Features

• 2.3 V to 3.6 V supply (4.8 V AMR)

• High speed:

– Characterized from 16 MHz to 120 MHz

• CMOS output, meets JEDEC

• Divided-frequency single output

• Low power

• TTL compatible

• Enable/disable function

• Immunity to radiations:

– 300 krad(Si) TID

– SEL free up to 125 MeV.cm²/mg

– SET free up to 125 MeV.cm²/mg

• SMD 5962F20207

• Mass: 0.42 g

Description

The RHFOSC04 is a crystal oscillator driver and divider. It consists of an oscillator

section and 4-stage ripple-carry binary counter. The oscillator section allows the

implementation of crystal oscillator circuits. The output is buffered and it is controlled

by a 2-bit digital cell to deliver one among four divided frequency, from F to F/2, F/4

and F/8 frequencies. A disable function is available to set the circuit in power-down

mode while keeping a high impedance output.

Designed in rad-hard rules on robust CMOS technology already proven in space, the

RHFOSC04 shows an excellent stability in total-ionizing-dose (TID) up to 300

krad(Si) and it is SEL-free and SET-free up to 125 MeV.cm²/mg.

It comes in hermetic ceramic Flat-10 lead, and can operate from -55 °C to +125 °C

ambient temperature.

Applications

• Oscillators for space systems