MC14044BDG

Latches Overview

The MC14044BDG is a CMOS MSI Quad R-S Latch manufactured by onsemi. It features four independent latches with Set and Reset inputs, each driving a Q output gated through three-state buffers controlled by a common Enable input. The device operates within a supply voltage range of 3.0 Vdc to 18 Vdc and supports an ambient temperature range from -55°C to +125°C. Propagation delay times are specified as 350 ns at 5 V, 175 ns at 10 V, and 120 ns at 15 V. Quiescent current is typically 6 µA at 15 V.

Latches Feature Summary

• Features three-state outputs with a common enable input for bus-oriented applications
• Includes double diode input protection against high static voltages or electric fields
• Capable of driving two low-power TTL loads or one low-power Schottky TTL load

Latches Applications

• Bus-oriented systems requiring tri-state control
• Digital logic circuits utilizing R-S latch functionality
• Applications compatible with low-power TTL or Schottky TTL loads

Latches Procurement Notes

Verify the specific ordering suffix to confirm package type and shipping quantity. The BDG suffix indicates a SOIC-16 tube package containing 48 units. Confirm RoHS compliance and Pb-Free status via the manufacturer's documentation. Ensure the application environment remains within the specified -55°C to +125°C operating temperature range and that supply voltages do not exceed the maximum ratings defined in the datasheet.

Latches Selection Notes

Select this component when a quad R-S latch with tri-state output capability is required. The common enable input allows multiple devices to share a bus efficiently. Verify that the drive requirements for connected loads fall within the specified output current limits. Consider the propagation delay characteristics relative to the system clock speed and supply voltage to ensure timing margins are met.

Latches Part Context

This part belongs to the MC14043B/MC14044B series of CMOS MSI Quad R-S Latches. It is constructed using MOS P-Channel and N-Channel enhancement mode devices in a single monolithic structure. The MC14044B variant specifically provides non-inverting Q outputs, distinguishing it from other latch configurations within the broader logic family.

Latches Replacement Considerations

The MC14043BDG is a functional substitute within the same series, differing primarily in output polarity. Verify pin compatibility and electrical specifications before substitution.