NXP Semiconductors DSP56301PW100

Overview

DSP56301PW100 from Freescale Semiconductor is a 24-bit programmable digital signal processor with DSP56300 core architecture, delivering 100 MIPS at 100 MHz internal clock, 3.3 V supply, and integrated 6-channel DMA, PLL, OnCE™ emulation, and JTAG TAP. It executes position-independent code with nested DO loops and fast auto-return interrupts in videoconferencing and cellular telephony baseband processing.

For engineers reviewing the DSP56301PW100 datasheet, DSP56301PW100 pinout, DSP56301PW100 application, or DSP56301PW100 equivalent, key selection factors include its 100 MHz operation speed, 24-bit data/program bus width, on-chip instruction cache configurability, triple timer module, and PCI Rev. 2.1–compliant HI32 host interface.

Technical Context

The DSP56301PW100 implements a fully pipelined 24×24-bit MAC with dual 56-bit accumulators and a 56-bit barrel shifter, supporting both 24-bit and 16-bit arithmetic under software control. Its memory subsystem includes configurable on-chip RAM (up to 4096×24-bit program RAM) and instruction cache (up to 1024×24-bit), managed via address generation unit and external bus interface.

It integrates six-channel concurrent DMA, triple timer, two ESSI ports, SCI with baud rate generator, and a 32-bit PCI/Universal Host Interface (HI32) compliant with PCI Rev. 2.1 - all operating without external glue logic. Power management includes Wait/Stop modes and DC-static operation down to 0 Hz.

Key Specifications

Pinout & Package

PW100 denotes a 100-pin LQFP (Low-Profile Quad Flat Package), 14 mm × 14 mm, 0.5 mm pitch, thermally enhanced with exposed pad. Pinout validated per DSP56301 Technical Data (Order Number DSP56301).

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADSP-2181KS-133 and TMS320C549PGE, the DSP56301PW100 uniquely combines 100 MHz 24-bit fixed-point performance, integrated PCI host interface, dual ESSI, and configurable instruction cache - enabling single-chip baseband or multimedia processing without external glue logic or co-processors.

Availability

DSP56301PW100 is available at Aetrix Electronics and suitable for videoconferencing terminals, cellular baseband subsystems, and industrial voice recognition systems requiring stable component supply across extended production lifecycles.

Supply support for DSP56301PW100 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 was a leading designer of embedded processors, analog, and connectivity solutions, later acquired by NXP Semiconductors in 2015.

The DSP56300 family, including the DSP56301PW100, was engineered for high-throughput, low-latency digital signal processing in wireless infrastructure, telecom gateways, and multimedia endpoints - emphasizing on-chip integration, power efficiency, and host interface readiness.

FAQ

What is the maximum operating frequency and voltage range for the DSP56301PW100?

The DSP56301PW100 operates at a maximum internal clock frequency of 100 MHz with a supply voltage range of 3.0–3.6 V, specified at 3.3 V nominal. Its fully static CMOS design allows operation down to 0 Hz (DC), supporting ultra-low-power Stop mode with full register and RAM retention. All timing parameters in the DSP56301 Technical Data sheet are validated at 3.3 V and 100 MHz.

Does the DSP56301PW100 support PCI bus interfacing without external logic?

Yes, the DSP56301PW100 integrates a 32-bit Universal Host Interface (HI32) compliant with PCI Revision 2.1, enabling direct connection to standard PCI slots without external bridge chips or address latches. The HI32 handles burst transfers, arbitration, and configuration space access autonomously, as confirmed in the DSP56301 User's Manual (DSP56301UM).

How is on-chip memory configured on the DSP56301PW100?

The DSP56301PW100 supports four programmable memory configurations via mode pins: e.g., 4096×24-bit program RAM with cache disabled, or 3072×24-bit program RAM plus 1024×24-bit instruction cache. X and Y data RAM sizes also scale accordingly (2048×24-bit or 3072×24-bit). Configuration is static at reset and documented in the DSP56301 Technical Data.

What debug and emulation capabilities does the DSP56301PW100 provide?

The DSP56301PW100 includes an On-Chip Emulation (OnCE™) module and JTAG Test Access Port (TAP) supporting real-time debugging, breakpoint insertion, and address tracing. Its address tracing mode mirrors internal bus accesses on external pins, enabling logic analyzer-based trace capture - a capability verified in the DSP56301PB Product Brief Rev. 2.

Can the DSP56301PW100 operate in low-power modes, and what states are retained?

Yes, the DSP56301PW100 supports Wait and Stop low-power modes. In Wait mode, clocks to peripherals are gated but core registers and on-chip RAM remain powered and intact. In Stop mode, only the real-time clock and wake-up logic remain active, with current draw below 100 µA while retaining full register and RAM contents - as specified in the DSP56301 Technical Data.