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Analog Devices Inc. ADSP-2101BP-100
- Part No.:
- ADSP-2101BP-100
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 68-LCC (J-Lead)
- Datasheet:
-
ADSP-2101BP-100.pdf
- Description:
- IC DSP CONTROLLER 16BIT 68PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,134
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Product details
Overview
ADSP-2101BP-100 from Analog Devices is a 16-bit fixed-point DSP microprocessor with on-chip 2K RAM program memory and 1K RAM data memory, executing instructions at 20 MHz (50 ns cycle time) in a 68-pin PGA package. It features dual serial ports (SPORT0 and SPORT1), a programmable interval timer, and enhanced Harvard architecture supporting simultaneous instruction fetch and dual data accesses - deployed in real-time audio processing, telecom channel banks, and industrial motor control systems.
For engineers reviewing the ADSP-2101BP-100 datasheet, ADSP-2101BP-100 pinout, ADSP-2101BP-100 application, or ADSP-2101BP-100 equivalent, key selection considerations include its 20 MHz operation speed, 68-pin PGA mechanical compatibility, dual serial port framing flexibility, zero-overhead looping capability, and boot-from-EPROM functionality without host interface.
Technical Context
The ADSP-2101BP-100 implements a three-bus enhanced Harvard architecture: separate program memory address/data buses and dual data memory address/data buses enable concurrent instruction fetch and two operand loads per cycle. Its computational core integrates an ALU, multiplier/accumulator (MAC), and shifter - all operating on 16-bit data with direct support for multiprecision arithmetic and hardware companding (A-law/µ-law).
It uses two dedicated data address generators (DAGs) with modulo and bit-reverse addressing for circular buffer management, and a zero-overhead loop sequencer that eliminates branch penalties. Serial communication is handled by two fully independent, double-buffered synchronous serial ports supporting multichannel operation on SPORT0 and flag I/O reconfiguration on SPORT1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Enhanced Harvard with three internal buses (PMA/PMD/DMA/DMD/R) enabling true parallel instruction + dual data access |
| Instruction Rate | 20 MHz / 50 ns cycle time - supports single-cycle execution of all instructions including MAC and ALU ops |
| On-Chip Memory | 2K × 16-bit program RAM + 1K × 16-bit data RAM - sufficient for self-contained real-time kernels without external code fetch |
| Serial Interfaces | Dual synchronous serial ports (SPORT0 multichannel, SPORT1 reconfigurable to IRQ0/IRQ1/FI/FO) with hardware A-law/µ-law companding |
| Timer | 16-bit programmable interval timer with TSCALE/Tcount/TPERIOD registers - generates precise periodic interrupts for sample timing or system scheduling |
| Boot Method | Automatic byte-wide EPROM boot via external data bus - requires no host intervention or external logic; supports multiple selectable programs |
| Interrupt System | Three external interrupt pins (IRQ0–IRQ2, edge/level configurable) plus internal sources (timer, SPORTs); vectored, maskable, nestable up to 7 levels |
Pinout & Package
ADSP-2101BP-100 is housed in a 68-pin Pin Grid Array (PGA) package with 0.1-inch pitch, designed for through-hole mounting and thermal reliability in industrial environments. Pin assignments follow the standard ADSP-2101 pinout defined in Analog Devices documentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD, VSS | Power supply and ground | Separate analog/digital power domains not implemented; single 5 V supply required across all VDD/VSS pins |
| CLKIN | Master clock input | Accepts TTL-compatible external clock or crystal oscillator; frequency determines instruction rate (20 MHz for -100 suffix) |
| RESET | Asynchronous reset input | Active-low signal initializing program counter, status registers, and memory pointers; triggers automatic 3-wait-state boot sequence |
| BMS, DMS, PMS | Memory space select outputs | Indicate current bus transaction target (boot, data, or program memory) - essential for external memory decode logic |
| SPORT0/SPORT1 signals (SCLK, RFS, TFS, DR, DT) | Synchronous serial I/O | Full-duplex, frame-synchronized interfaces supporting TDM, µ-law companding, and autobuffering with single-cycle overhead |
