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Analog Devices Inc. ADSP-2186MKST-300
- Part No.:
- ADSP-2186MKST-300
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 100-LQFP
- Datasheet:
-
ADSP-2186MKST-300.pdf
- Description:
- IC DSP CONTROLLER 16BIT 100LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:431
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Product details
Overview
ADSP-2186MKST-300 from Analog Devices is a 24-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 features dual synchronous serial ports (SPORT0/SPORT1), a 16-bit internal DMA port, and programmable 16-bit interval timer.
For engineers reviewing the ADSP-2186MKST-300 datasheet, ADSP-2186MKST-300 pinout, ADSP-2186MKST-300 application, or ADSP-2186MKST-300 equivalent, this page provides verified architecture details, memory mapping, serial interface timing, low-power operation modes (Power-Down/Idle), and LQFP-100 package-specific I/O configuration - all critical for boot loader design, real-time interrupt latency analysis, and multi-processor serial synchronization.
Technical Context
The ADSP-2186MKST-300 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 nested loops. Its 3-bus architecture enables simultaneous dual operand fetches - one from program memory and one from data memory - within every instruction cycle.
It supports two distinct system interface modes: Full Memory Mode (Mode C = 0) with 14-bit external address bus (A13:A0) and 24-bit bidirectional data bus (D23:D0), and Host Mode (Mode C = 1) using a multiplexed 16-bit IDMA port (IAD15:IAD0) with dedicated control signals (IWR, IRD, IAL, IS, IACK). Serial port framing, companding (A-law/µ-law), and multichannel TDM support are hardware-accelerated.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | ADSP-2100 family 24-bit fixed-point DSP with ALU, MAC, and Shifter computational units |
| Performance | 75 MIPS sustained; 13.3 ns instruction cycle time at 2.5 V core supply |
| On-Chip Memory | 8K × 24-bit program RAM + 8K × 16-bit data RAM - enables full algorithm execution without external memory |
| Serial Interfaces | Two independent SPORTs (SPORT0/SPORT1) with hardware companding, frame sync flexibility, and 3–16 bit word length |
| Timer | 16-bit programmable interval timer with 8-bit prescaler (TSCALE) and auto-reload from TPERIOD register |
| Power Modes | Power-Down mode with 200 CLKIN-cycle wake-up; Idle and Slow Idle modes for dynamic power scaling |
| Operating Voltage | 2.5 V core (VDDINT); 2.5 V or 3.3 V I/O (VDDEXT); all inputs tolerate up to 3.6 V |
Pinout & Package
ADSP-2186MKST-300 is packaged in a 100-lead LQFP (ST-100) with 0.5 mm pitch. Pin functions are mode-dependent: Full Memory Mode (Mode C = 0) uses A13:A0 and D23:D0 for external memory interfacing, while Host Mode (Mode C = 1) repurposes pins for the 16-bit IDMA port (IAD15:IAD0) and control signals (IWR, IRD, IAL, IS, IACK). Serial port, flag, and interrupt pins are software-configurable and retain dual functionality (e.g., RFS1/IRQ0, DT1/FO).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Asynchronous processor reset input | Active-low signal initializing program counter, registers, and memory controllers; sampled synchronously on CLKIN edge |
| CLKIN / XTAL | System clock source input | Accepts crystal (1–40 MHz) or external clock; drives internal PLL-free 2.5 V core timing domain |
| A13:A0 (Mode C = 0) | External address bus outputs | Drive 16 MB address space for program/data/byte/I/O memory mapping; shared with IDMA in Host Mode |
| D23:D0 (Mode C = 0) | Bidirectional data bus | Transfers 24-bit program words or 16-bit data words; upper 8 bits (D23:D16) serve as byte memory address bits in BDMA mode |
| IAD15:IAD0 (Mode C = 1) | IDMA address/data multiplexed bus | Enables glueless host-DSP communication; requires external latch on IAL to separate address/data phases |
| SPORT0 / SPORT1 | Synchronous serial I/O interface | Each includes SCLKx, RFSx, TFSx, DRx, DTx pins; supports independent framing, companding, and circular buffer DMA |
