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Analog Devices Inc. ADSP-2115BP-66
- Part No.:
- ADSP-2115BP-66
- Manufacturer:
- Analog Devices Inc.
- Category:
- DSP (Digital Signal Processors)
- Package:
- 68-LCC (J-Lead)
- Datasheet:
-
ADSP-2115BP-66.pdf
- Description:
- 16-BIT DIGITAL SIGNAL PROCESSOR
- Quantity:
- Payment:
- Shipping:
Inventory:108
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Product details
Overview
ADSP-2115BP-66 from Analog Devices is a 16-bit fixed-point DSP microprocessor with on-chip 1K × 16-bit data RAM and 1K × 16-bit program RAM, operating at 25 MHz (40 ns instruction cycle), featuring dual serial ports (SPORT0 and SPORT1), a programmable interval timer, and enhanced Harvard architecture with three-bus performance for real-time audio and telecom signal processing.
For engineers reviewing the ADSP-2115BP-66 datasheet, ADSP-2115BP-66 pinout, ADSP-2115BP-66 application, or ADSP-2115BP-66 equivalent, key selection considerations include its 25 MIPS throughput, 80-lead TQFP package, 5 V supply, industrial temperature range (–40°C to +85°C), and absence of host interface port-distinguishing it from ADSP-2111.
Technical Context
The ADSP-2115BP-66 implements a true three-bus Harvard architecture: separate program memory address/data buses and dual data memory address/data buses enable simultaneous instruction fetch, dual operand load, and computation in one cycle. Its ALU, multiplier/accumulator, and shifter operate in parallel via the internal 16-bit result (R) bus.
It supports zero-overhead looping, modulo and bit-reverse addressing via two dedicated data address generators (DAGs), automatic booting from byte-wide external EPROM, and double-buffered serial ports with hardware A-law/µ-law companding-enabling efficient TDM and voice codec implementations without external support logic.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | Enhanced Harvard with independent instruction & dual data buses-enables concurrent fetch, dual data move, and compute per cycle. |
| Instruction Rate | 25 MIPS at 25 MHz (40 ns cycle)-guarantees deterministic real-time execution for hard-deadline audio control loops. |
| On-Chip Memory | 1K × 16-bit program RAM + 1K × 16-bit data RAM-sufficient for self-contained voice compression algorithms without external memory. |
| Serial Interfaces | Dual synchronous serial ports (SPORT0 multichannel, SPORT1 configurable as I/O flags)-supports full-duplex T1/E1 framing or inter-processor comms. |
| Timing Control | Programmable 16-bit timer with scaling register (TSCALE) and period reload (TPERIOD)-generates precise sample-rate interrupts (e.g., 8 kHz, 16 kHz). |
| Power Supply | 5 V ± 5%-compatible with legacy industrial and telecom power rails; no 3.3 V variant exists for this speed grade. |
| Temperature Range | –40°C to +85°C (Industrial grade)-validated for operation in base station line cards and industrial motor control cabinets. |
Pinout & Package
ADSP-2115BP-66 is housed in an 80-lead Thin Quad Flat Package (TQFP) with 0.5 mm lead pitch, thermally enhanced for sustained 25 MHz operation in convection-cooled environments. Pin functions are defined per Analog Devices ADSP-2115 datasheet Rev. C, Table IV.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKIN | Clock Input | Accepts TTL-compatible 25 MHz crystal or oscillator; drives internal PLL-free core timing-no external clock conditioning required. |
| RESET | Asynchronous Reset | Active-low, level-sensitive reset with internal pull-up; initiates 3-cycle boot sequence from external EPROM. |
| BMS, DMS, PMS | Memory Space Select | Three-state outputs indicating current bus access target (Boot/Data/Program)-enables glueless interfacing to multiple memory banks. |
| SPORT0: DT0, DR0, TFS0, RFS0, SCLK0 | Serial Port 0 Interface | Full 5-pin synchronous interface supporting multichannel TDM (24/32-word frames) and hardware companding-eliminates need for external frame sync logic. |
| SPORT1: DT1, DR1, TFS1, RFS1, SCLK1 | Serial Port 1 Interface | Independent 5-pin port; DR1/DT1 pins optionally repurposed as general-purpose flag inputs/outputs for system event signaling. |
