BU9728 Datasheet - Rohm

BU9728 LCD driver for segment-type LCDs

Pin name OSC1 OSC2 V1 ~ V3 VSS VDD SCK SD 9 I CS 10 I C/D COM0 11 I 12 ~ 15 COM3 RESET SEG0 17 ~ 48 SEG31 16 O I O *Input / output equivalent circuits Pin name I / O SD SCK C/D CS I VDD IN GND Equivalent Circuit Pin name I / O SEG0 SEG31 OUT Equivalent Circuit VLCD O ~ .

BU9728 Features

* 1) Serial interface. (8-bit length) 2) Display RAM: Internal, 128 bits. (up to 128 segments can be displayed) 3) Internal power supply circuit for LCD drive. 4) Display duty: 1 / 4 5) Can be driven with low voltage and low current dissipation.

* Absolute maximum ratings (Ta = 25°C

BU9728_Rohm.pdf