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
backplane waveforms with amplitudes up to 30 volts.
The HI-8020 & HI-8120 differ from the HI-8010 by
only the shift register clock and chip select gating
logic. The HI-8020 has TTL logic inputs whereas the
HI-8120 has CMOS logic inputs.
Both devices can drive up to 38 segments and have 3
possible shift register data taps to provide options to
cascade devices for larger displays. Data is clocked
into a 38 stage shift register and parallel latched
before the output translators by a Load input.
The HI-8020 & HI-8120 are available in a variety of
ceramic and plastic packaging including DIP; leaded
and leadless chip carriers; and J-lead and gull-wing
quad flat packs.
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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 (-40C to +85C) & Military (-55C
to +125C) temperature ranges
Pin for pin compatible with the Micrel
MIC8010/8011 series and the AMI S4520
series drivers
Cascadable
Military level processing available
!
CMOS compatible inputs (HI-8120 only)
PIN CONFIGURATION
(Top View)
FUNCTIONAL BLOCK DIAGRAM
BP
O s c i l l a t o r
D i v i d e r
V o l t a g e
T r a n s l a t o r
H i g h V o l t a g e
B u f f e r
3 8 S t a g e
S h i f t R e g i s t e r
3 8 B i t L a t c h
V o l t a g e
T r a n s l a t o r s
H i g h V o l t a g e
D r i v e r s
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
S14
S13
S12
S11
S9
S8
V
S10
EE
S27
S28
S29
S30
S31
S32
N/C
V
LD
SS
CS
CL
7
8
9
10
11
12
13
14
15
16
17
HI-8020J-85
&
HI-8120J-85
44 - PIN
PLASTIC
PLCC
FUNCTIONAL DESCRIPTION
Whenever a Logic "0" is applied to the Chip Select (
)
input, one bit of data is clocked into the shift register from the
serial data input (DIN) with each negative transition of the
Clock (
) input.
is internally tied to VSS on some
versions. A Logic "1" present at the Load (LD) input will
cause a parallel transfer of data from the shift register to the
data latch. If the Load (LD) input is held high while data is
clocked into the shift register, the latch will be transparent.
All four logic inputs are TTL compatible on the HI-8020 and
CMOS compatible on the HI-8120.
To display segments, a Logic "1" is stored in the appropriate
shift register bit position, and the segment output is out-of-
phase with the backplane.
The backplane output functions in 1 of 2 modes; externally
driven or self-oscillating. When the LCD input is externally
driven with the LCDOPT input open circuit (Figure 2), the
backplane output will be in-phase with LCD. Utilizing the
self-oscillating mode, inputs LCD and LCDOPT are tied
together and connected to an RC circuit (Figure 3).
A 150K
resistor with a 470pF capacitor generates an
approximate backplane frequency of 100Hz. The
LCD/LCDOPT oscillator frequency is divided by 256 to
determine the backplane output frequency.
The resistor
value (R) must be at least 30K
for proper self-oscillator
operation.
For displays having a number of segments greater than 38,
two or more of the display drivers may be cascaded together
by connecting the serial data output (DOUT) from the first
driver, to the serial data input (DIN) of the following driver,
etc.(See Figures 2 & 3). Data out (DOUT) will change state
CS
CL
CS
W
W
HI-8020/HI-8120 Series
TIMING DIAGRAM
t
CSH
t
CSS
t
DS
t
DH
t
CL
t
CDO
t
LS
t
LW
t
CSL
t
LCS
CL
INPUT
DIN
INPUT
CS
INPUT
LD
INPUT
DOUT
OUTPUT
VALID
VALID
HOLT INTEGRATED CIRCUITS
3-10
INTERNAL OSCILLATOR CIRCUIT
TO BACKPLANE
TRANSLATOR
AND DRIVER
256
C
R
LCD
OPT
LCD
Figure 1.
Q
VALID
on the rising edge of the Clock (
). Clock (
), Load (LD)
and Chip Select (
) should be tied in common with each
other, respectively, between all cascaded display drivers.
CL
CL
CS
HI-8020/HI-8120 Series
NOTE: Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only.
Functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied.
Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
Voltages referenced to VSS = 0V
VDD........................
VEE................
