DSP, Micros & Memory


MCUs boast more Flash

28 May 2008 DSP, Micros & Memory

STMicroelectronics has increased the on-chip Flash capacity of its STR91xFA ARM966E-S based MCU family by introducing 1,1 MByte and 2,1 MByte variants.

The new devices are pin- and function-compatible with existing 288 KByte and 544 KByte versions in LQFP-80, LQFP-128 and BGA-144 packages, allowing engineers to scale designs easily without incurring expensive changes to their circuit boards.

As the first family to combine the ARM966E-S CPU core with Ethernet connectivity and large memory capacity including 96 KBytes of SRAM, the STR91xFA series now further extends the performance of networked embeddable systems such as Web servers, printer controllers and other applications that require large amounts of code or data storage. These applications also include point-of-sale terminals and peripherals, factory-automation equipment, serial-protocol gateways, security and surveillance equipment and building-automation systems.

The 1,1 MByte STR91xFAx46 and 2,1 MByte STR91xFAx47 enable engineers to build more complex embedded functionality using on-chip memory, thereby adding security against piracy, and saving board space as well as bill-of-materials costs. With integrated Ethernet, USB, and CAN interfaces, as well as a 10-bit ADC, multiple timers and up to 80 5 V-tolerant general-purpose I/Os, the devices deliver a single-chip solution capable of transforming embedded-control applications into low-cost nodes on a local network, or on the Internet.

Designers using the new STR91x devices in Ethernet-based solutions can also take advantage of the royalty-free TCP/IP stack recently announced by ST, which accelerates application development while occupying a footprint of less than 12 KByte of memory.

The ARM966E-S CPU core at the heart of the STR91x family achieves 96 MIPS peak performance at 96 MHz, by introducing several performance enhancements over the ARM7TDMI architecture. These include separate internal busses to high-speed burst Flash memory and zero-latency SRAM, each attached efficiently to the core through a highly optimised tightly-coupled memory (TCM) interface for rapid access. In addition, the core supports single-cycle digital signal processing (DSP) instructions, enabling the MCU to satisfy both control and signal-processing requirements and delivering clear advantages over traditional solutions based on separate DSP and control processors.

For more information contact Larry Gordon, Arrow Altech Distribution, +27 (0)11 923 9600, lgordon@arrow.altech.co.za, www.arrow.altech.co.za, Avnet Kopp, +27 (0)11 809 6100, sales@avnet.co.za, www.avnet.co.za



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Automotive MOSFETs in a variety of packages
29 April 2020, Altron Arrow , Power Electronics / Power Management
Reducing CO2 emissions of passenger cars is accelerating 48 V board net adoption. For this emerging 48 V market, Infineon Technologies offers a broad portfolio of automotive 80 V and 100 V MOSFETs as ...

Read more...
Chipset for Wi-Fi 6E applications
29 April 2020, Altron Arrow , Telecoms, Datacoms, Wireless, IoT
ON Semiconductor announced sampling of its new QCS-AX2 chipset family that supports the 6 GHz spectrum band based on the enhanced Wi-Fi 6E standard. Designed with a high-performance, flexible architecture ...

Read more...
Enabling cloud connectivity to all Microchip MCUs and MPUs
25 March 2020, Avnet South Africa , DSP, Micros & Memory
Due to the fragmented nature of the Internet of Things (IoT) marketplace, increasing project complexity and costs, today’s developers face more challenges in design decisions than ever before. These challenges ...

Read more...
Synchronous buck converter
29 April 2020, Altron Arrow , Power Electronics / Power Management
Diodes Incorporated introduced the AP62600 synchronous DC-DC buck converter for point-of-load (POL) conversion in applications such as TVs, monitors, white goods, home appliances, consumer electronics ...

Read more...
Tiny step-down regulator
29 April 2020, Altron Arrow , Power Electronics / Power Management
The LTM4657 is part of Analog Devices’ family of tiny, high-efficiency, identical pin-out, step-down µModule devices. The LTM4657 is designed to operate at lower switching frequencies than the LTM4626 ...

Read more...
Stackable DC-DC buck converter
29 April 2020, Avnet South Africa , Power Electronics / Power Management
Texas Instruments introduced a new 40 A SWIFT DC-DC buck converter, offering first-of-its-kind stackability of up to four ICs. The TPS546D24A PMBus buck converter can deliver up to 160 A of output current ...

Read more...
High-speed DDR4 SDRAMs
29 April 2020, Future Electronics , DSP, Micros & Memory
Alliance Memory has expanded its product offering with a new line of high-speed CMOS DDR4 SDRAMs. For improved performance over previous-generation DDR3 devices, the 4 GB AS4C256M16D4 and AS4C512M8D4 ...

Read more...
Guide for designing GUIs, for novices to experts
29 April 2020, Avnet South Africa , Design Automation
The TouchGFX team at STMicroelectronics recently published TouchGFX Documentation, a website that targets developers working on their first embedded graphical user interface (GUI) as well as those with ...

Read more...
Why low quiescent current matters for longer battery life
29 April 2020, Avnet South Africa , Power Electronics / Power Management
From healthcare and biosensing to wearables and environmental sensing, nearly all IoT devices rely on batteries that must perform reliably and over an extended period of time in a variety of conditions.

Read more...
Cryptographic MCU protects against malware
29 April 2020, Altron Arrow , DSP, Micros & Memory
With the rapid growth of 5G including new cellular infrastructure, growing networks and data centres supporting expanding cloud computing, developers are seeking new ways to ensure operating systems remain ...

Read more...