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Analog Devices Inc. ADSP-2186MBSTZ266R
- Part No.:
- ADSP-2186MBSTZ266R
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 100-LQFP
- Datasheet:
-
ADSP-2186MBSTZ266R.pdf
- Description:
- IC DSP CONTROLLER 16BIT 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,210
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Product details
Overview
ADSP-2186MBSTZ266R 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 2.5 V with 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 per G.711.
For engineers reviewing the ADSP-2186MBSTZ266R datasheet, ADSP-2186MBSTZ266R pinout, ADSP-2186MBSTZ266R application, or ADSP-2186MBSTZ266R equivalent, key selection criteria include its 100-lead LQFP package, full memory mode vs. host mode configuration via Mode C pin, byte DMA support for EPROM booting, ICE-Port™ debug interface, and 2.5 V core / 2.5–3.3 V I/O voltage flexibility.
Technical Context
The ADSP-2186MBSTZ266R implements the ADSP-2100 base architecture with three independent computational units: ALU, 40-bit MAC, and barrel shifter - enabling single-cycle multiply-accumulate, bit manipulation (set/clear/toggle/test), and biased rounding. Its dual DAGs support circular buffering and simultaneous dual-operand fetches from program and data memory in every cycle.
It features two double-buffered synchronous serial ports with programmable frame sync, 3–16-bit word lengths, and A-law/µ-law companding; a 16-bit internal DMA port (IDMA) for host-mode system interfacing; and a byte DMA controller supporting up to 4 MB external byte memory for program overlays and data tables.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | ADSP-2100 family 3-bus Harvard architecture with ALU, MAC, and shifter executing in parallel |
| Performance | 75 MIPS sustained @ 2.5 V; 13.3 ns instruction cycle time; zero-overhead looping |
| On-Chip Memory | 8K × 24-bit program RAM + 8K × 16-bit data RAM = 40 KB total; dual-purpose program memory allows instruction+data co-location |
| Serial Interfaces | Two independent SPORTs (SPORT0/SPORT1) with hardware companding, frame sync, and multichannel TDM support on SPORT0 |
| Memory Interface Modes | Full Memory Mode (14-bit address, 24-bit data bus) or Host Mode (16-bit IDMA address/data bus); selected by Mode C pin at reset |
| Power Management | Power-down mode with 200 CLKIN-cycle wake-up; idle/slow-idle modes; 2.5 V core supply (VDDINT), 2.5–3.3 V I/O (VDDEXT) |
| Debug Interface | 14-pin ICE-Port™ for in-circuit emulation; supports breakpoints, register/memory access, and boot emulation without target removal |
Pinout & Package
The ADSP-2186MBSTZ266R is packaged in a 100-lead LQFP (ST-100) with 0.5 mm pitch, thermally enhanced for industrial temperature operation (–40°C to +85°C). Pin functions are mode-dependent: Full Memory Mode uses A13:A0 and D23:D0 for external memory; Host Mode repurposes pins for IAD15:IAD0, IWR, IRD, IAL, IS, and IACK.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Asynchronous processor reset input | Active-low signal initializing all registers and forcing boot sequence; sampled synchronously to CLKIN |
| CLKIN / XTAL | System clock source input | Accepts 26.6 MHz crystal or external clock; drives internal PLL to generate core timing; CLKOUT available for trace/debug sync |
| MODE C | Operating mode select (latched at RESET) | Mode C = 0 → Full Memory Mode; Mode C = 1 → Host Mode; determines pin multiplexing and bus configuration |
| SPORT0 / SPORT1 | Dual synchronous serial I/O interfaces | Each includes SCLK, RFS, TFS, DRx, DTx; SPORT0 supports 24/32-word TDM; SPORT1 configurable as IRQ0/IRQ1/FI/FO |
| PWD / PWDACK | Power-down control handshake | PWD asserts low to enter power-down; PWDACK confirms entry and enables wake-up timing (200 CLKIN cycles) |
| ICE-Port Pins (TCK, TDO, TDI, TMS, TRST, etc.) | In-circuit emulation interface | 14-pin dedicated JTAG-compatible port enabling non-intrusive debugging, breakpoint insertion, and memory inspection in final hardware |
Key Features
| Feature | Design Value |
|---|---|
| Single-cycle instruction execution | Every instruction completes in one 13.3 ns cycle - including ALU, MAC, shifter, and memory access operations |
