Features
• Devices QML Qualified in Accordance with MIL-PRFF-38535
• Detailed Electrical and Screening Requirements are Contained in
SMD# 5962-96713 and Intersil’s QM Plan
• 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 . . . . . . . . . . . . . . . . . . . . . . . >100 MEV-cm2/mg
• Dose Rate Upset . . . . . . . . . . . . . . . . >1011 RAD (Si)/s, 20ns Pulse
• Dose Rate Survivability. . . . . . . . . . . >1012 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 = 0.8V Max
- VIH = VCC/2 Min
• Input Current ≤ 1µA at VOL, VOH
• Fast Propagation Delay . . . . . . . . . . . . . . . . 20ns (Max), 13ns (Typ)

Description
The Intersil ACTS74MS is a Radiation Hardened Dual D Flip Flop with
Set(s) and Reset (R). The logic level at data input is transferred to the
output during the positive transition of the clock. The Set and Reset are
independent from the clock and accomplished by a low level on the
appropriate input.
The ACTS74MS utilizes advanced CMOS/SOS technology to achieve
high-speed operation. This device is a member of a radiation hardened,
high-speed, CMOS/SOS Logic Family.
The ACTS74MS is supplied in a 14 lead Ceramic Flatpack (K suffix) or a
14 Lead Ceramic Dual-In-Line Package (D suffix).