CMOS Quad Exclusive-NOR Gate Description The HEF4077B is a quad 2-input EXCLUSIVE-NOR gate. The outputs are fully buffered for the highest noise immunity and pattern insensitivity to output impedance. The HEF4077B operates over a recommended VDD power supply range of 3 V to 15 V referenced to VSS (usually ground). Unused inputs must be connected to VDD, VSS, or another input. Features - Fully static operation - 5 V, 10 V, and 15 V parametric ratings - Standardized symmetrical output characteristics - Specified from -40 °C to +85 °C - Complies with JEDEC standard JESD 13-B https://elecena.pl/product/9715396/hef4077bt-xnor-gate-quad-3-15-v-so-14 2017-08-06 https://elecena.pl/product/9715396/hef4077bt-xnor-gate-quad-3-15-v-so-14 2018-04-25 https://elecena.pl/product/9715396/hef4077bt-xnor-gate-quad-3-15-v-so-14 2019-04-02 https://elecena.pl/product/9715396/hef4077bt-xnor-gate-quad-3-15-v-so-14 2019-06-21 https://elecena.pl/product/9715396/hef4077bt-xnor-gate-quad-3-15-v-so-14 2021-12-08 https://elecena.pl/product/9715396/hef4077bt-xnor-gate-quad-3-15-v-so-14 2022-10-04 https://elecena.pl/product/9715396/hef4077bt-xnor-gate-quad-3-15-v-so-14 2022-10-21 https://elecena.pl/product/9715396/hef4077bt-xnor-gate-quad-3-15-v-so-14 2023-02-12 https://elecena.pl/product/9715396/hef4077bt-xnor-gate-quad-3-15-v-so-14 2025-12-12 https://elecena.pl/product/9715396/hef4077bt-xnor-gate-quad-3-15-v-so-14 2026-02-04