DSPIC33EV128GM004T-I/P8 - 16-bit 5V DSC, 128KB Flash, TQFP-48 | Microchip
MPN: DSPIC33EV128GM004T-I/P8 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.2 | $6.20 |
| 10 | $5.58 | $55.80 |
| 100 | $4.96 | $496.00 |
| 500 | $4.45 | $2,225.00 |
| 1,000 | $4.05 | $4,050.00 |
DSPIC33EV128GM004T-I/P8 Overview
A digital signal controller combines the computational architecture of a digital signal processor with the peripheral set and ease of use of a microcontroller. Within the power management hierarchy of embedded systems, a DSC sits between general-purpose MCUs and full DSPs, offering hardware DSP multiply-accumulate instructions alongside deterministic control peripherals. The dsPIC33EV family extends this concept with a 5V-tolerant core, making it directly suited to harsh electrical environments where 3.3V controllers require level shifting or external protection.
Key features of this device include on-chip error-correction code (ECC) Flash for functional-safety (FuSa) designs, six motor-control PWM channels for inverter and motor drive applications, three integrated operational amplifiers that reduce external component count in current-sensing paths, a Charge Time Measurement Unit (CTMU) for capacitive touch and precision time measurement, and a SENT peripheral compliant with the SAE J2716 automotive sensor interface.
Architecturally, the dsPIC33E core is a modified Harvard 16-bit pipeline processor with hardware DSP support, a fast interrupt system, and direct memory access for data movement without CPU intervention. The 5V operation differentiates the EV family from lower-voltage dsPIC33EP variants, providing higher noise immunity in electrically noisy motor control, appliance, and automotive environments.
Typical applications include automotive sensors and touch/control units, BLDC and PMSM motor control in industrial drives, appliance control boards, and DC-DC power conversion where the DSP engine and MC PWM peripherals enable field-oriented control algorithms.
Design-wise, budget the 4KB RAM carefully; field-oriented control with floating-point intermediate values may require fixed-point arithmetic to fit. Decouple VDD with 0.1 uF per pin and use the on-chip op amps for low-side current sensing to reduce BOM cost.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes beyond what the manufacturer datasheet alone provides.
Drop-in alternatives for DSPIC33EV128GM004T-I/P8 — 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 DSPIC33EV128GM004T-I/P8 (same form factor and footprint) — differing in Package, Operating Temperature, Functional Safety Support, Flash Memory, RAM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSPIC33EV256GM004-I/P8
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View Datasheet →DSPIC33EV64GM004-I/P8
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View Datasheet →DSPIC33EV128GM004-E/P8
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View Datasheet →DSPIC33EV128GM104-I/P8
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
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View Datasheet →DSPIC33EV128GM004T-I/P8 Maximum Ratings & Electrical Characteristics
| Core Architecture | 16-bit dsPIC33E modified Harvard |
| Maximum Core Speed | 70 MIPS / 70 MHz |
| Supply Voltage | 5 V |
| Program Memory (Flash) | 128 KB (43K x 24 instruction words), with ECC |
| RAM | 4 KB |
| Motor Control PWM Channels | 6 |
| On-chip Op Amps | 3 |
| CTMU (Charge Time Measurement Unit) | Yes |
| SENT Peripheral (SAE J2716) | Yes |
| Functional Safety Support | Yes (FuSa package per DigiKey) |
| Operating Temperature | -40C to +125C (industrial, I suffix) |
| Package | 48-TQFP, 7x7 mm (P8 suffix) |
| Mounting Type | Surface Mount |
| Reel Packaging | T suffix (Tape and Reel) |
| RoHS Status | Compliant (per distributor data) |
| Family | dsPIC33EV GM, 5V DSC for harsh environments |
DSPIC33EV128GM004T-I/P8 48-tqfp, 7x7 mm (p8 suffix) Pin Configuration Guide
Pin configuration for DSPIC33EV128GM004T-I/P8 (48-tqfp, 7x7 mm (p8 suffix) 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 DSPIC33EV128GM004T-I/P8.
Refer to the datasheet for full pin configuration.
Typical Applications
DSPIC33EV128GM004T-I/P8 is suitable for 6 applications: Automotive Sensors and Control Units, BLDC/PMSM Motor Control, Appliance Control Boards, Industrial DC-DC and Power Conversion, Touch Sensing Human Interface Panels, Sensor Signal Conditioning and Data Acquisition Nodes.
