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Analog Devices Inc. ADSP-2188MBSTZ-266
- Part No.:
- ADSP-2188MBSTZ-266
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 100-LQFP
- Datasheet:
-
ADSP-2188MBSTZ-266.pdf
- Description:
- IC DSP CONTROLLER 16BIT 100LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ADSP-2188MBSTZ-266 from Analog Devices is a 75 MIPS fixed-point DSP microcomputer with 48K × 24-bit on-chip program RAM, 56K × 16-bit data RAM, and dual synchronous serial ports (SPORT0/SPORT1), designed for real-time audio processing, telecom infrastructure, and embedded control systems requiring deterministic low-latency computation.
For engineers reviewing the ADSP-2188MBSTZ-266 datasheet, ADSP-2188MBSTZ-266 pinout, ADSP-2188MBSTZ-266 application, or ADSP-2188MBSTZ-266 equivalent, key selection criteria include instruction cycle time (13.3 ns), internal DMA port support, byte DMA capability, 100-lead LQFP package compatibility, and ICE-Port™ debug interface integration.
Technical Context
The ADSP-2188MBSTZ-266 implements the ADSP-2100 base architecture with three independent computational units (ALU, MAC, shifter), two dedicated DAGs for circular buffer addressing, and zero-overhead looping via hardware loop counters. Its 3-bus architecture enables simultaneous dual operand fetches - one from program memory and one from data memory - in every instruction cycle.
It supports full memory mode (14-bit address bus, 24-bit data bus) and host mode (16-bit multiplexed IDMA bus), with configurable external memory interfaces including 4 MB byte memory space, I/O memory space (2048 locations), and programmable wait states. Serial ports provide hardware A-law/µ-law companding per CCITT G.711 and multichannel TDM support on SPORT0.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | ADSP-2100 family base with ALU, MAC, shifter, two DAGs, and program sequencer - enables parallel data moves and computation in single cycle |
| Performance | 75 MIPS sustained @ 2.75 V, 13.3 ns instruction cycle - guarantees deterministic real-time execution for audio and control loops |
| On-Chip Memory | 48K × 24-bit program RAM + 56K × 16-bit data RAM - eliminates external program ROM dependency and supports overlay-based firmware updates |
| Serial Interfaces | Two double-buffered SPORTs with hardware companding, frame sync flexibility, and multichannel TDM on SPORT0 - reduces codec interface complexity in voice systems |
| System Interface | 16-bit internal DMA port (IDMA), byte DMA controller, 13 programmable flag pins, six external interrupts - enables glueless connection to peripherals and external memory |
| Power Management | Power-down mode with 200 CLKIN-cycle wake-up, idle/slow-idle modes - meets battery-operated portable equipment requirements |
| Package | 100-lead LQFP (ST-100), 0.5 mm pitch - compatible with standard surface-mount assembly and thermal management for industrial environments |
Pinout & Package
ADSP-2188MBSTZ-266 is housed in a 100-lead LQFP (ST-100) package with 0.5 mm lead pitch, exposed thermal pad, and standard JEDEC MO-220 footprint. Pin functions are mode-dependent: Full Memory Mode (Mode C = 0) uses A13:A0 and D23:D0 for external memory access; Host Mode (Mode C = 1) repurposes pins for 16-bit IDMA bus (IAD15:IAD0), IWR, IRD, IAL, IS, and IACK.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Asynchronous processor reset input | Active-low signal that initializes all registers, clears memory pointers, and forces boot sequence - must be held low ≥ 100 ns after power stabilization |
| CLKIN / XTAL | Clock source input | Accepts 2.75 V CMOS clock or 26.6 MHz crystal (for 75 MHz core); CLKOUT provides buffered output for system synchronization |
| A13:A0 (Full Memory Mode) | External address bus outputs | Drives 14-bit address for program/data/byte/I/O spaces - supports up to 4 MB external memory with programmable wait states |
| D23:D0 (Full Memory Mode) | Bidirectional data bus | 24-bit wide interface for program/data transfers; upper 8 bits (D23:D16) serve as byte memory address bits in BDMA operations |
| SPORT0 / SPORT1 | Synchronous serial I/O pairs | Each includes SCLK, RFS, TFS, DR, DT - supports independent framing, 3–16 bit word lengths, and hardware µ/A-law companding per G.711 |
| PWD / PWDACK | Power-down control interface | PWD initiates low-power state; PWDACK confirms entry - enables rapid recovery (200 cycles) without register loss or memory corruption |
