CD4099BMG4

Latches Overview

The CD4099BMG4 is a CMOS 8-bit addressable latch manufactured by Texas Instruments. It operates within a supply voltage range of 3 V to 18 V and supports a maximum static current of 80 nA. The device features a propagation delay of 400 ns at 5 V, 150 ns at 10 V, and 100 ns at 15 V. It provides a low-level output current of 32 mA and a high-level output current of -4.2 mA. The component functions as a single circuit with non-inverting polarity and is housed in a 16-pin SOIC package. It is rated for operation between -55 °C and +125 °C.

Latches Feature Summary

• Serial input parallel output storage register architecture
• Addressable data entry via A0, A1, and A2 inputs
• Continuous read capability independent of write disable state
• Demultiplexer functionality when reset is active

Latches Applications

• Multi-line decoders
• A/D converters
• Parallel output storage registers

Latches Procurement Notes

Verify the specific suffix 'MG4' against official Texas Instruments documentation to confirm RoHS compliance and lead-free status. Ensure the SOIC-16 package dimensions match design constraints. Confirm that the 'B' series designation aligns with required noise margin specifications for the target operating voltage.

Latches Selection Notes

Select this component for applications requiring serial-to-parallel conversion with individual bit addressing. The wide supply voltage range allows flexibility in system power design. Consider the propagation delay variations across different voltage levels when designing timing-critical circuits. The low static current makes it suitable for power-sensitive CMOS logic systems.

Latches Part Context

This part belongs to the CD4099B family of 8-bit addressable latches from Texas Instruments. It is designed to function as a storage register where data is loaded into a specific bit position based on address inputs. The device meets JEDEC tentative standard No. 13B for 'B' Series CMOS devices, ensuring compatibility with standard digital logic interfaces.

Latches Replacement Considerations

CD4099BE

Latches FAQ

How does the CD4099BMG4 function as a demultiplexer?

When the RESET input is high and WRITE DISABLE is low, the addressed bit's output follows the data input while unaddressed bits remain at logic 0.

Can outputs be read while writing to the latch?

Yes, all 8 outputs can be continuously read independent of the WRITE DISABLE and address inputs.