HI-8050/51, HI-8150/51
February 2003
CMOS HIGH VOLTAGE DISPLAY DRIVER
APPLICATIONS
!
!
!
!
Dichroic Liquid Crystal Displays
Standard Liquid Crystal Displays
5 Volt Serial Data to Parallel High Voltage
MEMS Drivers
GENERAL DESCRIPTION
The HI-8050, HI-8051, HI-8150 and HI-8151 are CMOS
integrated circuits designed for high voltage LCD display
drive applications. The HI-8050 & HI-8051 have TTL logic
inputs whereas the HI-8150 & HI-8151 have CMOS logic
inputs. They drive up to 38 segments at voltages between
+5 and -30 volts. The optional voltage converter on the
HI-8050 & HI-8150 can be used to generate the negative
display drive voltage. All products have test inputs to
facilitate opens and shorts testing as well as automatic
blanking of the display if the +5V power is lost.
The HI-8050 and HI-8150 are designed to replace the
HI-8010 and HI-8020 devices in all 5 volt applications. They
offer significantly enhanced ESD protection along with a
considerably faster serial input data rate.
The data is serially clocked into the device on the negative
edge of the clock and latched in parallel to the segment
outputs on the high to low transition of the load input. Serial
output data changes on the positive edge of the clock
allowing the cascading of multiple drivers for larger dis-
plays.
The device layout supports all previous pinouts of the
HI-8010/HI-8020 products. In addition, new technology
and features afford new packaging options. Consult your
Holt Sales Representative to explore the possibilities.
PAD CONFIGURATION
(Top View)
N/C
DIN
LD
CL
CS
8020OPT
VSS
S36
S35
S34
S33
S32
S31
S30
S29
S28
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
(See page 6 for HI-8051 & HI-8151pin configurations)
FEATURES
!
4 MHz serial input data rate
!
38 segment outputs
!
Cascadable
!
5 Volt inputs translated to 35 Volts
!
Test pins allow hardware all "ON", all "OFF" or
alternating
!
Monitors 5 volt supply and forces all
segments to "OFF" condition if lost
!
Negative voltage converter available on-chip
!
CMOS low power
!
Military processing available
H i g h Vo l ta g e
B u ff e r
FUNCTIONAL BLOCK DIAGRAM
DIN
CL
Þ
Þ
CS
Þ
Þ
LD
N/C
S8
S9
S10
S11
S12
S13
S14
N/C
S15
S16
S17
S18
S19
N/C
N/C
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
BPIN
BPOSC
VDD
N/C
CONVOSC
CONVOUT
VEE
S37
S38
S1
S2
S3
S4
S5
S6
S7
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
HI-8050PQI
HI-8150PQI
HI-8050PQT
&
HI-8150PQT
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
S27
S26
S25
S24
S23
S22
S21
S20
DOUT38
DOUT32
DOUT30
T2
T1
N/C
BPOUT
N/C
64 Pin plastic PQFP
DATA IN
3 8 Sta g e
S h i ft R e g i s t e r
CLK
Þ
DOUT38
DOUT32
DOUT30
8020OPT
CONTROL
LOGIC
LE
Þ
BPIN
Þ
BPOSC
Þ
38 Bit Latch
Oscillator
Divider
Vo l ta g e
Tr a n s l a t o r
Vo l ta g e
Tr a n s l a t o r s
H i g h Vo l ta g e
Drivers
Þ
BPOUT
(DS8050 Rev. D)
38 SEGMENTS
HOLT INTEGRATED CIRCUITS
www.holtic.com
02/03
HOLTIC [ HOLT INTEGRATED CIRCUITS ]
