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Analog Devices Inc. ADSP-2189MBCA-266
- Part No.:
- ADSP-2189MBCA-266
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 144-LFBGA
- Datasheet:
-
ADSP-2189MBCA-266.pdf
- Description:
- IC DSP CONTROLLER 16BIT 144MBGA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
ADSP-2189MBCA-266 from Analog Devices is a 24-bit fixed-point DSP microcomputer optimized for real-time digital signal processing in portable and low-power embedded systems. It integrates 32K × 24-bit program RAM, 48K × 16-bit data RAM, dual serial ports (SPORT0/SPORT1), a 16-bit internal DMA port, and a programmable 16-bit interval timer - all in a 100-lead LQFP package operating at 75 MIPS sustained performance with 13.3 ns instruction cycle time.
For engineers reviewing the ADSP-2189MBCA-266 datasheet, ADSP-2189MBCA-266 pinout, ADSP-2189MBCA-266 application, or ADSP-2189MBCA-266 equivalent, key selection criteria include on-chip memory configuration (32K/48K split), 2.5 V core voltage support, ICE-Port™ debug interface compatibility, and dual SPORT hardware companding per CCITT G.711 for audio codec interfacing.
Technical Context
The ADSP-2189MBCA-266 implements the ADSP-2100 base architecture with three parallel computational units (ALU, MAC, shifter), two dedicated DAGs for zero-overhead circular buffering, and a program sequencer supporting conditional execution and single-cycle subroutine calls. Its 3-bus Harvard architecture enables simultaneous dual operand fetches - one from program memory and one from data memory - within every instruction cycle.
It supports flexible system interfacing via Full Memory Mode (14-bit address, 24-bit data) or Host Mode (16-bit multiplexed IDMA bus), with programmable wait-state generation, byte DMA for EPROM booting, and UART emulation via SPORT reconfiguration. Power management includes hardware/software-initiated power-down with 200 CLKIN-cycle recovery, slow-idle mode with configurable clock divisors (16/32/64/128), and context-preserving wake-up.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | ADSP-2100 family 24-bit fixed-point DSP with ALU, MAC, and shifter executing in parallel |
| Performance | 75 MIPS sustained at 13.3 ns instruction cycle time (2.5 V core) |
| On-Chip Memory | 32K × 24-bit program RAM + 48K × 16-bit data RAM = 192 KB total, dual-purpose for code/data overlay |
| Serial Interfaces | Two independent double-buffered SPORTs with hardware A-law/µ-law companding per CCITT G.711 |
| Timer | 16-bit programmable interval timer with 8-bit prescaler (TSCALE) and auto-reload (TPERIOD) |
| Power Modes | Three low-power states: Power-Down (200-cycle wake), Idle, and Slow Idle (clock divisor 16–128) |
| Debug Interface | 14-pin ICE-Port™ supporting in-target emulation, up to 20 breakpoints, and C-source debugging |
Pinout & Package
ADSP-2189MBCA-266 is housed in a 100-lead LQFP (14 mm × 14 mm, 0.5 mm pitch) package with thermal pad. Pin functionality includes multiplexed serial port, flag, interrupt, and external bus signals - configured at RESET (mode pins) or runtime (SPORT/flag software control).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RESET | Master reset input | Active-low synchronous initialization; must be held low ≥2000 CLKIN cycles during power-up for PLL lock |
| CLKIN / XTAL | System clock input | Accepts 37.5 MHz crystal (fundamental parallel-resonant) or TTL-compatible half-rate clock (18.75 MHz) |
| SPORT0 / SPORT1 | Synchronous serial I/O | Each provides 5-pin bidirectional interface with frame sync, clock, data in/out, and optional IRQ/flag remapping |
| PF0–PF7 | Programmable flag I/O | 8 pins configurable as input/output; PF0–PF3 retain function during mode configuration; FL0–FL2 are dedicated outputs |
| IRQ2 / IRQL0 / IRQL1 / IRQE | External interrupt inputs | Four dedicated pins; IRQ2, IRQ0, IRQ1 (via SPORT1 remap) configurable edge/level-sensitive; IRQL0/IRQL1 level-only; IRQE edge-only |
| PWD / PWDACK | Power-down control | PWD initiates hardware power-down; PWDACK asserts when processor enters dormant state |
| BR / BG / BGH | Bus arbitration | Supports external bus master handoff: BR requests bus, BG grants, BGH indicates hung grant condition |
| MODE A–D | Configuration latches | Set Full Memory Mode (Mode C = 0) or Host Mode (Mode C = 1); sampled only at RESET |
