Ordering number : ENN6370A
31000RM (OT)/12800RM No. 6370 -1/39
Overview
The LC75808E and LC75808W are 1/8 to 1/10 duty LCD
display drivers that can directly drive up to 600 segments
and can control up to four general-purpose output ports.
These products also 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.)
1/8duty1/4bias, 1/9duty1/4bias, and 1/10duty1/4bias
drive schemes can be controlled from serial data.
1/8duty1/4bias: up to 480 segments
1/9duty1/4bias: up to 540 segments
1/10duty1/4bias: up to 600 segments
Sleep mode and all segments off functions that are
controlled from serial data.
Serial data I/O supports CCB format communication
with the system controller.
Direct display of display data without the use of a
decoder provides high generality.
Built-in display contrast adjustment circuit.
Up to 4 general-purpose output ports are included.
Independent LCD driver block power supply V
LCD
.
Provision of an on-chip voltage-detection type reset
circuit prevents incorrect displays.
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.
Package Dimensions
unit: mm
3151-QFP100E
unit: mm
3181B-SQFP100
21.6
0.8
3.0max
1.6
17.2
0.825
1
30
31
50
51
80
81
1.6
0.575
0.575
0.15
2.7
15.6
0.3
20.0
23.2
14.0
0.65
0.825
100
0.8
0.65
0.1
SANYO: QFP100E
[LC75808E]
0.2
1.0
1.0
16.0
14.0
0.5
16.0
14.0
0.5
1.0
1.0
0.145
1.4
1.6max
0.5
0.5
100
1
25
26
50
51
75
76
0.1
SANYO: SQFP100
[LC75808W]
LC75808E, 75808W
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
1/8 to 1/10 Duty LCD Display Drivers
with Key Input Function
CMOS IC
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.
CCB is a trademark of SANYO ELECTRIC CO., LTD.
CCB is SANYO's original bus format and all the bus
addresses are controlled by SANYO.
No. 6370 -3/39
LC75808E, 75808W
Parameter
Symbol
Conditions
Ratings
Unit
Maximum supply voltage
V
DD
max
V
DD
0.3 to +7.0
V
V
LCD
max
V
LCD
0.3 to +12.0
V
IN
1
CE, CL, DI, INH
0.3 to +7.0
Input voltage
V
IN
2
OSC, KI1 to KI5, TEST
0.3 to V
DD
+0.3
V
V
IN
3
V
LCD
1, V
LCD
2, V
LCD
3, V
LCD
4
0.3 to V
LCD
+0.3
V
OUT
1
DO
0.3 to +7.0
Output voltage
V
OUT
2
OSC, KS1 to KS6, P1 to P4
0.3 to V
DD
+0.3
V
V
OUT
3
V
LCD
0, S1 to S60, COM1 to COM10
0.3 to V
LCD
+0.3
I
OUT
1
S1 to S60
300
A
Output current
I
OUT
2
COM1 to COM10
3
I
OUT
3
KS1 to KS6
1
mA
I
OUT
4
P1 to P4
5
Allowable power dissipation
Pd max
Ta = 85C
200
mW
Operating temperature
Topr
40 to +85
C
Storage temperature
Tstg
55 to +125
C
Specifications
Absolute Maximum Ratings
at Ta=25C, V
SS
=0V
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
V
DD
V
DD
4.5
6.0
V
LCD
, When the display contrast adjustment
7.0
11.0
Supply voltage
V
LCD
circuit is used
V
V
LCD
, When the display contrast adjustment
4.5
11.0
circuit is not used
Output voltage
V
LCD
0
V
LCD
0
V
LCD
4 + 4.5
V
LCD
V
V
LCD
1
V
LCD
1
3/4
V
LCD
0
(V
LCD
0V
LCD
4)
V
LCD
2
V
LCD
2
2/4
V
LCD
0
Input voltage
(V
LCD
0V
LCD
4)
V
V
LCD
3
V
LCD
3
1/4
V
LCD
0
(V
LCD
0V
LCD
4)
V
LCD
4
V
LCD
4
0
1.5
Input high level voltage
V
IH
1
CE, CL, DI, INH
0.8 V
DD
6.0
V
V
IH
2
KI1 to KI5
0.6 V
DD
V
DD
Input low level voltage
V
IL
CE, CL, DI, INH, KI1 to KI5
0
0.2 V
DD
V
Recommended external resistance
R
OSC
OSC
43
k
Recommended external capacitance
C
OSC
OSC
680
pF
Guaranteed oscillation range
f
OSC
OSC
25
50
100
kHz
Data setup time
t
ds
CL, DI
:Figure 2
160
ns
Data hold time
t
dh
CL, DI
:Figure 2
160
ns
CE wait time
t
cp
CE, CL
:Figure 2
160
ns
CE setup time
t
cs
CE, CL
:Figure 2
160
ns
CE hold time
t
ch
CE, CL
:Figure 2
160
ns
High level clock pulse width
t
H
CL
:Figure 2
160
ns
Low level clock pulse width
t
L
CL
:Figure 2
160
ns
DO output delay time
t
dc
DO, R
PU
= 4.7 k
, C
L
= 10 pF
*
1
:Figure 2
1.5
s
DO rise time
t
dr
DO, R
PU
= 4.7 k
, C
L
= 10 pF
*
1
:Figure 2
1.5
s
Allowable Operating Ranges
at Ta = 40 to +85C, V
SS
=0V
Note:
*
1
.
