NJU3718L

Serializers, Deserializers Overview

The NJU3718L is a 20-bit serial-to-parallel converter designed for MPU output port expansion. It utilizes CMOS technology and operates within a supply voltage range of 4.5V to 5.5V, with a typical operating voltage of 5V. The device supports a maximum operating frequency of 5MHz or higher. Key electrical characteristics include a hysteresis input of 0.5V typ, an output current capability of 25mA per pin, and propagation delays of up to 100ns from clock to parallel outputs. It features a serial data output (SO) terminal for cascading with other SIPO ICs like the NJU3711.

Serializers, Deserializers Feature Summary

• 20-bit serial-in parallel-out shift register with latch functionality
• Hysteresis input circuitry providing wide noise margin
• High drive-ability output buffers capable of direct LED driving
• Serial data output terminal enables cascade connection for expanded parallel conversion

Serializers, Deserializers Applications

• MPU output port expander
• LED driver circuits
• Motor driver interfaces
• Cascaded serial-to-parallel conversion systems

Serializers, Deserializers Procurement Notes

Verify the specific package variant, as the NJU3718 series includes SDIP28, SOP28, and SDMP30 options. Confirm that the L suffix corresponds to the desired physical footprint before ordering. Ensure compatibility with the system's voltage levels and current requirements, particularly regarding the 25mA per-pin output limit and total power dissipation constraints.

Serializers, Deserializers Selection Notes

Select this component when a 20-bit expansion is required for microcontroller interfaces. Consider the 5MHz maximum frequency for high-speed data transmission needs. Evaluate the need for cascade capability via the SO terminal if more than 20 parallel outputs are necessary. Ensure the application environment stays within the -25°C to +85°C operating temperature range.

Serializers, Deserializers Part Context

The NJU3718 belongs to a family of 20-bit serial-to-parallel converters manufactured by Nisshinbo Micro Devices. It is part of the NJU3718 series, which shares core functional specifications but differs in package outlines such as SDIP28, SOP28, and SDMP30. This component serves as a logic IC for expanding digital output ports in embedded systems.

Serializers, Deserializers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify pinout compatibility and electrical characteristics carefully if considering alternative components from other manufacturers.