LC79431KNE-E

Display Drivers Overview

The LC79431KNE-E is a CMOS LSI dot-matrix LCD common driver manufactured by onsemi. It integrates an 80-bit bidirectional shift register and a 4-level LCD driver circuit within a 100-pin QFP package. The device supports display duty selections ranging from 1/64 to 1/256 and allows for bit expansion via cascade connection input/output pins. It operates with a logic supply voltage (VDD) of 2.7 to 5.5 V and an LCD section supply voltage (VDD-VEE) of 12 to 32 V across a temperature range of -20°C to +85°C.

Display Drivers Feature Summary

• Integrates an 80-bit bidirectional shift register and a 4-level LCD driver circuit
• Supports display duty selection ranging from 1/64 to 1/256
• Enables bit number expansion through cascade connection input/output pins
• Operates with externally supplied bias voltage

Display Drivers Applications

• Dot-matrix LCD panel driving
• Wide-screen LCD systems when used with segment drivers
• General electronics equipment requiring LCD common drive

Display Drivers Procurement Notes

Verify the manufacturer origin carefully, as the LC79431KNE-E designation originates from Sanyo Semiconductor, which was acquired by onsemi. Confirm that the specific suffix '-E' corresponds to the exact pinout and electrical specifications required for your design, as legacy parts may have variations in documentation or sourcing channels compared to current onsemi portfolios.

Display Drivers Selection Notes

Select this component for applications requiring a dedicated common driver for dot-matrix displays with up to 80 bits. Ensure the system design accommodates the required external bias voltage generation for the LCD section, as the IC does not generate high voltages internally. Verify compatibility with the intended segment driver, such as the LC79401KNE, for complete display control.

Display Drivers Part Context

This part belongs to the LC79431 series of large-scale integration dot-matrix LCD common drivers. It is designed to work in conjunction with segment drivers to manage complex display panels. The technology utilizes a CMOS process to provide efficient operation within specified voltage and temperature limits for standard electronic applications.

Display Drivers Replacement Considerations

Direct replacements include the LC79431KNE. Verify pin compatibility and electrical characteristics before substitution, as sourcing may vary between original Sanyo stock and onsemi inventory.