BU9728AKV LCD driver for segment-type LCDs

BU9728AKV 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 ~ VLCD CO.

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, V Parameter Power supply voltage 1 Power supply voltage 2 Power dissipation Operating temperature Storage temperature SS = 0V) Limits
  – 0.3 ~ + 7.0
  – 0.3 ~ + VDD 400∗
  – 20 ~ + 75
  – 55 ~ + 125 Unit V V mW °C °C Symbol VDD VLCD Pd Topr Tstg over 25°C . ∗ Reduced by 4.0mW for each increase in Ta of 1°C
•Recomme.