| PF7:PF0 | Programmable flag I/O | 13 total flags: 8 software-configurable I/O, 3 dedicated outputs (FL0–FL2), and 2 SPORT1 pins (FI/FO) reconfigurable as flags |
Key Features
| Feature | Design Value |
|---|---|
| Single-cycle instruction execution | Every instruction completes in one 13.3 ns cycle - eliminates pipeline stalls for deterministic real-time response |
| Dual-operand fetch per cycle | 3-bus architecture allows simultaneous access to program memory (instruction) and data memory (operand) - essential for FIR/IIR filter throughput |
| Zero-overhead looping | Hardware loop counters and stack enable infinite loops without branch penalty - reduces cycle count in FFT and convolution kernels |
| ICE-Port™ emulation interface | 14-pin dedicated debug port supporting in-circuit emulation, breakpoint insertion, and real-time register/memory inspection without target board modification |
| Byte DMA controller (BDMA) | Direct 8-bit memory access to 4 MB external space - enables transparent program overlay loading and data table streaming without CPU intervention |
| Flexible interrupt prioritization | 11 interrupts (6 external, 5 internal) with individually maskable vectors and configurable edge/level sensitivity on IRQ2/IRQ0/IRQ1 |
Applications
| Audio Signal Processing | Telecom Line Card |
|---|---|
|
Use Scenario: Real-time echo cancellation and noise suppression in VoIP gateways and IP phones. IC Role / Device Role / Timing Role: Primary DSP executing adaptive filtering algorithms with sub-100 µs interrupt latency on receive path. Use Value: On-chip 8K × 24-bit program RAM stores coefficient tables and filter state; dual SPORTs handle simultaneous codec interface and TDM backplane traffic. |
Use Scenario: Channelized T1/E1 line interface with CAS/CCS signaling and HDLC framing. IC Role / Device Role / Timing Role: Baseband processor managing time-slot assignment, CRC generation, and alarm monitoring across 24/30 channels. Use Value: Hardware companding (G.711) offloads CPU; SPORT0 configured for multichannel TDM (24/32-word frames) while SPORT1 handles maintenance channel. |
| Industrial Motor Control | Medical Ultrasound Beamforming |
|
Use Scenario: Closed-loop field-oriented control (FOC) of PMSM/BLDC motors in servo drives. IC Role / Device Role / Timing Role: Real-time current/voltage sampling, Clarke/Park transforms, and PWM modulation update at 10–20 kHz switching frequency. Use Value: Zero-overhead loops ensure deterministic execution of motor control kernels; 16-bit timer generates precise PWM dead-time and ADC trigger events. |
Use Scenario: Digital beam synthesis and RF envelope detection in portable ultrasound scanners. IC Role / Device Role / Timing Role: High-throughput FIR filtering and envelope demodulation of 12–15 MHz echo return signals. Use Value: 75 MIPS performance sustains >100 MOPS for parallel channel processing; on-chip RAM avoids external memory bottlenecks in time-critical delay lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DSP microcomputer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-2189MKSTZ-300 | Higher clock speed (75 MHz vs. 75 MIPS nominal), identical architecture and pinout, but rated for extended temperature range (−40°C to +105°C) | Preferred for automotive or industrial environments requiring wider thermal margin | Select when operating ambient exceeds 85°C or long-term reliability under thermal cycling is critical |
| TMS320C549PGE | 16-bit fixed-point DSP with 100 MIPS peak, different instruction set, no native 24-bit program memory, and no ICE-Port interface | Requires full software porting; lacks hardware companding and multichannel SPORT TDM support | Consider only if existing C54x toolchain and codebase exist, and serial interface requirements are minimal |
Compared with ADSP-2186MKST-300, the ADSP-2189MKSTZ-300 offers identical functionality with extended temperature qualification, while the TMS320C549PGE demands architectural rework and loses key signal-processing accelerators - making the ADSP-2186MKST-300 optimal for legacy ADSP-2100 ecosystem integration and hardware-accelerated serial I/O.
