MC14043BDG

Latches Overview

The MC14043BDG is a CMOS MSI Quad R-S Latch manufactured by onsemi. It features four independent latches with Set and Reset inputs, providing individual Q outputs 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. Packaged in a 16-pin SOIC (D Suffix) surface-mount format, it includes double diode input protection.

Latches Feature Summary

• Features three-state outputs with a common enable input for bus-oriented applications
• Constructed with MOS P-Channel and N-Channel enhancement mode devices
• Includes double diode input protection against high static voltages

Latches Applications

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

Latches Procurement Notes

Verify the specific ordering suffix to confirm package type and shipping quantity. The 'DG' suffix indicates a lead-free SOIC-16 rail pack, while 'R2G' denotes tape and reel packaging. Confirm RoHS compliance and AEC-Q100 qualification status if automotive grade requirements are necessary for the target application.

Latches Selection Notes

Select this component when quad R-S latch functionality with tri-state output control is required. Ensure the design accommodates the specified supply voltage limits and operating temperature range. Verify that the load capacitance and drive current requirements fall within the electrical characteristics defined in the datasheet for reliable operation.

Latches Part Context

This part belongs to the MC14043B/MC14044B family of CMOS MSI Quad R-S Latches. The MC14043B variant utilizes separate Set and Reset inputs, whereas the MC14044B uses a single data input with a clock. Both share identical pinouts and three-state buffer configurations, differing primarily in their internal truth table logic for state retention.

Latches Replacement Considerations

Compatible substitutes include the MC14043BDR2G for tape-and-reel packaging or the NLV14043BDG for automotive-grade requirements. Cross-vendor equivalents such as the CD4043B may be considered, provided pin compatibility and electrical specifications align with the system design.