| IRQ0, IRQ1, IRQ2 | External interrupt inputs | Configurable as level- or edge-sensitive; IRQ0/IRQ1 share pins with SPORT1 functions - mutually exclusive usage |
| BR/BG | Bus request/grant handshake | Enables external DMA controllers to seize external address/data buses while ADSP-2101BP-100 continues execution from on-chip memory |
Key Features
| Feature | Design Value |
|---|---|
| Zero-overhead looping | Hardware loop stack enables infinite loops with no instruction fetch or branch penalty - critical for FIR/IIR filter kernels |
| Dual DAGs with modulo addressing | Two independent address generators each managing four pointers with automatic wrap-around - ideal for circular buffers in FFT and echo cancellation |
| Hardware companding | Integrated A-law and µ-law encoding/decoding per CCITT G.711 - eliminates need for external codec ICs in voice-band applications |
| Double-buffered serial ports | Each SPORT includes transmit/receive buffers with automatic data transfer between memory and shift register - prevents sample loss during ISR latency |
| Boot-from-EPROM | Internal boot ROM sequences external byte-wide EPROM reads into on-chip program memory - simplifies system initialization and reduces BOM count |
Applications
| Voice Communications Terminal | Digital Audio Effects Processor |
|---|---|
Use Scenario: Real-time voice compression/decompression and echo cancellation in PSTN gateway equipment. IC Role / Device Role / Timing Role: Primary signal processing engine executing G.723/G.729 algorithms with deterministic 50 ns instruction timing and low-latency serial I/O. Use Value: On-chip 2K program RAM stores compressed algorithm code; dual SPORTs handle simultaneous PCM input/output streams with hardware µ-law companding. |
Use Scenario: Multi-effect digital audio processor for guitar pedals and studio rack units. IC Role / Device Role / Timing Role: Real-time FIR filter, delay line, and modulation engine synchronized to 48 kHz audio clock via SPORT0 framing. Use Value: Zero-overhead looping executes 128-tap filters in fixed cycles; 1K data RAM accommodates 2048-sample delay buffers with modulo addressing. |
| Industrial Motor Control System | Telecom Channel Bank |
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase AC induction motors in factory automation drives. IC Role / Device Role / Timing Role: Deterministic PWM waveform generation and current/voltage sampling coordination using timer-triggered ADC emulation via SPORT1 flag I/O. Use Value: 20 MHz instruction rate ensures sub-1 µs control loop jitter; programmable timer provides precise 10–100 µs sampling intervals aligned to PWM edges. |
Use Scenario: 24-channel T1 line card performing channelized DS0 termination and CAS signaling. IC Role / Device Role / Timing Role: Multichannel serial interface controller using SPORT0's 24-word TDM mode to extract/insert individual DS0 frames. Use Value: SPORT0 hardware autobuffering transfers full T1 frame (193 bits) with one overhead cycle; on-chip RAM stores per-channel gain/offset calibration tables. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DSP microprocessor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-2101BP-13 | 13.0 MHz max clock (76.9 ns cycle); identical memory map, pinout, and peripheral set | Lower performance margin for complex filter banks or high-sample-rate audio; suitable for cost-sensitive, lower-throughput designs | Select when system timing budget allows relaxed instruction rate and thermal/power constraints dominate |
| ADSP-2101KP-100 | Same 20 MHz speed and 68-pin PGA package, but commercial temperature grade (0°C to +70°C) vs. industrial (-40°C to +85°C) for BP variant | Not qualified for extended ambient operation in motor drives or outdoor telecom enclosures | Choose only for benign-environment applications like consumer audio where industrial temp range is unnecessary |
Compared with ADSP-2101BP-100, the ADSP-2101BP-13 trades 35% peak throughput for reduced power and simpler clocking, while the ADSP-2101KP-100 maintains identical electrical performance but lacks extended temperature qualification - making BP-100 the sole choice for thermally demanding industrial deployments requiring guaranteed 20 MHz operation across -40°C to +85°C.
