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V6123 Datasheet

  • V6123

  • Digitally Programmable 2, 4 and 8 Mux LCD Driver

  • 19頁

  • ETC

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EM MICROELCTRONIC-MARIN SA
V6123
Digitally Programmable 2, 4 and 8 Mux LCD Driver
Features
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Typical Operating Conditions
Very simple 1-bit interface (see Fig. 1)
V6123 mux mode 2 with 2 rows and 58 columns
V6123 mux mode 4 with 4 rows and 56 columns
V6123 mux mode 8 with 8 rows and 52 columns
Very simple 1-bit interface, reduced to its simplest
form
Frame frequency on chip by internal RC oscillator
Voltage bias and mux signal generation on chip
1 display RAM addressable as 8 x 60 bit words
Column driver only mode to have 60 column outputs
No busy states
No external components needed
Blank function for LCD blanking
Bit mapped
Wide V
DD
voltage supply range, 2 to 6 V
Wide V
LCD
voltage supply range, 2 to 8.5 V
-40 to + 85 擄C temperature range
Fig. 1
Description
The V6123 is a low multiplex LCD driver. The 2, 4 and 8
way multiplex is digitally programmable by the command
byte. The display refresh is handled on chip by an internal
RC oscillator via 1 selectable 8 x 60 RAM which holds the
LCD content driven by the driver. LCD pixels (or seg-
ments) are addressed on a one to one basis with the 8 x
60 bit RAM (a set bit corresponds to an activated LCD
pixel).
The V6123 has a very low dynamic current consumption,
typically 175 碌A(chǔ) at V
DD
= 5 V, V
LCD
= 7 V, making it particu-
larly attractive for portable and battery powered products.
The wide operating range on supply voltages and tem -
perature offers much application flexibility. The LCD bias
generation and frame frequency are generated on chip.
The clock signal can be used to shift and to latch the data
into the RAM.
Pad Assignment
Applications
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Automotive displays
Telephones
Pagers
Portable, battery operated products
Large displays (public information panels, etc.)
Balances and scales
Utility meters
Fig. 2
1

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