Analog Devices Inc. ADSP-2101BPZ-100

Overview

ADSP-2101BPZ-100 from Analog Devices is a 16-bit fixed-point DSP microprocessor with on-chip 2K RAM program memory and 1K RAM data memory, operating at 16.67 MHz (60 ns instruction cycle), featuring dual serial ports (SPORT0/SPORT1), a programmable interval timer, and enhanced Harvard architecture for three-bus performance. It targets real-time audio processing, telecom channel filtering, and industrial motor control systems requiring deterministic low-latency computation.

For engineers reviewing the ADSP-2101BPZ-100 datasheet, ADSP-2101BPZ-100 pinout, ADSP-2101BPZ-100 application, or ADSP-2101BPZ-100 equivalent, key selection criteria include its 60 ns instruction cycle time, dual serial port support with hardware companding, zero-overhead looping capability, and 68-pin PLCC package compatibility with legacy ADSP-2100 Family designs.

Technical Context

The ADSP-2101BPZ-100 implements a dedicated ADSP-2100 core with independent ALU, multiplier/accumulator, and shifter units interconnected via a 16-bit result bus, enabling simultaneous instruction fetch, dual operand access, and computation in one cycle. Its dual data address generators support modulo and bit-reverse addressing essential for FFT and filter coefficient management.

It uses separate on-chip program and data memory buses to sustain three-bus performance-allowing concurrent instruction fetch from program memory and two data accesses from data memory. Booting is supported from byte-wide external EPROM with automatic wait-state insertion, and serial port operation includes A-law/µ-law companding per CCITT G.711.

Key Specifications

Pinout & Package

ADSP-2101BPZ-100 is housed in a 68-lead plastic leaded chip carrier (PLCC) package with 0.050" lead pitch, JEDEC MS-026 compliant, suitable for wave soldering and socket-based prototyping.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar DSP microprocessor applications.

Compared with ADSP-2101KPZ-100, ADSP-2101BPZ-100 delivers guaranteed operation across harsher thermal environments while maintaining identical timing, pinout, and instruction set; versus ADSP-2105KPZ-100, it provides 2× program memory, full dual-serial-port capability, and industrial-grade robustness at minimal BOM cost increase.

Availability

ADSP-2101BPZ-100 is available at Aetrix Electronics and suitable for voice codec processing, industrial motor control, and telecom channel filtering requiring stable component supply across long-lifecycle embedded programs.

Supply support for ADSP-2101BPZ-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 systems.

The ADSP-2100 Family was designed to deliver deterministic, low-latency fixed-point DSP performance in compact, single-chip form factors for real-time embedded signal processing where power efficiency and architectural simplicity were critical.

FAQ

What is the maximum instruction execution rate of the ADSP-2101BPZ-100?

The ADSP-2101BPZ-100 achieves a maximum instruction execution rate of 16.67 million instructions per second (MIPS), corresponding to its 60 ns instruction cycle time. This rate is sustained across all instructions-including multiply-accumulate, ALU operations, and memory accesses-due to its three-bus Harvard architecture and single-cycle execution design. The ADSP-2101BPZ-100 does not require pipeline stalls or wait states under nominal operating conditions.

Does the ADSP-2101BPZ-100 support hardware-based audio companding?

Yes, the ADSP-2101BPZ-100 integrates dedicated hardware companding circuitry supporting both A-law and µ-law algorithms per CCITT G.711 standard. This functionality is implemented within each serial port (SPORT0 and SPORT1), enabling real-time compression and expansion of voice-band signals without consuming CPU cycles. The ADSP-2101BPZ-100 applies companding automatically during serial data transfers when enabled via control registers.

Can the ADSP-2101BPZ-100 boot directly from external EPROM?

Yes, the ADSP-2101BPZ-100 features automatic booting from byte-wide external EPROM upon reset. Its internal boot controller inserts three wait states by default, allowing direct interfacing with common 200 ns EPROMs. The ADSP-2101BPZ-100 loads program memory sequentially from external address 0x0000, and supports multiple program selection via external address lines-no external glue logic or host intervention is required for boot initialization.

What serial interface capabilities does the ADSP-2101BPZ-100 provide?

The ADSP-2101BPZ-100 includes two fully independent synchronous serial ports: SPORT0 (with multichannel TDM support for 24/32-word streams) and SPORT1 (reconfigurable as IRQ0/IRQ1 inputs). Both ports are double-buffered, support frame sync polarity inversion, variable word lengths (3–16 bits), and hardware companding. Each port operates asynchronously and can generate dedicated interrupts upon transmit/receive completion.

Is the ADSP-2101BPZ-100 pin-compatible with other ADSP-2100 Family members in PLCC packaging?

Yes, the ADSP-2101BPZ-100 in 68-lead PLCC is pin-compatible with ADSP-2101KPZ-100, ADSP-2103KPZ-100, ADSP-2105KPZ-100, and ADSP-2115KPZ-100-all sharing identical pin assignments, signal definitions, and power/ground layout. This allows drop-in replacement across speed grades and memory variants without PCB redesign, provided the target application does not require ADSP-2111-specific host interface port functionality.