| EZ-Port (9-pin) | ICE-Port™ emulation interface | Provides non-intrusive in-circuit debugging: breakpoint support, register/memory inspection, and instruction-level boot emulation - no target board modification required |
Key Features
| Feature | Design Value |
|---|---|
| Single-cycle instruction execution | Every instruction completes in one 13.3 ns cycle - ensures predictable timing for hard real-time control loops and audio sample processing |
| Dual SPORTs with hardware companding | Reduces CPU overhead by offloading A-law/µ-law encoding/decoding - eliminates need for external codec in voice-band applications |
| Byte DMA controller (BDMA) | Enables transparent 8-bit transfers between external EPROM/flash and on-chip memory - supports automatic booting and overlay loading without CPU intervention |
| Programmable 16-bit interval timer | Generates precise periodic interrupts using TCOUNT/TPERIOD registers and TSCALE prescaler - ideal for sampling rate timing and watchdog supervision |
| 13 programmable flag pins | Eight bidirectional (PF7–PF0), three output-only (FL0–FL2) - provide flexible system signaling for status indication, peripheral handshaking, and interrupt generation |
| ICE-Port™ debug interface | 14-pin dedicated emulation port with full EZ-ICE® compatibility - allows debugging in final hardware without socket or probe adapters |
Applications
| Voice Band Codec Interface | Industrial Motor Control |
|---|---|
|
Use Scenario: Real-time voice compression/decompression in VoIP gateways and PBX systems using AD73322 or similar codecs. IC Role / Device Role / Timing Role: Primary DSP executing G.729/G.723.1 algorithms with SPORT0/SPORT1 handling full-duplex 8 kHz PCM streams and hardware companding. Use Value: Eliminates external compander ICs and reduces BOM cost while maintaining <100 µs algorithm latency due to 75 MIPS throughput and zero-overhead loops. |
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase AC induction motors in HVAC and pump drives. IC Role / Device Role / Timing Role: Real-time execution of Park/Clarke transforms, PI current regulators, and SVM PWM generation at 20 kHz switching frequency. Use Value: On-chip 48K program RAM stores optimized motor control libraries; 56K data RAM buffers ADC samples and PWM timing registers - avoids external SRAM latency. |
| Telecom Line Card Processing | Portable Medical Signal Analyzer |
|
Use Scenario: Channelized T1/E1 line card supporting 24-channel echo cancellation and tone detection in central office equipment. IC Role / Device Role / Timing Role: Multichannel DSP using SPORT0's TDM interface to receive/transmit 24 × 64 kbps DS0 streams; IDMA port connects to FPGA for framing logic. Use Value: Dual SPORTs handle simultaneous transmit/receive with independent framing; 100-lead LQFP enables compact PCB layout in space-constrained line cards. |
Use Scenario: Battery-powered ECG/EEG analyzer performing real-time QRS detection, spectral analysis, and waveform compression. IC Role / Device Role / Timing Role: Low-power DSP executing adaptive filtering and FFT routines during patient monitoring; power-down mode extends battery life between measurements. Use Value: 200-cycle wake-up from power-down preserves context across measurement intervals; on-chip RAM avoids volatile external memory refresh current. |
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 | Lower speed grade (120 MHz core clock → 60 MIPS), identical memory map and pinout in 100-LQFP | Reduced computational headroom for multi-channel audio or high-frequency motor control | Select when 60 MIPS suffices and lower power consumption is prioritized over peak throughput |
| TMS320VC5402PGE100 | TI C54x architecture; 100 MIPS @ 100 MHz, 32K × 16-bit RAM, different instruction set and peripheral set | No native SPORT companding; requires software implementation of G.711; separate McBSP interface | Choose for legacy C54x codebase compatibility or TI ecosystem toolchain preference, not drop-in replacement |
Compared with ADSP-2188MBSTZ-266, the ADSP-2189MSTZ-120 offers identical architecture and footprint at reduced speed, while the TMS320VC5402PGE100 requires full software porting and lacks hardware companding - making ADSP-2188MBSTZ-266 optimal for G.711-based voice systems needing guaranteed 75 MIPS throughput.
