NXP Semiconductors DSP56311VF150R2

Overview

DSP56311VF150R2 from Freescale Semiconductor is a 24-bit fixed-point digital signal processor (DSP) with an integrated Enhanced Filter Coprocessor (EFCOP), operating at 150 MHz core clock, delivering up to 300 MMACS in filtering tasks, featuring 128 K × 24-bit on-chip RAM (configurable as 32 K program RAM + 1024-word instruction cache + 48 K X/Y data RAM), and supporting wireless infrastructure and echo-cancellation applications.

For engineers reviewing the DSP56311VF150R2 datasheet, DSP56311VF150R2 pinout, DSP56311VF150R2 application, or DSP56311VF150R2 equivalent, key selection criteria include EFCOP-accelerated FIR/IIR filter throughput, 1.8 V core / 3.3 V I/O power domains, MAP-BGA-256 package compatibility, and support for glueless DRAM/SRAM expansion up to 256 K words.

Technical Context

The DSP56311VF150R2 implements a fully pipelined DSP56300 core with 24 × 24-bit MAC, dual 56-bit accumulators, and 56-bit barrel shifter, executing one instruction per clock cycle and maintaining object-code compatibility with the DSP56000 architecture. Its six-channel DMA supports 1D/2D/3D transfers with circular buffering and peripheral-triggered transfers.

The EFCOP operates in parallel with the core at full 150 MHz, supporting real/complex FIR, DF-I/DF-II IIR, adaptive LMS filters, and 4-bit decimation - all with dedicated 24 × 24-bit datapath and independent memory access. Internal peripherals include HI08 host interface, dual ESSI ports (6-channel audio capable), SCI, triple timer, and JTAG/OnCE™ debug interface.

Key Specifications

Pinout & Package

Molded Array Plastic Ball Grid Array (MAP-BGA) package with 256 balls, RoHS-compliant lead-free finish, 17 mm × 17 mm body, 1.0 mm ball pitch.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADSP-21161NKCAZ-150 and TMS320C6713BZDPA200, the DSP56311VF150R2 uniquely combines fixed-point efficiency, on-chip EFCOP acceleration, and 128 K × 24-bit RAM in a single 17 mm × 17 mm BGA - making it optimal for cost-sensitive, high-channel-density telecom edge nodes where deterministic filter latency matters.

Availability

DSP56311VF150R2 is available at Aetrix Electronics and suitable for wireless infrastructure, VoIP gateway, and DSLAM applications requiring stable component supply, long-lifecycle support, and traceable sourcing for industrial deployment.

Supply support for DSP56311VF150R2 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 embedded processors for automotive, industrial, and communications markets before its 2015 acquisition.

The DSP56311VF150R2 belongs to the DSP56300 family - engineered specifically for network infrastructure requiring deterministic real-time filtering, large on-chip memory, and glueless memory expansion in compact BGA packages.

FAQ

What is the maximum operating frequency and power supply configuration for the DSP56311VF150R2?

The DSP56311VF150R2 operates at a maximum internal core frequency of 150 MHz, derived from an external 1–100 MHz crystal or clock applied to EXTAL. It requires separate 1.8 V for the core logic (VCCQL) and 3.3 V for all I/O domains (VCCQH, VCCA, VCCD, VCCC, VCCH, VCCS). The PLL generates the internal 150 MHz clock, and PCAP must be connected to a stable external capacitor for lock stability. This dual-voltage scheme minimizes dynamic power while maintaining interface compatibility with 3.3 V peripherals.

How does the Enhanced Filter Coprocessor (EFCOP) in the DSP56311VF150R2 improve filtering performance?

The EFCOP in the DSP56311VF150R2 executes FIR, IIR, and adaptive LMS filtering algorithms in parallel with the main DSP core - enabling true 300 MMACS throughput without stalling the core pipeline. It features a dedicated 24 × 24-bit datapath, independent memory access to shared RAM, and hardware support for decimation, complex arithmetic, and coefficient update scheduling. This allows the DSP56311VF150R2 to sustain real-time echo cancellation across 16+ voice channels while the core handles protocol stack and memory management.

What memory configurations are supported by the DSP56311VF150R2, and how are they selected?

The DSP56311VF150R2 provides 128 K × 24-bit on-chip RAM, partitioned dynamically via MSW1/MSW0 bits in the memory switch register. Configurations include: (1) 32 K program RAM + 1024-word instruction cache + 48 K X/Y RAM; (2) 95 K program RAM + cache + 16 K X/Y RAM; (3) 63 K program RAM + cache + 32 K X/Y RAM; and others. These modes let designers optimize for instruction cache hit rate (e.g., FFT kernels) or data buffer depth (e.g., long echo tails), all without external memory access penalties.

Does the DSP56311VF150R2 support external memory expansion, and what interfaces are available?

Yes, the DSP56311VF150R2 supports glueless expansion via its Port A interface: one 256 K × 24-bit program space and two 256 K × 24-bit data spaces using A[0–17], D[0–23], RD/WR, and AA[0–3]/RAS[0–3]. It integrates a DRAM controller supporting SDRAM up to 100 MHz, plus chip-select logic for SRAM. External access uses programmable wait states (via BCR) and optional TA handshake for variable-latency devices - enabling direct connection to commodity memory without address latches or glue logic.

What debug and development interfaces are integrated into the DSP56311VF150R2?

The DSP56311VF150R2 integrates JTAG Test Access Port (TAP) and OnCE™ (On-Chip Emulation) module for non-intrusive real-time debugging. OnCE™ supports breakpoints, watchpoints, register/memory inspection, and trace via the JTAG port - eliminating need for ICE pods. The device also includes a bootstrap ROM for initial code loading and supports serial boot from SCI or parallel boot via HI08. These capabilities enable rapid firmware validation for telecom DSP applications without modifying target hardware.