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BU9728AKV

Description
LCD driver for segment-type LCDs
CategoryAnalog mixed-signal IC    Drivers and interfaces   
File Size74KB,10 Pages
ManufacturerROHM Semiconductor
Websitehttps://www.rohm.com/
Environmental Compliance
Download Datasheet Parametric Compare View All

BU9728AKV Overview

LCD driver for segment-type LCDs

BU9728AKV Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?conform to
MakerROHM Semiconductor
Parts packaging codeQFP
package instructionLFQFP, TQFP48,.35SQ
Contacts48
Reach Compliance Codecompli
ECCN codeEAR99
data entry modeSERIAL
display modeDOT MATRIX
Input propertiesSTANDARD
Interface integrated circuit typeLIQUID CRYSTAL DISPLAY DRIVER
JESD-30 codeS-PQFP-G48
JESD-609 codee2
length7 mm
Multiplex display functionNO
Number of base plates4-BP
Number of functions1
Number of segments36
Number of terminals48
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Output characteristicsTOTEM-POLE
Output polarityTRUE
Package body materialPLASTIC/EPOXY
encapsulated codeLFQFP
Encapsulate equivalent codeTQFP48,.35SQ
Package shapeSQUARE
Package formFLATPACK, LOW PROFILE, FINE PITCH
Peak Reflow Temperature (Celsius)260
power supply3/5 V
Certification statusNot Qualified
Maximum seat height1.6 mm
Maximum slew rate0.25 mA
Maximum supply voltage5.5 V
Minimum supply voltage2.5 V
surface mountYES
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceTIN COPPER
Terminal formGULL WING
Terminal pitch0.5 mm
Terminal locationQUAD
Maximum time at peak reflow temperature10
width7 mm
minfmax0.036 MHz
Standard ICs
LCD driver for segment-type LCDs
BU9728AKV
The BU9728AKV is a segment-type LCD system driver which can accommodate microcomputer control and a serial
interface. An internal 4-bit common output and LCD drive power supply circuit enable configuration of a display sys-
tem at low cost.
Applications car audio systems, telephones
Movie projectors,
Features
1) Serial interface. (8-bit length)
2) Display RAM: Internal, 128 bits. (up to 128 seg-
ments 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 dissi-
pation.
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 ~ + V
DD
400
– 20 ~ + 75
– 55 ~ + 125
Unit
V
V
mW
°C
°C
Symbol
V
DD
V
LCD
Pd
Topr
Tstg
over 25°C .
Reduced by 4.0mW for each increase in Ta of 1°C
Recommended operating conditions (Ta = 25°C, V
Parameter
Power supply voltage 1
Power supply voltage 2
(V
DD
- V
3
)
Oscillation frequency
SS
= 0V)
Max.
5.5
V
DD
Unit
V
V
kHz
Conditions
The following relationship should
be maintained: V
DD
V
1
V
2
V
3
R
f
= 470kΩ
V
SS
.
Symbol
V
DD
V
LCD
f
OSC
Min.
2.5
0
Typ.
36
1

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