dspblok 21489-100-ETH - Analog Devices ADSP-21489-100 SHARC DSP Module

*The dspblok 21489-100-ETH is available on a strict allocation basis to our legacy customers to support existing designs. New designs should consider the dspblok 21565-ETH.* 

The dspblok™ 21489-100+Ethernet is a highly integrated DSP module that incorporates an Analog Devices’ ADSP-21489 SHARC DSP operating at 400 MHz, flash, EEProm, and a switching power supply to support the core voltage requirements. All the connections are brought out to standard 2mm dual row header footprints. The board is only 60mm x 60mm (2.36" x 2.36"). The dspblok 21489-100+Ethernet also includes a Microchip ATMega32U4 which functions as full-speed USB transceiver as well as additional GPIO. You can use the USB to upload DSP code via Danville's dspBootloader™.

The dspblok 21489-100+Ethernet includes a WIZnet W5100 Ethernet transceiver operating at 100Mb/s. Each module has a unique MAC address preassigned. The transceiver manages the TCP/IP stack so that the DSP is largely unburdened. You just add magnetics and a connector. Since the magnetics are external, you can also create Power over Ethernet (POE) targets for smart sensor applications.

The dspblok 21489-100+Ethernet replaces our dspblok 21489+Ethernet. The main difference is that the ethernet transceiver and USB interface has changed.  We recommend using this module as a quick migration target and then moving to the dspblok 21565+Ethernet as a more long term solution.

You can connect to an Analog Devices ICE using a Danville JTAG Adapter. Analog Devices has two development packages available: CrossCore Embedded Studio or Visual DSP++. 


Key Components:

  • Analog Devices ADSP-21489 (100 pin)
  • Adesto AT25SF161 16Mb Serial Flash
  • Microchip 25AA02E48 Serial EEProm with MAC Address
  • WIZNet W5100S-L Ethernet Transceiver
  • Microchip ATMega32U4

Exposed I/O (3.3V):

  • DAI 20-DAI 1
  • DPI 14-DPI 7, DPI 4, DPI 3-DPI 1  (Assigned as SCK, MISO, & MOSI)
  • FLG3 - FLG0, RESET# (Open Drain)
  • 32U4 I/O including ADCs, GPIO, I2C, UART


  • 60mm x 60mm
  • Height: 4mm above PCB, 2mm + 4.3mm (mating header) below PCB
  • PCB Thickness: 1.6mm


  • Dual Row 2mm Headers

Power Requirements:

  • 3.3V-400mA, Largely dependent on core clock, operating temperature and computational load.
Additional Resources pdf

dspblok 21489-100-ETH Step File

Ordering Information:


dspblok 21489-100-ETH


Dev Board


400 MHz


Power Supply & Breakout Connectors

Part Number:

P/N: A.08489D-100-ETH

P/N: A.08153

P/N A.08102