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Analog Devices Inc. ADSP-2187LBSTZ-210
- Part No.:
- ADSP-2187LBSTZ-210
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 100-LQFP
- Datasheet:
-
ADSP-2187LBSTZ-210.pdf
- Description:
- IC DSP CONTROLLER 16BIT 100-TQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,075
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Product details
Overview
ADSP-2187LBSTZ-210 from Analog Devices is a 33 MIPS fixed-point DSP microcomputer with 16K × 24-bit on-chip program RAM, 16K × 16-bit on-chip data RAM, and dual synchronous serial ports (SPORT0/SPORT1). It executes instructions in 30 ns cycles, supports zero-overhead looping, and targets real-time audio processing, telecom channel coding, and motor control firmware.
For engineers reviewing the ADSP-2187LBSTZ-210 datasheet, ADSP-2187LBSTZ-210 pinout, ADSP-2187LBSTZ-210 application, or ADSP-2187LBSTZ-210 equivalent, key selection criteria include instruction cycle time, on-chip memory configuration, serial port framing flexibility, power-down recovery latency, and ICE-Port™ debug interface compatibility.
Technical Context
The ADSP-2187LBSTZ-210 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. It supports simultaneous dual operand fetches via 3-bus architecture and executes bit-manipulation instructions (bit set/clear/toggle/test) not present in earlier ADSP-2100 variants.
It integrates a 16-bit internal DMA port (IDMA) for host-mode memory access, an 8-bit byte DMA port (BDMA) addressing up to 4 MB external memory, and programmable 16-bit interval timer with prescaler. Serial ports support hardware A-law/µ-law companding per CCITT G.711 and frameless or framed operation with independent transmit/receive synchronization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Instruction Cycle Time | 30 ns - enables 33 MIPS sustained throughput for real-time FIR/IIR filter execution |
| On-Chip Program Memory | 16K × 24-bit RAM - stores both instructions and constants; eliminates external program ROM in boot-from-RAM systems |
| On-Chip Data Memory | 16K × 16-bit RAM - supports dual-operand FFT butterfly operations without external memory stalls |
| Serial Ports | 2 × double-buffered SPORTs - enable full-duplex TDM voice channel handling with hardware companding |
| Power-Down Recovery | 100 CLKIN cycles - allows rapid wake-up for burst-mode sensor acquisition without clock re-stabilization delay |
| Timer Resolution | Programmable 16-bit counter with 8-bit prescaler - generates precise periodic interrupts for motor commutation timing |
| External Interrupts | 6 configurable IRQ pins (IRQ0–IRQ2, IRQL0/1, IRQE) - support edge- or level-sensitive triggering for encoder quadrature inputs |
Pinout & Package
ADSP-2187LBSTZ-210 is housed in a 100-lead TQFP package (14 mm × 14 mm, 0.5 mm pitch) with exposed thermal pad. Pin functionality is mode-dependent: Full Memory Mode uses A13:A0/D23:D0 for external memory interfacing, while Host Mode repurposes pins as IAD15:IAD0/IRD/IWR for IDMA transactions. Multiplexed pins retain concurrent interrupt/flag roles (e.g., IRQ2/PF7).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN / XTAL | Clock input pair | Accepts 16.67 MHz crystal or TTL clock; internal oscillator enables crystal power-down during standby |
| SPORT0 (DT0, DR0, TFS0, RFS0, SCLK0) | Synchronous serial interface | Configurable for TDM, I²S, or custom framing; supports 3–16-bit word lengths with hardware µ-law |
| SPORT1 (DT1, DR1, TFS1, RFS1, SCLK1) | Secondary serial interface | Reconfigurable as IRQ0/IRQ1 + FI/FO for system signaling while retaining serial clock generation |
| PWD / PWDACK | Power management control | PWD initiates hardware power-down; PWDACK confirms entry into ultra-low-power state (100-cycle recovery) |
| EZ-Port (9-pin) | ICE-Port™ debug interface | Enables non-intrusive in-circuit emulation without target board modification or processor removal |
