MC74VHC259D

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The MC74VHC259D is a 8-bit addressable latch device from the MC74VHC logic family and is used in a variety of applications. The device has three active-low output enable pins, each pin controlling two of the latches, and one active-low chip enable pin. The device operates from a single 2 V to 6 V power supply.

The MC74VHC259D is designed with typical access times of 4.5 ns and is specified for operation over the full military temperature range. The latches on the MC74VHC259D are organized in two banks of four, allowing the device to be used in multiple configurations. The active-low output enable pins control two of the latches and the active-low chip enable pin controls the other two. This allows the device to be used as two banks of four latches, one bank of eight latches, or a single bank of all eight latches.

The device is typically used in applications such as memory decoding, address multiplexing, and data buses; and can be used in a variety of logic applications such as counters, dividers, and state machines. The device can be used as a decoder circuit and is suitable for memory address decoding and multiplexing applications, providing an efficient solution for less expensive and smaller logic packages. The MC74VHC259D is also used for timing needs and is capable of handling relatively fast clock cycles.

The MC74VHC259D latch works by providing two outputs (QA, QB) per latch and one select line (SLA,SLB) for controlling each output. The outputs are enabled by putting a low voltage at the select line, and the outputs are disabled by putting a high voltage at the select line. The output will remain in the same state until the voltage at the select line is changed. In addition, the MC74VHC259D latch also has enable (ENA, ENB) pins in each group of latches. When either enable pin is pulled low, all of the associated latches in that group will be disabled and the outputs will be forced to a high impedance state.

In summary, the MC74VHC259D is a versatile latch device used in many applications, including memory decoding, address multiplexing, and data buses. The device operates from a single 2 V to 6 V power supply, and offers a typical access time of 4.5 ns over the full military temperature range. The latches are organized in two banks of four, each with active-low output enable pins; and one active-low chip enable pin. The device can be used as two banks of four latches, one bank of eight latches, or a single bank of all eight latches. The device is capable of handling relatively fast clock cycles and can be used in complex logic applications.

The specific data is subject to PDF, and the above content is for reference