NXP Semiconductors DSP56311VL150R2

Overview

DSP56311VL150R2 from Freescale Semiconductor is a 24-bit fixed-point digital signal processor (DSP) with a 150 MHz core clock, 1.8 V core supply, and 3.3 V I/O. It integrates an Enhanced Filter Coprocessor (EFCOP), six-channel DMA, dual 48 K × 24-bit data RAM banks, 32 K × 24-bit program RAM, and 1024 × 24-bit instruction cache. It targets echo cancellation and multi-channel filtering in wireless infrastructure.

For engineers reviewing the DSP56311VL150R2 datasheet, DSP56311VL150R2 pinout, DSP56311VL150R2 application, or DSP56311VL150R2 equivalent, key selection criteria include EFCOP-accelerated FIR/IIR throughput, 150 MHz real-time MAC performance, MAP-BGA-256 package compatibility, and support for glueless DRAM/SRAM expansion up to 256 K words.

Technical Context

The DSP56311VL150R2 implements a fully pipelined 24 × 24-bit MAC with two 56-bit accumulators and a 56-bit barrel shifter, executing one instruction per clock cycle. Its EFCOP operates in parallel at full 150 MHz, supporting real/complex FIR, DF1/DFII IIR, adaptive LMS filters, and 4× decimation - all with dedicated 24-bit datapath and shared 10 K × 24-bit memory.

It features a six-channel DMA controller supporting 1D/2D/3D transfers and circular buffering, programmable memory mapping via MSW0/MSW1 bits, and asynchronous bus arbitration (ABE bit) for operation above 100 MHz. The PLL supports skew-eliminated clock output and dynamic divide factor adjustment without loss of lock.

Key Specifications

Pinout & Package

Molded Array Plastic Ball Grid Array (MAP-BGA) package with 256 balls, lead-free compliant, 17 mm × 17 mm footprint, 1.27 mm pitch. Pinout defined across functional ports: Port A (external memory interface), Port B (HI08/host interface), Ports C/D (dual ESSI), Port E (SCI), plus PLL, JTAG/OnCE, and interrupt/control signals.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital signal processing applications.

Compared with ADSP-21161NKCAZ-150 and TMS320C6713BZDHA, the DSP56311VL150R2 delivers uniquely optimized fixed-point filtering throughput per watt via its parallel EFCOP, deterministic 150 MHz MAC timing, and memory architecture tailored for telecom channel density - making it irreplaceable in echo-cancellation–centric infrastructure designs.

Availability

DSP56311VL150R2 is available at Aetrix Electronics and suitable for wireless infrastructure, VoIP gateway development, and DSL modem production requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for DSP56311VL150R2 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Freescale Semiconductor (now part of NXP Semiconductors) designed high-performance, low-power DSPs for real-time signal processing in communications infrastructure.

The DSP56311VL150R2 belongs to the DSP56300 family - engineered specifically for telecom and networking applications demanding deterministic filtering, large on-chip memory, and glueless peripheral integration.

FAQ

What is the maximum operating frequency of the DSP56311VL150R2 core?

The DSP56311VL150R2 operates with an internal 150 MHz clock, delivering up to 150 million multiply-accumulates per second (MMACS) in core-only mode. When the Enhanced Filter Coprocessor (EFCOP) is active, aggregate throughput reaches 300 MMACS due to parallel execution. This frequency is sustained under 1.8 V core supply with proper thermal management and decoupling.

Does the DSP56311VL150R2 support external DRAM, and what are the limitations?

Yes, the DSP56311VL150R2 includes an integrated DRAM controller supporting glueless interface to DRAM devices up to 100 MHz. DRAM access is not supported above 100 MHz - signals like RAS[0–3], CAS, and BCLK become unusable externally beyond that frequency. For >100 MHz operation, only SRAM or flash via the external memory expansion port is recommended.

How does the EFCOP in the DSP56311VL150R2 accelerate filtering tasks?

The EFCOP in the DSP56311VL150R2 is a dedicated 24 × 24-bit filter engine running in parallel with the main DSP core at full 150 MHz. It supports real/complex FIR, DF1/DFII IIR, adaptive LMS, and 4× decimation - all using shared 10 K × 24-bit memory. This offloads compute-intensive filtering, preserving core cycles for control, protocol stack, and I/O management.

What package type and pin count does the DSP56311VL150R2 use?

The DSP56311VL150R2 uses a Molded Array Plastic Ball Grid Array (MAP-BGA) package with 256 balls, 17 mm × 17 mm body size, and 1.27 mm ball pitch. It is lead-free compliant and mechanically documented in Freescale's DSP56311 Technical Data Rev. 8, Chapter 3. Thermal pad exposure and solder mask specifications follow JEDEC MO-251 standards.

Can the DSP56311VL150R2 execute code from external memory, and how is boot configured?

Yes, the DSP56311VL150R2 supports booting from external memory via its Port A interface. Boot mode is determined by MODA–MODD pin states at reset - selecting between internal ROM, external program memory, or hybrid configurations. The 192 × 24-bit bootstrap ROM contains initialization code and supports secure boot sequences for field-programmable applications.