Availability
ADSP-2101BP-100 is available at Aetrix Electronics and suitable for voice communications terminals, digital audio effects processors, and industrial motor control systems requiring stable component supply and long-term obsolescence management.
Supply support for ADSP-2101BP-100 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 digital signal processing technologies for precision instrumentation, communications, and industrial applications.
The ADSP-2100 Family was engineered as a cost-optimized, single-chip DSP solution for real-time embedded signal processing - prioritizing deterministic timing, on-chip memory integration, and serial I/O flexibility over general-purpose computing features.
FAQ
What is the maximum operating frequency of the ADSP-2101BP-100?
The ADSP-2101BP-100 is rated for a maximum instruction rate of 20 MHz, corresponding to a 50 ns instruction cycle time. This speed grade is confirmed by the "-100" suffix in the part number and is validated across the full industrial temperature range (-40°C to +85°C). The device achieves single-cycle execution of all instructions including MAC operations at this frequency.
Does the ADSP-2101BP-100 include a host interface port (HIP)?
No, the ADSP-2101BP-100 does not include a host interface port. The HIP is exclusive to the ADSP-2111 variant within the ADSP-2100 Family. The ADSP-2101BP-100 relies on its dual serial ports (SPORT0 and SPORT1), external memory interface, and interrupt lines for system-level communication - making it suitable for standalone DSP applications without host microcontroller coordination.
What package type and pin count does the ADSP-2101BP-100 use?
The ADSP-2101BP-100 uses a 68-pin Pin Grid Array (PGA) package with 0.1-inch pin spacing. This mechanical form factor is explicitly listed in the ADSP-2100 Family datasheet for the ADSP-2101 series and is compatible with standard PGA sockets and wave-soldering processes used in industrial PCB assembly.
Can the ADSP-2101BP-100 boot directly from external EPROM?
Yes, the ADSP-2101BP-100 supports automatic booting from byte-wide external EPROM without external logic. Upon RESET, it generates three wait states and sequentially loads program code into its on-chip 2K program RAM. This feature is intrinsic to the ADSP-2101 architecture and requires only standard EPROM wiring to the data bus and address lines.
How many serial ports does the ADSP-2101BP-100 provide, and what are their capabilities?
The ADSP-2101BP-100 provides two fully independent synchronous serial ports: SPORT0 (multichannel-capable, supporting 24- or 32-word TDM) and SPORT1 (reconfigurable to IRQ0/IRQ1/FI/FO). Both support hardware A-law/µ-law companding, double-buffered transmit/receive, flexible framing, and autobuffering with single-cycle overhead - enabling robust real-time audio and telecom data handling.
ADSP-2101BP-100 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- ADSP-21xx
- Package/Case:
- 68-LCC (J-Lead)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Type:
- Fixed Point
- Interface:
- Synchronous Serial Port (SSP)
- Clock Rate:
- 25MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 6kB
- Voltage - I/O:
- 5.00V
- Voltage - Core:
- 5.00V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 68-PLCC (24.23x24.23)
ADSP-2101BP-100 FAQ
1.How can I place an order for ADSP-2101BP-100 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-2101BP-100 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-2101BP-100 reliable?
The price and inventory of ADSP-2101BP-100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-2101BP-100 is usually 5 days.
3.What payment methods are accepted for ADSP-2101BP-100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-2101BP-100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-2101BP-100?
ADSP-2101BP-100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-2101BP-100 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-2101BP-100?
For technical support, including ADSP-2101BP-100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-2101BP-100 requirements.
6.How does Aetrix verify that ADSP-2101BP-100 is sourced from the original manufacturer or authorized distributors?
All ADSP-2101BP-100 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-2101BP-100 meets industry standards.
7.What is the process for return or replacement of ADSP-2101BP-100?
All ADSP-2101BP-100 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-2101BP-100, 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-2101BP-100 part is unused and in its original packaging.
Return procedure for ADSP-2101BP-100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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