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  2. Processors and Microcontrollers
  3. Processors and DSP
  4. ADSP-21xx Fixed-Point DSPs
  5. ADSP-2187L


Features and Benefits

  • 19 ns Instruction Cycle Time @ 3.3 Volts, 52 MIPS Sustained Performance
  • ADSP-2100 Family Code Compatible, with Instruction Set Extensions
  • 160K Bytes of On-Chip RAM, Configured as 32K Words Program Memory RAM and 32K Words Data Memory RAM
  • Dual Purpose Program Memory for InstructionÊ and Data Storage
  • Single-Cycle Instruction Execution
  • 16-Bit Internal DMA Port for High Speed Access to On-Chip Memory (Mode Selectable)
  • 4 MByte Memory Interface for Storage of Data Tables and Program Overlays (Mode Selectable)
  • 8-Bit DMA to Byte Memory for Transparent Program and Data Memory Transfers (Mode Selectable)

Product Details

The ADSP-2187L is a single-chip, 3.3V microcomputer optimized for digital signal processing (DSP) and other high speed numeric processing applications.

The ADSP-2187L combines the ADSP-21xx family base architecture (three computational units, data address generators and a program sequencer) with two high-speed serial ports, a 16-bit internal DMA port, a byte DMA port, a programmable timer, Flag I/O, extensive interrupt capabilities, and on-chip program and data memory.

The ADSP-2187L integrates 160K bytes of on-chip memory configured as 32Kx24 of Program RAM and 32Kx16 of data RAM. Five power-down modes are also provided to meet the needs of battery operated portable equipment.

In addition, the ADSP-2187L supports instructions new to the 218x family which include bit manipulation (bit set, bit clear, bit toggle, bit test) new ALU constants, a new multiplication instruction (x squared), biased rounding, result free ALU operations, I/O memory transfers, and global interrupt masking, for increased flexibility.

Fabricated in an 0.35 micron process, the ADSP-2187L operates with a 19 ns instruction cycle time. Every instruction executes in a single cycle; in addition, multiple operations can be performed in parallel.

In one processor cycle all members of the 21xx family can:

  1. Perform an arithmetic computation
  2. Perform a data read from Data Memory
  3. Perform a data read from Program Memory
  4. Update a memory pointer
  5. Update another memory pointer
  6. Check a circular buffer boundary
  7. Generate the next program address
  8. Fetch the next instruction

The ADSP-2187L is available in a 100-pin LQFP package and is pin compatible with previous members of the 218x family.

Product Lifecycle icon-not-recommended Not Recommended for New Designs

This designates products ADI does not recommend broadly for new designs.

Documentation & Resources

  • View All (69)
  • Data Sheets (1)
  • Application Notes (57)
  • Processor Manuals (4)
  • Software Manuals (5)
  • Integrated Circuit Anomalies (1)
  • Legacy Emulator Manuals (1)
  • Application Notes
    Software Manuals

    Software & Systems Requirements

    Design Resources

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    Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
    ADSP-2187LBSTZ-210 Material Declaration Reliability Data 100-Lead LQFP (14mm x 14mm)
    Wafer Fabrication Data

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