DSP56F801FA80E - 16-bit 80MHz DSC 16KB Flash | NXP
MPN: DSP56F801FA80E ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.85 | $9.85 |
| 10 | $8.92 | $89.20 |
| 100 | $7.94 | $794.00 |
| 500 | $7.15 | $3,575.00 |
| 1,000 | $6.48 | $6,480.00 |
DSP56F801FA80E Overview
A Digital Signal Controller is a hybrid semiconductor that combines the multiply-accumulate throughput of a digital signal processor (DSP) with the peripheral set, interrupt structure and control-loop ease of use of a microcontroller (MCU). Within the power-management semiconductor hierarchy, the DSC sits between a general-purpose MCU and a dedicated DSP, making it the natural choice for closed-loop real-time control systems such as motor drives and power conversion stages.
Key features of the DSP56F801FA80E include the Harvard-style 56800 architecture executing DSP and MCU code from a unified, C-efficient instruction set, 40 MIPS peak performance at 80 MHz, 16KB program Flash, and 5-volt tolerant TTL-compatible digital inputs fabricated on a 3.3V CMOS process. According to the NXP DSP56F801 datasheet, 5-volt tolerant I/O can withstand up to 5.5V without damage, simplifying interfacing with legacy 5V logic.
Architecturally, the 56800 core uses separate program and data buses (Harvard style) with dual Harvard-style address generation, hardware MAC units and bit-manipulation instructions, enabling single-cycle multiply-accumulate operations required by control loops such as field-oriented motor control and digital power conversion. The Flash program memory allows field reprogramming without external memory.
Typical applications identified by NXP include servo and motor control, power inverters, and converter applications, where deterministic interrupt latency and fast control-loop execution are critical. Consumer and industrial real-time signal processing tasks also fit the device well.
A key design consideration is lifecycle: NXP lists the DSP56F801FA80E as End of Life on its product page, so new designs should evaluate drop-in family alternatives such as the DSP56F801FA60E or the newer 56F8xxx MC56F83xxx devices in the same 48-LQFP footprint before committing to layout.
This page synthesizes distributor pricing, verified lifecycle data, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing engineers with a single citable reference for sourcing and redesign decisions.
Drop-in alternatives for DSP56F801FA80E — 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 DSP56F801FA80E (same form factor and footprint) — differing in Package, Core, Core Architecture, Thermal Resistance Theta-JA, Typical Applications.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
DSP56F801FA60E
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$7.95 / Unit
View Datasheet →DSP56F801FA80
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSP56F802FA80E
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
DSP56F803FA80E
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MC56F8322VFAER2
✅ Drop-In📋 Reference alternative (not in catalog)
DSP56F801FA80E Specifications
| Core | 56800 (56F8xx) |
| Core Size | 16-Bit |
| Core Frequency | 80 MHz |
| Performance | Up to 40 MIPS at 80 MHz |
| Program Flash Memory | 16KB (8K x 16) |
| Architecture | Harvard-style, unified C-efficient DSP/MCU instruction set |
| I/O Tolerance | 5V tolerant TTL-compatible digital inputs (up to 5.5V) |
| Process Technology | High-density CMOS, 3.3V compatible process |
| Package | 48-LQFP (7x7 mm) |
| Mounting Type | Surface Mount |
| Thermal Resistance Theta-JA | Simulated per JEDEC JESD51-2, natural convection horizontal configuration |
| Typical Applications | Servo and motor control, power inverters, converters |
| Lifecycle Status | End of Life (per NXP product page) |
DSP56F801FA80E 48-lqfp (7x7 mm) Pin Configuration Guide
Pin configuration for DSP56F801FA80E (48-lqfp (7x7 mm) package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for DSP56F801FA80E.
Refer to the datasheet for full pin configuration.
Typical Applications
DSP56F801FA80E is suitable for 6 applications: Servo and Motor Control, Power Inverters, Power Converters (AC/DC, DC/DC), Industrial Automation and Factory Control, Digital Power Supplies with PFC, Real-Time Signal Processing in Consumer Systems.
Servo and Motor Control
The DSP56F801FA80E is the flagship application fit identified by NXP: servo and motor control. Its 56800 core executes single-cycle multiply-accumulate instructions at up to 40 MIPS (80 MHz), which is sufficient for field-oriented control (FOC) current loops running at 10-20 kHz update rates while the MCU-style firmware handles position loops and communication. The unified C-efficient architecture means one toolchain covers both DSP filter mathematics and MCU control logic, reducing development time versus split MCU+DSP designs. The 16KB on-chip Flash stores control firmware with field-update capability, and 5V-tolerant I/O interfaces directly with legacy gate-driver and encoder logic without level shifters. Its 48-LQFP (7x7 mm) footprint fits compact drive boards.
Recommended
Power Inverters
In power inverter applications, the DSP56F801FA80E generates PWM gate-drive timing and executes closed-loop voltage/frequency regulation. The 80 MHz core clock gives 12.5 ns instruction cycle time, allowing high-resolution PWM carrier frequencies with synchronous sampling of DC-link and output feedback. NXP explicitly lists power inverter control as a target application in its product overview for the 56F801 family. The Harvard-style architecture keeps interrupt-driven control-loop latency deterministic, which is essential for protecting power stages during fault transients. Designers should budget the 16KB Flash carefully - modern SVPWM implementations with space-vector modulation tables, PI controllers, and fault handlers typically fit but leave limited headroom for additional protocol stacks.