Availability
ADSP-2186MKST-300 is available at Aetrix Electronics and suitable for audio codec interfaces, telecom line cards, industrial motor drives, and medical imaging subsystems requiring stable component supply across extended production lifecycles.
Supply support for ADSP-2186MKST-300 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 digital signal processing semiconductors, founded in 1965 and headquartered in Wilmington, MA.
The ADSP-2186MKST-300 belongs to the ADSP-2100 family of single-chip DSP microcomputers designed for cost-sensitive, real-time embedded signal processing where deterministic latency, on-chip memory density, and hardware-accelerated serial I/O are critical.
FAQ
What is the maximum external memory address space supported by ADSP-2186MKST-300 in Full Memory Mode?
The ADSP-2186MKST-300 supports up to 4 MB of external byte memory via its Byte DMA (BDMA) controller and 16 MB of general-purpose memory through the 14-bit external address bus (A13:A0) in Full Memory Mode. This allows direct access to large data tables, program overlays, and I/O peripherals without external address latching.
Does ADSP-2186MKST-300 support hardware-based A-law and µ-law companding?
Yes, the ADSP-2186MKST-300 implements hardware companding per CCITT G.711 standard on both SPORT0 and SPORT1. Companding is enabled per-port via control registers and operates transparently during serial data transfer - eliminating CPU overhead for voice codec preprocessing.
How does the Power-Down mode of ADSP-2186MKST-300 recover, and what is the wake-up latency?
The ADSP-2186MKST-300 exits Power-Down mode after exactly 200 CLKIN cycles upon assertion of the PWDACK signal. During recovery, the internal clock domain stabilizes and the processor resumes execution from the instruction following the IDLE instruction that initiated Power-Down - ensuring predictable low-power timing behavior in battery-operated systems.
Can ADSP-2186MKST-300 execute instructions from external memory?
No, the ADSP-2186MKST-300 executes all instructions exclusively from its on-chip 8K × 24-bit program RAM. External memory is accessible only for data transfers (via BDMA, IDMA, or full memory read/write) and boot loading - instruction fetch is strictly internal to guarantee deterministic timing and eliminate external bus contention.
What are the key differences between Host Mode and Full Memory Mode on ADSP-2186MKST-300?
In Full Memory Mode (Mode C = 0), ADSP-2186MKST-300 exposes discrete A13:A0 and D23:D0 buses for conventional memory-mapped peripheral interfacing. In Host Mode (Mode C = 1), it uses a multiplexed 16-bit IDMA port (IAD15:IAD0) with dedicated control signals (IWR/IRD/IAL/IS/IACK) for high-speed, glueless communication with an external host processor - trading external memory expansion for simplified system integration.
ADSP-2186MKST-300 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- ADSP-21xx
- Package/Case:
- 100-LQFP
- Packaging:
- Bag
- Product Status:
- Obsolete
- Type:
- Fixed Point
- Interface:
- Host Interface, Serial Port
- Clock Rate:
- 75MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 40kB
- Voltage - I/O:
- 3.30V
- Voltage - Core:
- 2.50V
- Operating Temperature:
- 0°C ~ 70°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-LQFP (14x14)
ADSP-2186MKST-300 FAQ
1.How can I place an order for ADSP-2186MKST-300 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-2186MKST-300 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-2186MKST-300 reliable?
The price and inventory of ADSP-2186MKST-300 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-2186MKST-300 is usually 5 days.
3.What payment methods are accepted for ADSP-2186MKST-300?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-2186MKST-300 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-2186MKST-300?
ADSP-2186MKST-300 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-2186MKST-300 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-2186MKST-300?
For technical support, including ADSP-2186MKST-300 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-2186MKST-300 requirements.
6.How does Aetrix verify that ADSP-2186MKST-300 is sourced from the original manufacturer or authorized distributors?
All ADSP-2186MKST-300 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-2186MKST-300 meets industry standards.
7.What is the process for return or replacement of ADSP-2186MKST-300?
All ADSP-2186MKST-300 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-2186MKST-300, 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-2186MKST-300 part is unused and in its original packaging.
Return procedure for ADSP-2186MKST-300:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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