STMicroelectronics has released the first two logic devices in a new high-speed, radiation-hardened family that brings 150MHz+ performance to space applications.

The QML-V qualified RHFOSC04 (SMD 5962F20207) integrated oscillator driver/divider and RHFAHC00 (SMD 5962F18202) quad NAND gate have more than twice the gate speed of typical rad-hard logic ICs to ensure faster response in high-frequency circuits.

Designed with ST’s proprietary 130nm CMOS technology already proven throughout the space industry, the new devices combine their speed advantage with low operating current and a best-in-class radiation hardness with an RHA (Radiation Hardness Assurance) qualified TID at 300 krad (Si) and immunity to SEL and SET up to 125 MeV.cm2/mg.

Their supply-voltage range of 1.8V-3.6V helps meet the tight power and energy restrictions typical on-board satellites and space vehicles.

The RHFOSC04 combines the roles of multiple discrete logic components to drive a crystal oscillator directly, which simplifies circuit design and enhances stability while saving board space and increasing system reliability. The divider adds flexibility by providing nominal-frequency, divide-by-2, divide-by-4, and divide-by-8 outputs.

The devices are available as bare die ready for System-in-Package (SiP) integration in customers’ applications or packaged as ceramic hermetic Flat 14 (RHFAHC00) and Flat 10 (RHFOSC04) devices. Please contact your ST sales office for pricing options and sample requests.

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