Key Features
| Feature | Design Value |
|---|---|
| Single-cycle instruction execution | Enables deterministic real-time response: every instruction (including MAC, ALU, shifter ops) completes in 13.3 ns |
| Dual SPORT hardware companding | Eliminates external codec for telephony-grade voice: A-law/µ-law encoding/decoding performed in-line without CPU overhead |
| ICE-Port™ debug interface | Enables non-intrusive in-system debugging: full register/memory access, breakpoint control, and C-source stepping without target board modification |
| Byte DMA boot capability | Allows direct loading of program code from 8-bit EPROM/Flash at power-on, enabling cost-effective field-upgradable firmware storage |
| Zero-overhead looping | Hardware loop counters and stacks eliminate branch penalties: tight control loops execute with no instruction-cycle penalty |
| Flexible memory mapping | Supports "glueless" integration: programmable memory strobe, separate I/O space (2048 locations), and 4 MB external overlay addressing |
Applications
| Voice Communication Terminal | Digital Audio Processing System |
|---|---|
Use Scenario: Embedded VoIP gateway handling multiple concurrent G.711-encoded voice channels with echo cancellation and packetization. IC Role / Device Role / Timing Role: Primary DSP executing real-time codecs, FIR filters, and jitter buffer management using on-chip 48K data RAM for sample buffers. Use Value: Dual SPORTs with hardware companding offload 100% of A-law/µ-law conversion, freeing CPU cycles for algorithmic processing while maintaining sub-15 µs latency per channel. | Use Scenario: Portable stereo audio effects processor with real-time reverb, equalization, and dynamic range compression. IC Role / Device Role / Timing Role: Central audio DSP managing dual-channel 16-bit I²S input/output via SPORT0/SPORT1, using 32K program RAM for coefficient tables and 48K data RAM for sample delay lines. Use Value: 75 MIPS throughput and zero-overhead looping enable 32-tap FIR filters per channel at 48 kHz sampling rate with <100 ns jitter on timing-critical interrupt-driven I/O servicing. |
| Industrial Data Acquisition Node | Battery-Powered Telemetry Unit |
Use Scenario: Sensor fusion hub collecting synchronized analog inputs (vibration, temperature, pressure) and performing FFT-based spectral analysis. IC Role / Device Role / Timing Role: Real-time signal conditioner and analyzer using MAC unit for 1024-point FFTs and shifter for normalization, with timer-triggered ADC sampling. Use Value: 24-bit program word width ensures precise coefficient representation for high-dynamic-range filter design; internal DMA port enables high-speed transfer of raw sensor data into 48K data RAM without CPU intervention. | Use Scenario: Remote environmental monitor logging temperature/humidity data and transmitting compressed summaries over low-bandwidth RF link. IC Role / Device Role / Timing Role: Low-power controller executing sleep/wake cycles, sensor polling, and lightweight compression algorithms before RF transmission. Use Value: Power-down mode reduces active current to <100 µA with 200-cycle wake latency; slow-idle mode (IDLE(128)) extends battery life by slowing internal clocks while retaining full interrupt responsiveness for urgent sensor events. |
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-266 | Same die, but in 100-lead TQFP (non-LQFP) package with different thermal pad layout and moisture sensitivity level | Requires PCB redesign due to footprint and solder paste stencil differences; identical electrical behavior and memory map | Select when legacy board uses TQFP land pattern or requires alternate moisture sensitivity rating (MSL 3 vs MSL 2a for LQFP) |
| ADSP-2189MKSTZ-266 | Same silicon, extended temperature grade (–40°C to +105°C) versus commercial (0°C to +70°C) for ADSP-2189MBCA-266 | Required for under-hood automotive or industrial enclosures where ambient exceeds 70°C | Choose for high-temperature environments; otherwise, ADSP-2189MBCA-266 offers optimal cost/performance for commercial-grade designs |
Compared with ADSP-2189MBCA-266, the STZ variant changes only mechanical packaging and thermal rating - not instruction set, memory size, or peripheral functionality - while the KSTZ variant adds extended temperature operation at higher cost and qualification overhead.