Supply Voltage
VDD-35V to 0V
0V to 7V
Voltage at any input, except LCD..-0.3 to VDD+0.3V
Voltage at LCD input...............VDD-35 to VDD+0.3V
DC Current any input pin...................................10 mA
Power Dissipation......................................................300 mW
Operating Temperature Range - Hi-Temp/Mil..-55 to +125C
Storage Temperature Range...........................-65 to +150C
Operating Temperature Range - Industrial........-40 to +85C
HOLT INTEGRATED CIRCUITS
3-11
DC ELECTRICAL CHARACTERISTICS
VDD = 5V, VEE = -25V, VSS = 0V, TA = Operating Temperature Range (unless otherwise specified).
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNITS
Operating Voltage
VDD
3.0
7.0
V
Supply Current
IDD
Static, No Load
200
A
IEE
Static, No Load f
=100Hz
150
A
Input Low Voltage, HI-8020 (except LCD)
VIL
0
0.8
V
Input High Voltage, HI-8020 (except LCD)
VIH
2
VDD
V
Input Low Voltage, HI-8120 (except LCD )
VIL
0
0.3 VDD
V
Input High Voltage, HI-8120 (except LCD
Input Low Voltage (LCD)
VILX
VEE
3
V
Input High Voltage (LCD)
VIHX
3.5
VDD
V
Input Current
IIN
VIN = 0 to 5V
1
A
Input Capacitance (not tested)
CI
5
pF
Segment Output Impedance
RSEG
IL = 10A
10,000
Backplane Output Impedance
RBP
IL = 10A
450
Data Out Current:
IDOH
Source Current, VOH = 4.5V
-0.6
mA
IDOL
Sink Current, VOL = 0.5V
0.6
mA
BP
TTL
TTL
CMOS
W
W
)
VIH
0.7 VDD
VDD
V
CMOS
PARAMETER
SYMBOL
VDD
MIN
TYP
MAX
UNITS
CL
Clock Period
t
5V
1200
ns
Clock Pulse Width
t
5V
520
ns
Data In - Setup
t
5V
50
ns
Data In - Hold
t
5V
400
ns
Chip Select - Setup to Clock
t
5V
200
ns
Chip Select - Hold to Clock
t
5V
450
ns
Load - Setup to Clock
t
5V
500
ns
Chip Select - Setup to Load
t
5V
300
ns
Load Pulse Width
t
5V
500
ns
Chip Select - Hold to Load
t
5V
300
ns
CW
DS
DH
CSS
CSH
LS
CSL
LW
LCS
Data Out Valid, from Clock
t
5V
800
ns
CDO
AC ELECTRICAL CHARACTERISTICS
VDD = 5V, VEE = -25V, VSS = 0V, TA = Operating Temperature Range (unless otherwise specified).
CASCADING - EXT. OSCILLATOR
HI-8020/HI-8120 Series
CASCADING - RC OSCILLATOR
DIN
HI-8020J-85
CS
LCD
CL
LD
DOUT
BP
SEGMENTS
1 - 33
DIN
HI-8020J-85
CS
LCD
CL
LD
DOUT
BP
SEGMENTS
33 - 64
DIN
HI-8020J-85
CS
LCD
CL
LD
DOUT
BP
SEGMENTS
65 - 96
BACK
PLANE
LD
CL
CS
DIN
HI-8120J-85
CS
LCD
CL
LD
DOUT
BP
SEGMENTS
1 - 32
LCD OPT
DIN
HI-8120J-85
CS
LCD
CL
LD
DOUT
BP
SEGMENTS
33 - 64
LCD OPT
DIN
HI-8120J-85
CS
LCD
CL
LD
DOUT
BP
SEGMENTS
65 - 96
LCD OPT
BACK
PLANE
470pf
150K
W
LD
CL
CS
Figure 2
Figure 3
HOLT INTEGRATED CIRCUITS
3-12
ADDITIONAL HI-8020/HI-8120 PIN CONFIGURATIONS
(See page 3-9 for 44-Pin Plastic PLCC)
S5
S4
S3
S2
S1
S38
S37
V
LCD
DIN
LD
DD
CL
S17
S18
S19
BP
DOUT 38
S20
S21
S22
S23
S24
S25
S26
7
8
9
10
11
12
13
14
15
16
17
18
42
41
40
39
38
37
36
35
34
33
32
HI-8020S-61
HI-8120S-61
HI-8020SM-62
&
HI-8120SM-62
48 - PIN
CERAMIC
LCC
S5
S4
S3
S2
S1
S38
S37
V
