DSPIC30F2020-20E/SO - 16-bit DSC, 20 MIPS, 12KB Flash | Microchip
MPN: DSPIC30F2020-20E/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.06 | $8.06 |
| 10 | $7.31 | $73.10 |
| 100 | $6.21 | $621.00 |
| 500 | $5.45 | $2,725.00 |
| 1,000 | $4.78 | $4,780.00 |
DSPIC30F2020-20E/SO Overview
What is a dsPIC30F DSC? A Digital Signal Controller is a hybrid between a microcontroller and a digital signal processor (DSP), combining deterministic interrupt-driven control with hardware MAC, barrel shifter, and zero-overhead loop instructions. In the system hierarchy, a DSC sits above a plain microcontroller but below a stand-alone DSP, and is widely used in motor control, digital power conversion, and audio processing applications where both fast control loops and signal conditioning are required.
Key features of the DSPIC30F2020 include a 20 MIPS modified Harvard CPU core with native 16-bit data path, dedicated PWM and 10-bit ADC peripherals tuned for multi-phase power conversion, 21 general-purpose I/O pins, and an operating voltage range of 2.5 V to 5.5 V. The 'E' suffix designates the -40C to +125C extended industrial temperature grade suitable for harsh industrial and automotive under-hood environments. The SO package (SOIC-28, 7.50 mm body width) is the most common surface-mount form factor for this family.
Architecturally, the DSPIC30F2020-20E/SO inherits the dsPIC30F core's dual-bus architecture - one bus for program fetch, one for data access - which lets the controller sustain full 20 MIPS throughput while ADC and PWM peripherals run at their native rates. The integrated 10-bit ADC with as many as 16 input channels and the dedicated Motor Control PWM module (up to 8 PWM outputs) are what make this part particularly well suited to multi-loop SMPS designs.
Typical applications include AC/DC and DC/DC converter digital control loops, single- and multi-phase PFC stages, uninterruptible power supplies (UPS), digital welding controllers, and induction-heating inverters. The wide 2.5 V to 5.5 V supply range and 5 V-tolerant digital I/O simplify interfacing to power-stage gate drivers and analog front ends.
When designing with this part, note that the SOIC-28 package limits maximum power dissipation; at 20 MIPS sustained operation plan the PCB thermal relief accordingly. Also note that firmware development relies on the MPLAB XC16 compiler and the MPLAB ICD programmer/debugger tool chain.
This page synthesizes distributor availability, drop-in alternative listings, and practical PCB design considerations not found in the manufacturer datasheet alone, giving engineers a single, citable reference for design-in or second-source decisions.
Drop-in alternatives for DSPIC30F2020-20E/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 DSPIC30F2020-20E/SO (same form factor and footprint) — differing in Package, RoHS Status.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC30F2020-20I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC30F2010-20E/SO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC30F2011-20E/SO
✅ Drop-In📋 Reference alternative (not in catalog)
DSPIC30F1010-20E/SO
✅ Drop-In✓ In Stock
$3.02 / Unit
View Datasheet →DSPIC30F2023-20E/SO
✅ Drop-In📋 Reference alternative (not in catalog)
TMS320F28027PTT
✅ Drop-In✓ In Stock
$2.68 / Unit
View Datasheet →DSPIC30F2020-20E/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | dsPIC30F, 16-bit DSC |
| Maximum CPU Speed | 20 MIPS at 40 MHz CPU clock |
| Program Memory (Flash) | 12 KB (4K x 24) |
| Data RAM | 512 bytes |
| I/O Pins | 21 |
| Operating Voltage Range | 2.5 V to 5.5 V |
| Operating Temperature Range | -40C to +125C (extended, 'E' suffix) |
| Package | 28-pin SOIC (SO), 7.50 mm body |
| Mounting Type | Surface Mount |
| ADC | 10-bit, up to 16 input channels |
| PWM Outputs | Up to 8 (Motor Control PWM module) |
| RoHS Status | Compliant (SO package) |
| Lead-Free | Yes |
| AEC-Q100 Automotive | Not qualified (industrial grade only) |
DSPIC30F2020-20E/SO Pin Configuration
| Pin 1 | EMUD/AN0/VREF+/CN2/RB0 — I/O port, analog input 0, VREF+, change notification |
| Pin 2 | EMUC/AN1/VREF-/CN3/RB1 — I/O port, analog input 1, VREF-, change notification |
| Pin 3 | AN2/SS1/CN4/RB2 — I/O port, analog input 2, SPI SS1 |
| Pin 4 | AN3/INDX/CN5/RB3 — I/O port, analog input 3, QEI index |
| Pin 5 | AN4/QEA/CN6/RB4 — I/O port, analog input 4, QEI phase A |
| Pin 6 | AN5/QEB/CN7/RB5 — I/O port, analog input 5, QEI phase B |
