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ADSP-2181BSTZ-133
ADSP-2181BSTZ-133
| Part Number | ADSP-2181BSTZ-133 |
|---|---|
| Manufacturer | Analog Devices Inc. (ADI) |
| Category | Integrated Circuits (ICs) > Embedded – DSP (Digital Signal Processors) |
| Description | 16-Bit 20MHz 40 MIPS Fixed-Point Digital Signal Processor with 80KB On-Chip RAM, Dual Serial Ports, Host Interface Port (HIP), 5.0V Supply, 128-TQFP Package. |
| Stock Status | In Stock |
| Origin | Original Factory |
Product Overview
The ADSP-2181BSTZ-133 is a single-chip 16-bit fixed-point DSP from Analog Devices. Optimized for real-time signal processing and industrial control, it achieves 40 MIPS performance at 20 MHz, equipped with 80KB on-chip RAM. Integrated peripherals include dual serial ports, host interface port and DMA controller. Suitable for communication equipment, motor control and legacy embedded systems.
Core Advantages
High-Efficiency Single-Cycle DSP Core
Supports parallel operations in one clock cycle, offering 40 MIPS computing capability at 20 MHz for stable real-time algorithm execution.
Ample On-Chip Static RAM
Built-in 80KB internal RAM, reducing demand for external high-speed memory in most embedded designs.
Fully Integrated Peripherals
Comes with 8-bit HIP host interface, two full-duplex SPORT serial ports, supporting multi-channel TDM and hardware companding function.
Industrial-Grade Stability
128-TQFP package with -40°C ~ +85°C operating range, featuring low-latency interrupt and flexible power management.
Key Specifications
| Brand | Analog Devices Inc. (ADI) |
|---|---|
| Series | ADSP-21xx Family |
| Device Status | Discontinued / EOL (End of Life) |
| RoHS Status | RoHS Compliant / Lead-Free / Green |
| EDA/CAD Model | Schematic symbol models, 3D CAD step profiles, and 128-TQFP PCB footprint land patterns are available on request |
| Warranty | 1-Year Standard Quality Warranty |
| Package / Case | 128-TQFP (20.1 mm × 14.1 mm) |
| Mounting Type | Surface Mount (SMT / SMD) |
| Surface Marking / Silkscreen | ADSP-2181BSTZ-133 / ADI logo, Marking |
| DSP Architecture | 16-Bit Fixed-Point |
| Clock Frequency | 20 MHz |
| Instruction Cycle Time | 25 ns |
| Performance | 40 MIPS (Million Instructions Per Second) |
| On-Chip RAM | 80KB Total (16K × 24-bit Program RAM + 16K × 16-bit Data RAM) |
| External Memory Address Space | 4MB |
| Supply Voltage (VDD) | 4.5V to 5.5V (5.0V Nominal) |
| External Interfaces | 8-Bit Host Interface Port (HIP), Byte DMA, 2x Synchronous Serial Ports (SPORT) |
| Interrupt & Timer | 6 External Interrupts, 1 Programmable 16-Bit Timer |
| I/O Resources | 13 Programmable Flag I/O Pins |
| Operating Temperature Range | -40°C to +85°C (Industrial Grade) |
| Packaging Format | Tray / Tube |
Typical Applications
- Digital telecommunications, voiceband codecs, modems, and PBX systems
- Industrial motor control drives, AC induction servo systems, and power converters
- Audio signal processing, active noise cancellation (ANC), and speech synthesis
- High-accuracy test and measurement instrumentation and automated control loops
- Legacy military avionics upgrades, embedded automation modules, and medical monitoring devices
Order & Shipping Info
| Minimum Order Quantity (MOQ) | 1 Piece |
|---|---|
| Shipping Time | Shipped within 1-2 business days |
| Delivery Time | 3-7 working days worldwide |
| Shipping Methods | DHL, UPS, FedEx, EMS |
| Payment Methods | T/T (Bank Transfer), PayPal, Credit Card, Western Union |
Technical Support
For datasheet, sample requests, stock check, or bulk pricing, please use the Quick Inquiry form. We will reply within 24 hours.
Frequently Asked Questions
Q1: What does the “Z” in ADSP-2181BSTZ-133 part number stand for?
A1: Following Analog Devices naming rule, suffix “Z” means lead-free and RoHS compliant packaging.
Q2: What is the supply voltage range of ADSP-2181BSTZ-133?
A2: It uses single 5V power supply, operating voltage range: 4.5V ~ 5.5V (Typical 5.0V).
Q3: Does “-133” in the model represent 133MHz working frequency?
A3: No. “-133” is internal speed grade code. The actual working clock frequency is 20MHz with computing performance up to 40 MIPS.
Q4: How does the HIP host interface work with external microcontrollers?
A4: The 8-bit asynchronous HIP allows external host MCU to directly access DSP internal RAM via DMA, without interrupting DSP running tasks.
Q5: What development software supports ADSP-2181 series DSP?
A5: It supports Analog Devices VisualDSP+ development environment, together with assemblers, simulators and EZ-KIT evaluation boards.
Q6: Is ADSP-2181BSTZ-133 still in production?
A6: This component is officially EOL (Discontinued). We only provide limited surplus inventory for existing equipment maintenance.
Q7: What package form is ADSP-2181BSTZ-133?
A7: 128-TQFP package, dimension: 20.1mm × 14.1mm, surface mount device.
Q8: What temperature grade does this DSP belong to?
A8: Industrial grade, working temperature range: -40°C ~ +85°C.
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