
