Availability
ADSP-2188MBSTZ-266 is available at Aetrix Electronics and suitable for voice codec interfaces, industrial motor controllers, telecom line cards, and portable medical analyzers requiring stable component supply across extended production lifecycles.
Supply support for ADSP-2188MBSTZ-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 digital signal processing semiconductors, founded in 1965 and headquartered in Wilmington, MA.
The ADSP-2188MBSTZ-266 belongs to the ADSP-2100 family of fixed-point DSPs, engineered for deterministic real-time signal processing in resource-constrained embedded systems where low latency, on-chip memory integration, and debug accessibility are critical.
FAQ
What is the maximum operating frequency and instruction throughput of the ADSP-2188MBSTZ-266?
The ADSP-2188MBSTZ-266 operates at a 75 MHz core clock (26.6 MHz crystal × 2.82 PLL multiplier), delivering 75 MIPS sustained performance with a 13.3 ns instruction cycle time. Every instruction executes in a single cycle, including ALU, MAC, and shifter operations, enabling deterministic real-time behavior essential for audio and control applications. This throughput is confirmed in the datasheet's "Performance" section and verified under recommended 2.75 V operating conditions.
Does the ADSP-2188MBSTZ-266 support hardware-based A-law and µ-law companding?
Yes, the ADSP-2188MBSTZ-266 integrates dedicated hardware companding engines within both SPORT0 and SPORT1, compliant with CCITT G.711 for A-law and µ-law encoding/decoding. This feature operates transparently during serial data transfer without CPU intervention, reducing processing load and eliminating the need for external compander ICs in voice-band applications such as VoIP terminals and digital telephony systems.
What package type and pin count does the ADSP-2188MBSTZ-266 use?
The ADSP-2188MBSTZ-266 is supplied in a 100-lead LQFP (ST-100) package with 0.5 mm lead pitch and an exposed thermal pad. It is pin-compatible with other ADSP-218xM variants in the same LQFP format, enabling design reuse across speed grades. The datasheet confirms this package in the "ORDERING GUIDE" and "100-LEAD LQFP PIN CONFIGURATION" sections, and it is distinct from the 144-ball Mini-BGA option.
Can the ADSP-2188MBSTZ-266 boot directly from external byte-wide memory?
Yes, the ADSP-2188MBSTZ-266 supports automatic booting from external byte-wide memory (e.g., EPROM or flash) via its Byte DMA (BDMA) controller. During reset, the device loads the boot vector and initial program code into on-chip program RAM without CPU involvement. This capability is documented in the "Bootstrap Loading (Booting)" section and enables field-upgradable firmware without requiring external boot ROM programming tools.
What debug interface does the ADSP-2188MBSTZ-266 provide for in-circuit development?
The ADSP-2188MBSTZ-266 features a dedicated 14-pin ICE-Port™ interface (labeled EZ-Port in pin tables) supporting full EZ-ICE® emulator functionality. This includes up to 20 breakpoints, register/memory inspection, instruction-level boot emulation, and C source-level debugging - all without removing the device from the target board. The interface is electrically and mechanically defined in the "PIN DESCRIPTIONS" and "DESIGNING AN EZ-ICE-COMPATIBLE SYSTEM" sections of the datasheet.
ADSP-2188MBSTZ-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:
- 256kB
- 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-2188MBSTZ-266 FAQ
1.How can I place an order for ADSP-2188MBSTZ-266 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-2188MBSTZ-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-2188MBSTZ-266 reliable?
The price and inventory of ADSP-2188MBSTZ-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-2188MBSTZ-266 is usually 5 days.
3.What payment methods are accepted for ADSP-2188MBSTZ-266?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-2188MBSTZ-266 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-2188MBSTZ-266?
ADSP-2188MBSTZ-266 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-2188MBSTZ-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-2188MBSTZ-266?
For technical support, including ADSP-2188MBSTZ-266 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-2188MBSTZ-266 requirements.
6.How does Aetrix verify that ADSP-2188MBSTZ-266 is sourced from the original manufacturer or authorized distributors?
All ADSP-2188MBSTZ-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-2188MBSTZ-266 meets industry standards.
7.What is the process for return or replacement of ADSP-2188MBSTZ-266?
All ADSP-2188MBSTZ-266 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-2188MBSTZ-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-2188MBSTZ-266 part is unused and in its original packaging.
Return procedure for ADSP-2188MBSTZ-266:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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