Automotive Sensors and Control Units
The DSPIC33EV128GM004T-I/P8 is purpose-built for automotive sensor nodes and touch/control units that operate in noisy, vibration-heavy environments. Its direct 5V operation provides superior noise immunity over 3.3V controllers, while the on-chip SENT peripheral implements the SAE J2716 sensor interface natively - eliminating an external SENT transceiver or software bit-banging that consumes CPU cycles. The ECC Flash protects program memory against bit upsets relevant to functional-safety programs, and the CTMU supports capacitive touch keys on weather-exposed panels. Use the internal 3 op amps to condition resistive or Hall sensor bridges directly into the ADC, keeping BOM cost low. At 70 MIPS there is ample headroom for diagnostic and protocol layers on top of the sensing loop.
Recommended
BLDC/PMSM Motor Control
The DSPIC33EV128GM004T-I/P8 fits motor-drive designs through six motor-control PWM channels, complementary outputs with programmable dead time, and three on-chip op amps configured as low-side current-sense amplifiers feeding the ADC. A typical sensorless or encoder-based field-oriented-control loop executes comfortably at 70 MIPS using fixed-point DSP multiply-accumulate instructions, with the 4KB RAM holding the control state frame and communication buffers. Running the controller directly at 5V improves gate-drive interface robustness and brown-out immunity near the inverter, reducing optocoupler or level-shifter stages. Place the shunts under the op-amp input pins with Kelvin routing, and use the PWM fault inputs for hardware over-current shutdown independent of firmware latency.
Recommended
Appliance Control Boards
Major appliance controllers - washing machines, dishwashers, induction cooktops - benefit from this part's combination of motor-control PWM, capacitive touch via CTMU, and 5V noise immunity in electrically noisy cabinets. The 128KB ECC Flash stores the full application including UI, motor, and communication layers, while the -40C to +125C rating covers unventilated control-box environments. The 3 op amps can read motor phase currents and a thermistor bridge without external amplifiers, and the DSP core handles harmonic-suppression algorithms for inverter compressor drives. The CTMU-based touch interface replaces mechanical switches that fail under grease and moisture, and the SENT/UART peripherals cover service diagnostics. Firmware fits comfortably; budget RAM when adding Wi-Fi class protocol stacks.
Recommended
Industrial DC-DC and Power Conversion
In industrial power conversion - telecom rectifiers, servo drives, solar micro-inverters - the DSPIC33EV128GM004T-I/P8 provides the 70 MIPS DSP core needed for digital control loops executing at tens of kHz. The six MC PWM channels support interleaved topologies (e.g., two interleaved buck phases) with complementary outputs and dead-time control, while the 12-bit ADC sampling synchronized to the PWM triggers keeps control-loop latency deterministic. Native 5V operation simplifies gate-driver interfaces and improves noise margin near switching circuitry, an advantage over 3.3V controllers on the same board. The ECC Flash protects the control firmware in electrically harsh cabinets, and -40C to +125C rating covers outdoor and sealed enclosures. Scale compensation and protection logic run in interrupt context with predictable timing.
Recommended
Touch Sensing Human Interface Panels
The integrated Charge Time Measurement Unit (CTMU) makes this DSC a compact choice for capacitive touch panels on white goods, industrial HMI bezels, and automotive interior controls. The CTMU measures charge time on touch pads with sub-picofarad resolution, and the DSP core applies drift-compensation and threshold algorithms in software, so no external touch controller is needed. The 48-pin TQFP exposes up to a dozen pad channels alongside LED drive, buzzer, and communication pins for a complete panel solution on one chip. Operating at 5V raises the sense-signal swing and EMI robustness behind glass or plastic overlays, and the -40C to +125C range suits sealed outdoor keypads. EEPROM emulation in the ECC Flash stores calibration and backlight preference data.
Recommended
Sensor Signal Conditioning and Data Acquisition Nodes
Industrial sensing nodes - pressure, strain, thermocouple front ends - use the DSPIC33EV128GM004T-I/P8's three op amps as programmable gain stages ahead of the internal ADC, followed by DSP filtering (IIR/FIR via hardware multiply) to clean noisy signals before transmission. The DSP engine executes a 64-tap FIR filter efficiently at 70 MIPS, and DMA moves ADC samples without CPU overhead, leaving cycles for the SENT, UART, or SPI output path. Because the whole signal chain - amplifier, ADC, filter, and interface - lives on one 5V chip, ground-loop and level-shift problems common in multi-IC analog chains are minimized, and the industrial temperature rating supports unconditioned field installations. The 128KB Flash holds calibration tables and multiple sensor profiles.
