
HI-8020/HI-8120
The HI-8020 & HI-8120 high voltage display drivers
are functional replacements for the AMI S5420 and
Micrel MIC8013/8014 series. These CMOS prod-
ucts are designed to drive liquid crystal displays by
converting 5 volt serial data to parallel segment and
backplanewaveformswithamplitudesupto30volts.
The HI-8020 & HI-8120 differ from the HI-8010 by
only the shift register clock and chip select gating
logic. TheHI-8020hasTTLlogicinputswhereasthe
HI-8120hasCMOSlogicinputs.
Bothdevicescandriveupto38segmentsandhave3
possible shift register data taps to provide options to
cascade devices for larger displays. Data isclocked
into a 38 stage shift register and parallel latched
beforetheoutputtranslatorsbyaLoadinput.
The HI-8020 & HI-8120 are available in a variety of
ceramic and plasticpackaging including DIP; leaded
and leadless chip carriers; and J-lead and gull-wing
quadflatpacks.
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Dichroic Liquid Crystal Displays
Standard Liquid Crystal Displays
Vacuum Fluorescent Displays
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5 volt input translated to 30 volts or less
Pin-out adaptable to drive 30, 32 or 38
LCD segments
RC oscillator or high voltage (BP) clock input
TTL compatible inputs (HI-8020 only)
Low power consumption
Industrial (-40°C to +85°C) & Military (-55°C
to +125°C) temperature ranges
Pin for pin compatible with the Micrel
MIC8010/8011 series and the AMI S4520
series drivers
Cascadable
Military level processing available
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CMOS compatible inputs (HI-8120 only)
PIN CONFIGURATION
(Top View)
FUNCTIONAL BLOCK DIAGRAM
BP
Oscillator
Divider
Voltage
Translator
High Voltage
Buffer
38 Stage
Shift Register
38 Bit Latch
Voltage
Translators
High Voltage
Drivers
SEGMENTS
DATA IN
CLK
DOUT 38
DOUT 32
DOUT 30
GENERAL DESCRIPTION
DIN
CL
CS
LD
LCD
LCD OPT
(See page 3-6 for additional package pin configurations)
FEATURES
January 2001
HOLT INTEGRATED CIRCUITS
3-9
01/01
(DS8020 Rev. B)
39
38
37
36
35
34
33
32
31
30
29
S17
S16
S15
V
EE
S14
S13
S12
S11
S10
S9
S8
S27
S28
S29
S30
S31
S32
N/C
V
SS
CS
CL
LD
7
8
9
10
11
12
13
14
15
16
17
HI-8020J-85
&
HI-8120J-85
44 - PIN
PLASTIC
PLCC