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Analog Devices Inc. ADSP-2189NBSTZ-320
- Part No.:
- ADSP-2189NBSTZ-320
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 100-LQFP
- Datasheet:
-
ADSP-2189NBSTZ-320.pdf
- Description:
- IC DSP CONTROLLER 16BIT 100-LQFP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ADSP-2189NBSTZ-320 from Analog Devices is a 32K-word program RAM / 48K-word data RAM fixed-point DSP microcomputer optimized for real-time signal processing in embedded audio, telecom, and industrial control systems. It delivers 80 MIPS sustained performance at 12.5 ns instruction cycle time (1.8 V core), features dual serial ports with hardware companding, 16-bit internal DMA port, and programmable 16-bit interval timer.
For engineers reviewing the ADSP-2189NBSTZ-320 datasheet, ADSP-2189NBSTZ-320 pinout, ADSP-2189NBSTZ-320 application, or ADSP-2189NBSTZ-320 equivalent, key selection criteria include on-chip memory configuration (32K × 24-bit PM / 48K × 16-bit DM), LQFP-100 package compatibility, 1.8 V core voltage operation, ICE-Port™ debug interface support, and boot-from-byte-memory capability via BDMA.
Technical Context
The ADSP-2189NBSTZ-320 implements the ADSP-2100 base architecture with three independent computational units (ALU, MAC, shifter), two dedicated DAGs, and a zero-overhead program sequencer. Its 3-bus Harvard architecture enables simultaneous dual operand fetches - one from program memory and one from data memory - in every instruction cycle.
It supports full memory mode and host mode via Mode A–D pins, with configurable boot sources including byte-wide external memory (EPROM) or internal DMA port loading. Power management includes hardware/software-initiated power-down (200 CLKIN-cycle recovery), idle, and slow-idle modes with programmable clock divisors (16/32/64/128).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Voltage | 1.8 V - Enables low-power operation while maintaining 80 MIPS throughput; requires separate 3.3 V I/O supply. |
| Instruction Cycle Time | 12.5 ns - Corresponds to 80 MHz internal instruction rate; achieved with 40 MHz external CLKIN or crystal. |
| On-Chip Program Memory | 32K words × 24-bit - Configurable as instruction or data storage; supports dual-operand fetch per cycle. |
| On-Chip Data Memory | 48K words × 16-bit - Dedicated data RAM with automatic modulo addressing for circular buffers. |
| Serial Ports | 2 × SPORT - Each supports 3–16-bit word length, A-law/μ-law companding, frame sync, and double-buffered TX/RX. |
| Timer | 16-bit programmable interval timer - Generates periodic interrupts with 8-bit prescaler (TSCALE) and reloadable period register. |
| Power-Down Recovery | 200 CLKIN cycles - Hardware- or software-triggered dormant state with context save/restore control. |
| I/O Voltage Support | 1.8 V / 2.5 V / 3.3 V - Flexible interface to mixed-voltage peripherals; all inputs tolerate up to 3.6 V. |
Pinout & Package
ADSP-2189NBSTZ-320 is housed in a 100-lead LQFP (14 mm × 14 mm, 0.5 mm pitch) package with exposed thermal pad. Pin functions are defined across five functional groups: memory interface (PMA/PMD/DMA/DMD buses), serial I/O (SPORT0/SPORT1), flag I/O (PF0–PF7), system control (RESET, PWD, PWDACK, MODE A–D), and clocking (CLKIN, XTAL, CLKOUT).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN | Clock Input | Accepts 40 MHz TTL-compatible signal or crystal oscillator input; drives internal 80 MHz instruction clock. |
| RESET | Master Reset Input | Active-low asynchronous reset; holds processor in reset until internal clock stabilizes (~2000 cycles after power-up). |
| PWD / PWDACK | Power-Down Control / Acknowledge | PWD asserts low-power dormant state; PWDACK goes high when power-down is fully entered. |
| SPORT0_TFS / SPORT0_RFS | Transmit/Receive Frame Sync | Configurable active-high frame sync signals for synchronous serial framing; support external or internal generation. |
| PF0–PF7 | Programmable Flag I/O | 13 total flags (including SPORT1 reconfigurable pins); 8 bidirectional, 3 output-only, used for system signaling or IRQ mapping. |
| MODE A–D | Boot Configuration Inputs | Determine boot source (BDMA/IDMA), memory mode (Full/Host), and IACK drive type during reset. |
Key Features
| Feature | Design Value |
