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Analog Devices Inc. ADSP-2187NKSTZ-320
- Part No.:
- ADSP-2187NKSTZ-320
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 100-LQFP
- Datasheet:
-
ADSP-2187NKSTZ-320.pdf
- Description:
- IC DSP CONTROLLER 16BIT 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,006
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Product details
Overview
ADSP-2187NKSTZ-320 from Analog Devices is a 12.5 ns instruction cycle, 80 MIPS fixed-point DSP microcomputer with 32K words (24-bit) program RAM and 32K words (16-bit) data RAM, featuring dual serial ports, 16-bit internal DMA port, and programmable 16-bit interval timer - deployed in real-time audio processing, telecom channel banks, and industrial motor control systems.
For engineers reviewing the ADSP-2187NKSTZ-320 datasheet, ADSP-2187NKSTZ-320 pinout, ADSP-2187NKSTZ-320 application, or ADSP-2187NKSTZ-320 equivalent, key selection criteria include on-chip memory configuration (32K/32K), LQFP-100 package compatibility, 1.8 V core voltage operation, and ICE-Port™ debug interface support for in-system validation.
Technical Context
The ADSP-2187NKSTZ-320 implements the ADSP-2100 base architecture with three independent computational units (ALU, MAC, shifter), two dedicated data address generators (DAG1/DAG2), and a zero-overhead program sequencer supporting conditional jumps and subroutine calls in one cycle. It executes all instructions-including multifunction moves with computation-in a single 12.5 ns cycle.
Its memory subsystem supports full memory mode with shared external address/data buses, byte DMA for EPROM booting, and 16-bit internal DMA for high-speed host access to on-chip RAM. Serial ports SPORT0 and SPORT1 provide hardware companding (A-law/μ-law), frame-synchronized I/O, and multichannel TDM support up to 32-word streams.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Instruction Cycle Time | 12.5 ns @ 1.8 V core - enables 80 MIPS sustained throughput without pipeline stalls. |
| Program Memory | 32K words × 24-bit SRAM - stores both instructions and constants; supports dual-operand fetch per cycle. |
| Data Memory | 32K words × 16-bit SRAM - optimized for circular buffer addressing via DAG auto-modify registers. |
| Serial Ports | Two double-buffered SPORTs - each supports 3–16-bit word length, hardware A-law/μ-law, and independent framing. |
| Timer | 16-bit programmable interval timer with 8-bit prescaler - generates periodic interrupts with reload from TPERIOD register. |
| Power Modes | Power-down (200 CLKIN recovery), Idle, Slow Idle (IDLE(n) with n=16/32/64/128) - reduces dynamic power in portable systems. |
| Package | 100-lead LQFP (14 × 14 mm, 0.5 mm pitch) - RoHS-compliant, surface-mount compatible with standard reflow profiles. |
Pinout & Package
ADSP-2187NKSTZ-320 is housed in a 100-lead LQFP package (Pb-free, JEDEC MO-220 variant). Pin functions are defined per Analog Devices Rev. A datasheet, with dedicated buses for program/data addressing, dual serial I/O, flag signaling, and ICE-Port™ emulation interface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN | System Clock Input | Accepts 40 MHz TTL-compatible clock or crystal oscillator input; drives internal 80 MHz instruction clock. |
| PWD | Power-Down Control | Active-low hardware entry into ultra-low-power dormant state; recoverable in ≤200 CLKIN cycles. |
| SPORT0 DT0/DR0 | Serial Data Transmit/Receive | Full-duplex synchronous I/O with hardware autobuffering; supports TDM and frameless modes. |
| PF0–PF2 | Mode Configuration Pins | Determine boot method (BDMA/IDMA) and memory mode (Full/Host) during reset assertion. |
| ICE-Port™ TCK/TDO | JTAG Emulation Interface | Enables non-intrusive debugging, real-time trace, and in-circuit programming in final target systems. |
Key Features
| Feature | Design Value |
|---|---|
| Three-Bus Architecture | Enables simultaneous instruction fetch, operand load from program memory, and operand load from data memory in one cycle. |
| Dual DAG Address Generators | Each maintains four post-modified pointers with modulo length registers - eliminates software overhead for circular buffers. |
| Hardware Companding | Integrated A-law and μ-law encoding/decoding per CCITT G.711 - removes need for external codec in voice systems. |
| Programmable Wait States | Configurable 0–7 wait states per memory access - allows direct interfacing with slow peripherals (e.g., EEPROM, LCD controllers). |
| Flag I/O Flexibility | 13 programmable flags: 8 bidirectional, 3 output-only, plus SPORT1 pins repurposable as IRQ0/IRQ1/FI/FO. |
Applications
| Voice Channel Processing | Industrial Motor Control |
|---|---|
|
Use Scenario: Real-time echo cancellation and DTMF detection in VoIP gateways with analog line interfaces. IC Role / Device Role / Timing Role: Primary signal processor executing adaptive FIR filters and tone generation algorithms at 8 kHz sample rate. Use Value: On-chip 32K×24-bit program RAM stores filter coefficients and lookup tables; dual SPORTs handle simultaneous PCM stream ingress/egress. |
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase PMSM motors in HVAC compressors. IC Role / Device Role / Timing Role: Real-time execution of Park/Clarke transforms, PI current regulators, and space-vector PWM generation. Use Value: 80 MIPS throughput ensures sub-50 μs control loop latency; 16-bit internal DMA enables fast ADC result ingestion and PWM register updates. |
| Telecom Line Card | Medical Ultrasound Beamforming |
|
Use Scenario: Multi-channel TDM aggregation in E1/T1 line interface units with CAS/CCS signaling. IC Role / Device Role / Timing Role: Time-slot assignment, HDLC framing, and CRC-32 calculation across 32 DS0 channels. Use Value: SPORT0 multichannel mode handles 32-word TDM bitstream; byte DMA loads protocol stacks from external flash without CPU intervention. |
Use Scenario: Digital beam synthesis and RF envelope detection in portable ultrasound scanners. IC Role / Device Role / Timing Role: Real-time delay-and-sum beamforming on 64-channel echo data with dynamic apodization. Use Value: Dual DAGs manage independent channel buffers; MAC unit performs 40-bit accumulation for high-SNR summing without overflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar fixed-point DSP applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-2188NKSTZ-320 | 48K×24-bit program RAM + 56K×16-bit data RAM - 50% more memory than ADSP-2187NKSTZ-320. | Required for larger FFTs or multi-algorithm concurrent execution (e.g., noise reduction + compression). | Select when algorithm memory footprint exceeds 32K words program or 32K words data. |
| TMS320VC5402PGE100 | 100 MIPS @ 3.3 V core; 16K×16-bit RAM; different instruction set and peripheral mapping - not code-compatible. | Suitable for cost-sensitive consumer audio where TI's C54x toolchain and peripheral ecosystem are preferred. | Choose only if migrating legacy C54x designs; requires full firmware rewrite and PCB layout review. |
Compared with ADSP-2187NKSTZ-320, ADSP-2188NKSTZ-320 offers higher memory headroom for complex signal chains, while TMS320VC5402PGE100 provides higher raw MIPS but lacks ICE-Port™ and hardware companding - demanding trade-offs in debug capability and voice-specific feature integration.
