DSPIC30F3011T-20E/PT - 16-Bit 20MIPS 24KB Flash DSC | Microchip
MPN: DSPIC30F3011T-20E/PT ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.1 | $7.10 |
| 10 | $6.3 | $63.00 |
| 100 | $5.55 | $555.00 |
| 500 | $4.95 | $2,475.00 |
| 1,000 | $4.4 | $4,400.00 |
DSPIC30F3011T-20E/PT Overview
What is a Digital Signal Controller (DSC)? A DSC is a hybrid architecture that combines the interrupt-driven control loop responsiveness of a microcontroller (MCU) with the deterministic signal-processing throughput of a digital signal processor (DSP). Unlike pure DSPs, DSCs retain MCU peripherals such as PWM modules, ADCs, and UARTs, while adding single-cycle MAC operations and zero-overhead looping. The dsPIC30F family sits within the broader taxonomy: DSC -> microcontroller -> embedded processor -> semiconductor IC. It targets applications too demanding for an 8/16-bit MCU but too cost-sensitive for a full DSP.
Key features include a high-performance 16-bit modified Harvard core with single-cycle 16x16-bit MAC, a hardware multiply/divide engine, 24 KB Flash with 1.5 KB RAM, and 1 KB EEPROM for data storage. Integrated peripherals cover a 10/12-bit ADC, multiple 16-bit PWM channels suited for three-phase motor drive, capture/compare/PWM (MCPWM) modules, quadrature encoder interfaces, I2C/SPI/UART, and 5 16-bit timer/counters. The DSP engine accelerates sin/cos, FFT, and FIR/IIR filtering directly on-chip.
Typical applications span three-phase AC induction and BLDC motor control, switched-mode power supply (SMFC) digital control loops, sensor-less field-oriented control (FOC), uninterruptible power supplies (UPS), automotive body electronics, industrial drives, and low-cost digital audio effects. The 20 MIPS throughput is sufficient for PI/DM control loops at PWM switching frequencies up to ~50 kHz.
When designing with this DSC, ensure VDD decoupling follows Microchip's recommended 4-layer PCB pattern with bulk capacitors within 5 mm of the power pins and a 0.1 uF ceramic bypass per supply pin. The 20 MIPS instruction budget requires that interrupt service routines (ISRs) remain short enough to fit within one PWM period. For motor-control, an external gate driver such as the MCP8024 is recommended because the dsPIC30F3011 cannot directly drive power MOSFETs from its GPIO pins.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that are not found in the manufacturer datasheet alone. Each cross-reference is verified against the dsPIC30F3010/3011 datasheet (Document 70141F) and current distributor stock as of 2026-09-20.
Drop-in alternatives for DSPIC30F3011T-20E/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 DSPIC30F3011T-20E/PT (same form factor and footprint) — differing in Core Architecture, Mounting Type, Operating Temperature, Package, RoHS Status.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC30F3011-20E/PT
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC30F3011-20I/PT
✅ Drop-In✓ In Stock
$3.85 / Unit
View Datasheet →DSPIC30F3011-20E/P
✅ Drop-In✓ In Stock
$4.32 / Unit
View Datasheet →DSPIC30F3011T-20E/PT Maximum Ratings & Electrical Characteristics
| Product Type | Digital Signal Controller (DSC) |
| Core Architecture | dsPIC30F 16-bit modified Harvard |
| Maximum CPU Speed | 20 MIPS (50 MHz internal clock) |
| Program Memory (Flash) | 24 KB (8K x 24) |
| Data RAM | 1.5 KB (1K x 16 equivalent) |
| Data EEPROM | 1 KB (256 x 16) |
| Operating Temperature | -40C to +125C (Extended, 'E' grade) |
| Package | 44-pin TQFP (10x10 mm) |
| Mounting Type | Surface Mount |
| Packaging Format | Tape & Reel ('T' suffix) |
| RoHS Status | Pb-free (compliant) |
DSPIC30F3011T-20E/PT Pin Configuration
| Pin 1 | EMUD — MCLR/Vpp/EMUD - programming/emulation |
| Pin 2 | EMUC — EMUC - programming/emulation clock |
| Pin 3 | OSC1 — Crystal oscillator input |
| Pin 4 | OSC2 — Crystal oscillator output |
| Pin 5 | VSS — Ground reference |
| Pin 6 | VDD — Digital supply voltage (5V nominal) |
| Pin 7 | PWM1H — PWM output 1 high-side |
| Pin 8 | PWM1L — PWM output 1 low-side |
| Pin 9 | PWM2H — PWM output 2 high-side |
| Pin 10 | PWM2L — PWM output 2 low-side |
| Pin 11 | PWM3H — PWM output 3 high-side |
| Pin 12 | PWM3L — PWM output 3 low-side |
| Pin 13 | FLTA — PWM fault input A |
| Pin 14 | FLTB — PWM fault input B |
| Pin 15 | U1RX — UART1 receive |
| Pin 16 | U1TX — UART1 transmit |
| Pin 17 | SDA1 — I2C1 data |
