My Inquiry
My Account
Analog Devices Inc. ADSP-2171KS-133
- Part No.:
- ADSP-2171KS-133
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 128-BQFP
- Datasheet:
-
ADSP-2171KS-133.pdf
- Description:
- 16-BIT DIGITAL SIGNAL PROCESSOR
- Quantity:
- Payment:
- Shipping:
Inventory:38,910
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
ADSP-2171KS-133 from Analog Devices is a 32-bit fixed-point DSP microcomputer optimized for real-time digital signal processing in audio, telecom, and industrial control systems. It delivers 33 MIPS at 30 ns instruction cycle time (16.67 MHz crystal, 5.0 V), integrates 2K × 24-bit program RAM, 2K × 16-bit data RAM, dual serial ports with hardware companding, and an 8-/16-bit host interface port.
For engineers reviewing the ADSP-2171KS-133 datasheet, ADSP-2171KS-133 pinout, ADSP-2171KS-133 application, or ADSP-2171KS-133 equivalent, key selection criteria include on-chip memory configuration (no ROM), 5.0 V operation, TQFP-128 packaging, powerdown mode (<0.55 mW standby), and ADSP-2100 family code compatibility with enhanced bit manipulation and global interrupt masking.
Technical Context
The ADSP-2171KS-133 implements the ADSP-2100 base architecture with three parallel computational units (ALU, MAC, shifter), two independent DAGs, and a zero-overhead loop-capable program sequencer. It executes every instruction in a single 30 ns cycle while simultaneously fetching instructions, moving data, updating address pointers, and performing computation.
It supports dual synchronous serial ports (SPORT0/SPORT1) with configurable framing, A-law/µ-law companding per CCITT G.711, and internal/external clocking; the host interface port (HIP) operates in 8- or 16-bit asynchronous mode with full memory-mapped register access and software-initiated reset capability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Instruction Cycle Time | 30 ns - enables deterministic 33 MIPS throughput with single-cycle execution of all instructions including multiply-accumulate and bit operations. |
| Supply Voltage | 5.0 V - specifies mandatory operating voltage; not compatible with 3.3 V systems like ADSP-2173. |
| On-Chip Program Memory | 2K × 24-bit RAM - provides executable program space; no embedded ROM (distinguishes ADSP-2171 from ADSP-2172's 8K ROM). |
| On-Chip Data Memory | 2K × 16-bit RAM - supports simultaneous dual-operand fetches via dedicated DAGs for circular buffer and FFT acceleration. |
| Serial Ports | Two SPORTs - each supports frame sync, 3–16-bit word length, hardware companding, and independent transmit/receive double buffering. |
| Host Interface Port | 8-/16-bit programmable HIP - enables direct connection to Intel 80C51 or Motorola 68000 without glue logic; supports boot loading and mailbox-style host-DSP communication. |
| Powerdown Mode | <0.55 mW standby - allows battery-powered operation with 100-cycle recovery; triggered by PWD pin or software bit. |
Pinout & Package
ADSP-2171KS-133 is housed in a 128-pin Thin Quad Flat Package (TQFP) with 0.4 mm lead pitch, RoHS-compliant, and thermally enhanced for embedded DSP applications requiring compact board layout and moderate power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN / XTAL | Clock input pair | Accepts 16.67 MHz crystal (parallel-resonant, fundamental mode) or TTL-compatible external clock; defines core 30 ns timing. |
| RESET | Master reset input | Active-low asynchronous reset; must be held low ≥2000 CLKIN cycles during power-up for PLL lock and oscillator stabilization. |
| PWD / PWDACK | Powerdown control | PWD asserts hardware-initiated low-power mode; PWDACK confirms entry into sub-100 µA CMOS standby state. |
| HSEL, HSIZE, BMODE, HMD0, HMD1 | HIP configuration inputs | Set 16-bit vs. 8-bit bus width, EPROM vs. HIP boot source, and multiplexed vs. separate address/data modes - enable plug-and-play host interfacing. |
| SPORT0 (TFS0, RFS0, DT0, DR0, SCLK0) | Primary serial I/O group | Full-duplex synchronous interface supporting TDM, I²S-like framing, and hardware µ-law/A-law companding for voice codec integration. |
| FL2–FL0 | General-purpose flag outputs | Software-controllable status signals for external event notification (e.g., DMA completion, algorithm phase transition). |
Key Features
| Feature | Design Value |
|---|---|
| Single-cycle instruction execution | Every instruction-including ALU, MAC, shifter, and memory moves-completes in one 30 ns cycle, enabling predictable real-time latency. |
| Dual independent data address generators (DAGs) | Each maintains four post-modified pointers with automatic modulo addressing, accelerating FIR/IIR filtering and FFT buffer management. |
