DSP56858FVE - 16-bit 120MIPS DSP Controller, 144-LQFP | NXP
MPN: DSP56858FVE ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $28.5 | $28.50 |
| 10 | $25.1 | $251.00 |
| 100 | $21.4 | $2,140.00 |
| 500 | $18.75 | $9,375.00 |
| 1,000 | $16.2 | $16,200.00 |
DSP56858FVE Overview
Background Knowledge: A Digital Signal Controller (DSC) is a hybrid device that merges a microcontroller's control-oriented peripheral set with a digital signal processor's arithmetic throughput. Positioned in the taxonomy as DSC -> microcontroller unit (MCU) -> embedded processor -> semiconductor, DSCs are designed for real-time signal conditioning and closed-loop control in a single deterministic core, eliminating the latency and bandwidth bottlenecks of two-chip MCU+DSP solutions.
Key features include 47 general-purpose I/Os (5V TTL-tolerant), six independent DMA channels, two Enhanced Synchronous Serial Interfaces (ESSI), chip-select logic for glue-less ROM and SRAM interfacing, and an external memory interface supporting up to 8M words of data memory. The part operates from a 1.8V/3.3V supply and is fabricated in high-density CMOS with 3.3V-compatible I/Os rated to withstand 5.5V without damage.
Typical applications span motor control (BLDC, PMSM, AC induction), industrial automation controllers, voice/audio processing, power conversion (digital PFC, UPS control), and embedded DSP modules where deterministic real-time response is required alongside general-purpose control.
Design consideration: Because the DSP56858FVE is no longer manufactured (NXP lists it as NRND/EOL), lifecycle planning requires checking the NXP Product Change Notice for last-time-buy windows and qualifying an equivalent from the same DSP5685x family or a successor such as the DSC 56F8xxx series.
This page synthesizes distributor availability, drop-in alternatives from the DSP5685x family, lifecycle notes, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for DSP56858FVE — 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 DSP56858FVE (same form factor and footprint) — differing in Operating Temperature, Package, Performance, Supply Voltage.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSP56852VF120
✅ Drop-In📋 Reference alternative (not in catalog)
DSP56F805FV80E
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →DSPB56721AF
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSP56858FVE Maximum Ratings & Electrical Characteristics
| Core Architecture | DSP56800E (16-bit DSP hybrid controller) |
| Operating Frequency | 120 MHz |
| Performance | 120 MIPS |
| Program SRAM | 40K x 16-bit |
| Data SRAM | 24K x 16-bit |
| Boot ROM | 1K x 16-bit |
| External Program Memory | Up to 2M words |
| External Data Memory | Up to 8M words |
| General-Purpose I/Os | 47 |
| DMA Channels | 6 independent |
| Enhanced Synchronous Serial Interfaces (ESSI) | 2 |
| Supply Voltage | 1.8 V / 3.3 V (core/I/O) |
| I/O Tolerance | 5 V TTL-compatible (3.3 V process, withstands 5.5 V) |
| Process Technology | High-density CMOS |
| Package | 144-pin LQFP (FVE) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (industrial) |
DSP56858FVE 144-pin lqfp (fve) Pin Configuration Guide
Pin configuration for DSP56858FVE (144-pin lqfp (fve) 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 DSP56858FVE.
Refer to the datasheet for full pin configuration.
Typical Applications
DSP56858FVE is suitable for 6 applications: BLDC / PMSM Motor Control, Industrial Automation Controllers, Digital Power Factor Correction (PFC) and UPS Control, Audio / Voice Processing Front-Ends, Embedded Signal-Conditioning Modules, Digital Audio Effects and Equalizers.
BLDC / PMSM Motor Control
The DSP56858FVE's 120 MIPS deterministic throughput and 47 GPIO make it a strong fit for brushless DC and permanent-magnet synchronous motor drive loops. Per the NXP datasheet, the dual-rail 1.8V/3.3V supply with 5V-tolerant I/Os lets the part interface directly to gate drivers and current-sense amplifiers operating at 3.3V logic levels, while the six DMA channels offload encoder/PWM servicing from the CPU. Engineers running field-oriented control at 10-20 kHz PWM with sub-1 microsecond control-loop latency benefit from the single-cycle MAC unit. Compared with the DSP56F805FV80E in the same family, the 56858 offers 50% more CPU headroom for sensorless FOC algorithms.
Recommended
Industrial Automation Controllers
PLC and motion-controller designs benefit from the DSP56858FVE's combination of deterministic DSP processing and 47 GPIO channels for sensor/actuator interfacing. The chip-select logic, per the NXP datasheet, supports glue-less external ROM and SRAM expansion, allowing firmware upgrade and parameter logging without external address latches. The 120 MIPS budget easily handles PID control loops for hydraulics, temperature, and position control running at 1 kHz with margin for protocol stacks (Modbus, CAN, EtherCAT) on the ESSI ports. Designers migrating from the legacy 56F80x series benefit from the doubled SRAM.
Recommended
Digital Power Factor Correction (PFC) and UPS Control
Power-conversion loops - PFC, UPS inverter control, and digital SMPS regulation - require deterministic DSP performance with tight interrupt latency, exactly what the DSP56858FVE delivers at 120 MIPS. Per the datasheet, the six DMA channels can stream ADC samples into memory without CPU intervention, leaving full core bandwidth for the control-law compute. The two ESSI ports support synchronized multi-phase PWM generation for interleaved PFC topologies. Migration to the 56F8xxx series is the modern path, but the 56858 remains prevalent in installed UPS and rectifier systems.
