Analog Devices Inc. ADSP-21160MKBZ-80

Overview

ADSP-21160MKBZ-80 from Analog Devices is a 32-bit SHARC® digital signal processor with dual computational units (PEX/PEY), 4 Mbits of on-chip dual-ported SRAM, 80 MHz core instruction rate, and 400-ball PBGA package. It executes single-cycle SIMD operations, supports glueless multiprocessing via six link ports and external bus, and targets high-precision audio, medical imaging, and communications systems requiring deterministic real-time floating-point performance.

For engineers reviewing the ADSP-21160MKBZ-80 datasheet, ADSP-21160MKBZ-80 pinout, ADSP-21160MKBZ-80 application, or ADSP-21160MKBZ-80 equivalent, key selection criteria include its 80 MHz instruction rate, 2.5 V core / 3.3 V I/O supply configuration, IEEE 32-/40-bit floating-point support, dual-DAG hardware circular buffering, and 14-channel zero-overhead DMA controller for real-time data streaming.

Technical Context

The ADSP-21160MKBZ-80 implements a Super Harvard architecture with four independent buses enabling concurrent instruction fetch, dual data fetch, and nonintrusive I/O. Its SIMD engine executes identical instructions across PEX and PEY processing elements-each with dedicated ALU, multiplier, shifter, and 16×40-bit register file-while maintaining assembly-level compatibility with ADSP-2106x family code in SISD mode.

Memory subsystem includes two 2M-bit dual-ported SRAM blocks supporting simultaneous single-cycle access by core, I/O processor, and DMA. The external 64-bit parallel port operates at core clock speed (80 MHz), delivers up to 560 MB/s DMA throughput, and enables glueless interfacing to ZBT SRAM, DRAM, and up to six peer ADSP-21160x processors via distributed bus arbitration.

Key Specifications

Pinout & Package

ADSP-21160MKBZ-80 uses a 400-ball 27 mm × 27 mm PBGA package (RoHS-compliant, lead-free). Pinout follows standard ADSP-21160M layout per Analog Devices Rev. D datasheet, with dedicated banks for PM/DM address/data buses, six link ports (LXDAT0–7 × 6), two serial ports (DR0/DT0/RSF0/TFS0/RCLK0/TCLK0 and DR1/DT1/RSF1/TFS1/RCLK1/TCLK1), JTAG interface, host bus signals (ADDR31–0, DATA63–0, CS, RDx, WRx), and power/ground distribution optimized for high-speed signal integrity.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar digital signal processor applications.

Compared with ADSP-21160NKBZ-100, ADSP-21160MKBZ-80 trades 25% lower instruction rate and reduced I/O bandwidth for proven thermal stability and broader voltage margin in industrial temperature-grade deployments; versus ADSP-21065LKSZ-210, it delivers 2× computational throughput and integrated multiprocessing at the cost of larger package and higher pin count.

Availability

ADSP-21160MKBZ-80 is available at Aetrix Electronics and suitable for professional audio equipment, medical imaging subsystems, military radar front-ends, and telecommunications baseband modules requiring stable component supply across extended product lifecycles.

Supply support for ADSP-21160MKBZ-80 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, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.

The SHARC® DSP product line-including ADSP-21160MKBZ-80-is engineered for computationally intensive, real-time signal processing in audio, medical, military, and communications systems where deterministic latency and IEEE floating-point precision are critical.

FAQ

What is the maximum operating temperature range for ADSP-21160MKBZ-80?

The ADSP-21160MKBZ-80 is rated for industrial temperature operation from −40°C to +85°C. This specification is confirmed in the "Operating Conditions-ADSP-21160M" section of the Rev. D datasheet. Thermal design must accommodate 2.5 V core supply dissipation under full SIMD load, and the 400-ball PBGA package requires strict adherence to Analog Devices' recommended PCB land pattern and solder reflow profile to maintain reliability across this range. ADSP-21160MKBZ-80 maintains full 80 MHz instruction rate and all peripheral functionality within this envelope.

Does ADSP-21160MKBZ-80 support IEEE 754 single-precision floating-point arithmetic?

Yes, ADSP-21160MKBZ-80 natively supports IEEE 32-bit single-precision floating-point operations in both PEX and PEY computational units. It also supports 40-bit extended-precision format for higher dynamic range. The functional block diagram (Figure 1) and "Data Formats" section of the Rev. D datasheet confirm hardware implementation of IEEE-compliant multiply, add, subtract, and divide instructions. ADSP-21160MKBZ-80 executes these operations in single cycles with full pipeline utilization, making it suitable for applications demanding numerical accuracy beyond fixed-point limitations.

Can ADSP-21160MKBZ-80 boot directly from an 8-bit EPROM?

Yes, ADSP-21160MKBZ-80 supports EPROM booting via its 8-bit external port using the BMS, EBOOT, and LBOOT pins to configure boot source selection. The "Program Booting" section (Page 9) specifies that 8-bit EPROMs are supported, with address and data lines mapped to the lower byte of the external data bus. Boot code is loaded into internal SRAM before execution begins, and the process requires no external glue logic. ADSP-21160MKBZ-80 retains full functionality after boot, including all 4 Mbits of SRAM and all I/O peripherals.

How many independent DMA channels does ADSP-21160MKBZ-80 provide?

ADSP-21160MKBZ-80 integrates 14 zero-overhead DMA channels: six via link ports, four via serial ports, and four via the external processor port. These channels operate independently of the core processor and support 2D transfers, chaining, and interrupt-on-completion. The Rev. D datasheet (Page 7) confirms this allocation and notes that DMA can move data between internal SRAM, external memory, serial/link ports, and host processors without CPU intervention. Each channel maintains its own address pointer and count register, enabling concurrent background data movement essential for real-time signal processing in ADSP-21160MKBZ-80 systems.

Is ADSP-21160MKBZ-80 pin-compatible with ADSP-21160NKBZ-100?

No, ADSP-21160MKBZ-80 is not pin-compatible with ADSP-21160NKBZ-100. Although both use the same 400-ball PBGA package outline, the Rev. D datasheet explicitly lists them as separate ordering options with distinct electrical characteristics, supply requirements (2.5 V vs. 1.9 V core), and timing parameters. Pin functions are identical in assignment, but voltage tolerance, drive strength, and setup/hold timing differ. Substituting ADSP-21160NKBZ-100 for ADSP-21160MKBZ-80 requires PCB redesign to accommodate core supply changes and updated clock tree configuration. ADSP-21160MKBZ-80 remains the correct choice for existing 2.5 V core designs.