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Analog Devices Inc. ADSP-2187LKSTZ-160
- Part No.:
- ADSP-2187LKSTZ-160
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 100-LQFP
- Datasheet:
-
ADSP-2187LKSTZ-160.pdf
- Description:
- IC DSP CONTROLLER 16BIT 100TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,009
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Product details
Overview
ADSP-2187LKSTZ-160 from Analog Devices is a 33 MIPS fixed-point DSP microcomputer optimized for real-time audio, telecom, and industrial control applications. It features 16K × 24-bit on-chip program RAM, 16K × 16-bit on-chip data RAM, dual 16-bit synchronous serial ports (SPORT0/SPORT1), a 16-bit internal DMA port, and a programmable 16-bit interval timer with prescaler. Fabricated in 0.5 µm CMOS, it delivers 30 ns instruction cycle time and supports power-down mode with 100-cycle recovery.
For engineers reviewing the ADSP-2187LKSTZ-160 datasheet, ADSP-2187LKSTZ-160 pinout, ADSP-2187LKSTZ-160 application, or ADSP-2187LKSTZ-160 equivalent, key selection criteria include on-chip memory configuration, SPORT companding support (A-law/µ-law per G.711), host/full memory mode flexibility, ICE-Port™ debug interface compatibility, and low-power idle/slow-idle operation for battery-powered systems.
Technical Context
The ADSP-2187LKSTZ-160 implements the ADSP-2100 family 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 nested loops. Its 3-bus architecture enables simultaneous dual operand fetches - one from program memory and one from data memory - in every instruction cycle.
It integrates dual double-buffered serial ports with hardware companding, byte DMA (up to 4 MB addressing), and a 16-bit internal DMA port for transparent access to on-chip RAM. Memory interface supports full memory mode (14-bit address bus, 24-bit data bus) or host mode (16-bit multiplexed IDMA bus), selected via Mode C pin at reset.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Instruction Cycle Time | 30 ns - enables deterministic 33 MIPS sustained throughput for real-time signal processing. |
| On-Chip Program Memory | 16K × 24-bit RAM - stores instructions and constants; dual-purpose for data overlay in boot scenarios. |
| On-Chip Data Memory | 16K × 16-bit RAM - provides fast, low-latency operand access for filter coefficients and buffers. |
| Serial Ports | 2 × bidirectional SPORTs - support frameless/synchronous modes, 3–16-bit word lengths, and A-law/µ-law companding per CCITT G.711. |
| Timer | 16-bit programmable interval timer with 8-bit prescaler - generates precise periodic interrupts for sampling or scheduling. |
| Power Modes | Power-down (100-cycle wake-up), Idle, and Slow Idle (IDLE(n) with n=16/32/64/128) - reduce dynamic power without halting DMA or SPORT autobuffering. |
| Debug Interface | 14-pin ICE-Port™ - enables in-target, instruction-level emulation with up to 20 breakpoints and C-source debugging. |
Pinout & Package
The ADSP-2187LKSTZ-160 is housed in a 100-lead TQFP (Thin Quad Flat Package) with 0.5 mm pitch, thermally enhanced for embedded DSP applications requiring compact board layout and moderate power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN / XTAL | Clock input pair | Accepts either external TTL clock (at half instruction rate) or parallel-resonant crystal; determines core timing reference. |
| RESET | Asynchronous processor reset | Initializes registers, clears stacks, and forces boot sequence; also terminates power-down state. |
| PWD / PWDACK | Power-down control interface | PWD asserts hardware-initiated low-power entry; PWDACK confirms entry into dormant state. |
| SPORT0 / SPORT1 | Dual serial I/O interfaces | Each provides independent Tx/Rx double buffers, programmable clocks, and framing - supports TDM, codec interfacing, and multiprocessor comms. |
| Mode C / PF2 | Memory mode select & flag I/O | Configures Full Memory Mode (Mode C = 0) or Host Mode (Mode C = 1) at reset; retains PF2 flag functionality during operation. |
| IRQ2 / PF7, IRQE / PF4, etc. | Multiplexed interrupt/flag pins | Support concurrent use: e.g., IRQ2 functions as edge/level-sensitive interrupt while PF7 operates as programmable I/O flag. |
| ICE-Port™ (EZ-Port) | Emulation interface | 14-pin dedicated debug port enabling non-intrusive, real-time trace, register inspection, and flash programming in final system. |