Recommended
Recommended Products Summary
Engineering reference data for DSPIC33EV128GM004T-I/P8 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSPIC33EV256GM004-I/P8 | DSPIC33EV64GM004-I/P8 | DSPIC33EV128GM004-E/P8 | DSPIC33EV128GM104-I/P8 |
|---|---|---|---|---|---|
| Package | 48-TQFP (7x7 mm) | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same | 48-TQFP (7x7 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 128 KB ECC | 256 KB ECC | 64 KB ECC | 128 KB ECC | 128 KB ECC |
| Core Speed | 70 MIPS / 70 MHz | 70 MIPS / 70 MHz | 70 MIPS / 70 MHz | 70 MIPS / 70 MHz | 70 MIPS / 70 MHz |
| RAM | 4 KB | 4 KB | 4 KB | 4 KB | 4 KB |
| Supply Voltage | 5 V | 5 V | 5 V | 5 V | 5 V |
| Motor Control PWM / Op Amps | 6 MC PWM, 3 op amps | 6 MC PWM, 3 op amps | 6 MC PWM, 3 op amps | 6 MC PWM, 3 op amps | 6 MC PWM, 3 op amps |
| Operating Temperature | -40C to +125C (I grade) | -40C to +125C (I grade) | -40C to +125C (I grade) | -40C to +125C (E grade) | -40C to +125C (I grade) |
| SENT / CTMU / FuSa Support | Yes / Yes / Yes | Yes / Yes / Yes | Yes / Yes / Yes | Yes / Yes / Yes | Yes / Yes / Yes |
Key Differentiators
- Native 5V operation with harsh-environment noise immunity (vs DSPIC33EP64MC504-E/MV)
- ECC Flash for functional-safety programs (vs DSPIC33EV64GM004-I/P8)
- Three on-chip op amps reduce analog BOM (vs DSPIC33EV128GM004T-E/PT (44-pin variant))
- Trade-off: 4KB RAM is small for this performance class (vs DSPIC33EV256GM004-I/P8)
Design Notes
Place a 0.1 uF ceramic decoupling capacitor at each VDD pin pair, as close to the pin as possible, plus one bulk 4.7-10 uF capacitor near the supply entry. The TQFP-48 has VDD/VSS pairs distributed on multiple sides to support motor-control switching noise; do not share a single bulk capacitor across the package. Keep the internal op-amp input traces short and guard them with ground pour when routed near PWM lines. Route SWD/ICSP programming pins (PGD/PGC) to a 5-pin header even in production boards for field firmware updates.
The 4KB RAM is the most frequent design limitation on this part. Before committing firmware architecture, compile a prototype FOC or communication stack and check the linker-generated memory map; enabling an Ethernet-class protocol stack or double-buffered ADC DMA on this RAM is not feasible. Also note the T suffix indicates tape-and-reel packaging, not a silicon difference - the P8 suffix selects the 48-pin TQFP, and 44-pin PT variants are NOT pin-compatible with this footprint. Verify the exact ordering code on reels received against your BOM.
Estimated: at 70 MHz core with all peripherals active, typical core current is in the tens of mA at 5V, giving roughly 0.2-0.3W internal dissipation plus I/O drive loads. The 48-TQFP theta_JA on a standard 4-layer board keeps the junction temperature rise below about 20C at this power, which is comfortably within the +125C rating for -40C to +85C ambient environments. Only extreme I/O loading (many pins sourcing LED current simultaneously) requires thermal review; use the datasheet electrical characteristics table for exact current figures rather than these estimates.
When using the CTMU for capacitive touch, dedicate a ground ring around each pad and route CTMU channels away from PWM and crystal traces; charge-time measurement is sensitive to coupled switching noise. For the on-chip op amps used as current-sense amplifiers, apply Kelvin connections directly at the shunt resistor pads and keep the feedback path inside the shunt loop to avoid gain errors from trace resistance. Add a small RC anti-alias filter between op-amp output and ADC pin if switching noise from an adjacent inverter is present.
Compliance Information
RoHS compliant per DigiKey/Mouser/PCBElectronics distributor listings. AEC-Q100 qualification grade not stated in provided data - confirm exact automotive qualification variant with Microchip. REACH/halogen-free/conflict-minerals declarations available from Microchip Green packaging documentation for the exact ordering code.
