NJU3716L

Serializers, Deserializers Overview

The NJU3716L is a 16-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. The device accepts serial data synchronized with a clock frequency of 5MHz or more, shifting it through an internal register before latching the data to 16 parallel outputs. Key electrical parameters include a maximum operating frequency of 5 MHz, an output current capability of 25 mA per pin, and propagation delays ranging from 70 ns to 100 ns depending on the signal path. It features hysteresis inputs for noise immunity and supports cascade connections via a serial output terminal.

Serializers, Deserializers Feature Summary

• 16-bit serial to parallel conversion capability for expanding MPU output ports using minimal interface lines.
• High drive-ability output buffers capable of sourcing 25mA directly driving loads such as LEDs.
• Hysteresis input circuits utilizing Schmitt trigger structures to provide wide noise margins.
• Serial output terminal allows cascading with other SIPO ICs to expand parallel conversion outputs.

Serializers, Deserializers Applications

• MPU output port expansion
• Cascade connection with other serial-to-parallel converters like NJU3711
• Direct LED driving applications

Serializers, Deserializers Procurement Notes

Verify the specific package variant, as the datasheet lists SDIP24 and DMP24 outlines. Confirm the operating temperature range meets system requirements, specified as -25°C to +85°C. Ensure power supply decoupling capacitors are placed between VDD and VSS to stabilize operation. Check absolute maximum ratings to prevent damage from voltage or current overstress during integration.

Serializers, Deserializers Selection Notes

Select this component when a 16-bit parallel expansion is required from a serial MPU interface. It is suitable for systems needing direct high-current output control without external drivers. Consider the 5V nominal supply requirement and ensure the clock signal exceeds 5MHz for proper data synchronization. Verify that the total power dissipation remains within limits when multiple outputs are active simultaneously.

Serializers, Deserializers Part Context

The NJU3716 belongs to Nisshinbo Micro Devices' series of serial to parallel logic converters. It complements other devices in the lineup, such as the 8-bit NJU3711, by providing higher density parallel output expansion. The L suffix typically denotes a specific package type within the SDIP/DMP family, distinct from the M variant which may share functional specifications but differ in physical housing.

Serializers, Deserializers Replacement Considerations

The NJU3716M is a functionally equivalent alternative within the same series, differing primarily in package outline. For expanded configurations, it can be cascaded with the NJU3711. No other direct substitutes are documented in the provided source material.

Serializers, Deserializers FAQ

How does the NJU3716 handle data transmission?

Serial data is shifted into the register on the rising edge of the clock signal while STB is High. When STB goes Low, the data transfers from the shift register to the latches for parallel output.

What is the purpose of the SO terminal?

The SO terminal outputs the serial data from the internal shift register, enabling cascade connections to other SIPO ICs for further output expansion.

Can the NJU3716 drive LEDs directly?

Yes, the device features high drive-ability output buffers capable of delivering 25mA, allowing it to drive LEDs directly without additional driver components.