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

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

The dspblok™ 21489-100 is a highly integrated DSP module that incorporates an Analog Devices’ ADSP-21489-100 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 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 is a low-cost version of our fourth generation SHARC based products. It is largely software and hardware compatible with other fourth-generation dspbloks engines such as our dspblok 21489 and dspblok 21469.  We recommend using this module as a quick migration target and then moving to the dspblok 21565 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
  • 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 Step File

Ordering Information:


dspblok 21489-100


Dev Board


400 MHz


Power Supply & Breakout Connectors

Part Number:

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

P/N: A.08153

P/N A.08102