Recommended
Power Converters (AC/DC, DC/DC)
For power converter control, the DSP56F801FA80E implements digital compensation networks, peak-current-mode loops, and power-factor-correction stages in firmware. The 56800 core's hardware MAC and hardware loop instructions execute biquad IIR filters and PI compensation at sample rates of tens of kilohertz with deterministic latency, per the DSP56F801 datasheet performance figures (40 MIPS at 80 MHz). On-chip Flash supports field firmware updates to retune converters without hardware changes, valuable in certification-regulated power products. The 5V-tolerant I/O (rated to 5.5V) connects directly to optocoupler and gate-driver outputs common in isolated converter feedback paths. The 48-LQFP (7x7 mm) surface-mount package suits dense power-supply control boards with thermal vias under the exposed geometry.
Recommended
Industrial Automation and Factory Control
Industrial automation nodes use the DSP56F801FA80E where deterministic real-time signal processing meets general control tasks: conveyors with servo axes, pump and fan drives, and closed-loop process actuators. The part's dual DSP/MCU nature lets one chip run sensor filtering (moving-average, FIR) while servicing serial communication and sequencing logic typical of factory equipment. The 40 MIPS budget at 80 MHz provides margin over the 30 MIPS FA60E grade for combined control and communication workloads. Per NXP, the 56800 family was designed as an extremely cost-effective single-chip solution for these industrial applications, with the 48-LQFP package fitting standard SMT assembly lines. Note the EOL status: use for sustaining existing factory designs, not new programs.
Recommended
Digital Power Supplies with PFC
Switch-mode power supplies with active power-factor correction benefit from the DSP56F801FA80E's ability to run the fast inner current loop (sampled at switching frequency, typically 50-100 kHz) while a slower outer voltage loop handles regulation and protection. The 80 MHz core gives 12.5 ns cycle time, so a PI current-law computation plus PWM duty update fits well within one switching period at 40 MIPS. The datasheet's 5V-tolerant I/O specification simplifies interface to conventional PWM comparators and shunt-amplifier outputs. Firmware stored in the 16KB Flash permits tuning of compensation coefficients during production calibration. Thermal performance follows the JEDEC JESD51-2 simulated Theta-JA conditions documented in the datasheet, so control-board copper area should be sized accordingly.
Recommended
Real-Time Signal Processing in Consumer Systems
The DSP56F801FA80E serves consumer real-time signal processing tasks - audio filtering, sensor conditioning, adaptive control in appliances - where a dedicated DSP is too costly and an MCU lacks multiply-accumulate throughput. Its 56800 core performs single-cycle MACs at 40 MIPS, enabling FIR/IIR filtering and FFT-based analysis at audio rates while co-handling system supervision in the same unified instruction stream. The 16KB Flash suits fixed-function consumer firmware, and the 3.3V CMOS process with 5V-tolerant inputs bridges to legacy 5V subsystems found in cost-driven consumer boards. The compact 48-LQFP (7x7 mm) surface-mount package supports two-layer layouts, keeping BOM cost minimal. For new consumer designs, evaluate the actively supported MC56F8xxx family given this part's EOL status.
Recommended
Recommended Products Summary
Engineering reference data for DSP56F801FA80E — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | DSP56F801FA60E | DSP56F801FA80 | DSP56F802FA80E | DSP56F803FA80E | MC56F8322VFAER2 |
|---|---|---|---|---|---|---|
| Package | 48-LQFP (7x7 mm) | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same | 48-LQFP (7x7 mm) - same |
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Core | 56800 | 56800 | 56800 | 56800 | 56800 | 56800E |
| Core Frequency | 80 MHz | 60 MHz | 80 MHz | 80 MHz | 80 MHz | 60 MHz |
| Lifecycle Status | End of Life | End of Life | End of Life | End of Life | End of Life | Active |
| Primary Applications | Servo/motor control, inverters, converters | Servo/motor control, inverters, converters | Servo/motor control, inverters, converters | Motor control family variant | Motor control family variant | Digital power conversion, motor control |
Key Differentiators
- Highest speed grade in the 56F801 family (vs DSP56F801FA60E)
- Unified DSP+MCU architecture in a single chip (vs MC56F8322VFAER2)
- 5V-tolerant I/O on a 3.3V process (vs DSP56F801FA60E)
Design Notes
Lifecycle risk is the dominant concern: NXP lists the DSP56F801FA80E as End of Life with a published discontinuance/replacement Product Change Notice. Before committing to this part in any build, secure a last-time-buy quantity or qualify a drop-in alternative (DSP56F801FA60E for identical pinout, MC56F8322VFAER2 for an active-lifecycle path requiring firmware migration). Beware broker-supplied stock on EOL parts - verify date codes and require authorized-channel or Rochester Electronics sourcing to avoid counterfeit silicon.
The device is fabricated on a 3.3V-compatible CMOS process; digital inputs are TTL-compatible and 5V tolerant to 5.5V per the NXP datasheet, allowing direct connection to legacy 5V gate-driver and encoder outputs. However, 5V tolerance applies only to digital I/O - do not apply 5V to analog or supply pins. Verify the exact supply-voltage rails and decoupling network against the datasheet electrical characteristics chapter, which was not fully captured in the data available for this page ([DATA_NEEDED] marker on supply voltage).
The 48-LQFP (7x7 mm) Theta-JA was simulated by NXP per JEDEC JESD51-2 in horizontal natural-convection conditions, per the datasheet. This means real-world thermal resistance depends strongly on your PCB copper area and airflow - a JEDEC-simulated Theta-JA cannot be transferred directly to a small control board without correction. For motor-drive and inverter control boards, provide at least 2 oz copper ground pour connected to thermal vias around the package, and confirm junction temperature margin using the datasheet power-consumption tables at your actual core frequency (80 MHz worst case).
Compliance Information
Compliance data was not present in the verified web data; the E suffix in the part number indicates an extended temperature/lead-free grade historically, but RoHS/REACH status must be confirmed on the NXP product page's Environmental Quality section before procurement.
