A New Revision to the TK89C668
By Lynn Reed

Tekmos is pleased to announce a revision to the popular TK89C668 microcontroller. Based on the 8051 architecture, this 5-volt microcontroller offers 64K of program storage, an I2C controller, and 8K of XRAM...

High Temperature ROM Design
By Lynn Reed

In the previous two articles, we discussed ROM bits and word drivers. In this article, we will discuss the sense amps. Or more accurately, we will discuss the bit line precharge....

Part IV Design of Dual Port RAM
By Lynn Reed

The Sense Amps Part IV.  This is the fourth in a series of articles on the design of a dual port RAM.  When a memory is read, the word line enables a row of bits. Each bit is....

Part V Design of Dual Port RAM
By Lynn Reed

In this final article about RAM design, I am going to discuss the timing necessary to make the RAM work.  Between memory cycles, the RAM is in a precharge mode. All bit lines are being held at Vdd. All word...

Replacing Obsolete Flash Memories
By Lynn Reed

Flash memories have been around long enough so that the original parts have gone obsolete. And while larger flashes could be used to replace older flashes, there are.....

Reprogrammable IP for High Temperature ASICs
By Lynn Reed

Tekmos makes ASICs, which are definitely not programmable. But sometimes, customers need a little bit of programmability in an ASIC. Just look at the increase in FPGAs....

RISC
By Lynn Reed

Tekmos serves several high reliability markets, such as aerospace, military, and oil. It is therefore only natural that much of our internal R&D efforts are directed toward increasing the reliability of our products...

Space Parts Working Group
By Lynn Reed

Last month, Tekmos sent a representative to the annual meeting of the Space Parts Working Group. This is a meeting of government users of satellites, companies that...

Tekmos Announces a New Release of the TK68HC711D3 and TK68HC11D0 Microcontrollers
By Lynn Reed

Tekmos has announced the qualification and release of two of our microcontrollers, the TK68HC711D3 and TK68HC11D0. The micros were originally made at our..

Test and Characterization Services
By Lynn Reed

Tekmos offers test and characterization services. As a fabless semiconductor company, Tekmos has an internal test facility, with testers ranging up to 320 pins in size. We offer access to these facilities and the...

The Breakeven Point on FPGA Conversions
By Lynn Reed

An FPGA conversion consists of implementing an FPGA based design in an ASIC. There can be multiple reasons for doing this, such as reliability, power dissipation, or....

The Design of a Masked ROM
By Lynn Reed

This is the first in a series of articles covering the design of a masked ROM. It will cover the choices behind making a masked ROM, and the design of the ROM array.

TK68HC705C9A Microcontroller
By Lynn Reed

Tekmos' expanded line of microcontrollers includes the replacements for the NXP (Freescale) MC68HC705C8A and MC68HC705C9A microcontrollers.  The TK68HC705C9A is an 8-bit microcontroller. The....

TK89H51B
By Lynn Reed

The TK89H51B family is based on the 8051 architecture, is designed to work in high temperature environments up to 210ºC. There are three versions, defined by.....

Word Line Drivers
By Lynn Reed

In my last article, I discussed the design of the ROM bits. This article will cover the word line drivers.  Our ROM has 512 word lines. A brute force approach would use...