Features
• 1.25 Micron Radiation Hardened SOS CMOS
• Total Dose 300K RAD (Si)
• Single Event Upset (SEU) Immunity
<1 x 10-10 Errors/Bit-Day (Typ)
• SEU LET Threshold >80 MEV-cm2/mg
• Dose Rate Upset >1011 RAD (Si)/s, 20ns Pulse
• Latch-Up Free Under Any Conditions
• Military Temperature Range: -55oC to +125oC
• Significant Power Reduction Compared to ALSTTL Logic
• DC Operating Voltage Range: 4.5V to 5.5V
• Input Logic Levels
- VIL = 30% of VCC Max
- VIH = 70% of VCC Min
• Input Current 1A at VOL, VOH

Description
The Intersil ACS374MS is a radiation hardened octal D-type
flip-flop with three-state outputs. The eight edge-triggered flipflops enter data into their registers on the low to high transition
of clock (CP). The Output Enable (OEN) controls the three-state
outputs and is independent of the register operation. When the
OEN is high, the outputs will be in the high impedance state.
The ACS374MS utilizes advanced CMOS/SOS technology to
achieve high-speed operation. This device is a member of the
radiation hardened, high-speed, CMOS/SOS Logic Family.