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LC75857E Folha de dados(PDF) 1 Page - ON Semiconductor

Nome de Peças LC75857E
Descrição Electrónicos  Duty LCD Driver with Key Input Function
Download  39 Pages
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Fabricante Electrônico  ONSEMI [ON Semiconductor]
Página de início  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

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92504TN (OT) No.7980-1/39
http://onsemi.com
Semiconductor Components Industries, LLC, 2013
July, 2013
LC75857E
LC75857W
Overview
The LC75857E and LC75857W are 1/3 duty and 1/4 duty LCD display drivers that can directly drive up to 164
segments and can control up to four general-purpose output ports. These products also incorporate a key scan circuit
that accepts input from up to 30 keys to reduce printed circuit board wiring.
Features
 Key input function for up to 30 keys (A key scan is performed only when a key is pressed.)
 1/3 duty and 1/4 duty drive schemes can be controlled from serial data.
 1/2 bias and 1/3 bias drive schemes can be controlled from serial data.
 Capable of driving up to 126 segments using 1/3 duty and up to 164 segments using 1/4 duty.
 Sleep mode and all segments off functions that are controlled from serial data.
 Switching between key scan output and segment output can be controlled from the serial data.
 The key scan operation enabled/disabled state can be controlled from the serial data.
 Switching between segment output port and general-purpose output port can be controlled from serial data.
 The common and segment output waveform frame frequency can be controlled from the serial data.
 Switching between RC oscillator mode and external clock mode can be controlled from the serial data.
 Serial data I/O supports CCB format communication with the system controller.
 Direct display of display data without the use of a decoder provides high generality.
 Independent VLCD for the LCD driver block.
(When the logic block supply voltage VDD is in the range 3.6 to 6.0 V, VLCD can be set to a voltage in the range 0.75
VDD to 6.0 V, and when VDD is in the range 2.7 to 3.6 V, VLCD can be set to a voltage in the range 2.7 to 6.0 V.)
 Provision of an on-chip voltage-detection type reset circuit prevents incorrect displays.
CMOS LSI
1/3, 1/4 Duty LCD Driver
with Key Input Function
Ordering number : E*N7980
CCB is a registered trademark of Semiconductor Components Industries, LLC.
CCB is ON Semiconductor® ’s original format. All addresses are managed
by ON Semiconductor® for this format.
Advance Information
This document contains information on a new product. Specifications and information
herein are subject to change without notice.


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