109
HD66100F
(LCD Driver with 80-Channel Outputs)
Description
The HD66100F description segment driver with 80 LCD drive circuits is the improved version of the no
longer current HD44100H LCD driver with 40 circuits.
It is composed of a shift register, an 80-bit latch circuit, and 80 LCD drive circuits. Its interface is
compatible with the HD44100H. It reduces the number of LSI's and lowers the cost of an LCD module.
Features
LCD driver with serial/parallel converting function
Interface compatible with the HD44100H; connectable with HD43160AH, HD61830, HD61830B,
LCD-II (HD44780), LCD-III (HD44790)
Internal output circuits for LCD drive: 80
Internal serial/parallel converting circuits
80-bit bidirectional shift register
80-bit latch circuit
Power supply
Internal logic circuit: +5V 10%
LCD drive circuit: 3.0V to 6.0V
CMOS process
HD66100F
110
Comparison with HD44100H
Table 1 shows the main differences between HD66100F and HD44100H.
Table 1
Difference between Products HD66100F and HD44100H
HD66100F
HD44100H
LCD drive outputs
80
1 channel
20
2 channels
Supply voltage for LCD drive circuits
3 to 6V
4.5 to 11V
Multiplexing duty ratio
Static to 1/16 duty
Static to 1/32 duty
Package
100-pin plastic QFP
60-pin plastic QFP
Ordering Information
Type No.
Package
HD66100F
100-pin plastic QFP (FP-100)
HD66100FH
100-pin plastic QFP (FP-100B)
HD66100D
Chip
HD66100F
113
Pin Description
V
CC
, GND, V
EE
: V
CC
supplies power to the internal logic circuit. GND is the logic and drive ground. V
EE
supplies power to the LCD drive circuit.
V1, V2, V3, and V4: V1 to V4 supply power for driving an LCD (Figure 2).
CL1: HD66100F latches data at the negative edge of CL1.
CL2: HD66100F receives shift data at the negative edge of CL2.
M: Changes LCD drive outputs to AC.
DI: Inputs data to the shift register.
DO: Output data from the shift register.
SHL: Selects a shift direction of serial data. When the serial data is input in order of D1, D2, ..., D79,
D80, the relation between the data and the output Y is shown in Table 3.
Y1Y80: Each Y outputs one of the four voltage levels--V1, V2, V3, or V4--according to the
combination of M and display data (Figure 2).
NC: Do not connect any wire to these terminals.
Table 2
Pin Function
Symbol
Pin No.
Pin Name
I/O
V
CC
46
V
CC
--
GND
36
Ground
--
V
EE
31
V
EE
--
V1
32
V1
--
V2
33
V2
--
V3
34
V3
--
V4
35
V4
--
CL1
37
Clock 1
I
CL2
40
Clock 2
I
M
44
M
I
DI
41
Data in
I
DO
42
Data out
O
SHL
39
Shift left
I
Y1Y80
130, 51100
Y1Y80
O
NC
38, 43, 45, 4750
No connection
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