STMicroelectronics RHFOSC04 and RHFAHC00 logic devices for space applications

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STMicroelectronics has introduced the first two logic devices in a high-speed, radiation-hardened family that brings 150 MHz+ performance to space applications. The QML-V qualified RHFOSC04 integrated oscillator driver/divider and RHFAHC00 quad NAND gate are said to have more than twice the gate speed of typical rad-hard logic ICs, to ensure fast response in high-frequency circuits.

Designed with ST’s 130 nm CMOS technology, the devices combine their speed advantage with low operating current and good 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 1.8–3.6 V 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. 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 and Flat 10 devices.

For more information: www.st.com/fastlogic-pr.