The LC75813E and LC75813T are 1/3 duty and 1/4 duty general-purpose LCD drivers that can be used for
frequency display in electronic tuners under the control of a microcontroller. The LC75813E and LC75813T can
drive an LCD with up to 344 segments directly. The LC75813E and LC75813T can also control up to 8 general-
purpose output ports. Since the LC75813E and LC75813T use separate power supply systems for the LCD drive
block and the logic block, the LCD driver block power-supply voltage can be set to any voltage in the range 2.7 to
6.0 volts, regardless of the logic block power-supply voltage.
Features
Switching between 1/3 duty and 1/4 duty drive techniques under serial data control.
Switching between 1/2 bias and 1/3 bias drive techniques under serial data control.
Up to 261 segments for 1/3 duty drive and 344 segments for 1/4 duty drive can be displayed.
Serial data input supports CCB format communication with the system controller.
Serial data control of the power-saving mode based backup function and all the segments forced off function.
Serial data control of switching between the segment output port and the general-purpose output port functions.
Serial data control of frame frequency for common and segment output waveforms.
High generality, since display data is displayed directly without decoder intervention.
Independent V
LCD
for the LCD driver block (V
LCD
can be set to any voltage in the range 2.7 to 6.0 volts, regardless
of the logic block power-supply voltage.)
The INH pin can force the display to the off state.
RC oscillator circuit
Package Dimensions
unit : mm
[ LC75813E ]
23.2
[ LC75813T ]
0.8
0.5
50
26
1
(1.0)
0.5
0.2
25
0.125
20.0
80
81
51
50
16.0
14.0
75
76
51
14.0
17.2
100
1
0.65
(0.58)
0.3
30
31
100
0.15
(2.7)
3.0max
1.2max
0.1
0.1
(1.0)
TQFP100(14X14)
QIP100E(14X20)
CCB is ON Semiconductor® ’s original format. All addresses are managed
by ON Semiconductor® for this format.
CCB is a registered trademark of Semiconductor Components Industries, LLC.
20102RM (OT) No.7159-1/26
Semiconductor Components Industries, LLC, 2013
October, 2013
14.0
16.0
LC75813E, 75813T
Specifications
Absolute Maximum Ratings
at Ta = 25C, VSS = 0V
Parameter
Maximum supply voltage
Symbol
VDD max
VLCD max
VIN1
VIN2
VIN3
VOUT1
VOUT2
IOUT1
IOUT2
IOUT3
Allowable power dissipation
Operating temperature
Storage temperature
Pd max
Topr
Tstg
VDD
VLCD
CE, CL, DI, INH
OSC
VLCD1, VLCD2
OSC
S1 to S87, COM1 to COM4, P1 to P8
S1 to S87
COM1 to COM4
P1 to P8
Ta = 85°C
Conditions
Ratings
–0.3 to +7.0
–0.3 to +7.0
–0.3 to +7.0
–0.3 to VDD +0.3
–0.3 to VLCD +0.3
–0.3 to VDD +0.3
–0.3 to VLCD +0.3
300
3
5
200
–40 to +85
–55 to +125
V
A
mA
mA
mW
C
C
V
unit
V
Input voltage
Output voltage
Output current
Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality should not be assumed,
damage may occur and reliability may be affected.
Allowable Operating Ranges
at Ta =
40
to +85C, VSS = 0V
Ratings
Parameter
Symbol
VDD
VLCD
VLCD1
VLCD2
VIH
VIL
ROSC
COSC
fOSC
tds
tdh
tcp
tcs
tch
t
H
t
L
tr
tf
tc
VDD
VLCD
VLCD1
VLCD2
CE, CL, DI, INH
CE, CL, DI, INH
OSC
OSC
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
CE, CL, DI : Figure 2
CE, CL, DI : Figure 2
INH, CE : Figure 3
10
19
160
160
160
160
160
160
160
160
160
0.8VDD
0
39
1000
38
76
Conditions
min
2.7
2.7
2/3VLCD
1/3VLCD
Supply voltage
typ
max
6.0
V
6.0
VLCD
VLCD
6.0
0.2VDD
V
V
k
pF
kHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
s
V
Unit
Input voltage
Input high-level voltage
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
Rise time
Fall time
INH switching time
No.7159-2/26
LC75813E, 75813T
Electrical Characteristics
for the Allowable Operating Ranges
Parameter
Hysteresis
Input high level current
Input low level current
Symbol
V
H
I
IH
I
IL
V
OH
1
Output high level voltage
V
OH
2
V
OH
3
V
OL
1
Output low level voltage
V
OL
2
V
OL
3
V
MID
1
V
MID
2
Output middle level voltage*1
