Overview
The ADSP-2185MBSTZ-266 is a single-chip microcomputer from Analog Devices Inc., optimized for digital signal processing (DSP) and other high-speed numeric processing applications. This device combines the ADSP-2100 family base architecture with advanced features such as two serial ports, a 16-bit internal DMA port, a byte DMA port, a programmable timer, Flag I/O, and extensive interrupt capabilities. It is designed to meet the low power needs of battery-operated portable equipment and is available in a 100-lead LQFP package.
Key Specifications
| Parameter | Value |
|---|---|
| Instruction Cycle Time @ 2.5 V (Internal) | 13.3 ns |
| Sustained Performance | 75 MIPS |
| Supply Voltage | Up to 3.6 V |
| Max Operating Temperature | 85 °C |
| On-Chip Memory | 80K bytes (16K words of 24-bit program RAM and 16K words of 16-bit data RAM) |
| Serial Ports | Two double-buffered serial ports with companding hardware and automatic data buffering |
| Package | 100-lead LQFP (14mm x 14mm) |
| Power-Down Mode | Low CMOS standby power dissipation with 200 CLKIN cycle recovery |
Key Features
- Single-cycle instruction execution and single-cycle context switch
- 3-bus architecture allowing dual operand fetches in every instruction cycle
- ADSP-2100 family code compatible with instruction set extensions
- Three independent computational units: ALU, multiplier/accumulator (MAC), and shifter
- Automatic booting of on-chip program memory from byte-wide external memory or through internal DMA port
- Six external interrupts and 13 programmable flag pins
- UART emulation through software and SPORT reconfiguration
- ICE-Port™ emulator interface for debugging in final systems
Applications
The ADSP-2185MBSTZ-266 is suitable for a variety of applications requiring high-speed numeric processing and digital signal processing, including:
- Audio and speech processing
- Image and video processing
- Telecommunications and networking equipment
- Medical devices and diagnostic equipment
- Industrial control and automation systems
- Battery-operated portable equipment due to its low power consumption features
Q & A
- What is the instruction cycle time of the ADSP-2185MBSTZ-266 at 2.5 V?
The instruction cycle time is 13.3 ns at 2.5 V.
- What is the sustained performance of the ADSP-2185MBSTZ-266?
The sustained performance is 75 MIPS.
- How much on-chip memory does the ADSP-2185MBSTZ-266 have?
The device has 80K bytes of on-chip memory, configured as 16K words of 24-bit program RAM and 16K words of 16-bit data RAM.
- What types of serial ports does the ADSP-2185MBSTZ-266 have?
The device has two double-buffered serial ports with companding hardware and automatic data buffering.
- What is the maximum operating temperature of the ADSP-2185MBSTZ-266?
The maximum operating temperature is 85 °C.
- What package options are available for the ADSP-2185MBSTZ-266?
The device is available in a 100-lead LQFP package.
- Does the ADSP-2185MBSTZ-266 support power-down modes?
Yes, it features low CMOS standby power dissipation with 200 CLKIN cycle recovery from power-down condition.
- What computational units are included in the ADSP-2185MBSTZ-266?
The device includes three independent computational units: ALU, multiplier/accumulator (MAC), and shifter.
- Can the ADSP-2185MBSTZ-266 be used in battery-operated devices?
Yes, it is designed to meet the low power needs of battery-operated portable equipment.
- What is the ICE-Port™ emulator interface used for?
The ICE-Port™ emulator interface supports debugging in final systems.