| Zero-overhead looping | Hardware loop counters and stack eliminate branch overhead for tight control loops in FIR/IIR filters and FFT kernels |
| Byte DMA boot capability | Automatically loads program code from byte-wide EPROM/Flash into on-chip RAM at power-up - enabling field-upgradable firmware |
| Flexible I/O voltage tolerance | All inputs tolerate up to 3.6 V regardless of VDDEXT setting (2.5 V or 3.3 V), simplifying mixed-voltage system integration |
| Programmable flag I/O | 13 general-purpose flags (PF7–PF0, FL2–FL0) usable as interrupt sources, status indicators, or GPIO - configurable per application need |
Applications
| Audio Signal Processing | Telecom Line Card |
|---|---|
Use Scenario: Real-time echo cancellation and noise suppression in VoIP handsets and conference systems. IC Role / Device Role / Timing Role: Primary DSP engine performing adaptive filtering, spectral analysis, and G.711 companding on dual-channel audio streams. Use Value: On-chip 8K × 24-bit program RAM stores filter coefficients and algorithm code; SPORT0/SPORT1 handle simultaneous stereo I/O with hardware µ-law encoding/decoding. |
Use Scenario: Channelized TDM processing in digital PBX and access gateway line cards. IC Role / Device Role / Timing Role: TDM controller and channel bank processor managing up to 32 DS0 channels via SPORT0's multichannel interface. Use Value: SPORT0 supports 24/32-word TDM frames with independent receive/transmit framing; byte DMA loads overlay code for protocol-specific channel handling. |
| Industrial Motor Control | Test & Measurement Instrumentation |
Use Scenario: Closed-loop servo control with real-time PID, observer, and PWM generation in PLC-based motion controllers. IC Role / Device Role / Timing Role: Deterministic real-time computation node executing position/velocity loops at 10–20 kHz sample rates. Use Value: 75 MIPS throughput ensures sub-1 µs loop latency; programmable timer and flag pins synchronize PWM outputs and ADC triggers. |
Use Scenario: Digital oscilloscope front-end processing for waveform capture, triggering, and FFT-based spectrum analysis. IC Role / Device Role / Timing Role: High-speed data acquisition coprocessor interfacing to ADCs via IDMA or external memory bus. Use Value: Internal DMA port enables burst transfers from high-speed ADC FIFOs; 40 KB on-chip RAM buffers multiple acquisition records before host upload. |
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-2189MSTZ266 | Higher clock speed (75 MHz vs. 26.6 MHz base), integrated AD73322 codec interface, 144-ball Mini-BGA only | Targeted for audio evaluation and rapid prototyping with stereo codec; lacks byte DMA boot from EPROM | Select when audio I/O integration and higher throughput are required; verify Mini-BGA layout compatibility and boot method alignment |
| TMS320C549PGE | TI C54x architecture; 100 MIPS @ 100 MHz; 16K × 16-bit RAM; different instruction set and peripheral mapping | Requires full software porting; no native G.711 companding hardware; broader third-party toolchain support | Select when migrating legacy C54x code or requiring higher MIPS density; expect significant firmware rework and peripheral driver redesign |
Compared with ADSP-2186MBSTZ266R, the ADSP-2189M offers faster raw compute but sacrifices byte-memory boot flexibility, while the TMS320C549 provides higher peak performance at the cost of architectural incompatibility and loss of Analog Devices' ICE-Port™ debug ecosystem.
Availability
ADSP-2186MBSTZ266R is available at Aetrix Electronics and suitable for industrial motor control, telecom line card design, audio signal processing, and test instrumentation requiring stable component supply across extended product lifecycles.
Supply support for ADSP-2186MBSTZ266R 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, founded in 1965 and headquartered in Wilmington, MA.
The ADSP-2186MBSTZ266R belongs to the ADSP-2100 family - designed specifically for deterministic, low-latency digital signal processing in resource-constrained embedded systems where code efficiency, debug visibility, and power-aware operation are critical.
