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ML9211 Datasheet

  • ML9211

  • 56-Bit Duplex/Triplex (1/2 duty / 1/3 duty) VF Controller/Dr...

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E2C0045-19-83
隆 Semiconductor
隆 Semiconductor
ML9211
GENERAL DESCRIPTION
This version: Aug. 1999
ML9211
im
el
Pr
in
y
ar
56-Bit Duplex/Triplex (1/2 duty / 1/3 duty) VF Controller/Driver with Digital Dimming
The ML9211 is a full CMOS controller/driver for Duplex or Triplex (1/2 duty or 1/3 duty)
vacuum fluorescent display tube. It consists of a 56-segment driver multiplexed to drive up to
168 segments, and 10-bit digital dimming circuit.
ML9211 features a selection of a master mode and a slave mode, and therefore it can be used to
expand segments for the VFD driver with keyscan and A/D converter function.
ML9211 provides an interface with a microcontroller only by three signal lines: DATA IN,
CLOCK and CS.
FEATURES
鈥?Logic supply voltage (V
DD
)
: 4.5 to 5.5V
: 8 to 18V
鈥?Driver supply voltage (V
DISP
)
鈥?Duplex/Triplex (1/2 duty / 1/3 duty) selectable
DUP/TRI=1/2 duty selectable at "H" level
DUP/TRI=1/3 duty selectable at "L" level
鈥?Number of display segments
Max. 112-segment display (during 1/2 duty mode)
Max. 168-segment display (during 1/3 duty mode)
鈥?Master/Slave selectable
M/S=Master mode selectable at "H" level
M/S=Slave mode selectable at "L" level
鈥?Interface with a microcontroller
Three lines: CS, CLOCK, and DATA IN
鈥?56-segment driver outputs
: I
OH
=鈥?mA at V
OH
=V
DISP
鈥?.8V (SEG1 to 37)
(can be directly connected to VFD tube
: I
OH
=鈥?0mA at V
OH
=V
DISP
鈥?.8V (SEG38 to 56)
and require no external resistors)
: I
OL
=500mA at V
OL
=2V (SEG1 to 56)
鈥?3-grid pre-driver outputs
: I
OH
=鈥?.0mA at V
OH
=V
DISP
鈥?.8V
(require external drivers)
I
OL
=10mA at V
OL
=2V
鈥?Logic outputs
: I
OH
=鈥?00mA at V
OH
=V
DD
鈥?.8V
I
OL
=200mA at V
OL
=0.8V
鈥?Built-in digital dimming circuit (10-bit resolution)
鈥?Built-in oscillation circuit (external R and C)
鈥?Built-in Power-On-Reset circuit
鈥?Package options:
80-pin plastic QFP (QFP80-P-1420-0.80-BK)
Product name: ML9211GA
80-pin plastic QFP (QFP80-P-1414-0.65-K)
Product name: ML9211GP
1/19

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