BU97550KV-ME2 Drivers & Interfaces by Rohm

Low Duty LCD Segment Drivers for Automotive applications


BU97550KV-M is a 1/8, 1/7, 1/5, 1/4, 1/3duty or Static general-purpose LCD driver that can be used for automotive applications and can drive up to 528 LCD Segments. This product can support VA LCD displays, which has better optical performance with higher LCD voltage driving and higher frame frequency driving. It can control up to 9 general-purpose outputs / PWM output ports for LED backlighting and LED button illumination realizing less flicker by various frequency setting function. It can also support a key scan function that detects a maximum of 30 key inputs to reduce PCB wiring and to minimize microcontroller size and cost. It can support LCD contrast adjustment by its EVR function and TTL compatible input interface is also available, these are well-suited for wide-voltage range of MCUs.

Where to Buy

Prices starting from US$1.88

Distributor Stock
Logo for Farnell
Farnell
from US$2.03
No stock
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Logo for Avnet Asia
Avnet Asia
from US$2.89
5,000
in stock
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Logo for Chip One Stop
Chip One Stop
from US$2.62
1,000
in stock
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Logo for Newark Electronics
Newark Electronics
from US$2.52
-
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Logo for Avnet America
Avnet America
from US$1.88
-
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Logo for element14
element14
from US$2.14
-
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Features

1/8, 1/7, 1/5, 1/4, 1/3duty or Static setting selectable 1/8duty driving: Max 528 segments 1/7duty driving: Max 469 segments 1/5duty driving: Max 345 segments 1/4duty driving: Max 280 segments 1/3duty driving: Max 210 segments Static driving: Max 70 segments
1/4, 1/3 or 1/2 bias setting selectable
Support wide range of operation voltage from 2.7V to 6.0V, which can support TN LCD and VA LCD display.
Integrated LCD voltage driving circuit
Integrated oscillation circuit for LCD frame frequency
Line or Frame inversion driving selectable
Integrated 9ch general purpose outputs/ PWM outputs (SEG selectable)
Support 256 step PWM function to realize backlight/ button LED illumination
Support LCD frame frequency from 49Hz to 391Hz, total 16setting
Support PWM frequency from 146Hz to 2.34KHz, total 16setting
Support 3 wire serial interface + KEYOUT
Support TTL level input to connect 3.3V MCU directly
Support Max 30 key input detection (SEG selectable)
Integrated EVR function to adjust LCD contrast
Integrated voltage detected type power on reset circuit
No external components required
Low power consumption design
Qualified AEC-Q100 Grade3

Specifications

Grade Automotive
Segment Element 528
Duty 1/8, 1/7, 1/5, 1/4, 1/3, Static
Bias 1/4, 1/3, 1/2
Elements of MUX 1:1 70
Elements of MUX 1:3 210
Elements of MUX 1:4 280
Elements of MUX 1:5 345
Elements of MUX 1:8 528
Interface [line serial] 3wire+KEYOUT
Interface Voltage (Min.)[V] 2.7
Interface Voltage (Max.)[V] 6
Power Supply for LCD (Min.) [V] 2.7
Power Supply for LCD (Max.) [V] 6
Max GPO [port] 9
Max KEYSCAN [Key] 30
TTL input Support Yes
LCD Driving Waveform Line/Frame
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
Package Size [mm] 14x14 (t=1.6)
Common Standard AEC-Q100 (Automotive Grade)

Alternative Descriptions

Multi-Function LCD Segment Driver 66segx8COM 2.7V to 6.0V Supply Voltage 3-Wire Serial Interface 80-Pin VQFP Emboss T/R | Avnet Asia
Lcd Segment Driver, Aec-Q100, Vqfp-80 | Newark Electronics
LCD SEGMENT DRIVER, AEC-Q100, VQFP-80 | element14


Frequently Asked Questions

Where can I find additional details, specifications and documents for a BU97550KV-ME2?

Additional datasheets, footprints and schematics for BU97550KV-ME2 are listed on our Part Details page. You can also find images and similar parts to BU97550KV-ME2 on this page.

What pricing and inventory information can I view?

Distributor pricing and stock information is available for BU97550KV-ME2 on our Product Comparison page. Access via the 'View Pricing & Stock' button to view BU97550KV-ME2 price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does BU97550KV-ME2 fall under?

The BU97550KV-ME2 is listed under Semiconductors - ICs > Drivers & Interfaces > Display Drivers.

Can I view similar or alternative parts?

You can view similar parts to BU97550KV-ME2 when available in the Display Drivers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the BU97550KV-ME2 you can contact the distributor directly for product support, shipping queries etc.

Is the BU97550KV-ME2 RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by ROHM Semiconductor.

Which authorised distributors for BU97550KV-ME2 have stock available?

Authorised distributors including Avnet Asia, Chip One Stop, Newark Electronics, Avnet America and element14 have stock available or on a lead time for BU97550KV-ME2.

How do I check stock and lead times for all distributors?

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