| MODE C / PF2 | Boot mode select | Active-low during RESET configures Full Memory Mode (external overlay) or Host Mode (IDMA-only) |
Key Features
| Feature | Design Value |
|---|---|
| Three independent computational units | ALU, MAC, and shifter operate concurrently per cycle - enables single-cycle multiply-accumulate plus address update for efficient FIR filtering |
| Dual data address generators (DAGs) | Each maintains 4 auto-modified pointers with length registers - supports circular buffer addressing for real-time audio sample buffering |
| Zero-overhead looping | Hardware loop counters eliminate branch penalties - critical for deterministic execution of control law algorithms |
| Programmable memory strobe & wait states | Supports direct interfacing to slow peripherals (e.g., EEPROM, LCD controllers) without glue logic |
| UART emulation via SPORT reconfiguration | Software-configured serial port mimics UART timing - enables legacy RS-232 communication without dedicated UART IC |
Applications
| Voice Communications System | Digital Audio Processing |
|---|---|
|
Use Scenario: Real-time echo cancellation and DTMF detection in VoIP gateways. IC Role / Device Role / Timing Role: Primary signal processor executing adaptive LMS algorithms and tone decoding with deterministic 30 ns instruction timing. Use Value: Dual SPORTs handle simultaneous PCM voice streams; on-chip RAM eliminates external memory latency for coefficient updates. |
Use Scenario: Embedded effects processing (reverb, equalization) in portable audio players. IC Role / Device Role / Timing Role: Fixed-point DSP core managing multi-band parametric EQ with 48 kHz sample rate. Use Value: Hardware companding reduces dynamic range for 16-bit DAC interfaces; power-down mode extends battery life between playback bursts. |
| Industrial Motor Control | Telecom Channel Coding |
|
Use Scenario: Field-oriented control (FOC) of 3-phase BLDC motors in HVAC compressors. IC Role / Device Role / Timing Role: Real-time executor of Clarke/Park transforms and PWM modulation with sub-microsecond jitter tolerance. Use Value: Programmable timer generates precise commutation events; 13 flag pins directly drive gate drivers and sense amplifiers. |
Use Scenario: Viterbi decoding and CRC calculation in wireless baseband subsystems. IC Role / Device Role / Timing Role: High-throughput accelerator for convolutional code decoding with parallel bit-manipulation instructions. Use Value: Bit-test/set instructions accelerate trellis path metric updates; 33 MIPS throughput meets GSM full-rate channel requirements. |
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-266 | Higher clock speed (266 MHz core, 3.75 ns cycle); 32K × 24-bit program RAM; enhanced DMA controller | Required for >100 MIPS compute loads (e.g., wideband OFDM demodulation) | Select when algorithm complexity exceeds ADSP-2187LBSTZ-210's 33 MIPS sustained throughput |
| TMS320C549PGE | TI C54x architecture; 100 MIPS at 100 MHz; different instruction set; no integrated ICE-Port™ | Used in legacy TI-based designs requiring C54x toolchain compatibility | Choose only if existing software investment mandates C54x ISA; not pin-compatible or code-compatible |
Compared with ADSP-2187LBSTZ-210, the ADSP-2189MKSTZ-266 delivers 8× higher peak performance but requires revised PCB layout for its 144-pin LQFP package, while the TMS320C549PGE offers higher raw MIPS but lacks on-chip debug infrastructure and ADSP-2100 family code compatibility.
Availability
ADSP-2187LBSTZ-210 is available at Aetrix Electronics and suitable for voice communications systems, digital audio processing modules, industrial motor control boards, and telecom channel coding subsystems requiring stable component supply across extended production lifecycles.
Supply support for ADSP-2187LBSTZ-210 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 is a global leader in high-performance analog, mixed-signal, and DSP technology, serving industrial, automotive, communications, and consumer markets since 1965.