| Bus Grant Hang Logic (BGH) | Prevents bus contention during external memory access by holding BG active until current memory cycle completes - simplifies multi-processor bus arbitration. |
| Enhanced bit manipulation instructions | BIT SET/CLEAR/TOGGLE/TEST enable efficient protocol stack bit-field handling and peripheral register control without software bit-banging. |
| Programmable 16-bit interval timer | Generates precise periodic interrupts using TCOUNT/TPERIOD registers and TSCALE prescaler - ideal for sample-rate timing and watchdog supervision. |
Applications
| Voice Codec Interface | Industrial Motor Control |
|---|---|
|
Use Scenario: Real-time echo cancellation and DTMF detection in VoIP gateways using analog front-end codecs. IC Role / Device Role / Timing Role: Primary DSP engine executing adaptive filtering algorithms with strict 125 µs frame latency bound. Use Value: Dual SPORTs with hardware companding offload CPU overhead; 2K program RAM stores coefficient tables; 30 ns cycle ensures sub-frame computation completion. |
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase BLDC motors in factory automation drives. IC Role / Device Role / Timing Role: Real-time PWM modulation generator and current-loop regulator with 50 µs current sampling interval. Use Value: MAC unit performs single-cycle Q15 multiply-accumulate for Clarke/Park transforms; DAGs manage rotating coordinate buffers; HIP enables parameter tuning from PLC host. |
| Audio Effects Processor | Medical Signal Analyzer |
|
Use Scenario: Low-latency reverb and equalization in portable digital mixers with analog input/output stages. IC Role / Device Role / Timing Role: Dedicated audio DSP co-processor handling 48 kHz stereo streams with <1 ms end-to-end delay. Use Value: Shifter normalizes floating-point intermediates; SPORT0/SPORT1 handle simultaneous I²S input/output; 2K data RAM buffers 256-sample windows for FIR filtering. |
Use Scenario: Portable ECG analyzer acquiring and analyzing biopotential waveforms with noise suppression and arrhythmia detection. IC Role / Device Role / Timing Role: Embedded signal processor executing QRS complex detection and ST-segment analysis in battery-powered handheld unit. Use Value: Powerdown mode draws <0.55 mW between measurements; 5.0 V supply interfaces directly with legacy op-amp signal chains; HIP allows firmware updates via USB-to-parallel adapter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DSP microcomputer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-2172KS-133 | Includes 8K × 24-bit on-chip program ROM; otherwise identical architecture, pinout, and speed grade. | Supports standalone ROM-based boot without external EPROM; suitable for sealed, field-upgrade-resistant designs. | Select ADSP-2172KS-133 when boot code persistence and reduced BOM count are required; ADSP-2171KS-133 requires external boot memory. |
| TMS320VC5402PGE | 16-bit fixed-point C54x DSP; 100 MIPS @ 100 MHz; different instruction set, memory map, and peripheral register layout. | Higher throughput but lacks native HIP and companding hardware; requires external glue logic for host interface and codec interfacing. | Choose TMS320VC5402PGE only when migrating existing C54x codebase; ADSP-2171KS-133 offers superior integration for new 5V audio/telecom designs. |
Compared with ADSP-2172KS-133, ADSP-2171KS-133 trades embedded ROM for lower cost and flexibility in dynamic firmware loading; versus TMS320VC5402PGE, it provides tighter hardware integration for voice-centric applications but lower peak MIPS - making it optimal for cost-sensitive, low-power 5V DSP subsystems where peripheral consolidation matters more than raw clock speed.
Availability
ADSP-2171KS-133 is available at Aetrix Electronics and suitable for voice codec interface, industrial motor control, and portable medical signal analyzer applications requiring stable component supply, long-term lifecycle support, and legacy 5.0 V system compatibility.
Supply support for ADSP-2171KS-133 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 semiconductor leader specializing in high-performance analog, mixed-signal, and DSP technologies for precision signal processing across industrial, automotive, and communications markets.
The ADSP-217x product line was engineered for embedded real-time DSP tasks demanding deterministic low-latency execution, integrated peripherals, and 5.0 V operation - targeting audio infrastructure, telecom terminal equipment, and control-oriented signal processing.
FAQ
What is the maximum operating frequency and instruction throughput of the ADSP-2171KS-133?