FAQ
What is the maximum operating frequency and instruction throughput of the ADSP-2186MBSTZ266R?
The ADSP-2186MBSTZ266R operates at a 26.6 MHz input clock (CLKIN), yielding a 13.3 ns instruction cycle time and 75 MIPS sustained throughput. This performance is achieved under 2.5 V core supply conditions and assumes optimal memory access patterns. The ADSP-2186MBSTZ266R does not use an internal PLL multiplier - its instruction rate is directly tied to CLKIN frequency, making timing predictable and jitter-free for real-time control loops.
Does the ADSP-2186MBSTZ266R support booting from external memory, and if so, what types?
Yes, the ADSP-2186MBSTZ266R supports automatic booting from external byte-wide memory such as EPROM or Flash via its Byte DMA (BDMA) port. During reset, it reads 8-bit data from external memory and loads instructions into on-chip program RAM. This capability enables field-upgradable firmware without requiring external ROM emulation or host intervention - a key feature distinguishing the ADSP-2186MBSTZ266R from earlier ADSP-2100 variants.
How does the Mode C pin affect the ADSP-2186MBSTZ266R's external interface configuration?
The Mode C pin on the ADSP-2186MBSTZ266R is sampled only at reset and permanently selects between Full Memory Mode (Mode C = 0) and Host Mode (Mode C = 1). In Full Memory Mode, pins A13:A0 and D23:D0 become dedicated address/data buses for external memory expansion. In Host Mode, those same pins are repurposed as the 16-bit IDMA address/data bus (IAD15:IAD0) plus control signals (IWR, IRD, IAL, IS, IACK), enabling glueless connection to an FPGA or microcontroller host.
What debug capabilities does the ADSP-2186MBSTZ266R provide, and how is it implemented?
The ADSP-2186MBSTZ266R integrates a 14-pin ICE-Port™ interface compliant with JTAG boundary-scan standards, enabling non-intrusive in-circuit emulation. It supports up to 20 hardware breakpoints, real-time register and memory inspection, instruction-level step-through, and full boot sequence emulation - all without removing the ADSP-2186MBSTZ266R from the target board. This eliminates adapter requirements and supports debugging in final-system form factors.
Can the ADSP-2186MBSTZ266R's serial ports handle both audio and TDM protocols simultaneously?
Yes - SPORT0 on the ADSP-2186MBSTZ266R supports time-division multiplexed (TDM) operation with configurable 24- or 32-word frames, making it suitable for primary TDM stream handling (e.g., E1/T1 line interfaces). SPORT1 operates independently with full framing control and can be used concurrently for audio codec interfacing (e.g., AC'97 or I²S-like protocols) or secondary TDM channels. Both ports implement hardware A-law/µ-law companding per CCITT G.711, eliminating CPU overhead for voice coding.
ADSP-2186MBSTZ266R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- ADSP-21xx
- Package/Case:
- 100-LQFP
- Packaging:
- Tape & Reel (TR)
- 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-2186MBSTZ266R FAQ
1.How can I place an order for ADSP-2186MBSTZ266R through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-2186MBSTZ266R 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-2186MBSTZ266R reliable?
The price and inventory of ADSP-2186MBSTZ266R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-2186MBSTZ266R is usually 5 days.
3.What payment methods are accepted for ADSP-2186MBSTZ266R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-2186MBSTZ266R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-2186MBSTZ266R?
ADSP-2186MBSTZ266R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-2186MBSTZ266R 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-2186MBSTZ266R?
For technical support, including ADSP-2186MBSTZ266R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-2186MBSTZ266R requirements.
6.How does Aetrix verify that ADSP-2186MBSTZ266R is sourced from the original manufacturer or authorized distributors?
All ADSP-2186MBSTZ266R 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-2186MBSTZ266R meets industry standards.
7.What is the process for return or replacement of ADSP-2186MBSTZ266R?
All ADSP-2186MBSTZ266R units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-2186MBSTZ266R, 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-2186MBSTZ266R part is unused and in its original packaging.
Return procedure for ADSP-2186MBSTZ266R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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