Ordering number : ENN7142
CMOS IC
LC75816E, 75816W
1/8 to 1/10 Duty Dot Matrix LCD Display Controllers/Drivers
with Key Input Function
Overview
The LC75816E and LC75816W are 1/8 to 1/10 duty dot
matrix LCD display controllers/drivers that support the
display of characters, numbers, and symbols. In addition to
generating dot matrix LCD drive signals based on data
transferred serially from a microcontroller, the LC75816E
and LC75816W also provide on-chip character display ROM
and RAM to allow display systems to be implemented easily.
These products also provide up to 2 general-purpose output
ports and incorporate a key scan circuit that accepts input
from up to 30 keys to reduce printed circuit board wiring.
Features
• Key input function for up to 30 keys (A key scan is
performed only when a key is pressed.)
• Controls and drives a 5
×
7, 5
×
8, or 5
×
9 dot matrix LCD.
• Supports accessory display segment drive (up to 65
segments)
• Display technique: 1/8 duty 1/4 bias drive (5
×
7 dots)
1/9 duty 1/4 bias drive (5
×
8 dots)
1/10 duty 1/4 bias drive (5
×
9 dots)
• Display digits: 13 digits
×
1 line (5
×
7 dots)
12 digits
×
1 line (5
×
8 dots, 5
×
9 dots)
• Display control memory
CGROM: 240 characters (5
×
7, 5
×
8, or 5
×
9 dots)
CGRAM: 16 characters (5
×
7, 5
×
8, or 5
×
9 dots)
ADRAM: 13
×
5 bits
DCRAM: 52
×
8 bits
• Instruction function
Display on/off control
Display shift function
• Sleep mode can be used to reduce current drain.
• CCB is a trademark of SANYO ELECTRIC CO., LTD.
• Built-in display contrast adjustment circuit
• Switching between the key scan output port and general-
purpose output port functions can be controlled by
instructions.
• The frame frequency of the common and segment output
waveforms can be controlled by instructions.
• Serial data I/O supports CCB format communication
with the system controller.
• Independent LCD driver block power supply VLCD
• A voltage detection type reset circuit is provided to
initialize the IC and prevent incorrect display.
• The INH pin is provided. This pin turns off the display,
disables key scanning, and forces the general-purpose
output ports to the low level.
• RC oscillator circuit
• CCB is SANYO’s original bus format and all the bus
addresses are controlled by SANYO.
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
21202TN (OT) No. 7142-1/43
LC75816E, 75816W
Specifications
Absolute Maximum Ratings
at Ta = 25°C, V
SS
= 0 V
Parameter
Maximum supply voltage
Symbol
V
DD
max
V
LCD
max
V
IN
1
Input voltage
V
IN
2
V
IN
3
V
OUT
1
Output voltage
V
OUT
2
V
OUT
3
I
OUT
1
Output current
I
OUT
2
I
OUT
3
I
OUT
4
Allowable power dissipation
Operating temperature
Storage temperature
Pd max
Topr
Tstg
V
DD
V
LCD
CE, CL, DI, INH
OSCI, KI1 to KI5, TEST
V
LCD
1, V
LCD
2, V
LCD
3, V
LCD
4
DO
OSCO, KS1 to KS6, P1, P2
V
LCD
0, S1 to S65, COM1 to COM10
S1 to S65
COM1 to COM10
KS1 to KS6
P1, P2
Ta = 85°C
Conditions
Ratings
–0.3 to +7.0
–0.3 to +11.0
–0.3 to +7.0
–0.3 to V
DD
+ 0.3
–0.3 to V
LCD
+ 0.3
–0.3 to +7.0
–0.3 to V
DD
+ 0.3
–0.3 to V
LCD
+ 0.3
300
3
1
5
200
–40 to +85
–55 to +125
mW
°C
°C
mA
µA
V
V
Unit
V
Allowable Operating Ranges
at Ta = –40 to +85°C, V
SS
= 0 V
Parameter
Symbol
V
DD
Supply voltage
V
LCD
Output voltage
V
LCD
0
V
LCD
1
Input voltage
V
LCD
2
V
LCD
3
V
LCD
4
V
IH
1
Input high level voltage
V
IH
2
V
IH
3
Input low level voltage
Recommended external resistance
Recommended external capacitance
Guaranteed oscillation range
Data setup time
Data hold time
CE wait time
CE setup time
CE hold time
High level clock pulse width
Low level clock pulse width
DO output delay time
DO rise time
V
IL
1
V
IL
2
R
OSC
C
OSC
f
OSC
t
ds
t
dh
t
cp
t
cs
t
ch
tøH
tøL
t
dc
t
dr
V
DD
V
LCD
: When the display contrast adjustment circuit is used.
V
LCD
: When the display contrast adjustment circuit is not used.
