Description
The Intersil HCS253MS is a Radiation Hardened 4-to-1 line selector multiplexer having three-state outputs. One of four sources for each section is selected by the common select inputs S0 and S1. When the output enable (1OE or 2OE) is HIGH, the output is in the high impedance state.
The HCS253MS utilizes advanced CMOS/SOS technology to achieve high-speed operation. This device is a member of radiation hardened, high-speed, CMOS/SOS Logic Family.

Features
• 3 Micron Radiation Hardened SOS CMOS
• Total Dose 200K RAD (Si)
• SEP Effective LET No Upsets: >100 MEV-cm2/mg
• Single Event Upset (SEU) Immunity < 2 x 10-9 Errors/Bit-Day (Typ)
• Dose Rate Survivability: >1 x 1012 RAD (Si)/s
• Latch-Up Free Under Any Conditions
• Fanout (Over Temperature Range)
    - Bus Driver Outputs - 15 LSTTL Loads
• Military Temperature Range: -55°CC to +125°C
• Significant Power Reduction Compared to LSTTL ICs
• DC Operating Voltage Range: 4.5V to 5.5V
• Input Logic Levels
    - VIL = 0.3 VCC Max
    - VIH = 0.7 VCC Min
• Input Current Levels Ii ≤ 5µA at VOL, VOH