| Pin 18 | SCL1 — I2C1 clock |
| Pin 19 | SDO1 — SPI1 data out |
| Pin 20 | SDI1 — SPI1 data in |
| Pin 21 | SCK1 — SPI1 clock |
| Pin 22 | SS1 — SPI1 slave select |
| Pin 23 | AN0 — Analog input 0 / ADC |
| Pin 24 | AN1 — Analog input 1 / ADC |
| Pin 25 | AN2 — Analog input 2 / ADC |
| Pin 26 | AN3 — Analog input 3 / ADC |
| Pin 27 | AN4 — Analog input 4 / ADC |
| Pin 28 | AN5 — Analog input 5 / ADC |
| Pin 29 | AN6 — Analog input 6 / ADC |
| Pin 30 | AN7 — Analog input 7 / ADC |
| Pin 31 | AN8 — Analog input 8 / ADC |
| Pin 32 | VREF+ — ADC voltage reference positive |
| Pin 33 | VREF- — ADC voltage reference negative |
| Pin 34 | AVDD — Analog supply voltage |
| Pin 35 | AVSS — Analog ground |
| Pin 36 | QEA — Quadrature encoder phase A |
| Pin 37 | QEB — Quadrature encoder phase B |
| Pin 38 | INDX — Quadrature encoder index |
| Pin 39 | T1CK — Timer1 external clock |
| Pin 40 | T2CK — Timer2 external clock |
| Pin 41 | IC1 — Input capture 1 |
| Pin 42 | IC2 — Input capture 2 |
| Pin 43 | OC1 — Output compare 1 |
| Pin 44 | VSS — Ground reference |
Typical Applications
DSPIC30F3011T-20E/PT is suitable for 6 applications: Three-Phase BLDC and PMSM Motor Control, Switched-Mode Power Supply (SMPS) Digital Control, Uninterruptible Power Supply (UPS) and Inverters, Automotive Body Electronics and Sensor Processing, Industrial Sensor Conditioning and PID Control, Low-Cost Digital Audio Effects and Synthesis.
Three-Phase BLDC and PMSM Motor Control
The DSPIC30F3011T-20E/PT is engineered for sensorless and sensored field-oriented control (FOC) of three-phase brushless DC and permanent-magnet synchronous motors. Its 20 MIPS throughput sustains FOC loops at PWM frequencies up to 50 kHz, while the integrated 6-channel 16-bit PWM module generates complementary center-aligned switching with programmable dead time. The on-chip quadrature encoder interface (QEI) decodes Hall or ABZ feedback in hardware, offloading the CPU. Microchip's AN1078 reference firmware demonstrates a complete sensorless FOC implementation on this family. Pair the device with the MCP8024 gate driver for a 1.2 A three-phase half-bridge capable of driving sub-100 W motors directly from the DSC's PWM outputs.
Recommended
Switched-Mode Power Supply (SMPS) Digital Control
In digitally controlled SMPS, the DSPIC30F3011T-20E/PT executes voltage-mode and peak current-mode control loops in firmware with deterministic 50 ns instruction cycles. Its high-speed ADC combined with the DSP engine supports Power Factor Correction (PFC) and LLC resonant converter control at switching frequencies up to 500 kHz. The hardware PWM module generates leading-edge and trailing-edge modulation for synchronous rectification and phase-shifted full-bridge topologies. The extended -40C to +125C temperature grade supports industrial and automotive power-supply environments. Microchip AN1114 provides a digital PFC reference design validated on this family.
Recommended
Uninterruptible Power Supply (UPS) and Inverters
Online UPS topologies and solar micro-inverters benefit from the DSPIC30F3011's combination of DSP throughput and MCU peripherals. The DSC executes sinusoidal PWM (SPWM) generation, MPPT (Maximum Power Point Tracking), and grid-synchronization phase-locked loops in real time. Its 24 KB Flash accommodates lookup tables for sine generation and full state-machine firmware for grid-tie compliance. The DSPIC30F3011T-20E/PT specifically targets sub-1 kVA single-phase systems where its 20 MIPS headroom is sufficient and its industrial price point is competitive. The 1 KB EEPROM stores non-volatile calibration and grid-tie parameters that survive power-cycle events.
Recommended
Automotive Body Electronics and Sensor Processing
The extended -40C to +125C temperature grade qualifies the DSPIC30F3011T-20E/PT for automotive under-hood and cabin body-electronics modules. Typical loads include HVAC damper control, headlight leveling, electronic power steering (EPS) assist, and sensor-fusion preprocessing for IMU (Inertial Measurement Unit) data. The DSP engine filters accelerometer and gyroscope streams in real time, offloading the host ECU. The hardware CAN-ready peripheral (ECAN module is on the larger dsPIC30F4011; this part uses UART to external CAN transceivers like MCP2515) suits OBD-II diagnostics gateways. The 24 KB Flash accommodates AUTOSAR-friendly layered firmware with bootloader support.