V
LCD
0
V
LCD
1
V
LCD
2
V
LCD
3
V
LCD
4
CE, CL, DI, INH
OSCI
KI1 to KI5
CE, CL, DI, INH, KI1 to KI5
OSCI
OSCI, OSCO
OSCI, OSCO
OSC
CL, DI: Figure 2
CL, DI: Figure 2
CE, CL: Figure 2
CE, CL: Figure 2
CE, CL: Figure 2
CL: Figure 2
CL: Figure 2
DO, R
PU
= 4.7kΩ, C
L
=
10pF*
1
:
Figure 2
DO, R
PU
= 4.7kΩ, C
L
= 10pF*
1
: Figure 2
150
160
160
160
160
160
160
160
1.5
1.5
0
0.8 V
DD
0.7 V
DD
0.6 V
DD
0
0
33
220
300
600
Conditions
Ratings
min
4.5
7.0
4.5
V
LCD
4+4.5
3/4 (V
LCD
0
–
V
LCD
4)
2/4 (V
LCD
0
–
V
LCD
4)
1/4 (V
LCD
0
–
V
LCD
4)
typ
max
6.0
10.0
10.0
V
LCD
V
LCD
0
V
LCD
0
V
LCD
0
1.5
6.0
V
DD
V
DD
0.2 V
DD
0.3 V
DD
V
kΩ
pF
kHz
ns
ns
ns
ns
ns
ns
ns
µs
µs
V
V
V
V
Unit
Note:
*1.
Since the DO pin is an open-drain output, these times depend on the values of the pull-up resistor R
PU
and the load capacitance C
L
.
No. 7142-4/43
LC75816E, 75816W
Electrical Characteristics
for the Allowable Operating Ranges
Parameter
Hysteresis
Power-down detection voltage
Input high level current
Input low level current
Input floating voltage
Pull-down resistance
Output off leakage current
Symbol
V
H
V
DET
I
IH
I
IL
V
IF
R
PD
I
OFFH
V
OH
1
V
OH
2
Output high level voltage
V
OH
3
V
OH
4
V
OH
5
V
OL
1
V
OL
2
Output low level voltage
V
OL
3
V
OL
4
V
OL
5
V
OL
6
V
MID
1
Output middle level voltage*
2
V
MID
2
V
MID
3
Oscillator frequency
f
OSC
I
DD
1
I
DD
2
I
LCD
1
Current drain
I
LCD
2
I
LCD
3
CE, CL, DI, INH, OSCI: V
I
= 6.0 V
CE, CL, DI, INH, OSCI: V
I
= 0 V
KI1 to KI5
KI1 to KI5: V
DD
= 5.0 V
DO: V
O
= 6.0 V
S1 to S65: I
O
= –20 µA
COM1 to COM10: I
O
= –100 µA
KS1 to KS6: I
O
= –500 µA
P1, P2: I
O
= –1 mA
OSCO: I
O
= –500 µA
S1 to S65: I
O
= 20 µA
COM1 to COM10: I
O
= 100 µA
KS1 to KS6: I
O
= 25 µA
P1, P2: I
O
= 1 mA
OSCO: I
O
= 500 µA
DO: I
O
= 1 mA
S1 to S65: I
O
= ±20 µA
COM1 to COM10: I
O
= ±100 µA
COM1 to COM10: I
O
= ±100 µA
OSCI, OSCO: R
OSC
= 33 kΩ, C
OSC
= 220 pF
V
DD
: sleep mode
V
DD
: V
DD
= 6.0 V, output open, f
OSC
= 300 kHz
V
LCD
: sleep mode
V
LCD
: V
LCD
= 10.0 V, output open, f
OSC
= 300 kHz
When the display contrast adjustment circuit is used.
V
LCD
: V
LCD
= 10.0 V, output open, f
OSC
= 300 kHz
When the display contrast adjustment circuit is not used.
450
500
2/4 (V
LCD
0 – V
LCD
4) – 0.6
3/4 (V
LCD
0 – V
LCD
4) – 0.6
1/4 (V
LCD
0 – V
LCD
4) – 0.6
Conditions
CE, CL, DI, INH, KI1 to KI5
Ratings
min
typ
0.1 V
DD
2.5
3.0
3.5
5.0
–5.0
0.05 V
DD
50
100
250
6.0
V
LCD
0 – 0.6
V
LCD
0 – 0.6
V
DD
– 1.0 V
DD
– 0.5
V
DD
– 1.0
V
DD
– 1.0
V
LCD
4 + 0.6
V
LCD
4 + 0.6
0.2
0.5
1.5
1.0
1.0
0.1
0.5
2/4 (V
LCD
0 – V
LCD
4) + 0.6
3/4 (V
LCD
0 – V
LCD
4) + 0.6
1/4 (V
LCD
0 – V
LCD
4) + 0.6
max
Unit
V
V
µA
µA
V
kΩ
µA
V
DD
– 0.2
V
V
V
210
300
390
100
1000
5
900
kHz
µA
200
400
Note:
*2.
Excluding the bias voltage generation divider resistor built into the V
LCD
0, V
LCD
1, V
LCD
2, V
LCD
3, and V
LCD
4. (See Figure 1.)
VLCD
CONTRAST
ADJUSTER
VLCD0
VLCD1
VLCD2
VLCD3
VLCD4
Excluding these resistors
To the common and segment drivers
Figure 1
No. 7142-5/43
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