Datasheet > BU91501KV-E2

BU91501KV-E2

更新时间： 2022-02-26 13:44:22

品牌	Logo	应用领域
罗姆 - ROHM		/
页数	文件大小	规格书
34页	2214K
描述
Multi- function LCD Segment Drivers

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BU91501KV-E2 数据手册

Datasheet

LCD Segment Drivers

Multi- function LCD Segment Drivers

BU91501KV-M

MAX 204 Segment(51SEGx4COM)

General Description

Key Specifications

The BU91501KV-M is 1/4 or 1/3-Duty general-purpose

LCD driver that can be used for frequency display in

electronic tuners under the control of a microcontroller.

The BU91501KV-M can drive up to 204 LCD

Segments directly and control up to 4 general-purpose

output ports and up to 30 key input detection.

■

Supply Voltage Range:

2.7V to 6.0V

LCD drive power supply Range:

Operating Temperature Range:

Max Segments:

Display Duty:

Bias:

4.5V to 6.0V

-40°C to +105°C

204 Segments

1/3, 1/4 selectable

1/2, 1/3 selectable

Interface:

3wire serial interface

Features

AEC-Q100 Qualified ^(Note)



Package

W (Typ.) x D (Typ.) x H (Max.)



Key input function for up to 30 keys (A key scan is

performed only when a key is pressed.)

Either 1/4 or 1/3 duty can be selected

1/4 duty drive：Up to 204 segments



1/3 duty drive：Up to 156 segments

Integrated RAM for display data (DDRAM)

Segment/GPO (Max 4port) output mode selectable

Support standby mode

Integrated Power-on Reset circuit

Integrated Oscillator circuit



No external component

Low power consumption design

(Note) Grade 2

VQFP64

Applications

12.00mm x 12.00mm x 1.60mm

 Car Audio, Home Electrical Appliance,

Meter Equipment etc.

Typical Application Circuit

Key Matrix

(P1)

(P2)

(General purpose ports)

(For use control of backlight)

KI1/S48

(P4)

KS1/S42

+5V

KI5/S52

KS6/S47

VDD

COM1

COM2

COM3

P1/S1

P2/S2

(Note1)

+5.5V

VLCD

P4/S4

LCD Panel

(Up to 204

Segments)

RESB

From

Controller

CSB

SCL

S40

COM4/S41

To Controller

(Note1) Insert capacitors between VDD/VLCD and VSS C≥0.1uF.

Figure 1. Typical Application Circuit

○Product structure：Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays.

www.rohm.com

TSZ02201-0P4P0D301120-1-2

8.July.2015 Rev.001

1/30

TSZ22111･14･001

12 3 4 5 6 7...34

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