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LC75844MHS-MPB-E

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16
© Semiconductor Components Industries, LLC, 2017 1 Publication Order Number :
July 2017 - Rev. 1 LC75844M/D
www.onsemi.com
ORDERING INFORMATION
See detailed ordering and shipping information on page 16 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.
LC75844M
1/4-Duty General-Purpose
LCD Driver
Overview
The LC75844M is a 1/4 duty general-purpose LCD driver that can be
used for frequency display in electronic tuners under the control of a
microcontroller. The LC75844M can drive an LCD with up to 88
segments directly. The LC75844M can also control up to 4 general-
purpose output ports. Since the LC75844M uses 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.
Application
Car, Home frequency display
Features
Support for 1/4 duty 1/2 bias or 1/4 duty 1/3 bias drive of up to 88
segments under serial data control.
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
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
SOIC36 W / MFP36SDJ (375 mil)
LC75844M
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 +7.0
V
V
LCD
max V
LCD
0.3 to +7.0
Input voltage
V
IN
1
CE, CL, DI,
INH
0.3 to +7.0
V
V
IN
2 OSC
0.3 to V
DD
+0.3
V
IN
3 V
LCD
1, V
LCD
2
0.3 to V
LCD
+0.3
Output voltage
V
OUT
1 OSC
0.3 to V
DD
+0.3
V
V
OUT
2 S1 to S22, COM1 to COM4, P1 to P4
0.3 to V
LCD
+0.3
Output current
I
OUT
1 S1 to S22
300 A
I
OUT
2 COM1 to COM4
3
mA
I
OUT
3 P1 to P4
5
Allowable power dissipation Pd max Ta = 85C
100 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
2.7 6.0
V
V
LCD
V
LCD
2.7 6.0
Input voltage
V
LCD
1 V
LCD
1
2/3V
LCD
V
LCD
V
V
LCD
2 V
LCD
2
1/3V
LCD
V
LCD
Input high-level voltage V
IH
CE, CL, DI,
INH
0.8V
DD
6.0 V
Input low-level voltage V
IL
CE, CL, DI,
INH
0 0.2V
DD
V
Recommended external resistor Rosc OSC
43 kΩ
Recommended external
capacitor
Cosc OSC
680 pF
Oscillation guaranteed range fosc OSC
25 50 100 kHz
Data setup time tds CL, DI [Figure 2]
160
ns
Data hold time tdh CL, DI [Figure 2]
160
ns
CE wait time tcp CE, CL [Figure 2]
160
ns
CE setup time tcs CE, CL [Figure 2]
160
ns
CE hold time tch CE, CL [Figure 2]
160
ns
High-level clock pulse width
tH CL [Figure 2]
160
ns
Low-level clock pulse width
tL CL [Figure 2]
160
ns
Rise time tr CE, CL, DI [Figure 2]
160
ns
Fall time tf CE, CL, DI [Figure 2]
160
ns
INH
switching time
tc
INH
, CE [Figure 3]
10
s
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.
LC75844M
www.onsemi.com
3
Electrical Characteristics at Allowable Operating Ranges
Parameter Symbol Pin Conditions
Ratings
Unit
min typ max
Hysteresis width V
H
CE, CL, DI,
INH
0.1V
DD
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
Output high-level
voltage
V
OH
1 S1 to S22 I
O
= 20 A
V
LCD
0.9
V
V
OH
2 COM1 to COM4 I
O
= 100 A
V
LCD
0.9
V
OH
3 P1 to P4 I
O
= 1 mA
V
LCD
0.9
Output low-level
voltage
V
OL
1 S1 to S22 I
O
= 20 A
0.9
V
V
OL
2 COM1 to COM4 I
O
= 100 A
0.9
V
OL
3 P1 to P4 I
O
= 1 mA
0.9
Output middle-
level voltage
*1
V
MID
1 COM1 to COM4 1/2 bias, I
O
= ±100 A 1/2V
LCD
0.9
1/2V
LCD
+0.9
V
V
MID
2 S1 to S22 1/3 bias, I
O
= ±20 A 2/3V
LCD
0.9
2/3V
LCD
+0.9
V
MID
3 S1 to S22 1/3 bias, I
O
= ±20 A 1/3V
LCD
0.9
1/3V
LCD
+0.9
V
MID
4 COM1 to COM4 1/3 bias, I
O
= ±100 A 2/3V
LCD
0.9
2/3V
LCD
+0.9
V
MID
5 COM1 to COM4 1/3 bias, I
O
= ±100 A 1/3V
LCD
0.9
1/3V
LCD
+0.9
Oscillator
frequency
f
OSC
OSC Rosc
= 43 kΩ
Cosc
= 680 pF
40 50 60 kHz
Supply current I
DD
1 V
DD
Power saving mode
5
A
I
DD
2 V
DD
V
DD
= 6.0 V, output open,
fosc
= 50 kHz
230 460
I
LCD
1 V
LCD
Power saving mode
5
I
LCD
2 V
LCD
V
LCD
= 6.0 V, output open,
1/2 bias, fosc
= 50 kHz
100 200
I
LCD
3 V
LCD
V
LCD
= 6.0 V, output open,
1/3 bias, fosc
= 50 kHz
60 120
Note: *1 Excluding the bias voltage generation divider resistors built into V
LCD
1, V
LCD
2. (See Figure 1.)
Except these resistors
V
SS
V
LCD
2
V
LCD
1
V
LCD
To the common segment driver
Figure 1
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.
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P16

LC75844MHS-MPB-E

Mfr. #:
Buy LC75844MHS-MPB-E
Manufacturer:
ON Semiconductor
Description:
LCD Drivers LCD DISPLAY DRIVER
Lifecycle:
New from this manufacturer.
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