CD4044BCN

Latches Overview

The CD4044BCN is a quad NAND R/S latch manufactured by Fairchild Semiconductor. It operates within a supply voltage range of 3V to 15V and features a common three-state enable input for all four latches. The device utilizes a 16-lead Plastic Dual-In-Line (PDIP) package. Key electrical characteristics include a quiescent current of 0.01 µA at 5V, low-level output current up to 0.64 mA at 5V, and high-level output current up to -0.64 mA at 5V. Propagation delay from Set/Reset to Q is typically 350 ns at 5V.

Latches Feature Summary

• Quad cross-couple CMOS NAND latch architecture with individual SET and RESET inputs per latch
• Common three-state ENABLE input that disconnects latch states from Q outputs when logic '0' is applied
• Wide operating supply voltage range supporting 3V to 15V operation
• High noise immunity characteristic typical of the 4000 series CMOS technology

Latches Applications

• Multiple bus storage systems
• Strobed register applications
• General digital logic circuits requiring independent storage with output enable

Latches Procurement Notes

Verify the manufacturer origin, as Fairchild Semiconductor assets were acquired by onsemi. Confirm the specific ordering code suffix matches the required package type and ensure compliance with the life support policy restrictions defined in the datasheet before deployment in critical systems.

Latches Selection Notes

Select this component for designs requiring quad NAND latching with shared output control. Compare against the CD4043BC if NOR latch functionality is needed instead. Ensure the application environment stays within the specified -55°C to +125°C temperature range and does not exceed the absolute maximum ratings for voltage or power dissipation.

Latches Part Context

This part belongs to the CD4000 series of CMOS logic devices. It is functionally similar to other quad latch variants but specifically implements NAND-based set/reset logic. The 'BC' designation indicates the commercial grade variant, while the 'N' suffix specifies the 16-lead PDIP package format.

Latches Replacement Considerations

CD4043BCN provides equivalent physical packaging but uses NOR latch configuration instead of NAND. Other generic CD4044B variants may be considered if the three-state enable feature is not required.