The Intersil HS-54C138RH is a radiation hardened 3- to 8-line decoder fabricated using a radiation hardened EPI-CMOS process. It features low power consumption, high noise immunity, and high speed. Also featured are pin and function compatibility with the 54LS138 industry standard part. The HS-54C138RH is ideally suited for high speed memory chip select address decoding. It is intended for use with the Intersil HS-80C85RH radiation hardened microprocessor, but it can also be utilized as a demultiplexer in any low power rad-hard application.

Features
• Electrically Screened to SMD # 5962-95825
• QML Qualified per MIL-PRF-38535 Requirements
• Radiation Hardened EPI-CMOS
    - Total Dose . . . . . . . . . . . . . . . . . . . . . . 1 x 105RAD(Si)
    - Latch-Up Immune . . . . . . . . . . . . . . >1 x 1012RAD(Si)/s
• Multiple Input Enable for Easy Expansion
• Single Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . .+5V
• Outputs Active Low
• Low Standby Power . . . . . . . . . . . . . . .0.5mW Max at +5V
• High Noise Immunity
• Equivalent to Sandia SA2995
• Bus Compatible with Intersil Rad-Hard 80C85RH
• Full Military Temperature Range . . . . . . . -55°C to 125°C