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Analog Devices Inc. ADSP-2186MBSTZ-266
- Part No.:
- ADSP-2186MBSTZ-266
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 100-LQFP
- Datasheet:
-
ADSP-2186MBSTZ-266.pdf
- Description:
- IC DSP CONTROLLER 16BIT 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,154
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Product details
Overview
ADSP-2186MBSTZ-266 from Analog Devices is a 24-bit/16-bit fixed-point DSP microcomputer optimized for real-time signal processing in embedded audio, telecom, and industrial control systems. It delivers 75 MIPS sustained performance at 13.3 ns instruction cycle time, integrates 8K × 24-bit program RAM and 8K × 16-bit data RAM, and supports dual serial ports (SPORT0/SPORT1) with hardware companding for voice-band applications.
For engineers reviewing the ADSP-2186MBSTZ-266 datasheet, ADSP-2186MBSTZ-266 pinout, ADSP-2186MBSTZ-266 application, or ADSP-2186MBSTZ-266 equivalent, key selection criteria include its 100-lead LQFP package, 2.5 V core supply with 3.3 V I/O tolerance, zero-overhead looping architecture, internal DMA port for high-speed memory access, and ICE-Port™ debug interface for in-system emulation.
Technical Context
The ADSP-2186MBSTZ-266 implements the ADSP-2100 base architecture with three independent computational units-ALU, MAC, and shifter-enabling simultaneous arithmetic, multiply-accumulate, and bit manipulation in one cycle. Its dual DAGs support circular buffer addressing and dual operand fetches via 3-bus architecture (PMA/PMD/DMA/DMD/R).
It operates in Full Memory Mode (Mode C = 0) or Host Mode (Mode C = 1), with configurable external bus interface supporting 4 MB byte memory space, I/O memory mapping, programmable wait states, and IDMA port for glueless host processor interfacing. Serial ports support frame-synchronous, frameless, and multichannel TDM modes with A-law/μ-law companding per CCITT G.711.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | ADSP-2100 family 3-bus Harvard architecture with ALU, MAC, and shifter units |
| Performance | 75 MIPS sustained at 13.3 ns instruction cycle time; single-cycle instruction execution |
| On-Chip Memory | 8K × 24-bit program RAM + 8K × 16-bit data RAM; dual-purpose program memory for instructions/data |
| Serial Interfaces | Two independent SPORTs with hardware A-law/μ-law companding, double-buffered Tx/Rx, and multichannel TDM on SPORT0 |
| Power Supply | 2.5 V core (VDDINT), 2.5 V or 3.3 V I/O (VDDEXT); all inputs tolerate up to 3.6 V regardless of mode |
| Package | 100-lead LQFP (ST-100), 0.5 mm pitch; RoHS-compliant, lead-free finish |
| Debug Interface | 14-pin ICE-Port™ for in-circuit emulation without target board modification or device removal |
Pinout & Package
ADSP-2186MBSTZ-266 is housed in a 100-lead LQFP (ST-100) package with 0.5 mm pitch and exposed thermal pad. Pin functions are mode-dependent: Full Memory Mode (Mode C = 0) uses A13:A0 and D23:D0 for external address/data buses; Host Mode (Mode C = 1) repurposes pins for 16-bit IDMA port (IAD15:IAD0), IWR/IRD/IAL/IS/IACK. Key shared pins include IRQ2/PF7, IRQL1/PF6, IRQL0/PF5, IRQE/PF4, and SPORT1 signals (RFS1/IRQ0, DR1/FI, TFS1/IRQ1, DT1/FO).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Asynchronous processor reset input | Active-low; initializes all registers, disables peripherals, forces boot sequence |
| CLKIN / XTAL | System clock source input | Accepts crystal (1–50 MHz) or external clock; determines 13.3 ns instruction cycle timing |
| A13:A0 | External address bus (Full Memory Mode) | Drives 14-bit address for program/data/byte/I/O spaces; enables 4 MB external memory access |
| D23:D0 | External bidirectional data bus | 24-bit wide; upper 8 bits (D23:D16) serve as byte memory address in BDMA operations |
| SPORT0 (SCLK0, RFS0, DR0, TFS0, DT0) | Synchronous serial port 0 interface | Supports framed/frameless operation, 3–16 bit word length, and 24/32-word TDM for telephony interfaces |
| PWD / PWDACK | Power-down control interface | PWD asserts low-power state; PWDACK confirms entry into 200-CLKIN-cycle recovery mode |