| Pin 7 | AVDD — Analog supply voltage |
| Pin 8 | AVSS — Analog ground |
| Pin 9 | PWM1H/CN8/RD0 — PWM1 high output, change notification |
| Pin 10 | PWM1L/CN9/RD1 — PWM1 low output, change notification |
| Pin 11 | PWM2H/RD2 — PWM2 high output |
| Pin 12 | PWM2L/RD3 — PWM2 low output |
| Pin 13 | PWM3H/RD4 — PWM3 high output |
| Pin 14 | PWM3L/RD5 — PWM3 low output |
| Pin 15 | PWM4H/RD6 — PWM4 high output |
| Pin 16 | PWM4L/RD7 — PWM4 low output |
| Pin 17 | FLTA/INT0/CN0/RF6 — PWM fault A input, INT0, change notification |
| Pin 18 | TCKIFA/PWM5H/FLTB/RF7 — PWM5 high output, fault B input |
| Pin 19 | SCK1/CN1/RF2 — SPI clock, change notification |
| Pin 20 | SDI1/RF3 — SPI data in |
| Pin 21 | SDO1/RF4 — SPI data out |
| Pin 22 | U1RX/SDA1/RF2_alt — UART1 RX / I2C1 SDA |
| Pin 23 | U1TX/SCL1/RF5 — UART1 TX / I2C1 SCL |
| Pin 24 | SDA2/RG3 — I2C2 SDA |
| Pin 25 | SCL2/RG2 — I2C2 SCL |
| Pin 26 | OSC1/CLKI — Crystal oscillator input or external clock |
| Pin 27 | OSC2/CLKO/RC15 — Crystal oscillator output or external clock out |
| Pin 28 | VDD — Digital supply voltage |
Typical Applications
DSPIC30F2020-20E/SO is suitable for 6 applications: Multi-Phase Power Factor Correction (PFC), Digital Switch-Mode Power Supply (SMPS) Control, Uninterruptible Power Supply (UPS) Digital Control, Digital Welding and Induction Heating Control, BLDC Motor Drive Controller, HID Lamp Ballast Control.
Multi-Phase Power Factor Correction (PFC)
The DSPIC30F2020-20E/SO is well matched to interleaved PFC stages because its 8-channel Motor Control PWM module and 10-bit ADC can sample and drive two power loops in parallel. With 20 MIPS throughput the controller sustains voltage-loop and current-loop math at the 50 kHz PWM rates typical of CCM PFC stages; 12 KB Flash accommodates the algorithm plus state-machine code, and the SOIC-28 footprint allows the controller to fit on the PFC daughtercard next to the gate drivers. Designers should verify that the 10-bit ADC resolution is acceptable for the intended current-loop accuracy (typically >1% full-scale) before selecting.
Recommended
Digital Switch-Mode Power Supply (SMPS) Control
In AC/DC and DC/DC converter control loops, the DSPIC30F2020-20E/SO operates from a 2.5 V to 5.5 V rail and can directly interface to 3.3 V gate drivers such as the TC427. Its 21 I/O pins are sufficient to drive synchronous rectification, current sensing, and over-current protection alongside the primary PWM outputs. The 20 MIPS throughput supports average-current-mode and peak-current-mode control loops at switching frequencies up to 250 kHz; for higher-frequency converters (>=500 kHz) a dsPIC33EP or C2000 part is recommended instead.
Recommended
Uninterruptible Power Supply (UPS) Digital Control
UPS topologies require the controller to manage battery charging, inverter switching, and grid synchronisation concurrently. The DSPIC30F2020-20E/SO handles these tasks with its 8-channel PWM (sufficient for a single-phase H-bridge inverter plus auxiliary converters), 10-bit ADC (adequate for battery current and grid voltage sensing), and 12 KB Flash to host the state machine and protection firmware. The 2.5 V to 5.5 V supply range simplifies operation directly from battery stacks down to single Li-ion cells.
Recommended
Digital Welding and Induction Heating Control
Welding and induction-heating inverters operate at low-duty-cycle, high-current pulses and require precise timing control with extended thermal margins. The DSPIC30F2020-20E/SO's -40C to +125C extended temperature grade ('E' suffix) survives the thermal environment near the heatsink. With 20 MIPS throughput and 8 PWM outputs the device manages the resonant tank zero-voltage-switching timing, current sensing, and arc/load characterisation loops. The SOIC-28 package, while larger than QFN alternatives, eases rework in field-serviceable equipment.
Recommended
BLDC Motor Drive Controller
Brushless DC motor control requires three-phase PWM, back-EMF sensing, and current sensing, all within microsecond-scale control loops. The DSPIC30F2020-20E/SO's Motor Control PWM module can generate the six-step or sinusoidal commutation pattern needed for sensorless BLDC commutation, and the 10-bit ADC samples phase currents at the PWM centre point. At 20 MIPS the controller sustains 20 kHz PWM rates typical of small BLDC drives used in fans, pumps, and small appliances.
