Category: HEF4000 
The HEF series is a family of CMOS logic ICs known for their extremely low power consumption, wide operating-voltage range (typically 3 V to 15 V), and high noise immunity, making them well-suited for both battery-powered and industrial applications. These devices follow the classic 4000-series CMOS logic functions but offer improved speed and robustness, while maintaining compatibility with a broad variety of digital systems. Because they draw very little current and tolerate higher supply voltages than many other logic families, HEF chips are often used in analog-digital interfacing, timing circuits, and general-purpose logic where reliability and efficiency are key.
Components referencing this category:
- HEF4001 - Quad 2-input NOR gate
- HEF4002 - 2 4-input NOR gates
- HEF4008 - 4-bit binary full adder
- HEF40098 - Hex inverting buffer; 3-state
- HEF40106 - Hex inverting Schmitt trigger
- HEF4011 - Quad 2-input NAND gate
- HEF4013 - Dual D-type flip-flop
- HEF4015 - Dual 4-bit static shift register
- HEF4016 - Quadruple bilateral analogue switches
- HEF4017 - 5-stage Johnson decade counter
- HEF4019 - Quadruple 2-input multiplexer
- HEF40192 - 4-bit up/down decade counter
- HEF40193 - 4-bit up/down binary counter
- HEF40194 - 4-bit bidirectional universal shift register
- HEF4020 - 14-stage binary counter
- HEF4021 - 8-bit static shift register
- HEF4022 - 4-stage divide-by-8 Johnson counter
- HEF4023 - Triple 3-input NAND gate
- HEF4025 - Triple 3-input NOR gate
- HEF4027 - Dual JK flipflop
- HEF4028 - BCD to decimal decoder
- HEF4030 - Quadruple exclusive-OR gate
- HEF4035 - 4-bit universal shift register
- HEF40374 - Octal D-type flip-flop with 3-state outputs
- HEF4040 - 12 stage binary ripple counter (Schmitt-trigger CP)
- HEF4041 - Quadruple true/complement buffer
- HEF4046 - Phase-locked loop
- HEF4047 - Monostable/astable multivibrator
- HEF4049 - Hex inverting buffers
- HEF4050 - Hex non-inverting buffers
- HEF4051 - 8-channel analog multiplexer/demultiplexer
- HEF4053 - Triple single-pole double-throw analog switch
- HEF4066 - Quad single-pole single-throw analog switch
- HEF4071 - Quad 2-input OR gate
- HEF4077 - 4 * 2-input exclusive NOR
- HEF4104 - 4 * low-to-high voltage translator; 3-state
- HEF4510 - Presetable 4bit up/down counter
- HEF4512 - 8-input multiplexer; 3-state
- HEF4515 - 1-of-16 decoder/demultiplexer with input latches
- HEF4518 - Dual BCD counter
- HEF4543 - BCD to 7-segment latch/decoder/driver
Internal identifier: HEF4000 - Created: 2026-02-12 16:36:16