4-Mbit Flash System Memory for DSPs
10 March 2004
DSP, Micros & Memory
Surveillance
STMicroelectronics' 4-Mbit Flash DSM2150F5 is the company's third DSP system memory (DSM) product. It provides an in-system-programmable, turnkey system-memory solution for digital signal processors. In particular, the family is designed specifically to support Analog Devices' ADSP-2153x family of DSPs, but also supports their other general-purpose 16-bit and 32-bit DSP families.
The DSM2150F5 provides two independent Flash memory arrays of 512 Kbytes and 32 Kbytes (120 ns access time), an integrated programmable logic device array with over 3000 gates and 16 macrocells, and up to 40 multifunction I/O pins. By integrating Flash memory, programmable logic, and I/O ports, the DSM2150F5 connects directly and without additional logic to the DSP to form a simple, flexible two-chip subsystem on which to build DSP-based products for a wide range of applications.
The DSM2150F5 provides in-system programmability (ISP) via its JTAG ISP port. In this way, the company says that the device helps cut development time and eliminates the need for socket-mounted pre-programmed memory and logic devices. Other benefits are efficient just-in-time manufacturing, and simplified product manufacturing, testing, and field updates. The entire device (memory and configuration) can be programmed in 15-35 seconds via JTAG, with no involvement of the DSP. In addition, the DSM2150F5's JTAG port can be connected to the JTAG debug port of the DSP for fast code iterations on the bench. Designers can configure the DSM2150F5 in situ using PSDsoft Express, a point-and-click development tool available free of charge at www.st.com/psd.
While the large 512 Kbyte main Flash memory is ample storage for code and data tables to be boot loaded into DSP SRAM, the smaller sector size of the secondary 32 Kbyte Flash memory is ideal for storing small data sets and calibration constants, thus eliminating the need for an external EEPROM. The DSM2150F5 has 40 multifunction configurable I/O pins.
Further reading:
Pentagon appointed as Milestone distributor
Elvey Security Technologies
News & Events Surveillance
Milestone Systems appointed Pentagon Distribution (an Elvey Group company within the Hudaco Group of Companies) as a distributor. XProtect’s open architecture means no lock-in and the ability to customise the connected video solution that will accomplish the job.
Read more...
The 8-bit survival syndrome – Part 2
DSP, Micros & Memory
Just like the 4-bit pre-microcontroller, the 8-bit MCU has been finding ways to stick around. Their features and speeds have been improving, offering competitive reasons to work with them.
Read more...
Enhanced code protection for USB µC portfolio
Future Electronics
DSP, Micros & Memory
To help easily incorporate USB power and communication functionality into embedded systems, Microchip Technology has launched the AVR DU family of microcontrollers.
Read more...
General-purpose MCU with RISC-V architecture
EBV Electrolink
DSP, Micros & Memory
Renesas has released a general-purpose MCU to enhance its existing RISC-V portfolio, and this is its first MCU using a RISC-V core developed internally at the company.
Read more...
8-bit MCU with I3C support
Avnet Silica
DSP, Micros & Memory
The PIC18-Q20 8-bit microcontrollers from Microchip easily interface with devices operating in multiple voltage domains, and the built-in I3C interface supports higher-speed and lower-power data transfers than I2C.
Read more...
An evolutionary step in customisable logic
Altron Arrow
DSP, Micros & Memory
Microchip Technology is offering a tailored hardware solution with the launch of its PIC16F13145 family of microcontrollers, which are outfitted with a new Configurable Logic Block module.
Read more...
MCU for battery-powered applications
Altron Arrow
DSP, Micros & Memory
Included in ST’s family of devices is the STM32U031, an ultra-low-power MCU featuring an ARM Cortex-M0+ 32-bit core running at up to 56 MHz.
Read more...
Serial SRAM up to 4 MB
EBV Electrolink
DSP, Micros & Memory
The chips are designed to provide a lower-cost alternative to traditional parallel SRAM products, and include optional battery backup switchover circuitry in the SRAM memory to retain data on power loss.
Read more...
SiP supports LTE/NB-IoT and GNSS
RF Design
DSP, Micros & Memory
The nRF9151 from Nordic Semiconductor is an integrated System-in-Package that supports LTE-M/NB-IoT, DECT NR+ and GNSS services.
Read more...
Qi2 dsPIC33-based reference design
DSP, Micros & Memory
Powered by a single dsPIC33 Digital Signal Controller, the Qi2 reference design offers efficient control for optimised performance.
Read more...
printer friendly version