Availability
ADSP-2189MBCA-266 is available at Aetrix Electronics and suitable for voice communication terminals, digital audio processors, industrial data acquisition nodes, and battery-powered telemetry units requiring stable component supply across multi-year production cycles.
Supply support for ADSP-2189MBCA-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, Inc. is a global semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, communications, and industrial applications.
The ADSP-21xx family - including ADSP-2189MBCA-266 - was designed for cost-sensitive, low-power embedded DSP applications demanding integrated memory, real-time I/O, and debug-ready architecture in compact packages.
FAQ
What clock source options does the ADSP-2189MBCA-266 support?
The ADSP-2189MBCA-266 accepts either a 37.5 MHz fundamental-mode crystal across CLKIN/XTAL pins or a TTL-compatible 18.75 MHz external clock applied to CLKIN only. The internal oscillator automatically configures for crystal operation when XTAL is connected; CLKOUT reflects the internal instruction rate (75 MHz) and can be disabled via SPORT0 Autobuffer Control Register bit CLKODIS.
Does the ADSP-2189MBCA-266 support in-system debugging without removing the chip?
Yes. The ADSP-2189MBCA-266 integrates on-chip ICE-Port™ emulation support with a 14-pin interface that enables full in-target debugging - including breakpoints, register inspection, memory read/write, and C-source stepping - without removing the device from the target board or adding adapters. The EZ-ICE® emulator connects directly to this port.
How is program code loaded into the ADSP-2189MBCA-266 at power-up?
The ADSP-2189MBCA-266 supports automatic booting from byte-wide external memory (e.g., EPROM or Flash) via its Byte DMA port. During reset, it reads boot code from address 0x000000 in byte memory space and transfers it into on-chip program RAM. Boot mode is selected by MODE pins and does not require external logic or host intervention.
Can the ADSP-2189MBCA-266 operate with both 2.5 V and 3.3 V I/O interfaces?
Yes. The ADSP-2189MBCA-266 uses a 2.5 V core supply (VDDINT) but supports 3.3 V tolerant I/O: all input pins accept voltages up to 3.6 V regardless of VDDEXT setting. VDDEXT may be set to 2.5 V or 3.3 V to match external peripheral voltage levels, enabling seamless interfacing with mixed-voltage systems.
What is the maximum external memory capacity supported by the ADSP-2189MBCA-266?
In Full Memory Mode, the ADSP-2189MBCA-266 supports up to 4 MB of external byte memory (via BDMA port) and separate 2048-location I/O memory space. Program and data memory overlays are accessible through A13:A0 and D23:D0 buses, with programmable wait-state generation allowing reliable interfacing with slow peripherals such as EEPROM or LCD controllers.
ADSP-2189MBCA-266 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- ADSP-21xx
- Package/Case:
- 144-LFBGA
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Fixed Point
- Interface:
- Host Interface, Serial Port
- Clock Rate:
- 66MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 192kB
- 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:
- 144-MiniBGA (10x10)
ADSP-2189MBCA-266 FAQ
1.How can I place an order for ADSP-2189MBCA-266 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-2189MBCA-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-2189MBCA-266 reliable?
The price and inventory of ADSP-2189MBCA-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-2189MBCA-266 is usually 5 days.
3.What payment methods are accepted for ADSP-2189MBCA-266?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-2189MBCA-266 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-2189MBCA-266?
ADSP-2189MBCA-266 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-2189MBCA-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-2189MBCA-266?
For technical support, including ADSP-2189MBCA-266 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-2189MBCA-266 requirements.
6.How does Aetrix verify that ADSP-2189MBCA-266 is sourced from the original manufacturer or authorized distributors?
All ADSP-2189MBCA-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-2189MBCA-266 meets industry standards.
7.What is the process for return or replacement of ADSP-2189MBCA-266?
All ADSP-2189MBCA-266 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-2189MBCA-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-2189MBCA-266 part is unused and in its original packaging.
Return procedure for ADSP-2189MBCA-266:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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