BU97981KV-E2

Display Drivers Overview

The BU97981KV-E2 is an LCD segment driver manufactured by Rohm Semiconductor, housed in a 64-VQFP (10x10 mm) surface-mount package. It supports up to 196 segments with a maximum clock frequency of 4 MHz. The device operates on a supply voltage range of 1.8 V to 3.6 V and features a 3-wire serial interface. Maximum power dissipation is rated at 1 W, with a maximum supply current of 130 uA. It functions within a temperature range of -30°C to +75°C.

Display Drivers Feature Summary

• Supports line/frame inversion driving modes for LCD display control
• Integrates internal oscillation circuitry for frame frequency generation
• Includes general-purpose output ports selectable as segment outputs

Display Drivers Applications

• Consumer electronic displays requiring low-power segment driving
• Industrial instrumentation panels with limited pin counts
• Portable devices utilizing 3-wire serial communication interfaces

Display Drivers Procurement Notes

Verify the specific suffix E2 against the manufacturer's latest datasheet to confirm RoHS compliance and material declarations. Ensure the ordering code matches the required tape-and-reel packaging configuration. Cross-reference the 64-VQFP footprint dimensions with your PCB library to prevent assembly errors during production.

Display Drivers Selection Notes

Select this component when a 3-wire interface is preferred over parallel connections to reduce microcontroller pin usage. It is suitable for designs requiring integrated LCD bias generation without external resistors. Consider the 1.8V minimum operating voltage for battery-powered applications where power efficiency is critical.

Display Drivers Part Context

This part belongs to the BU97981KV series of LCD drivers designed for consumer electronics. It shares functional similarities with other ROHM segment drivers but is distinct in its 196-segment capacity and specific 64-pin VQFP packaging. The series emphasizes low power consumption and simplified system design through integrated peripheral circuits.

Display Drivers Replacement Considerations

BU97981GU-ZE2 offers similar functionality in a VBGA-64 package. Verify pin compatibility and thermal requirements before substitution, as the package type differs significantly from the VQFP-64 form factor used in the original specification.