|---|---|
| Single-cycle instruction execution | Enables deterministic 12.5 ns latency per operation - critical for real-time audio sample processing and control loop timing. |
| Dual-operand fetch per cycle | Leverages 3-bus architecture to load instruction + two data operands simultaneously - eliminates pipeline stalls in FIR/IIR filtering. |
| Hardware companding (A-law/μ-law) | Offloads G.711-compliant voice encoding/decoding from firmware - reduces CPU load in telephony gateways and VoIP endpoints. |
| ICE-Port™ emulator interface | Enables non-intrusive debugging in final-system environments without halting real-time I/O or DMA transfers. |
| Zero-overhead looping | Eliminates branch penalty in repetitive algorithms (e.g., FFT butterflies, filter taps) using internal loop counters and stack. |
| Byte DMA port (BDMA) | Directly addresses up to 4 MB of external byte-wide memory for program overlays or coefficient tables - enables scalable code size beyond on-chip limits. |
Applications
| Voice Processing Gateway | Industrial Motor Control |
|---|---|
|
Use Scenario: Real-time echo cancellation and DTMF detection in PSTN-to-SIP gateways with analog line interfaces. IC Role / Device Role / Timing Role: Primary signal processor executing adaptive filters and tone detection algorithms with sub-125 μs latency per 128-sample frame. Use Value: On-chip 48K-word data RAM stores filter coefficients and circular buffers; dual SPORTs handle simultaneous TDM voice streams and control channel signaling. |
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 PWM modulation generator and current/voltage observer running at 10–20 kHz switching frequency. Use Value: 80 MIPS throughput executes Clarke/Park transforms and PI regulators within 5 μs; programmable timer synchronizes ADC sampling and PWM updates. |
| Digital Audio Effects Processor | Test & Measurement Signal Generator |
|
Use Scenario: Low-latency multi-effects unit (reverb, chorus, distortion) for guitar and vocal processing in live sound systems. IC Role / Device Role / Timing Role: Fixed-point DSP engine performing parallel biquad filtering and delay-line modulation with sample-accurate timing. Use Value: Dual SPORTs interface to stereo codec and auxiliary I/O; 32K-word program RAM hosts multiple effect algorithms loaded dynamically via BDMA. |
Use Scenario: Portable arbitrary waveform generator producing calibrated sine, square, and modulated RF test signals up to 20 MHz. IC Role / Device Role / Timing Role: Waveform synthesis controller generating precise timing triggers and DAC update sequences synchronized to internal clock. Use Value: ICE-Port™ enables in-circuit calibration and firmware updates without removing the device; internal DMA port loads waveform tables from host MCU. |
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-2188NBSTZ-320 | 48K-word program RAM / 56K-word data RAM; identical architecture, pinout, and speed grade. | Better suited for larger algorithm footprints requiring >32K program memory (e.g., multi-band audio codecs). | Select when additional on-chip program memory is required without changing PCB layout or firmware toolchain. |
| TMS320VC5402PGE100 | 100 MIPS @ 3.3 V core; 16K × 16-bit RAM; different instruction set, no ICE-Port, 144-pin LQFP. | Higher raw MIPS but lacks hardware companding and integrated boot-from-EPROM capability. | Consider only if migrating legacy C54x codebase; requires full hardware redesign and toolchain requalification. |
Compared with ADSP-2189NBSTZ-320, ADSP-2188NBSTZ-320 offers more on-chip memory for complex algorithms while maintaining drop-in compatibility, whereas TMS320VC5402PGE100 provides higher clock speed but demands significant system-level redesign due to incompatible packaging, voltage, and debug infrastructure.
Availability
ADSP-2189NBSTZ-320 is available at Aetrix Electronics and suitable for voice gateway development, industrial motor control systems, digital audio effects processing, and portable test equipment requiring stable component supply and long-term lifecycle support.
Supply support for ADSP-2189NBSTZ-320 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, headquartered in Norwood, MA, with design centers worldwide and ISO 9001-certified manufacturing.