| IRQ0, IRQ1, IRQ2 | Interrupt Inputs | Three edge- or level-sensitive interrupt pins; IRQ0/IRQ1 share pins with SPORT1-configurable for priority-based real-time event handling. |
| AD0–AD13, DATA0–DATA15 | Address/Data Multiplexed Bus | 14-bit address + 16-bit data multiplexed on shared pins; supports up to 14.5K words data memory and 15K words program memory expansion. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-overhead looping | Hardware loop counter and stack enable infinite loops with no branch penalty-critical for FIR/IIR filter kernels executing in <1 µs. |
| Dual DAGs with modulo addressing | Two independent address generators each managing four pointers with auto-increment/decrement and circular buffer wrap-optimizes FFT and delay-line buffers. |
| Hardware companding | On-chip A-law and µ-law encoding/decoding per CCITT G.711-reduces voice codec BOM by removing external compander ICs. |
| Automatic EPROM boot | Internal boot sequencer loads program memory from byte-wide EPROM after reset-enables field-upgradable firmware without host processor involvement. |
| Low-power IDLE instruction | Halts core clocks while preserving register and memory state-reduces active power to <50 mW during silence detection in voice applications. |
Applications
| Voice Codec System | Industrial Motor Control |
|---|---|
Use Scenario: Real-time G.711 PCM compression/decompression in VoIP gateway line cards with echo cancellation. IC Role / Device Role / Timing Role: Primary signal processor executing adaptive filtering, DTMF detection, and packetization-synchronized to 8 kHz sampling clock via timer-generated interrupts. Use Value: On-chip dual serial ports handle simultaneous upstream/downstream TDM streams; hardware companding eliminates external codec ICs and reduces latency by 2 cycles. |
Use Scenario: Closed-loop field-oriented control (FOC) of 3-phase AC induction motors in CNC spindles. IC Role / Device Role / Timing Role: Real-time PWM update engine calculating Clarke/Park transforms and PI regulators at 10–20 kHz switching frequency. Use Value: 25 MIPS throughput ensures sub-1 µs vector math execution; programmable timer triggers ADC sampling and PWM updates with jitter <10 ns. |
| Telecom Line Card | Audio Effects Processor |
Use Scenario: Channelized T1 interface card aggregating 24 DS0 voice channels with CAS/CCS signaling. IC Role / Device Role / Timing Role: Multichannel DSP handling time-slot assignment, CAS bit extraction, and channel-specific gain control-clocked by recovered T1 frame sync. Use Value: SPORT0's native 24-word TDM mode directly maps to T1 structure; dual-port RAM enables ping-pong buffering for zero-dropout channel processing. |
Use Scenario: Low-latency digital reverb and chorus effects in professional guitar multi-effects pedals. IC Role / Device Role / Timing Role: Dedicated audio DSP running convolution-based reverb kernels with 512-tap impulse responses at 48 kHz sample rate. Use Value: Three-bus architecture allows simultaneous coefficient fetch, sample load, and MAC operation-achieving 96% MAC utilization at 24-bit precision. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar DSP microprocessor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADSP-2115KP-66 | Same core, 68-lead PLCC package, identical electrical specs-differs only in mechanical form factor and thermal resistance. | Preferred for through-hole prototyping or legacy PCBs with PLCC footprints; lacks TQFP's board-area efficiency. | Select ADSP-2115KP-66 only when PLCC socket compatibility or manual assembly is required. |
| ADSP-2105KP-66 | Lower memory (512-word program RAM, 512-word data RAM), same 25 MHz speed-no SPORT0, SPORT1 only. | Suitable for cost-sensitive single-channel voice applications where multichannel TDM is unnecessary. | Choose ADSP-2105KP-66 when BOM cost reduction outweighs loss of SPORT0 and reduced memory headroom. |
Compared with ADSP-2115BP-66, ADSP-2115KP-66 offers identical signal processing capability in a legacy package but higher thermal impedance, while ADSP-2105KP-66 trades memory size and serial port count for lower unit cost-making it viable only in memory-constrained single-stream designs.
