HCS193MS

DATASHEET HCS193MS Radiation Hardened Synchronous 4-Bit Up/Down Counter FN3065 Rev 1.00 September 1995 Features 3 Micron Radiation Hardened CMOS SOS 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 Dose Rate Upset >1010 RAD (Si)/s 20ns Pulse Latch-Up Free Under Any Conditions Military Temperature Range: -55oC to +125oC Significant Power Reduction Compared to LSTTL ICs DC Operating Voltage Range: 4.5V to 5.5V Input Logic Levels - VIL = 0.30% VCC Max - VIH = 0.70% VCC Min Input Current Levels Ii  5A at VOL, VOH Description The Intersil HCS193MS is a Radiation Hardened 4-bit binary UP/DOWN synchronous counter. Presetting the counter to the number on the preset data inputs (P0 - P3) is accomplished by a low on the asynchronous parallel load input (PL). The counter is incremented on the low to high transition of the clock-up input (high on the clock-down), decremented on the low to high transition of the clock-down input (high on the clock-up). A high level on the MR input overrides any other input to clear the counter to zero. The Terminal Count Up goes low half a clock period before the zero count is reached and returns high at the maximum count. The HCS193MS utilizes advanced CMOS/SOS technology to achieve high-speed operation. This device is a member of radiation hardened, high-speed, CMOS/SOS Logic Family. Pinouts ...