Ordering number : ENA1953
LC75839PW
CMOS IC
1/4 and 1/3-Duty General-Purpose
LCD Display Driver
Overview
http://onsemi.com
The LC75839PW is 1/4 duty and 1/3 duty general-purpose microprocessor-controlled LCD driver that can be used in
applications such as frequency display in products with electronic tuning. In addition to being able to drive up to 208
segments directly, the LC75839PW can also control up to 4 general-purpose output ports. Because it has the PWM
output of a maximum of 3 ch, the brightness control of the LED backlight of RGB can be done. Incorporation of an
oscillation circuit helps to reduce the number of external resistors and capacitors required.
Features
•
Support for 1/4-duty 1/3-bias or 1/3-duty 1/3-bias drive techniques under serial data control.
When 1/4-duty: Capable of driving up to 208 segments
When 1/3-duty: Capable of driving up to 159 segments
•
Serial data input supports CCB format communication with the system controller. (Support 3.3V and 5V operation)
•
Serial data control of the power-saving mode based backup function and the all segments forced off function.
•
Serial data control of switching between the segment output port and general-purpose output port function.
(Support for up to 4 general-purpose output ports)
•
Support for the PWM output function of a maximum of 3ch. (It can output from the general-purpose output port ).
•
Support for clock output function of 1ch.
•
Serial data control of the frame frequency of the common and segment output waveforms.
•
Serial data control of switching between the internal oscillator operating mode and external clock operating mode.
•
High generality, since display data is displayed directly without the intervention of a decoder circuit.
•
The INH pin allows the display to be forced to the off state.
•
Incorporation of an oscillator circuit. (Incorporation of resistor and capacitor for an oscillation)
•
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.
Semiconductor Components Industries, LLC, 2013
July, 2013
62911HKPC 20110412-S00001 No.A1953-1/27
LC75839PW
Specifications
Absolute Maximum Ratings
at Ta = 25°C, VSS = 0V
Parameter
Maximum supply voltage
Input voltage
Symbol
VDD max
VIN1
VIN2
Output voltage
Output current
VOUT
IOUT1
IOUT2
IOUT3
Allowable power dissipation
Operating temperature
Storage temperature
Pd max
Topr
Tstg
VDD
CE, CL, DI, INH
OSCI, VDD1, VDD2
S1 to S53, COM1 to COM4, P1 to P4
S1 to S52
COM1 to COM4, S53
P1 to P4
Ta=85°C
Conditions
Ratings
-0.3 to +6.5
-0.3 to +6.5
-0.3 to VDD+0.3
-0.3 to VDD+0.3
300
3
5
200
-40 to +85
-55 to +125
mW
°C
°C
V
μA
mA
Unit
V
V
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating
Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.
Allowable Operating Ranges
at Ta = -40 to +85°C, VSS = 0V
Parameter
Supply voltage
Input voltage
Symbol
VDD
VDD1
VDD2
Input high-level voltage
VIH1
VIH2
Input low-level voltage
VIL1
VIL2
External clock operating frequency
External clock duty cycle
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
fCK
DCK
tds
tdh
tcp
tcs
tch
t
φ
H
t
φ
L
tr
tf
tc
VDD
VDD1
VDD2
CE, CL, DI, INH
OSCI: External clock operating mode
CE, CL, DI, INH
OSCI: External clock operating mode
OSCI: External clock operating mode [Figure 4]
OSCI: External clock operating mode [Figure 4]
CL, DI
CL, DI
CE, CL
CE, CL
CE, CL
CL
CL
CE, CL, DI
CE, CL, DI
INH, CE
[Figure 2][Figure 3]
[Figure 2][Figure 3]
[Figure 2][Figure 3]
[Figure 2][Figure 3]
[Figure 2][Figure 3]
[Figure 2][Figure 3]
[Figure 2][Figure 3]
[Figure 2][Figure 3]
[Figure 2][Figure 3]
[Figure 5][Figure 6]
10
0.4VDD
0.4VDD
0
0
10
30
160
160
160
160
160
160
160
160
160
300
50
Conditions
min
4.5
2/3VDD
1/3VDD
Ratings
typ
max
6.0
VDD
VDD
6.0
VDD
0.2VDD
0.2VDD
600
70
kHz
%
ns
ns
ns
ns
ns
ns
ns
ns
ns
μs
V
V
V
V
Unit
No.A1953-2/27
LC75839PW
Electrical Characteristics
for the Allowable Operating Ranges
Parameter
Hysteresis
Input high-level current
Symbol
VH
IIH1
IIH2
Input low-level current
IIL1
IIL2
Output high-level voltage
VOH1
VOH2
VOH3
Output low-level voltage
VOL1
VOL2
VOL3
Output middle-level
voltage *1
VMID2
VMID3
VMID4
Oscillator frequency
Current drain
fosc
IDD1
IDD2
S1 to S53
COM1
to COM4
COM1
to COM4
Internal
oscillator circuit
VDD
VDD
Power-saving mode
VDD = 6.0V
Output open
Internal oscillator operating mode
IDD3
VDD
VDD = 6.0V
Output open
External clock operating mode
fCK = 300kHz
VIH2 = 0.5VDD
VIL2 = 0.1VDD
800
1600
μA
Internal oscillator operating mode
1/3 bias IO = ±100μA
1/3 bias IO = ±20μA
1/3 bias IO = ±100μA
VMID1
Pin
CE, CL, DI, INH
CE, CL, DI, INH
OSCI
CE, CL, DI, INH
OSCI
S1 to S53
COM1
to COM4
P1 to P4
S1 to S53
COM1
to COM4
P1 to P4
S1 to S53
IO =1mA
1/3 bias IO = ±20μA
2/3VDD
-0.9
1/3VDD
-0.9
2/3VDD
-0.9
1/3VDD
-0.9
240
300
IO = -1mA
IO = 20μA
IO = 100μA
VI = 6.0V
VI = VDD: External clock operating mode
VI = 0V
VI = 0V: External clock operating mode
IO = -20μA
IO = -100μA
-5.0
-5.0
VDD-0.9
VDD-0.9
VDD-0.9
0.9
0.9
0.9
2/3VDD
+0.9
1/3VDD
+0.9
2/3VDD
+0.9
1/3VDD
+0.9
360
100
800
1600
kHz
V
V
V
Conditions
min
Ratings
typ
0.03VDD
5.0
5.0
max
V
μA
μA
Unit
Note:
*1
Excluding the bias voltage generation divider resistors built in the VDD1 and VDD2. (See Figure 1.)
VDD
VDD1
To the common and segment drivers
VDD2
Except these resistors.
VSS
[Figure 1]
No.A1953-3/27
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