Recommended
Audio / Voice Processing Front-Ends
The two Enhanced Synchronous Serial Interfaces (ESSI) and 120 MIPS throughput suit the DSP56858FVE for audio front-end processing including sample-rate conversion, simple codecs, and voice-band filtering. Per the NXP datasheet, the ESSI ports support I2S-like protocols and connect directly to common audio ADCs/DACs. The 24K x 16-bit data SRAM holds 48 KB of working memory for FIR/IIR coefficient tables and audio buffers - sufficient for typical voice-band and audio-band DSP at 8-48 kHz sample rates.
Recommended
Embedded Signal-Conditioning Modules
Industrial sensor signal conditioning - strain-gauge amplifiers, LVDT signal chains, vibration analysis - is a natural fit for the DSP56858FVE's hybrid DSP+MCU architecture. The 40K x 16-bit program SRAM (80 KB) and 24K x 16-bit data SRAM (48 KB) are large enough for on-chip FFT, FIR filtering, and calibration tables without external memory. Per the datasheet, the 5V-tolerant I/Os on a 3.3V process let the part accept 0-5V sensor signals directly through resistive dividers, simplifying analog front-end design.
Recommended
Digital Audio Effects and Equalizers
Consumer and prosumer audio electronics - karaoke mixers, parametric equalizers, digital crossovers - historically used the DSP56858FVE for its low-cost DSP capability with enough MIPS for biquad cascade equalizers and basic reverb. Per the NXP datasheet, the part's 120 MIPS performs roughly 30-60 simultaneous biquad filter sections, sufficient for 8-band parametric EQ on stereo at 48 kHz. The dual ESSI ports stream I2S audio between codecs while the CPU runs the DSP filter graph. Modern alternatives now exist in the NXP 56F8xxx line, but installed equipment often continues to use this part.
Recommended
Recommended Products Summary
Engineering reference data for DSP56858FVE — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSP56852VF120 | DSP56F805FV80E | DSPB56721AF |
|---|---|---|---|---|
| Brand | NXP Semiconductors (formerly Freescale) | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 144-pin LQFP (FVE) | 144-pin LQFP | 144-pin LQFP | 144-pin LQFP |
| Core Architecture | 16-bit DSP56800E hybrid controller | 16-bit DSP56800E hybrid controller | 16-bit DSP56800E hybrid controller | 16-bit DSPB5672x dual-core |
| Operating Frequency | 120 MHz | 120 MHz | 80 MHz | 150 MHz |
| MIPS | 120 MIPS | 120 MIPS | 80 MIPS | 150 MIPS |
| Supply Voltage | 1.8 V core / 3.3 V I/O | 1.8 V core / 3.3 V I/O | 1.8 V core / 3.3 V I/O | 1.8 V core / 3.3 V I/O |
Key Differentiators
- Highest MIPS available in the 144-LQFP DSP5685x family (vs DSP56F805FV80E)
- Largest on-chip data SRAM in the family (vs DSP56852VF120)
- Six independent DMA channels (vs DSP56852VF120)
Design Notes
Per the NXP datasheet, the DSP56858FVE requires two independent supply rails - 1.8V for the DSP core and 3.3V for I/O. Use a low-dropout regulator with sub-50 mV ripple on each rail; core-rail droop during heavy MAC bursts causes instruction-fetch corruption. Place 100 nF X7R ceramics on every VDD pin, with one bulk 10 uF tantalum per rail at the PCB entry point. Power sequencing order: bring 3.3V I/O up first (or simultaneously) before the 1.8V core, otherwise latch-up can occur in the I/O pads. Estimated core current at 120 MHz full utilization: 60-80 mA; I/O current scales with GPIO toggle rate and loading (typical 20-40 mA).
Route all DSP56858FVE external-memory signals (address bus, data bus, chip selects) with matched lengths within the same bus group to avoid skew. Per datasheet timing, hold-and-setup margins shrink to 5-8 ns at 120 MHz; trace-length mismatch over 25 mm will violate timing. Place external SRAM/ROM within 50 mm of the LQFP-144 to keep stubs short and reflections below 5%. Add 33 ohm series damping on each data line for SDRAM interfacing. The DSP56858FVE's 5V-tolerant I/O pins can be configured in groups - consult the datasheet's GPIO multiplexing table for alternate-function conflicts.
Because the DSP56858FVE is marked No Longer Manufactured by NXP, do not start a new design around it unless your application must match existing firmware/hardware revision requirements. Verify last-time-buy dates with NXP before committing. The on-chip 1K x 16-bit boot ROM is sufficient only for serial-bootloader code - design external flash into the prototype to allow in-field firmware updates, since replacement 56858 parts in the supply chain will shrink over time. Also note that the part number suffix "FVE" denotes the 144-LQFP package; alternate suffixes denote different packages - do not assume cross-package compatibility.
Compliance Information
RoHS, REACH, lead-free, and halogen-free statuses are not explicitly stated in the provided web sources and could not be verified [DATA_NEEDED]. NXP legacy part lifecycle complicates compliance attestation - request a current compliance declaration from the distributor before placing volume orders.