Key Features
| Feature | Design Value |
|---|---|
| Single-cycle instruction execution | Every instruction - including multiply-accumulate, bit manipulation, and conditional branches - completes in one 30 ns cycle, enabling deterministic real-time response. |
| Dual SPORT hardware companding | Integrated A-law and µ-law encoding/decoding per CCITT G.711 eliminates need for external codec in voice-grade telephony and VoIP endpoints. |
| Zero-overhead looping | Hardware loop counters and stack eliminate branch penalties, allowing tight FIR/IIR filter kernels to execute without pipeline stalls. |
| Flexible memory interface modes | Full Memory Mode supports external 4 MB byte memory and I/O peripherals; Host Mode enables glueless connection to microcontroller buses via 16-bit IDMA port. |
| Programmable slow-idle clock scaling | IDLE(n) instruction reduces internal clock by factor of 16/32/64/128 - preserves full functionality while cutting dynamic power proportionally for sensor hub or portable audio applications. |
Applications
| Voice Communication Endpoint | Digital Audio Processing System |
|---|---|
|
Use Scenario: VoIP gateway handling multiple concurrent G.711-encoded voice channels with echo cancellation and DTMF detection. IC Role / Device Role / Timing Role: Primary signal processor executing real-time codecs, adaptive filters, and protocol stack offload - synchronized to 8 kHz sampling via timer-generated interrupts. Use Value: Dual SPORTs with hardware companding eliminate external codec ICs; on-chip 32K words RAM store coefficient tables and circular buffers for 16-channel processing. |
Use Scenario: Portable digital effects processor for guitar or microphone with reverb, chorus, and parametric EQ. IC Role / Device Role / Timing Role: Real-time audio stream coprocessor managing ADC/DAC data flow, applying FIR filters, and updating parameters via UART-emulated SPORT. Use Value: 33 MIPS throughput ensures sub-1 ms latency; slow-idle mode extends battery life during standby without losing buffer state or interrupt responsiveness. |
| Industrial Motor Control Interface | Embedded Telemetry Data Aggregator |
|
Use Scenario: Field-deployed servo drive controller acquiring current/voltage feedback, running field-oriented control (FOC) algorithms, and communicating via RS-485. IC Role / Device Role / Timing Role: Deterministic computation engine executing FOC inner-loop at 20 kHz - timed precisely by programmable timer with 100 ns resolution. Use Value: Power-down mode enables rapid wake-on-event (e.g., fault signal); 13 programmable flags interface directly to gate drivers, encoders, and status LEDs without GPIO expanders. |
Use Scenario: Remote environmental sensor node collecting analog inputs (temp, humidity, pressure), compressing data, and transmitting over LoRaWAN via UART-to-SPI bridge. IC Role / Device Role / Timing Role: Low-power data preprocessing unit performing sensor calibration, outlier rejection, and delta-encoding before transmission - activated by timer or external interrupt. Use Value: Idle and slow-idle modes reduce average current to <1 mA; byte DMA loads calibration tables from external SPI flash without CPU intervention. |
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-2189MKSTZ-160 | Higher-speed variant (160 MHz core, 6.25 ns cycle); identical pinout and memory map but requires faster external memory and tighter layout. | Better suited for multi-channel wideband audio or radar pulse compression where >33 MIPS is required. | Select when sustained throughput >33 MIPS is mandatory and PCB layout supports higher-speed signaling. |
| TMS320VC5402PGE100 | TI C54x architecture; 100 MHz, 16K × 16-bit RAM, McBSP serial ports (no native G.711 companding); different instruction set and toolchain. | Preferred in legacy TI-based designs or where Code Composer Studio ecosystem integration is critical. | Choose only if migrating from existing C54x codebase; not drop-in compatible due to ISA and peripheral differences. |
Compared with ADSP-2187LKSTZ-160, the ADSP-2189MKSTZ-160 offers higher compute density but increases power and layout complexity, while the TMS320VC5402PGE100 trades integrated companding and ICE-Port™ debug for broader third-party tool support - making the ADSP-2187LKSTZ-160 optimal for new cost-sensitive, voice-centric, or low-power embedded DSP designs.
