CHT-74021-CSOIC16-T

CHT-74021 DATASHEET Revision: 3.7 10-Dec-23 (Last Modified Date) High-Temperature, Quad 2-Inputs NOR Gate General Description Features The CHT-74021 contains four independent 2-inputs NOR gates, performing the Boolean function : • Qualified from -55 to +225°C (Tj) • 3.3 to 5V (±10%) supply voltages • Latchup-free at any supply and tem- Y=A+B perature condition • This circuit is designed assuring latchupfree operation for all supply and temperature conditions. Validated at 225°C for 30000 hours (CDIL14) and 20000 hours (CSOIC16) (and still on-going) The CHT-74021 can operate with supply voltages from 3.3 to 5V (±10%). • Available in DIL14 and CSOIC16 hermetic standard package Applications • Well logging, • Automotive, Aeronautics & Aerospace • Harsh Environments Package and Pin Configuration DIL14 IN1 A IN1 B OUT1 IN2 A IN2 B 1 2 3 4 5 14 13 12 11 10 VDD IN4 A IN4 B OUT4 IN3 A OUT2 6 9 IN3 B VSS 7 8 OUT3 PUBLIC Doc. DS-080209 V3.7 Pin Symbol Description 1 IN1 A Input A of the NOR gate number 1 2 IN1 B Input B of the NOR gate number 1 3 OUT1 Output of the NOR gate number 1 4 IN2 A Input A of the NOR gate number 2 5 IN2 B Input B of the NOR gate number 2 6 OUT2 Output of the NOR gate number 2 7 VSS Circuit core ground terminal. 8 OUT3 Output of the NOR gate number 3 9 IN3 B Input B of the NOR gate number 3 10 IN3 A Input A of the NOR gate number 3 11 OUT4 Output of the NOR gate number 4 12 IN4 B Input B of the NOR gate number 4 13 IN4 A Input A of the NOR gate number 4 14 VDD Circuit core power supply terminal. WWW.CISSOID.COM 1 of 9 CHT-74021 Datasheet 10-Dec-23 (Last Modification Date) SOIC16 IN1 A IN1 B OUT1 IN2 A 1 16 2 15 3 14 4 13 VDD IN4 A IN4 B OUT4 IN2 B 5 12 IN3 A OUT2 6 11 IN3 B VSS 7 10 N.C. 8 9 OUT3 N.C. Pin Symbol Description 1 IN1 A Input A of the NOR gate number 1 2 IN1 B Input B of the NOR gate number 1 3 OUT1 Output of the NOR gate number 1 4 IN2 A Input A of the NOR gate number 2 5 IN2 B Input B of the NOR gate number 2 6 OUT2 Output of the NOR gate number 2 7 VSS Circuit core ground terminal. 8 NC Not connected 9 NC Not connected 10 OUT3 Output of the NOR gate number 3 11 IN3 B Input B of the NOR gate number 3 12 IN3 A Input A of the NOR gate number 3 13 OUT4 Output of the NOR gate number 4 14 IN4 B Input B of the NOR gate number 4 15 IN4 A Input A of the NOR gate number 4 16 VDD Circuit core power supply terminal. Function Table INPUT A B OUTPUT Y L L H H L H L H H L L L Function and Logical Diagrams IN1 A OUT1 IN1 B A Y IN2 A OUT2 B IN2 B IN3 A OUT3 IN3 B IN4 A OUT4 IN4 B Figure 1. CHT-74021: simplified block diagram. PUBLIC Doc. DS-080209 V3.7 WWW.CISSOID.COM 2 of 9 CHT-74021 Datasheet 10-Dec-23 (Last Modification Date) Absolute Maximum Ratings Operating Conditions Supply Voltage VDD to GND Voltage on any Pin to GND Supply Voltage VDD to GND Junction temperature -0.5 to 6.0V -0.5 to VDD+0.5V ESD Rating (expected) Human Body Model 3.3V to 5V (±10%) -55°C to +225°C 1kV DC Electrical Characteristics Unless otherwise stated: VDD=5V, Tj=25°C. Bold underlined figures indicate values valid over the whole temperature range (-55°C < Tj < +225°C). Parameter Supply voltage VDD Condition Min Typ 2.97 Max Units 5.5V V VDD = 3.3V, Tj=-55°C 4 VDD = 5V, Tj=-55°C 13 Quiescent current IDD nA VDD = 3.3V, Tj=225°C 2340 VDD = 5V, Tj=225°C 2550 VDD = 3.3V, IOH