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LC75879PTS-H

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© Semiconductor Components Industries, LLC, 2017 1 Publication Order Number :
July 2017 - Rev. 1 LC75879PT/D
www.onsemi.com
ORDERING INFORMATION
See detailed ordering and shipping information on page 35 of this data sheet.
* Computer Control Bus (CCB) is an ON Semiconductor’s original bus format and
the bus addresses are controlled by ON Semiconductor.
LC75879PT
1/4, 1/3-Duty General-Purpose
LCD Driver
Overview
The LC75879PT is the 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 272 segments directly, the LC75879PT can also control up
to 8 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 272 segments
When 1/3-duty: Capable of driving up to 207 segments
Serial data input supports CCB* format communication with the system
controller (Support 3.3 V and 5 V 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 portfunction.
(Support for up to 8 general-purpose output ports)
Support for the PWM output function of a maximum of 3 ch (It can output
from the general-purpose output port).
Support for clock output function of 1 ch (It can output from the general-
purpose output port).
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.
Built-in display contrast adjustment 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).
TQFP80 12x12 / TQFP80J
LC75879PT
www.onsemi.com
2
Specifications
Absolute Maximum Ratings
at Ta = 25C, V
SS
= 0 V
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage
V
DD
max
V
DD
0.3 to +6.8 V
Input voltage
V
IN
1
CE, CL, DI,
INH
0.3 to +6.8
V
V
IN
2
OSCI, V
DD
1, V
DD
2
0.3 to V
DD
+0.3
Output voltage
V
OUT
S1 to S69, COM1 to COM4, P1 to P8
0.3 to V
DD
+0.3 V
Output current
I
OUT
1
S1 to S68
300 A
I
OUT
2
COM1 to COM4, S69
3
mA
I
OUT
3
P1 to P8
5
Allowable power dissipation
Pd max
Ta = 85C
200 mW
Operating temperature
Topr
40 to +85 C
Storage temperature
Tstg
55 to +125 C
Allowable Operating Ranges at Ta = 40 to +85C, V
SS
= 0 V
Parameter Symbol Conditions
Ratings
Unit
min typ max
Supply voltage V
DD
V
DD
4.5 6.3 V
Input voltage
*1
V
DD
1
V
DD
1
2/3V
DD
0 V
DD
0
V
V
DD
2
V
DD
2
1/3V
DD
0 V
DD
0
Input high level voltage V
IH
1
CE, CL, DI,
INH
0.4V
DD
6.3
V
V
IH
2
OSCI: External clock operating
mode
0.4V
DD
V
DD
Input low level voltage V
IL
1
CE, CL, DI,
INH
0 0.2V
DD
V
V
IL
2
OSCI: External clock operating
mode
0 0.2V
DD
External clock
operating frequency
f
CK
OSCI: External clock operating
mode [Figure4]
10 300 600 kHz
External clock duty cycle D
CK
OSCI: External clock operating
mode [Figure4]
30 50 70 %
Data setup time tds CL, DI [Figure2], [Figure3]
160 ns
Data hold time tdh CL, DI [Figure2], [Figure3]
160 ns
CE wait time tcp CE, CL [Figure2], [Figure3]
160 ns
CE setup time tcs CE, CL [Figure2], [Figure3]
160 ns
CE hold time tch CE, CL [Figure2], [Figure3]
160 ns
High level clock pulse width tφH CL [Figure2], [Figure3]
160 ns
Low level clock pulse width tφL CL [Figure2], [Figure3]
160 ns
Rise time tr CE, CL, DI [Figure2], [Figure3]
160 ns
Fall time tf CE, CL, DI [Figure2], [Figure3]
160 ns
INH
switching time tc
INH
, CE [Figure5], [Figure6]
[Figure7], [Figure8]
10 s
Note : *1. V
DD
0 = 0.70V
DD
to V
DD
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.
Functional operation above the stresses listed in the Recommended Operating Ranges is not implied. Extended exposure to stresses beyond the Recommended
Operating Ranges limits may affect device reliability.
LC75879PT
www.onsemi.com
3
Electrical Characteristics for the Allowable Operating Ranges
Parameter Symbol Pin Conditions
Ratings
Unit
min typ max
Hysteresis V
H
CE, CL, DI,
INH
0.03V
DD
V
Input high level
current
I
IH
1 CE, CL, DI,
INH
V
I
= 6.3 V
5.0
A
I
IH
2 OSCI V
I
= V
DD
: External
clock operating mode
5.0
Input low level
current
I
IL
1 CE, CL, DI,
INH
V
I
= 0 V
5.0
A
I
IL
2 OSCI V
I
= 0 V: External
clock operating mode
5.0
Output high level
voltage *1
V
OH
1 S1 to S69 I
O
= 20 A
V
DD
00.9
V
V
OH
2 COM1 to COM4 I
O
= 100 A
V
DD
00.9
V
OH
3 P1 to P8 I
O
= 1mA
V
DD
0.9
Output low level
voltage
V
OL
1 S1 to S69 I
O
= 20 A
0.9
V
V
OL
2 COM1 to COM4 I
O
= 100 A
0.9
V
OL
3 P1 to P8 I
O
= 1 mA
0.9
Output middle
level
voltage
*1
*2
V
MID
1 S1 to S69 1/3 bias I
O
= 20 A 2/3V
DD
0
0.9
2/3V
DD
0
+0.9
V
V
MID
2 S1 to S69 1/3 bias I
O
= 20 A 1/3V
DD
0
0.9
1/3V
DD
0
+0.9
V
MID
3 COM1 to COM4 1/3 bias I
O
= 100 A 2/3V
DD
0
0.9
2/3V
DD
0
+0.9
V
MID
4 COM1 to COM4 1/3 bias I
O
= 100 A 1/3V
DD
0
0.9
1/3V
DD
0
+0.9
Oscillator
frequency
fosc Internal
oscillator circuit
Internal oscillator
operating mode
240 300 360 kHz
Current drain I
DD
1 V
DD
Power-saving mode
100
A
I
DD
2 V
DD
V
DD
= 6.3 V
Output open
Internal oscillator
operating mode
1000 2000
I
DD
3 V
DD
V
DD
= 6.3 V
Output open
External clock
operating mode
f
CK
= 300 kHz
V
IH
2 = 0.5V
DD
V
IL
2 = 0.1V
DD
1000 2000
Note: *1. V
DD
0 = 0.70V
DD
to V
DD
Note: *2. Excluding the bias voltage generation divider resistors built in the V
DD
1 and V
DD
2. (See Figure 1.)
To the common and segment drivers
[Figure 1]
V
DD
2
V
DD
1
Except these resistors.
CONTRAST
ADJUSTER
V
DD
V
SS
V
DD
0
Product parametric performance is indicated in the Electrical Characteristics for the listed test conditions, unless otherwise noted. Product performance may not be
indicated by the Electrical Characteristics if operated under different conditions.
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LC75879PTS-H

Mfr. #:
Buy LC75879PTS-H
Manufacturer:
ON Semiconductor
Description:
LCD Drivers LCD DISPLAY DRIVER
Lifecycle:
New from this manufacturer.
Delivery:
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