Key Features
| Feature | Design Value |
|---|---|
| Zero-overhead looping | Hardware loop counters and stack eliminate branch overhead for repetitive signal processing kernels |
| Bit manipulation instructions | Native BIT SET/CLEAR/TOGGLE/TEST enable efficient protocol parsing and control register handling |
| Internal DMA port (IDMA) | 16-bit multiplexed address/data bus with IWR/IRD/IAL/IS/IACK for direct host CPU memory-mapped access |
| Byte DMA controller (BDMA) | Bidirectional 8-bit interface supporting transparent overlay loading from EPROM/Flash into program/data RAM |
| Programmable flag I/O | 13 general-purpose flags (8 software-configurable I/O, 3 dedicated outputs) for system signaling and status monitoring |
| ICE-Port™ emulator interface | 14-pin debug port enabling full-speed in-target debugging, breakpoint setting, and memory/register inspection without board rework |
Applications
| Voice Communications Terminal | Digital Audio Processing System |
|---|---|
|
Use Scenario: Real-time echo cancellation and DTMF detection in VoIP gateways and PBX endpoints. IC Role / Device Role / Timing Role: Primary DSP executing adaptive filtering algorithms with deterministic 13.3 ns instruction latency and SPORT0/SPORT1 synchronized to codec clocks. Use Value: Hardware companding (A-law/μ-law) reduces external codec complexity; on-chip 16 kB RAM eliminates external SRAM for coefficient storage. |
Use Scenario: Multi-channel audio effects processing (reverb, equalization) in professional audio mixers. IC Role / Device Role / Timing Role: Fixed-point signal processor running parallel FIR/IIR filters with zero-overhead loops and dual-DAG circular buffering for sample streams. Use Value: Dual SPORTs support simultaneous stereo input/output; 75 MIPS throughput handles >32 channels of 48 kHz audio with headroom. |
| Industrial Motor Control Interface | Telecom Line Card Signal Processor |
|
Use Scenario: Sensor fusion and PWM waveform generation in servo drive controllers with analog feedback. IC Role / Device Role / Timing Role: Real-time controller managing ADC sampling, PID computation, and timer-triggered PWM updates within strict 10 µs jitter budget. Use Value: Programmable 16-bit interval timer with TSCALE prescaler enables precise 1–100 kHz update rates; flag pins directly drive opto-isolated gate drivers. |
Use Scenario: Channelized T1/E1 line interface unit performing CAS/CCS signaling, HDLC framing, and BERT testing. IC Role / Device Role / Timing Role: Protocol engine using SPORT0 in 24-word TDM mode for DS0 channel extraction and SPORT1 for backplane communication. Use Value: Multichannel SPORT0 supports 24/32-slot TDM; internal BDMA automates frame buffer transfers 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-2189MSTZ-120 | Higher clock speed (120 MHz), 144-ball Mini-BGA package, identical instruction set and peripheral set | Targets space-constrained designs requiring higher throughput; lacks LQFP option and has different thermal profile | Select when >75 MIPS is required and board layout accommodates BGA; verify thermal management for continuous operation |
| TMS320C549PGE | TI C54x architecture; 100 MIPS @ 100 MHz, 16K × 16-bit RAM, different instruction set and memory map | Requires full software porting; suited for legacy C54x code bases and TI ecosystem toolchains | Choose only for migration from existing C54x designs; not drop-in compatible due to ISA and peripheral register differences |
Compared with ADSP-2186MBSTZ-266, ADSP-2189MSTZ-120 offers higher performance in a smaller footprint but requires BGA assembly and thermal redesign, while TMS320C549PGE provides TI-specific toolchain continuity at the cost of complete firmware rework and no hardware compatibility.
Availability
ADSP-2186MBSTZ-266 is available at Aetrix Electronics and suitable for voice communications terminals, digital audio processing systems, and industrial motor control interfaces requiring stable component supply across extended production lifecycles.
