CD4043 Quad NOR R-S Latch Tri-State IC SMD Package

CD4043 Quad NOR R-S Latch Tri-State IC SMD Package 

The CD4043 is a CMOS-based quad R-S (Reset–Set) latch integrated circuit that contains four independent NOR-gate latches with tri-state outputs. Each latch can store one bit of digital data and maintains its state until new set or reset signals are applied. The tri-state output feature allows the outputs to be placed in a high-impedance condition, enabling multiple devices to share a common data bus without interference. The IC offers low power consumption, high noise immunity, and a wide operating voltage range, making it suitable for memory storage, control logic, and bus-oriented digital systems. Its compact SMD package is ideal for space-saving PCB designs in modern electronic applications.

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Features

• Four independent R-S latches
• NOR gate based latch configuration
• Tri-state (3-state) outputs
• Stores 4 bits of digital data
• Wide supply voltage range (typically 3V to 15V)
• Low power CMOS technology
• High noise immunity
• Low standby power consumption
• High input impedance
• Fast switching response
• Common output enable control
• Compatible with CMOS and TTL logic levels
• Compact SMD package

Applications

• Temporary data storage
• Digital memory elements
• Bus-oriented systems
• Microcontroller interfacing
• Control and timing circuits
• Signal holding circuits
• Register and buffer circuits
• Industrial control logic
• Embedded systems
• Data latching and synchronization