Availability
ADSP-2187NKSTZ-320 is available at Aetrix Electronics and suitable for voice channel processing, industrial motor control, and telecom line card applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for ADSP-2187NKSTZ-320 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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with design centers worldwide.
The ADSP-218xN series was engineered for deterministic real-time signal processing in resource-constrained embedded systems - emphasizing low-latency I/O, on-chip memory efficiency, and power-aware operation for battery-powered and thermally sensitive deployments.
FAQ
What is the core supply voltage requirement for ADSP-2187NKSTZ-320?
The ADSP-2187NKSTZ-320 operates with a nominal 1.8 V ±0.1 V core supply (VDDINT) for logic and computational units. I/O banks support 1.8 V, 2.5 V, or 3.3 V operation independently, with all inputs tolerant to 3.6 V regardless of selected I/O voltage. This separation enables direct interfacing with mixed-voltage peripherals without level shifters.
Does ADSP-2187NKSTZ-320 support automatic boot from external memory?
Yes, ADSP-2187NKSTZ-320 supports automatic boot via its byte DMA (BDMA) port from byte-wide external memory such as EPROM or flash. When configured in Mode C = 0, Mode A = 0 (Table 2), it loads the first 32 program memory words from byte memory space before starting execution - enabling standalone operation without external host initialization.
How many external interrupts does ADSP-2187NKSTZ-320 support?
The ADSP-2187NKSTZ-320 supports up to six external interrupts: IRQ2 (edge- or level-sensitive), IRQL0 and IRQL1 (level-sensitive), IRQE (edge-sensitive), plus IRQ0 and IRQ1 configurable via SPORT1 pin multiplexing. All are individually maskable except the nonmaskable power-down interrupt, and prioritized per Table 3 vector addresses.
Is ADSP-2187NKSTZ-320 pin-compatible with other ADSP-218xN devices?
Yes, all ADSP-218xN series members - including ADSP-2184N, ADSP-2185N, ADSP-2186N, ADSP-2187NKSTZ-320, ADSP-2188N, and ADSP-2189N - are fully pin-compatible in both 100-lead LQFP and 144-ball BGA packages. Differentiation is solely by on-chip memory size, allowing hardware reuse across performance tiers.
What debug interface does ADSP-2187NKSTZ-320 provide?
ADSP-2187NKSTZ-320 integrates the ICE-Port™ emulator interface, a proprietary JTAG-compliant debug port supporting real-time instruction trace, breakpoint insertion, register inspection, and memory read/write during live system operation - critical for validating timing-critical signal processing in final hardware.
ADSP-2187NKSTZ-320 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- ADSP-21xx
- Package/Case:
- 100-LQFP
- Packaging:
- Tray
- Product Status:
- Active
- Type:
- Fixed Point
- Interface:
- Host Interface, Serial Port
- Clock Rate:
- 80MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 160kB
- Voltage - I/O:
- 1.8V, 2.5V, 3.3V
- Voltage - Core:
- 1.80V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-LQFP (14x14)
ADSP-2187NKSTZ-320 FAQ
1.How can I place an order for ADSP-2187NKSTZ-320 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-2187NKSTZ-320 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADSP-2187NKSTZ-320 reliable?
The price and inventory of ADSP-2187NKSTZ-320 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-2187NKSTZ-320 is usually 5 days.
3.What payment methods are accepted for ADSP-2187NKSTZ-320?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-2187NKSTZ-320 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-2187NKSTZ-320?
ADSP-2187NKSTZ-320 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-2187NKSTZ-320 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADSP-2187NKSTZ-320?
For technical support, including ADSP-2187NKSTZ-320 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-2187NKSTZ-320 requirements.
6.How does Aetrix verify that ADSP-2187NKSTZ-320 is sourced from the original manufacturer or authorized distributors?
All ADSP-2187NKSTZ-320 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADSP-2187NKSTZ-320 meets industry standards.
7.What is the process for return or replacement of ADSP-2187NKSTZ-320?
All ADSP-2187NKSTZ-320 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-2187NKSTZ-320, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADSP-2187NKSTZ-320 part is unused and in its original packaging.
Return procedure for ADSP-2187NKSTZ-320:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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