Supply support for ADSP-2186MBSTZ-266 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 with precision signal processing solutions.
The ADSP-2186MBSTZ-266 belongs to the ADSP-2100 family of fixed-point DSP microcomputers designed for deterministic real-time signal processing in resource-constrained embedded systems where low power, small footprint, and debuggability are critical.
FAQ
What is the maximum operating frequency and instruction throughput of the ADSP-2186MBSTZ-266?
The ADSP-2186MBSTZ-266 operates at a 13.3 ns instruction cycle time, delivering 75 million instructions per second (MIPS) sustained performance. This throughput is achieved with single-cycle instruction execution, zero-overhead looping, and dual operand fetch capability enabled by its 3-bus architecture. The ADSP-2186MBSTZ-266 does not support dynamic frequency scaling; its clock rate is fixed by the CLKIN or XTAL input signal.
Does the ADSP-2186MBSTZ-266 support both 2.5 V and 3.3 V I/O interfaces?
Yes, the ADSP-2186MBSTZ-266 supports flexible I/O voltage operation: its core logic runs at 2.5 V (VDDINT), while its I/O pins operate at either 2.5 V or 3.3 V (VDDEXT). Critically, all input pins tolerate up to 3.6 V regardless of the selected VDDEXT level, enabling safe interfacing with mixed-voltage systems without level shifters.
How does the ADSP-2186MBSTZ-266 handle external memory expansion?
The ADSP-2186MBSTZ-266 supports external memory expansion through two configurable modes: Full Memory Mode (Mode C = 0) provides 14-bit address (A13:A0) and 24-bit data (D23:D0) buses for up to 4 MB byte memory space, while Host Mode (Mode C = 1) uses a 16-bit multiplexed IDMA port (IAD15:IAD0) with dedicated control signals (IWR/IRD/IAL/IS/IACK) for glueless host processor interfacing.
What debug capabilities does the ADSP-2186MBSTZ-266 provide?
The ADSP-2186MBSTZ-266 integrates an on-chip ICE-Port™ emulator interface with a standardized 14-pin connector. This enables full-speed in-circuit debugging-including breakpoints, single-stepping, memory/register inspection, and instruction-level boot emulation-without removing the device from the target board or adding adapters. The ADSP-2186MBSTZ-266 requires no external JTAG adapter; EZ-ICE® tools connect directly to the ICE-Port.
Can the ADSP-2186MBSTZ-266 boot from external memory?
Yes, the ADSP-2186MBSTZ-266 supports automatic booting from external byte-wide memory (e.g., EPROM or Flash) via its Byte DMA (BDMA) port. During reset, it loads program code into on-chip program RAM; this process is transparent and requires no host intervention. Alternatively, booting can occur through the Internal DMA (IDMA) port in Host Mode, allowing external processors to initialize the ADSP-2186MBSTZ-266's memory space.
ADSP-2186MBSTZ-266 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:
- 66MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 40kB
- Voltage - I/O:
- 3.30V
- Voltage - Core:
- 2.50V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-LQFP (14x14)
ADSP-2186MBSTZ-266 FAQ
1.How can I place an order for ADSP-2186MBSTZ-266 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-2186MBSTZ-266 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-2186MBSTZ-266 reliable?
The price and inventory of ADSP-2186MBSTZ-266 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-2186MBSTZ-266 is usually 5 days.
3.What payment methods are accepted for ADSP-2186MBSTZ-266?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-2186MBSTZ-266 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-2186MBSTZ-266?
ADSP-2186MBSTZ-266 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-2186MBSTZ-266 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-2186MBSTZ-266?
For technical support, including ADSP-2186MBSTZ-266 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-2186MBSTZ-266 requirements.
6.How does Aetrix verify that ADSP-2186MBSTZ-266 is sourced from the original manufacturer or authorized distributors?
All ADSP-2186MBSTZ-266 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-2186MBSTZ-266 meets industry standards.
7.What is the process for return or replacement of ADSP-2186MBSTZ-266?
All ADSP-2186MBSTZ-266 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-2186MBSTZ-266, 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-2186MBSTZ-266 part is unused and in its original packaging.
Return procedure for ADSP-2186MBSTZ-266:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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