Availability
ADSP-2115BP-66 is available at Aetrix Electronics and suitable for industrial motor control, telecom line cards, voice codec systems, and audio effects processors requiring stable component supply across extended product lifecycles.
Supply support for ADSP-2115BP-66 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 systems.
The ADSP-2100 Family-including ADSP-2115BP-66-is designed for real-time embedded signal processing in resource-constrained environments where deterministic low-latency execution, on-chip memory integration, and hardware acceleration of common DSP primitives are critical.
FAQ
What is the maximum operating frequency of the ADSP-2115BP-66?
The ADSP-2115BP-66 operates at a guaranteed maximum instruction rate of 25 MHz, corresponding to a 40 ns instruction cycle time. This speed grade is validated across the full industrial temperature range (–40°C to +85°C) and 5 V ±5% supply, with timing parameters specified in the ADSP-2115 datasheet Section "TIMING PARAMETERS (ADSP-2101/2105/2111/2115/2161/2163)".
Does the ADSP-2115BP-66 include a host interface port (HIP)?
No, the ADSP-2115BP-66 does not include a host interface port. The HIP is exclusive to the ADSP-2111 variant. The ADSP-2115BP-66 provides dual serial ports (SPORT0 and SPORT1), a programmable timer, and three external interrupt inputs-but no parallel host bus interface. System-level host communication must be implemented via SPORT or external logic.
What package type and pin count does the ADSP-2115BP-66 use?
The ADSP-2115BP-66 is supplied in an 80-lead Thin Quad Flat Package (TQFP) with 0.5 mm lead pitch, as confirmed in the ADSP-2115 datasheet "PIN CONFIGURATIONS" section. This package is distinct from the 68-lead PLCC used by ADSP-2115KP-66 and the 100-pin packages reserved for ADSP-2111 variants.
Can the ADSP-2115BP-66 boot from external memory without a host processor?
Yes, the ADSP-2115BP-66 supports autonomous booting from byte-wide external EPROM via its dedicated boot interface. After reset, it generates three wait states and executes a built-in boot loader that copies program code into on-chip program RAM-enabling standalone operation in systems without a supervisory microcontroller.
What are the memory capacities of the ADSP-2115BP-66?
The ADSP-2115BP-66 integrates 1K × 16-bit (2048 words) of on-chip program RAM and 1K × 16-bit (2048 words) of on-chip data RAM, as specified in Table I of the ADSP-2115 datasheet. These memories are SRAM-based, fully static, and accessible in a single cycle-supporting tight real-time loops without cache misses or wait states.
ADSP-2115BP-66 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 68-LCC (J-Lead)
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Fixed Point
- Interface:
- Host Interface, Synchronous Serial Port (SSP)
- Clock Rate:
- 16.67MHz
- Non-Volatile Memory:
- External
- On-Chip RAM:
- 1.5kB
- 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-2115BP-66 FAQ
1.How can I place an order for ADSP-2115BP-66 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADSP-2115BP-66 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-2115BP-66 reliable?
The price and inventory of ADSP-2115BP-66 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADSP-2115BP-66 is usually 5 days.
3.What payment methods are accepted for ADSP-2115BP-66?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADSP-2115BP-66 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADSP-2115BP-66?
ADSP-2115BP-66 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADSP-2115BP-66 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-2115BP-66?
For technical support, including ADSP-2115BP-66 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADSP-2115BP-66 requirements.
6.How does Aetrix verify that ADSP-2115BP-66 is sourced from the original manufacturer or authorized distributors?
All ADSP-2115BP-66 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-2115BP-66 meets industry standards.
7.What is the process for return or replacement of ADSP-2115BP-66?
All ADSP-2115BP-66 units undergo pre-shipment inspection (PSI). If there is an issue with ADSP-2115BP-66, 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-2115BP-66 part is unused and in its original packaging.
Return procedure for ADSP-2115BP-66:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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