Philips Semiconductors has announced that it has broken the 64 KB barrier with the first 8-bit 80C51 to support up to 16 MB of on-chip linear addressable memory. The 87C51Mx2 microcontroller family is the first in a broad line of large on-chip memory microcontrollers based on the company's new 51MX core.
The 51MX combines a significant increase in on-chip program and data memory together with high-level C language performance enhancements. Full binary object code compatibility is maintained, allowing design engineers to re-use existing 80C51 program codes. The architecture also retains 80C51 bus compatibility to allow re-use of existing peripherals and application specific integrated circuits (ASICs).
"Philips Semiconductors' 51MX family represents the future for the 80C51 architecture," says Geoff Lees, Director of Marketing, Microcontroller Business Line, Philips Semiconductors. "The 51MX is a unique embedded memory solution that creates a roadmap to greater functionality and increased performance, eliminating the need for software paging and costly external code-banking hardware."
The 51MX is an accelerated 80C51 architecture that executes instructions at twice the rate of standard 80C51 devices. Its 23 bit linear address supports up to 16 MB of on-chip or off-chip program and data memory.
The program counter is extended to 23 bits, and the stack pointer to 16 bits. A new 23 bit extended data pointer, together with two 24 bit universal pointers using existing general purpose registers, creates a 16 MB linear address range optimised for C compilers.
The 87C51MC2 is now available with 96 KB of OTP (one-time programmable) memory and 3 KB of RAM and the 87C51MB2 with 64 KB of OTP and 2 KB of RAM. Both devices operate with supply voltages from 2,7 V to 5,5 V and run at up to 24 MHz (5 V) with a typical instruction cycle time of 250 ns. The 87C51Mx2 family includes an integrated PCA (programmable counter array), two full-duplex enhanced UARTS, an industry-standard serial peripheral interface and a configurable watchdog timer.
Converter power modules for 48 V networks Altron Arrow
Power Electronics / Power Management
The economic and quality-of-life benefits of electrification is driving the adoption of HV to 48 V DC-DC conversion across many markets with 48 V power modules becoming more common.
Read more...Memory for asset tracking Altron Arrow
DSP, Micros & Memory
The Page EEPROM, ST’s latest memory, has been designed for efficient datalogging and fast firmware upload/download in battery-operated devices.
Read more...Engineered for high-reliability applications Future Electronics
DSP, Micros & Memory
The MCX E series of Arm Cortex-M4F and Arm Cortex-M7 microcontrollers from NXP are engineered for demanding industrial and IoT environments.
Read more...NXP’s development platform guide
DSP, Micros & Memory
Choosing between the FRDM i.MX 93, FRDM i.MX 91 and FRDM i.MX 91S development platforms can be intimidating, but once designers understand how each platform aligns with their application’s requirements, the decision becomes straightforward.
Read more...Microchip and AVIVA Links collaboration Altron Arrow
News
Microchip and AVIVA Links have achieved groundbreaking ASA-ML interoperability, accelerating the shift to open standards for automotive connectivity.
Read more...XJTAG launches two new Flash programmers ASIC Design Services
DSP, Micros & Memory
XJTAG has announced XJExpress and XJExpress-FPGA, a pair of Flash programmers perfect for development, debug and in-service applications.
Read more...Expanded STM32WL3x line for IoT sensors Altron Arrow
Telecoms, Datacoms, Wireless, IoT
The STM32WL31x and STM32WL30x are more tailored versions of the STM32WL33x for designers who wish to focus on specific features, while lowering their bill of materials.
Read more...Processor offers competitive solution for advanced HMIs Future Electronics
DSP, Micros & Memory
The new RZ/A3M microprocessor from Renesas features 128 Mbytes of fast DDR3L DRAM memory for system cost reduction, and supports 1280 x 800 px video resolution at a rate of 30 frames/s.
Read more...Ultra-low jitter clock buffers Altron Arrow
Telecoms, Datacoms, Wireless, IoT
New SKY53510/80/40 family of clock fanout buffers from Skyworks are purpose-built for data centres, wireless networks, and PCIe Gen 7 applications.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version