Availability
ADSP-2187LKSTZ-160 is available at Aetrix Electronics and suitable for voice communication endpoints, portable digital audio processors, industrial motor control interfaces, and embedded telemetry data aggregators requiring stable component supply across extended production lifecycles.
Supply support for ADSP-2187LKSTZ-160 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 DSP technology, serving industrial, automotive, communications, and consumer markets since 1965.
The ADSP-21xx family was designed specifically for cost-sensitive, low-power embedded digital signal processing applications - emphasizing on-chip integration, deterministic real-time performance, and debug-friendly architecture for rapid firmware development.
FAQ
What clock source options does the ADSP-2187LKSTZ-160 support?
The ADSP-2187LKSTZ-160 accepts either an external TTL-compatible clock signal applied to CLKIN (at half the instruction rate, e.g., 16.67 MHz for 33 MIPS) or a parallel-resonant crystal connected across CLKIN and XTAL. The internal oscillator circuit supports fundamental-mode crystals; capacitor values must follow the crystal manufacturer's specification. XTAL must remain unconnected when using an external clock.
Does the ADSP-2187LKSTZ-160 support hardware-based A-law and µ-law companding?
Yes, the ADSP-2187LKSTZ-160 implements full hardware companding per CCITT G.711 standard on both SPORT0 and SPORT1. This allows direct interface with PSTN line cards and VoIP codecs without external compander ICs - reducing BOM count and latency in voice processing pipelines.
How does memory mode selection work on the ADSP-2187LKSTZ-160?
Memory mode is selected at reset via the Mode C pin (multiplexed with PF2). Mode C = 0 configures Full Memory Mode (14-bit address, 24-bit data bus for external overlay memory), while Mode C = 1 selects Host Mode (16-bit multiplexed IDMA bus). The setting is latched at reset and cannot be changed dynamically during operation.
Can the ADSP-2187LKSTZ-160 enter low-power states without stopping DMA or serial transfers?
Yes - in Idle and Slow Idle modes, the ADSP-2187LKSTZ-160 continues servicing byte DMA transfers, SPORT autobuffer cycles, and timer decrements while reducing CPU clock frequency. Only Power-Down mode halts all internal clocks except those needed for wake-up event detection.
Is the ADSP-2187LKSTZ-160 pin-compatible with other ADSP-218x devices?
Yes, the ADSP-2187LKSTZ-160 shares the same 100-lead TQFP package and pinout as ADSP-2181, ADSP-2185, and ADSP-2189 variants. Functionally identical peripherals and memory maps enable hardware reuse across the ADSP-218x family - though speed grades and minor feature sets (e.g., instruction extensions) differ.
ADSP-2187LKSTZ-160 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- ADSP-21xx
- Package/Case:
- 100-LQFP
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- Fixed Point
- Interface:
- Host Interface, Serial Port
- Clock Rate:
- 40MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 160kB
- Voltage - I/O:
- 3.30V
- Voltage - Core:
- 3.30V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-LQFP (14x14)
ADSP-2187LKSTZ-160 FAQ
1.How can I place an order for ADSP-2187LKSTZ-160 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-2187LKSTZ-160 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-2187LKSTZ-160 reliable?
The price and inventory of ADSP-2187LKSTZ-160 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-2187LKSTZ-160 is usually 5 days.
3.What payment methods are accepted for ADSP-2187LKSTZ-160?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-2187LKSTZ-160 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-2187LKSTZ-160?
ADSP-2187LKSTZ-160 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-2187LKSTZ-160 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-2187LKSTZ-160?
For technical support, including ADSP-2187LKSTZ-160 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-2187LKSTZ-160 requirements.
6.How does Aetrix verify that ADSP-2187LKSTZ-160 is sourced from the original manufacturer or authorized distributors?
All ADSP-2187LKSTZ-160 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-2187LKSTZ-160 meets industry standards.
7.What is the process for return or replacement of ADSP-2187LKSTZ-160?
All ADSP-2187LKSTZ-160 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-2187LKSTZ-160, 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-2187LKSTZ-160 part is unused and in its original packaging.
Return procedure for ADSP-2187LKSTZ-160:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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