DIN
LD
DD
LCD/LCDOPT
CL
S17
S18
S19
BP
DOUT 38
S20
S21
S22
S23
S24
S25
S26
7
8
9
10
11
12
13
14
15
16
17
18
42
41
40
39
38
37
36
35
34
33
32
HI-8020S-63
HI-8120S-63
HI-8020SM-64
&
HI-8120SM-64
48 - PIN
CERAMIC
LCC
PIN DESCRIPTIONS
SYMBOL
FUNCTION
DESCRIPTION
VSS
POWER
0 Volts
INPUT
Logic input
Chip select
INPUT
Logic input
Clocks shift register on negative edge and DOUT pins on positive edge
LD
INPUT
Logic input
Segment outputs equal shift register data if Load is high
DIN
INPUT
Logic input
Shift register data input
LCD0
INPUT
Analog input
Display clock input and is always bonded out. Can swing from VEE to VDD
LCD0OPT
OUTPUT
Analog output
Bonded out only if an RC oscillator is required
VDD
POWER
5 Volts
VEE
POWER
O Volts to -30 Volts
DOUT
OUTPUT
Logic output
Selected pinout can provide shift register taps at positions 30, 32, 34, or 38
BP
OUTPUT
Display drive output
Low resistance drive for the backplane and swings from VDD to VEE
Segments
OUTPUT
Display drive output
High resistance drive for each segment and swings from VDD to VEE
CS
CL
HI-8020/HI-8120 Series
ORDERING INFORMATION
SEMI-CUSTOM PACKAGING
HOLT INTEGRATED CIRCUITS
3-13
The above part numbers represent some of the typical configurations of the HI-8020 & HI-8120 products. They can also be provided
with a varied number of output segments (30, 32 and 38), with either industrial or military screening and in a wide variety of packages.
Listed below are currently available packages. Please contact the Holt Sales Department for your specific requirements.
PACKAGE
NO.
DESCRIPTION
LEADS
PLASTIC DUAL-IN-LINE (PDIP)
40
48
PLASTIC QUAD FLAT PACK (PQFP)
52
PLASTIC J-LEAD CHIP CARRIER (PLCC)
44
CERAMIC DUAL-IN-LINE (CDIP)
40
48
CERAMIC LEADLESS CHIP CARRIER (LCC)
40
48
CERAMIC J-LEAD CHIP CARRIER
44
48
CERAMIC LEADED CHIP CARRIER
40
48
PART
NUMBER OF
MASTER PACKAGE
TEMPERATURE
BURN
LEAD
NUMBER
SEGMENTS
/SLAVE DESCRIPTION
RANGE
FLOW
IN
FINISH
TTL Input Logic
HI-8020J-85
32
BOTH
44 PIN PLASTIC J LEAD
-40C TO +85C
I
NO
SOLDER
HI-8020S-61
38
MASTER 48 PIN CERAMIC LEADLESS CHIP CARRIER
-40C TO +85C
I
NO
GOLD
HI-8020SM-62
38
MASTER 48 PIN CERAMIC LEADLESS CHIP CARRIER -55C TO +125C
M
YES
SOLDER
HI-8020S-63
38
SLAVE
48 PIN CERAMIC LEADLESS CHIP CARRIER
-40C TO +85C
I
NO
GOLD
HI-8020SM-64
38
SLAVE
48 PIN CERAMIC LEADLESS CHIP CARRIER -55C TO +125C
M
YES
SOLDER
CMOS Input Logic
HI-8120J-85
32
BOTH
44 PIN PLASTIC J LEAD
-40C TO +85C
I
NO
SOLDER
HI-8120S-61
38
MASTER 48 PIN CERAMIC LEADLESS CHIP CARRIER
-40C TO +85C
I
NO
GOLD
HI-8120SM-62
38
MASTER 48 PIN CERAMIC LEADLESS CHIP CARRIER -55C TO +125C
M
YES
SOLDER
HI-8120S-63
38
SLAVE
48 PIN CERAMIC LEADLESS CHIP CARRIER
-40C TO +85C
I
NO
GOLD
HI-8120SM-64
38
SLAVE
48 PIN CERAMIC LEADLESS CHIP CARRIER -55C TO +125C
M
YES
SOLDER
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