GENERAL DESCRIPTION
Aeroflex’s RHD8540 is a radiation hardened, single supply, 64-Channel Multiplexer MCM (multi-chip module). The RHD8540 design uses specific circuit topology and layout methods to mitigate total ionization dose effects and single event latchup. These characteristics make the RHD8540 especially suited for the harsh environment encountered in Deep Space missions. It is available in a 96 lead High Temperature Co-Fired Ceramic (HTCC) Quad Flatpack (CQFP). It is guaranteed operational from -55°C to +125°C. Available screened in accordance with MIL-PRF-38534 Class K, the RHD8540 is ideal for demanding military and space applications.

FEATURES
❐ 64 channels (32 Kelvin measurement channels) provided by six 16-channel multiplexers
❐ Single power supply operation at +3.3V to +5V
❐ Radiation performance
   - Total dose: >1Mrad(Si), Dose rate = 50 - 300 rads(Si)/s
   - ELDRS Immune
   - SEL Immune: >100 MeV-cm2/mg
   - Neutron Displacement Damage: >1014 neutrons/cm2
❐ Full military temperature range
❐ Low power consumption < 33.6 mW
❐ CMOS analog switching allows rail to rail operation and low switch impedance
❐ Two address busses A(0-3) & B(0-3) and four enable lines afford flexible organization
❐ Designed for aerospace and high reliability space applications
❐ Packaging – Hermetic ceramic
   - 96 leads, 1.320"Sq x 0.200"Ht quad flat pack
   - Weight - 15 grams max
❐ Aeroflex Plainview’s Radiation Hardness Assurance Plan is DLA Certified to MIL-PRF-38534, Appendix G.