Overview
The ADSP-2173BST-80 is a single-chip microcomputer designed by Analog Devices Inc., optimized for digital signal processing (DSP) and other high-speed numeric processing applications. This device is part of the ADSP-217x family, which includes the ADSP-2171, ADSP-2172, and ADSP-2173. The ADSP-2173 is specifically designed for 3.3 V applications, making it suitable for low-power and high-performance requirements.
Key Specifications
| Parameter | Value |
|---|---|
| Instruction Cycle Time | 50 ns (20 MIPS) at 10 MHz Crystal, 3.3 V |
| On-Chip Program Memory | 2K Words of RAM, 8K Words of ROM (ADSP-2172) |
| On-Chip Data Memory | 2K Words of RAM |
| Host Interface Port | 8- or 16-Bit Parallel |
| Serial Ports | Two Double-Buffered with Companding Hardware and Automatic Data Buffering |
| Timer | Programmable 16-Bit Interval Timer with Prescaler |
| Power Dissipation | 70 mW Typical at 3.3 V, < 0.55 mW in Powerdown Mode |
| Package | 128-Lead TQFP and 128-Lead PQFP |
| External Interrupts | Up to three, edge or level sensitive |
Key Features
- Combines the ADSP-2100 base architecture with enhanced instructions for bit manipulation, multiplication, and biased rounding.
- Includes three computational units: Independent ALU, Multiplier/Accumulator, and Barrel Shifter.
- Two independent data address generators (DAGs) for simultaneous dual operand fetches.
- Powerful program sequencer with zero overhead looping and conditional instruction execution.
- Dual-purpose program memory for both instruction and data storage.
- Single-cycle instruction execution and single-cycle context switch.
- Low power dissipation in standby mode.
- Automatic booting of internal program memory from byte-wide external memory or through the host interface port.
Applications
The ADSP-2173BST-80 is suitable for a variety of applications requiring high-speed numeric processing and digital signal processing, such as:
- Audio and speech processing.
- Image processing.
- Telecommunications.
- Industrial control systems.
- Medical devices.
Q & A
- What is the typical power dissipation of the ADSP-2173BST-80 at 3.3 V?
The typical power dissipation is 70 mW at 3.3 V. - How many words of on-chip program memory does the ADSP-2173 have?
The ADSP-2173 has 2K words of on-chip program memory RAM. The ADSP-2172 has an additional 8K words of on-chip program memory ROM. - What is the instruction cycle time of the ADSP-2173 at 10 MHz crystal frequency?
The instruction cycle time is 50 ns, which corresponds to 20 MIPS at 10 MHz crystal frequency. - Does the ADSP-2173 support external interrupts?
Yes, it supports up to three external interrupts, which can be configured as edge or level sensitive. - What types of serial ports does the ADSP-2173 have?
The ADSP-2173 has two double-buffered serial ports with companding hardware and automatic data buffering. - Can the ADSP-2173 be booted from external memory?
Yes, it can automatically boot from byte-wide external memory or through the host interface port. - What is the package type of the ADSP-2173BST-80?
The package types available are 128-Lead TQFP and 128-Lead PQFP. - Does the ADSP-2173 have a powerdown mode?
Yes, it has a powerdown mode with less than 0.55 mW power dissipation. - How many computational units does the ADSP-2173 have?
The ADSP-2173 has three computational units: an Independent ALU, a Multiplier/Accumulator, and a Barrel Shifter. - What is the purpose of the data address generators (DAGs) in the ADSP-2173?
The DAGs provide addresses for simultaneous dual operand fetches from data memory and program memory.