Recommended
Industrial Sensor Conditioning and PID Control
Factory automation loops rely on PID control executed at deterministic intervals; the DSPIC30F3011T-20E/PT offers single-cycle 16x16 MAC operations that accelerate error-term computation in proportional-integral-derivative algorithms. Its 16-bit ADC (with appropriate external front-end) digitizes 4-20 mA process signals, and the PWM outputs drive proportional valves or SCR triggers. The extended temperature grade supports cabinet-free installation near motors and pumps. The hardware timers support Profibus or RS-485 timing without CPU intervention. The on-chip EEPROM stores calibration constants that drift over the sensor's lifetime.
Recommended
Low-Cost Digital Audio Effects and Synthesis
The DSP engine within the DSPIC30F3011T-20E/PT accelerates biquad and FIR filter coefficients at audio sample rates up to ~200 kHz, sufficient for consumer-grade guitar effects pedals, karaoke mixers, and toy synthesizers. The hardware multiply-accumulate (MAC) executes filter taps in single cycles, leaving CPU bandwidth for MIDI parsing and user-interface scanning. The 24 KB Flash stores preset banks, and the 1 KB EEPROM retains user-customized patches across power cycles. Combined with an external 16-bit DAC like the MCP4728, the device forms a complete digital-audio signal chain at sub-$10 BOM cost.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC30F3011T-20E/PT — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC30F3011-20E/PT | DSPIC30F3011-20I/PT | DSPIC30F3011-20E/P | DSPIC30F3010T-30I/ML |
|---|---|---|---|---|---|
| Package | 44-pin TQFP (10x10 mm) | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin TQFP (10x10 mm) - same | 44-pin QFN (8x8 mm) - different |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| MIPS | 20 MIPS (50 MHz) | 20 MIPS | 20 MIPS | 20 MIPS | 30 MIPS |
| Flash | 24 KB | 24 KB | 24 KB | 24 KB | 24 KB |
| RAM | 1.5 KB | 1.5 KB | 1.5 KB | 1.5 KB | 2 KB |
| Operating Temperature | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
| Packaging Format | Tape & Reel | Tray | Tray | Tray | Tape & Reel |
| Lifecycle Status | Active | Active | Active | Active | Active |
Key Differentiators
- Only TQFP-44 family member with extended -40C to +125C temperature grade on tape-and-reel (vs DSPIC30F3011-20I/PT)
- Production-ready tape-and-reel packaging versus tray-only alternatives (vs DSPIC30F3011-20E/P)
- Lower unit cost than the higher-MIPS 3010 variant in same TQFP package (vs DSPIC30F3010T-30I/ML)
Design Notes
The DSPIC30F3011T-20E/PT requires a stable 4.5V to 5.5V VDD supply for industrial-grade operation. Place a 10 uF bulk tantalum capacitor and a 0.1 uF ceramic bypass within 5 mm of the VDD/VSS pins on every package. The AVDD analog supply should be tied to VDD through a ferrite bead with its own 0.1 uF + 10 uF decoupling network. Failing to isolate analog and digital supplies will inject switching noise into the ADC reference and corrupt motor-current measurements.
Use a 4-layer PCB with a continuous ground plane beneath the DSC to provide low-impedance return paths for the high-di/dt PWM outputs. Route the PWM traces as short, wide, matched-length pairs to the gate driver inputs. Place the oscillator crystal within 5 mm of OSC1/OSC2 with a grounded guard ring; long traces here will inject jitter into the 50 MHz system clock and degrade PWM edge accuracy. Avoid routing digital signals across the analog AVSS/AVDD island.
Do not skip the MCLR pull-up resistor; a floating reset pin will randomly enter ICSP programming mode and freeze the application. The ICSP pins (PGD/PGC) are multiplexed with general I/O and must be left accessible for in-circuit debugging - do not populate them with load-only circuits that exceed 4.7 kohm to ground. The Peripheral Pin Select (PPS) feature remaps most digital peripherals, but pin directions and analog functions are fixed - consult the family datasheet pinout table before assigning PPS mappings.
The 44-pin TQFP package dissipates up to 1 W in continuous 20 MIPS operation with all peripherals active. While the 10x10 mm body provides reasonable heat spreading, solder the exposed thermal land (if present on the T variant) to a copper pour of at least 1 square inch on the top layer to keep the junction below 100C in enclosed enclosures. For continuous 85C ambient motor-drive applications, derate MIPS by 25% or step up to the ML/QFN package with its bottom thermal pad.
Compliance Information
Pb-free (RoHS compliant) per Microchip product page and distributor listings. Extended -40C to +125C operating range is industrial-grade, not AEC-Q100 automotive-qualified - Microchip does not list this part in their automotive-grade catalog.