The HCF40106YM013TR is a logic chip manufactured by STMicroelectronics. It is a silicon monolithic integrated circuit with 6 NAND Gates. The chip is a dedicated logic circuit, providing discrete logical functions similar to those found in one package configuration of the HCF400 series AY-3-1015,originally developed by GI. This chip features high speed, low power output stage. HCF40106YM013TRhas a very low supply current of 12µA(MAX.) and logic levels compatible with TTL circuits with a high noise margin of 1.8V at high level and 0.8Vat low level. It also has an operating temperature range of -55? to 125?.