Concurrent flash and programmable logic for 16/32 bit MCUs and DSPs
9 May 2001
DSP, Micros & Memory
STMicroelectronics has introduced a new family of ultra low-power programmable system devices (PSDs) that provide 100% in-system programmable concurrent flash memory, SRAM, programmable logic, and extra I/O for 16 and 32 bit microcontrollers from major vendors, such as Motorola, Intel, Hitachi, Infineon and Philips, as well as DSPs from Texas Instruments and Analog Devices. According to ST many of these 16 bit controllers have no flash memory and those that do are limited to 128 KB.
Two devices are being introduced, the PSD4135G2 and the PSD4235G2. Both have 512 KB flash, a second concurrent 32 KB flash array, 8 KB of SRAM, a built-in configurable interface for 16 bit and 32 bit MCUs or DSPs, a programmable address decoder, and a small CPLD for chip selects, combinatorial logic and configurable pin-assignments.
The PSD4235G2 also has additional sequential logic in a 3000 gate general purpose CPLD. With 82 inputs and 24 outputs, the CPLD provides enough on-chip programmable logic to implement peripheral functions, such as shift registers, mail boxes, and serial channels. The PSD4235G2 also allows JTAG chaining during in-system programming. New PSD4000 Series devices will be added soon that expand the flash memory to 8 and 16 MB, and increase the SRAM to 256 Kb and 1 Mb.
An ISP JTAG port on PSD4000 devices can be used to program the entire device including memory, CPLD, and configuration logic in as little as twenty seconds, says STMicroelectronics, using its FlashLink programmer. Other solutions including single chip MCUs and convention flash memories require boot code in the system to perform the programming sequence.
PSD4000 devices are ideal for any high-performance embedded control systems that have large code and data storage requirements, such as controllers for voice processing, high capacity tape drives, fibre-optic lasers, and framer/router background controllers. Since they are 'in-application programmable' (IAP), they can be re-programmed remotely, without affecting system operation.
EDA tools support
STMicroelectronics' free PSDsoft Express EDA tool automatically generates the HDL for the MCU/DSP interface, address decoding, paging, segmentation, chip selects, and pin assignments for PSD4000 devices. For designers who want to use the PSD4235G2 general purpose CPLD to design custom peripherals with sequential logic, ST provides its PSDsoft 2000 EDA tool.
Further reading:
GigaDevice expands GD25UF Series density
NuVision Electronics
DSP, Micros & Memory
GigaDevice has announced the expanded density range of its GD25UF series 1,2 V ultra-low power SPI NOR Flash, now spanning from 8 Mb to 256 Mb.
Read more...
ARINC 429 line driver evaluation board
ASIC Design Services
DSP, Micros & Memory
Holt Integrated Circuits have announced the release of the ADK-85104 Evaluation Board, a compact, ready-to-use platform designed to help engineers rapidly evaluate and characterise Holt’s HI-85104.
Read more...
Highly integrated 24-channel mixed signal IC
EBV Electrolink
DSP, Micros & Memory
Microchip Technology has announced the LX4580, a 24-channel mixed-signal IC designed to replace multiple discrete components with a single device that supports synchronised data acquisition, fault monitoring, and motor control.
Read more...
Lower-power Thread and BLE connectivity
iCorp Technologies
DSP, Micros & Memory
Espressif has released the ESP32-H21, a low-power wireless SoC aimed at Thread, Matter, Zigbee, and Bluetooth LE device designs.
Read more...
Touch-enabled 32-bit MCU
EBV Electrolink
DSP, Micros & Memory
Microchip’s PIC32CM PL10 microcontroller family expands the company’s Arm Cortex-M0+ portfolio, delivering a compact, low-power 32-bit platform designed for cost-sensitive embedded applications.
Read more...
Build smarter with UNO Q
Electrocomp Express
DSP, Micros & Memory
The Arduino UNO Q’s hybrid design combines a Linux Debian-capable microprocessor with a real-time STM32U585 microcontroller making it the perfect dual-brain platform for the next innovation.
Read more...
Compact AI modules for imaging
Otto Wireless Solutions
DSP, Micros & Memory
SIMCom has introduced two compact smart AI modules, the SIM8666 and SIM8668, designed to simplify the development of imaging-based IoT applications.
Read more...
Compact Renesas MCU rapid development board
Dizzy Enterprises
DSP, Micros & Memory
Built around the Renesas R7FA4M2AD3CFP microcontroller, the Clicker 4 board provides engineers with a ready to use solution for prototyping and testing applications that require reliable ARM based processing and flexible expansion.
Read more...
IO Ninja and Python working hand-in-hand
RF Design
DSP, Micros & Memory
IO Ninja is a professional all-in-one terminal emulator, sniffer, and protocol analyser that runs natively on Windows, Linux, and macOS, and excels as a UI debugger for serial, network, USB, and all other forms of communication.
Read more...
GHz-speed multi-channel digitiser system
Vepac Electronics
DSP, Micros & Memory
A new Star Hub option from Spectrum Instrumentation enables the creation of scalable multi-channel data acquisition systems with ultrafast sampling speeds of up to 10 GS/s.
Read more...
printer friendly version