The ADSP-2187LBSTZ-210 belongs to the ADSP-2100 family of fixed-point DSPs designed specifically for deterministic real-time signal processing in resource-constrained embedded systems where low-latency interrupt response and on-chip memory integration are critical.
FAQ
What is the maximum operating frequency of the ADSP-2187LBSTZ-210?
The ADSP-2187LBSTZ-210 operates with a 30 ns instruction cycle time, corresponding to a 33.33 MHz internal instruction clock. It accepts a 16.67 MHz external clock signal (CLKIN) or crystal across CLKIN/XTAL pins. This timing is guaranteed across commercial temperature range (0°C to +70°C) and 5 V ±10% supply.
Does the ADSP-2187LBSTZ-210 support booting from external memory?
Yes, the ADSP-2187LBSTZ-210 supports automatic booting from byte-wide external memory such as EPROM or flash. During reset, it loads the first 64 words of program code from external memory into on-chip program RAM. This capability is enabled in Full Memory Mode using the BMS signal and requires proper configuration of the BDMA port.
How does the power-down mode function on the ADSP-2187LBSTZ-210?
The ADSP-2187LBSTZ-210 enters power-down mode via assertion of the PWD pin or software command, reducing current consumption to microamp levels. It recovers in exactly 100 CLKIN cycles, with PWDACK confirming entry. The nonmaskable power-down interrupt allows wake-up on external events without CPU intervention, making ADSP-2187LBSTZ-210 suitable for battery-powered sensing nodes.
Can the ADSP-2187LBSTZ-210 serial ports handle TDM voice channels?
Yes, SPORT0 supports multichannel TDM operation for 24- or 32-word time-division multiplexed bitstreams, while SPORT1 can be configured for additional TDM lanes or re-purposed for system signaling. Both ports support hardware A-law/µ-law companding per CCITT G.711, enabling direct interface to telephony codecs without external conversion circuitry.
Is the ADSP-2187LBSTZ-210 pin-compatible with other ADSP-2100 family members?
No, the ADSP-2187LBSTZ-210 is not pin-compatible with earlier ADSP-2185 or ADSP-2186 variants due to differences in pin assignment for IDMA/BDMA modes and EZ-Port signal routing. While instruction-set compatible with the ADSP-2100 family, its 100-lead TQFP footprint and signal multiplexing require unique PCB layout - verified in Analog Devices' ADSP-2187 datasheet revision history.
ADSP-2187LBSTZ-210 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- ADSP-21xx
- Package/Case:
- 100-LQFP
- Packaging:
- Tray
- Product Status:
- Last Time Buy
- Type:
- Fixed Point
- Interface:
- Host Interface, Serial Port
- Clock Rate:
- 52MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 160kB
- Voltage - I/O:
- 3.30V
- Voltage - Core:
- 3.30V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-LQFP (14x14)
ADSP-2187LBSTZ-210 FAQ
1.How can I place an order for ADSP-2187LBSTZ-210 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-2187LBSTZ-210 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-2187LBSTZ-210 reliable?
The price and inventory of ADSP-2187LBSTZ-210 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-2187LBSTZ-210 is usually 5 days.
3.What payment methods are accepted for ADSP-2187LBSTZ-210?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-2187LBSTZ-210 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-2187LBSTZ-210?
ADSP-2187LBSTZ-210 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-2187LBSTZ-210 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-2187LBSTZ-210?
For technical support, including ADSP-2187LBSTZ-210 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-2187LBSTZ-210 requirements.
6.How does Aetrix verify that ADSP-2187LBSTZ-210 is sourced from the original manufacturer or authorized distributors?
All ADSP-2187LBSTZ-210 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-2187LBSTZ-210 meets industry standards.
7.What is the process for return or replacement of ADSP-2187LBSTZ-210?
All ADSP-2187LBSTZ-210 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-2187LBSTZ-210, 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-2187LBSTZ-210 part is unused and in its original packaging.
Return procedure for ADSP-2187LBSTZ-210:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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