The ADSP-218xN series was designed specifically for cost-sensitive, low-power embedded signal processing applications requiring deterministic real-time performance, on-chip memory integration, and flexible system interfacing - especially in telecom, audio, and industrial automation.
FAQ
What is the core supply voltage requirement for ADSP-2189NBSTZ-320?
The ADSP-2189NBSTZ-320 requires a 1.8 V ± 0.1 V core supply (VDDINT) for proper operation at its rated 80 MIPS performance. An additional 3.3 V supply (VDDIO) powers the I/O bank, and all digital inputs tolerate up to 3.6 V regardless of VDDIO level. Using 1.8 V enables the low-power dissipation specified in the datasheet - critical for battery-powered or thermally constrained designs using ADSP-2189NBSTZ-320.
Does ADSP-2189NBSTZ-320 support automatic boot from external memory?
Yes, ADSP-2189NBSTZ-320 supports automatic boot from byte-wide external memory (e.g., EPROM) using its Byte DMA (BDMA) port. When configured in Mode C = 0 and Mode A = 0, the device loads the first 32 words of program memory from byte memory space before beginning execution. This feature eliminates the need for external boot ROM controllers and simplifies system initialization in standalone ADSP-2189NBSTZ-320-based designs.
How many external interrupts does ADSP-2189NBSTZ-320 support?
The ADSP-2189NBSTZ-320 supports up to six external interrupts: four dedicated pins (IRQ2, IRQL0, IRQL1, IRQE) plus two additional interrupt-capable pins (IRQ0, IRQ1) that share functions with SPORT1 I/O lines (RFS1/TFS1). IRQ2, IRQ0, and IRQ1 can be configured as either edge- or level-sensitive, while IRQL0 and IRQL1 are level-sensitive and IRQE is edge-sensitive - providing flexible real-time event handling in ADSP-2189NBSTZ-320 systems.
Is ADSP-2189NBSTZ-320 pin-compatible with other ADSP-218xN devices?
Yes, all ADSP-218xN series members - including ADSP-2189NBSTZ-320 - are fully pin-compatible within the same package variant (LQFP-100 or BGA-144). This allows direct substitution between ADSP-2184N through ADSP-2189N based on on-chip memory requirements, without PCB layout changes. The ADSP-2189NBSTZ-320 shares identical pinout, electrical characteristics, and timing specifications with other LQFP-100 ADSP-218xN variants.
What debug interface does ADSP-2189NBSTZ-320 provide?
The ADSP-2189NBSTZ-320 integrates the ICE-Port™ emulator interface, a proprietary Analog Devices debug architecture supporting non-intrusive real-time tracing, breakpoint insertion, and register/memory inspection - even while serial ports and DMA channels remain fully operational. This enables robust in-system validation of time-critical firmware without disrupting signal flow, making ICE-Port™ essential for reliable development of production-grade ADSP-2189NBSTZ-320 applications.
ADSP-2189NBSTZ-320 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:
- 80MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 192kB
- Voltage - I/O:
- 1.8V, 2.5V, 3.3V
- Voltage - Core:
- 1.90V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 100-LQFP (14x14)
ADSP-2189NBSTZ-320 FAQ
1.How can I place an order for ADSP-2189NBSTZ-320 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-2189NBSTZ-320 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-2189NBSTZ-320 reliable?
The price and inventory of ADSP-2189NBSTZ-320 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-2189NBSTZ-320 is usually 5 days.
3.What payment methods are accepted for ADSP-2189NBSTZ-320?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-2189NBSTZ-320 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-2189NBSTZ-320?
ADSP-2189NBSTZ-320 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-2189NBSTZ-320 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-2189NBSTZ-320?
For technical support, including ADSP-2189NBSTZ-320 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-2189NBSTZ-320 requirements.
6.How does Aetrix verify that ADSP-2189NBSTZ-320 is sourced from the original manufacturer or authorized distributors?
All ADSP-2189NBSTZ-320 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-2189NBSTZ-320 meets industry standards.
7.What is the process for return or replacement of ADSP-2189NBSTZ-320?
All ADSP-2189NBSTZ-320 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-2189NBSTZ-320, 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-2189NBSTZ-320 part is unused and in its original packaging.
Return procedure for ADSP-2189NBSTZ-320:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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