Recommended
HID Lamp Ballast Control
High-intensity-discharge (HID) lamp ballasts require resonant half-bridge or full-bridge inverter topologies driven by precise timing. The DSPIC30F2020-20E/SO's 8 PWM outputs and 20 MIPS throughput can drive the half-bridge timing while monitoring lamp voltage, current, and temperature for thermal management. The 12 KB Flash holds the warm-up, run-up, and steady-state control algorithms required to extend lamp life, and the SOIC-28 footprint keeps the controller out of the high-temperature lamp cavity.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC30F2020-20E/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC30F2020-20I/SO | DSPIC30F2010-20E/SO | DSPIC30F2011-20E/SO | DSPIC30F1010-20E/SO | DSPIC30F2023-20E/SO | TMS320F28027PTT |
|---|---|---|---|---|---|---|---|
| Package | 28-pin SOIC (SO) | 28-pin SOIC (SO) - same | 28-pin SOIC (SO) - same | 28-pin SOIC (SO) - same | 28-pin SOIC (SO) - same | 28-pin SOIC (SO) - same | 48-pin LQFP (PT) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Texas Instruments |
| Core Architecture | dsPIC30F, 16-bit DSC | dsPIC30F, 16-bit DSC | dsPIC30F, 16-bit DSC | dsPIC30F, 16-bit DSC | dsPIC30F, 16-bit DSC | dsPIC30F, 16-bit DSC | C2000, 32-bit DSC |
| Maximum CPU Speed | 20 MIPS / 40 MHz | 20 MIPS / 40 MHz | 20 MIPS / 40 MHz | 20 MIPS / 40 MHz | 10 MIPS / 20 MHz | 20 MIPS / 40 MHz | 60 MHz |
| Program Memory (Flash) | 12 KB | 12 KB | 6 KB | 24 KB | 6 KB | 12 KB | 32 KB |
| Data RAM | 512 bytes | 512 bytes | 512 bytes | 1024 bytes | 512 bytes | 512 bytes | 4096 bytes |
| Operating Temperature | -40C to +125C (extended) | -40C to +85C (industrial) | -40C to +125C (extended) | -40C to +125C (extended) | -40C to +125C (extended) | -40C to +125C (extended) | -40C to +125C |
| Operating Voltage | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 1.8 V to 3.3 V |
| RoHS Status | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant | Compliant |
Key Differentiators
- Higher Flash density than the DSPIC30F2010-20E/SO (vs DSPIC30F2010-20E/SO)
- Extended -40C to +125C temperature grade over the I-grade variant (vs DSPIC30F2020-20I/SO)
- Optimised SMPS peripherals vs general-purpose 16-bit MCUs (vs TMS320F28027PTT)
Design Notes
The 28-pin SOIC package on the DSPIC30F2020-20E/SO has a junction-to-ambient thermal resistance (theta_JA) typically above 70 C/W for a standard 2-layer JEDEC test board. At the -40C to +125C 'E' temperature grade this gives a maximum sustained dissipation of roughly 0.7 W before derating; for SMPS applications where the controller sits near heatsinks, place it on the cold side of the board and use copper pours to spread heat. Avoid mounting the IC adjacent to power magnetics and MOSFETs whose temperature rise exceeds 60C.
Place the VDD and AVDD decoupling capacitors (one 100 nF ceramic and one 10 uF bulk) within 3 mm of their respective IC pins. The analog AVSS/AVDD pair should be bypassed separately from the digital supply and joined at a single star point under the IC. Route analog ADC inputs (ANx pins) away from PWM traces to minimise capacitive coupling of switching noise into the ADC conversion result.
Do not exceed the absolute maximum supply voltage of 5.5 V on any VDD or AVDD pin; transients above this level can permanently damage the dsPIC30F core. The PWM outputs (PWMxH/L) are not 5 V-tolerant when the device is powered from 3.3 V; level-shift to gate drivers designed for 3.3 V CMOS input. The MCLR reset pin must be pulled high through a resistor for normal operation; leaving it floating causes intermittent reset events.
When using the 10-bit ADC for current sensing in PFC or motor-control loops, add an RC low-pass filter (typically 1 kohm and 1 nF) in front of each ANx input to limit wideband noise folding into the ADC. Sample current at the PWM centre point (synchronised with PWM interrupt) to avoid sampling during the MOSFET switching transient. Confirm ADC acquisition time plus conversion time is shorter than your PWM period.
Compliance Information
RoHS-compliant per Microchip product page (SO package). Not AEC-Q100 qualified; the 'E' suffix is industrial extended temperature grade, not automotive qualification. Halogen-free status not explicitly stated in provided data.
