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V61188TAB Datasheet

  • V61188TAB

  • 2, 4 and 8 Multiplex LCD Driver

  • 14頁

  • ETC

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EM MICROELECTRONIC-MARIN SA
V6118
2, 4 and 8 Multiplex LCD Driver
Features
n
V 6118 2 is 2 way multiplex with 2 rows and 38 columns
n
V 6118 4 is 4 way multiplex with 4 rows and 36 columns
n
V 6118 8 is 8 way multiplex with 8 rows and 32 columns
n
Low dynamic current, 150
碌
A max.
o
n
Low standby current, 1
碌
A max. at 25 C
n
Voltage bias and mux signal generation on chip
n
Display refresh on chip, 40 x 8 RAM for display storage
n
Display RAM addressable as 8, 40 bit words
n
Column driver only mode to have 40 column outputs
n
Crossfree cascadable for large LCD applications
n
Separate logic and LCD supply voltage pins
n
Wide power supply range, V
DD
: 2 to 6 V, V
LCD
: 2 to 8 V
n
BLANK function for LCD blanking on power up etc.
n
Voltage bias inputs for applications with large pixel sizes
n
Bit mapped
n
Serial input / output
n
Very low external component count
o
o
n
-40 C to +85 C temperature range
n
No busy states
n
LCD updating synchronized to the LCD refresh signal
n
QFP52 and TAB packages
Typical Operating Configuration
V6118 8
Description
The V 6118 is a universal low multiplex LCD driver. The Ver-
sion V 6118 2 drives two ways multiplex (two blackplanes)
LCD, the version V 6118 4, four way multiplex LCD, and the
V 6118 8, eight way multiplex LCD. The display refresh is
handled on chip via a 40 x 8 bit RAM which holds the LCD
content driven by the driver. LCD pixels (or segments) are
addressed on a one to one basis with the 40 x 8 bit RAM ( a
set bit corresponds to an activated LCD pixel). The V 6118
has very low dynamic current consumption, 150
碌
A max.,
making it particularly attractive for portable and battery
powered applications. The wide operating range on both
the logic (V
DD
) and the LCD (V
LCD
) supply voltages offers
much application flexibility. The LCD bias generation is
internal. The voltage bias levels can also be provided extern-
nally for applications having large pixels sizes. The V 6118
can be used as a column only driver for cascading in large
display applications. In the column only mode, 40 column
Outputs available to address the display. A BLANK func-
tion is provided to blank the LCD, useful at power up to hold
the display blank until the microprocessor has updated the
display RAM.
QFP52
V6118
Applications
n
Balances and scales
n
Automotive displays
n
Utility meters
n
Large displays (public information panels etc.)
n
Pagers
n
Portable, battery operated products
n
Telephones
1

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