Since DO is an open-drain output, these values depend on the resistance of the pull-up resistor R
PU
and the load capacitance C
L
.
No. 6370 -4/39
LC75808E, 75808W
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Hysteresis
V
H
CE, CL, DI, INH, KI1 to KI5
0.1 V
DD
V
Power-down detection voltage
V
DET
2.5
3.0
3.5
V
Input high level current
I
IH
CE, CL, DI, INH: V
I
= 6.0 V
5.0
A
Input low level current
I
IL
CE, CL, DI, INH: V
I
= 0 V
5.0
A
Input floating voltage
V
IF
KI1 to KI5
0.05 V
DD
V
Pull-down resistance
R
PD
KI1 to KI5: V
DD
= 5.0 V
50
100
250
k
Output off leakage current
I
OFFH
DO: VO = 6.0 V
6.0
A
V
OH
1
S1 to S60: I
O
= 20 A
V
LCD
0 0.6
Output high level voltage
V
OH
2
COM1 to COM10: I
O
= 100 A
V
LCD
0 0.6
V
V
OH
3
KS1 to KS6: I
O
= 500 A
V
DD
1.0
V
DD
0.5
V
DD
0.2
V
OH
4
P1 to P4: I
O
= 1 mA
V
DD
1.0
V
OL
1
S1 to S60: I
O
= 20 A
V
LCD
4 + 0.6
V
OL
2
COM1 to COM10: I
O
= 100 A
V
LCD
4 + 0.6
Output low level voltage
V
OL
3
KS1 to KS6: I
O
= 25 A
0.2
0.5
1.5
V
V
OL
4
P1 to P4: I
O
= 1 mA
1.0
V
OL
5
DO: I
O
= 1mA
0.1
0.5
2/4
2/4
V
MID
1
S1 to S60: I
O
= 20 A
(VLCD0 VLCD4)
(VLCD0 VLCD4)
0.6
+0.6
3/4
3/4
Output middle level voltage
*2
V
MID
2
COM1 to COM10: I
O
= 100 A
(VLCD0 VLCD4)
(VLCD0 VLCD4)
V
0.6
+0.6
1/4
1/4
V
MID
3
COM1 to COM10: I
O
= 100 A
(VLCD0 VLCD4)
(VLCD0 VLCD4)
0.6
+0.6
Oscillator frequency
fosc
OSC: R
OSC
= 43 k
, C
OSC
= 680 pF
40
50
60
kHz
I
DD
1
V
DD
:Sleep mode
100
I
DD
2
V
DD
: V
DD
= 6.0 V, outputs open,fosc = 50 kHz
250
500
I
LCD
1
V
LCD
: Sleep mode
5
V
LCD
: V
LCD
= 11.0 V
Current drain
I
LCD
2
Outputs open
500
1000
A
fosc = 50 kHz
(When the display contrast adjustment circuit is used.)
V
LCD
: V
LCD
= 11.0 V
Outputs open
I
LCD
3
fosc = 50 kHz
250
500
(When the display contrast adjustment circuit is not
used.)
Electrical Characteristics for the Allowable Operating Ranges
Note:
*
2
.
Excluding the bias voltage generation divider resistor built into V
LCD
0, V
LCD
1, V
LCD
2 , V
LCD
3, and V
LCD
4. (See Figure 1.)
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