DESCRIPTION
   The UT54ACS299E 8-bit shift/storage register is built using Aeroflex’s Commercial RadHardTM epitaxial CMOS technology and is ideal for space applications. The UT54ACS299E is an 8-bit universal shift/storage register featuring multiplexed I/O ports to achieve full 8-bit data handling in a single 20-pin package.

FEATURES
• Common parallel I/O for reduced pin count
• Additional serial inputs and outputs for expansion
• Three-state outputs for bus-oriented applications
• Operate with outputs enabled or at high impedance
• Four operating modes: shift left, shift right, load and store
• Can be cascaded for n-bit word lengths
• 0.6μm Commercial RadHardTM CMOS
   - Total dose: 100K rad(Si)
   - Single Event Latchup immune
   - SEU Onset LET: 95 MeV-cm2/mg (4.5V) and
      48MeV-cm2/mg (3.0V)
• Applications:
   - Stacked or push-down registers
   - Buffer storage
   - Accumulator registers
• Output source/sink 24mA
• Available QML Q or V processes
• Standard Microcircuit Drawing 5962-06238
• Package:
   - 20-lead flatpack