V
MID
3
V
MID
4
V
MID
5
Oscillator frequency
f
OSC
I
DD
1
I
DD
2
Current drain
I
LCD
1
I
LCD
2
I
LCD
3
CE, CL, DI, INH
CE, CL, DI, INH: V
I
= 6.0 V
CE, CL, DI, INH: V
I
= 0 V
S1 to S87: I
O
= –20 µA
COM1 to COM4: I
O
= –100 µA
P1 to P8: I
O
= –1 mA
S1 to S87: I
O
= 20 µA
COM1 to COM4: I
O
= 100 µA
P1 to P8: I
O
= 1 mA
COM1 to COM4: 1/2 bias, I
O
= ±100 µA
S1 to S87: 1/3 bias, I
O
= ±20 µA
S1 to S87: 1/3 bias, I
O
= ±20 µA
COM1 to COM4: 1/3 bias, I
O
= ±100 µA
COM1 to COM4: 1/3 bias, I
O
= ±100 µA
OSC: R
OSC
= 39 kΩ, C
OSC
= 1000 pF
V
DD
:
Power-saving mode
V
DD
: V
DD
= 6.0 V, output open, f
OSC
= 38 kHz
V
LCD
:
Power-saving mode
V
LCD
:
V
LCD
= 6.0 V, output open, 1/2 bias, f
OSC
= 38 kHz
V
LCD
:
V
LCD
= 6.0 V, output open, 1/3 bias, f
OSC
= 38 kHz
200
120
250
1/2 V
LCD
–
0.9
2/3 V
LCD
–
0.9
1/3 V
LCD
–
0.9
2/3 V
LCD
–
0.9
1/3 V
LCD
–
0.9
30.4
38
–5.0
V
LCD
– 0.9
V
LCD
– 0.9
V
LCD
– 0.9
0.9
0.9
0.9
1/2 V
LCD
+
0.9
2/3 V
LCD
+
0.9
1/3 V
LCD
+
0.9
2/3 V
LCD
+
0.9
1/3 V
LCD
+
0.9
45.6
5
500
5
400
240
µA
kHz
V
V
V
Conditions
Ratings
min
typ
0.1 V
DD
5.0
max
Unit
V
µA
µA
Note:
*1
Excluding the bias voltage generation divider resistors built in the V
LCD
1 and V
LCD
2. (See Figure 1.)
VLCD
VLCD1
To the common segument drivers
VLCD2
Except these resistors
VSS
Figure 1
No. 7159-3/26
LC75813E, 75813T
1. When CL is stopped at the low level
VIH
CE
tøH
CL
VIH
50%
VIL
VIL
tøL
tr
DI
VIH
VIL
tf
tcp
tcs
tch
tds
tdh
2. When CL is stopped at the high level
VIH
CE
tøL
CL
tf
DI
tds
tdh
tr
VIH
VIL
VIL
tøH
VIH
50%
VIL
tcp
tcs
tch
Figure 2
Block Diagram
COM1
COM2
COM3
COM4/S87
S8/P8
S2/P2
COMMON
DRIVER
INH
OSC
VDD
VLCD
VLCD1
VLCD2
VSS
CLOCK
GENERATOR
SEGMENT
DRIVER
& LATCH
SHIFT REGISTER
ADDRESS
DETECTOR
CE
DI
CL
S1/P1
S86
S85
S9
No. 7159-4/26
LC75813E, 75813T
Pin Functions
Symbol
S1/P1 to S8/P8
S9 to S86
Pin No.
LC75813E
LC75813T
Function
Segment outputs for displaying the display data transferred by serial data
input. The pins S1/P1 to S8/P8 can be used as general-purpose output
ports when so set up by the control data.
Common driver outputs.
The frame frequency is f
O
Hz.
The COM4/S87 pin can be used as a segment output in 1/3 duty.
Oscillator connection.
Active
I/O
Handling
when unused
3 to 10
11 to 88
1 to 8
9 to 86
—
O
Open
COM1 to COM3
COM4/S87
92 to 90 90 to 88
89
87
—
O
Open
OSC
98
96
An oscillator circuit is formed by connecting an external resistor and
capacitor to this pin.
Serial data transfer inputs. These pins are connected to the control
microprocessor.
CE: Chip enable
CL: Synchronization clock
DI: Transfer data
Display off control input
• INH = low (V
SS
) ....Off
S1/P1 to S8/P8 = low (V
SS
)
(These pins are forcibly set to the segment output port
function and fixed at the V
SS
level.)
S9 to S86 = low (V
SS
)
COM1 to COM3 = low (V
SS
)
COM4/S87 = low (V
SS
)
• INH = high (V
DD
) ..On
Note that serial data transfers can be performed when the display is forced
off by this pin.
—
I/O
V
DD
CE
CL
DI
100
1
2
98
99
100
H
I
I
GND
—
I
INH
99
97
L
I
GND
V
LCD
1
95
93
Used to apply the LCD drive 2/3 bias voltage externally. This pin must be
connected to V
LCD
2 when 1/2 bias drive is used.
Used to apply the LCD drive 1/3 bias voltage externally. This pin must be
connected to V
LCD
1 when 1/2 bias drive is used.
Logic block power supply. Provide a voltage in the range 2.7 to 6.0 V.
LCD driver block power supply. Provide a voltage in the range 2.7 to 6.0 V.
ROS Courses：https://training.eeworld.com.cn/course/5215
This ROS course is a ROS robot programming guide based on the experiences we had accumulated from ROS projects like Turtle ......
与云数据库相比，小型计算机是专门为网络边缘的去中心化坚固计算而构建的。通过将应用程序、分析和处理服务移动到更靠近数据生成源的位置，业务运营可以获得改进的实时计算应用程序性能。 l 从奔腾到酷睿i5的可扩展CPU性能 l 智能电源点火管理和CAN总线网络支持 l 无线局域网和广域网LTE连接 l 丰富的I/O可扩展性，包括PoE、PCI、PCIe、COM l 适用于宽工作温度和宽电压输入的坚固...[详细]
工业自动化与控制
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
