As a Tekmos distributor, NAC supplies engineering and manufacturing support for legacy microprocessor technologies and ASIC designs.

Tekmos is a fabless semiconductor company located in Austin Texas. Tekmos specializes in replacement ASICs for end-of-life microcontrollers. All products are designed, tested and packaged in their BSI ISO 9001:2008 facility.


Tekmos engineered redesigns of Microcontrollers
Intel – 80C51, 80C31, 80C32
Intel – 80C186EB, 80C188EB
NXP – 83C751, 87C751, 89C668
Freescale – 68HC05, 68HC705
Freescale – 68HC11A,K, D, E, 68HC711
Custom variations based on these designs
ASIC and FPGA conversions engineered by Tekmos to ASICs

Tekmos can convert your ASIC or FPGA (Xilinx, Altera, Actel) into a Tekmos ASIC. Working from your design files, we generate a pin compatible ASIC with lower cost and long-term availability. Cycle times as low as 10 weeks for samples.

Standard Products engineered by Tekmos

Tekmos developed replacements for a number of standard products that include 4MB Serial FPGA Configuration memories, 65SC51 UART, 28C94 UART, 74C3893 Future Bus, 68HC24 port replacement unit, CAN Controllers.

High Temperature Semiconductors engineered by Tekmos

Tekmos offers products rated up to 225°C on our SOI process and up to 175°C on our 0.25u CMOS process. While designed for ASICs and mixed signal products, any of the Tekmos microcontrollers or standard products can be manufactured using these processes. These products are designed to support oil and gas, aerospace, automotive and industrial market.