The ADSP-2171KS-133 operates with a 30 ns instruction cycle time, achieving 33 million instructions per second (MIPS) when driven by a 16.67 MHz crystal at 5.0 V. Every instruction-including arithmetic, memory access, and branching-executes in exactly one cycle, ensuring deterministic real-time performance critical for audio and control loops. This specification is fixed for the KS-133 speed grade and cannot be increased via overclocking.
Does the ADSP-2171KS-133 include on-chip program ROM, and how does it differ from ADSP-2172KS-133?
No, the ADSP-2171KS-133 contains only 2K × 24-bit on-chip program RAM and no embedded ROM. In contrast, ADSP-2172KS-133 adds 8K × 24-bit program ROM for standalone boot execution. Both share identical pinout, speed grade, and 5.0 V operation, but ADSP-2171KS-133 requires external boot memory (e.g., EPROM) or host interface loading, offering greater firmware update flexibility at the cost of additional BOM components.
Can the ADSP-2171KS-133 operate at 3.3 V, and what are the electrical implications?
No, the ADSP-2171KS-133 is specified exclusively for 5.0 V operation and is not rated for 3.3 V supply. Attempting to power it at 3.3 V will result in functional failure, undefined behavior, or permanent damage. For 3.3 V systems, Analog Devices offers the pin-compatible ADSP-2173 series - which also features reduced 50 ns cycle time and 70 mW typical power dissipation but requires careful validation of timing margins and interface level-shifting.
How does the Host Interface Port (HIP) of the ADSP-2171KS-133 support communication with external microcontrollers?
The ADSP-2171KS-133 HIP provides a fully asynchronous, memory-mapped 8- or 16-bit parallel interface that functions as dual-ported mailbox registers (HDR0–HDR5). A host processor (e.g., 80C51 or 68000) can read/write these registers without halting the DSP core. Configuration pins (HSIZE, BMODE, HMD0/1) allow straight-wire connection to industry-standard buses, and the HIP supports software-initiated reset - enabling robust host-DSP synchronization in embedded systems.
What low-power modes are supported by the ADSP-2171KS-133, and what is the minimum standby current?
The ADSP-2171KS-133 supports three low-power states: Powerdown (<0.55 mW, <100 µA), Idle (clock-gated, interrupt-wakeup), and Slow Idle (programmable clock divisor of 16/32/64/128). Powerdown mode is entered via PWD pin assertion or software command and guarantees sub-100 µA CMOS standby current with 100-cycle recovery - essential for battery-powered voice recorders and portable analyzers where runtime extension is critical.
ADSP-2171KS-133 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 128-BQFP
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Fixed Point
- Interface:
- Host Interface, Serial Port
- Clock Rate:
- 33.33MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 10kB
- Voltage - I/O:
- 5.00V
- Voltage - Core:
- 5.00V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 128-PQFP (28x28)
ADSP-2171KS-133 FAQ
1.How can I place an order for ADSP-2171KS-133 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-2171KS-133 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-2171KS-133 reliable?
The price and inventory of ADSP-2171KS-133 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-2171KS-133 is usually 5 days.
3.What payment methods are accepted for ADSP-2171KS-133?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-2171KS-133 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-2171KS-133?
ADSP-2171KS-133 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-2171KS-133 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-2171KS-133?
For technical support, including ADSP-2171KS-133 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-2171KS-133 requirements.
6.How does Aetrix verify that ADSP-2171KS-133 is sourced from the original manufacturer or authorized distributors?
All ADSP-2171KS-133 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-2171KS-133 meets industry standards.
7.What is the process for return or replacement of ADSP-2171KS-133?
All ADSP-2171KS-133 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-2171KS-133, 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-2171KS-133 part is unused and in its original packaging.
Return procedure for ADSP-2171KS-133:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADSP-2171KS-133 Tags
-
TMS320C5535AZAY10
Texas Instruments
-
TMS320VC5501PGF300
Texas Instruments
-
ADSP-BF592KCPZ
Analog Devices Inc.
-
ADAU1463WBCPZ150
Analog Devices Inc.
-
TMS320VC5402PGE100
Texas Instruments
-
ADAU1701JSTZ-RL
Analog Devices Inc.
-
ADAU1701JSTZ
Analog Devices Inc.
-
TMS320VC5502PGF300
Texas Instruments
-
ADAU1462WBCPZ300RL
Analog Devices Inc.
-
ADAU1452KCPZRL
Analog Devices Inc.
-
ADAU1452WBCPZ-RL
Analog Devices Inc.
-
TMS320C6747DZKB3
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
