LC7940N

Part points

• The LC7940N is a chip that belongs to the LC7940 series of display driver ICs produced by Sanyo. It is specifically designed to drive dot-matrix liquid crystal displays (LCDs). The chip operates on low power and offers various display functions, making it suitable for applications requiring compact and efficient LCD control.

• Features

  The LC7940N is a 32-segment liquid crystal display (LCD) driver with built-in display RAM and display data latch. It operates with a low voltage and low power consumption, and can handle up to 448 segments. It also includes a 32-step time base generator for controlling LCD driving and offers a wide operating temperature range of -20°C to +75°C.

• Pinout

  The LC7940N is a 40-pin LCD driver that provides display control for dot matrix LCD panels. It includes segments, commons, and segment blink control signals, among others.

• Manufacturer

  The manufacturer of the LC7940N is Sanyo Electric Co., Ltd. It is a Japanese company primarily involved in the manufacturing of electronics, including a wide range of consumer and industrial products.

• Application Field

  The LC7940N is a dot matrix LCD driver IC primarily used in applications such as small-sized electronic devices, including calculators, electronic watches, and portable instruments. It can drive up to 80 LCD segments and provides various features, such as multi-level display, low power consumption, and direct interface to microcontrollers.

• Package

  The LC7940N chip comes in a dual in-line package (DIP) form, which means it has two rows of pins aligned on opposite sides. The size of the package is standard for DIP chips, measuring approximately 9.9mm in length and 6.35mm in width.