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PDF LC75852E Data sheet ( Hoja de datos )
| Número de pieza | LC75852E | |
| Descripción | Asynchronous Silicon Gate 1/2 Duty LCD Driver | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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Ordering number : EN4828A
LC75852E
LC75852W
CMOS LSI
Asynchronous Silicon Gate
1/2 Duty LCD Driver
with On-Chip Key Input Function
http://onsemi.com
Overview
The LC75852E and LC75852W are 1/2 duty dynamic LCD display drivers. In addition to being able to directly
drive LCD panels with up to 90 segments, they can also control up to four general-purpose output ports. These
products also include a key scan circuit which allows them to accept input from keypads with up to 30 keys. This
allows end product front panel wiring to be simplified.
Features
Up to 30 key inputs (Key scan is only performed when a key is pressed.)
1/2 duty – 1/2 bias (up to 90 segments)
Sleep mode and the all segments off function can be controlled from serial data.
Segment output port/general-purpose output port usage can be controlled from serial data.
Serial data I/O supports CCB format communication with the system controller.
High generality since display data is displayed directly without decoder intervention
Reset pin that can establish the initial state.
Specifications
Absolute Maximum Ratings at Ta = 25C, VSS = 0V
Parameter
Maximum supply voltage
Input voltage
Output voltage
Output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VDD max
VIN
VOUT
IOUT1
IOUT2
IOUT3
Pd max
Topr
Tstg
Conditions
VDD
OSC, CE, CL, DI, RES, KI1 to KI5
OSC, DO, S1 to S45, COM1, COM2, KS1 to KS6, P1 to P4
S1 to S45
COM1, COM2, KS1 to KS6
P1 to P4
Ta = 85C
Ratings
0.3 to +7.0
0.3 to VDD+0.3
0.3 to VDD+0.3
100
1
5
200
40 to +85
55 to +125
Unit
V
V
V
A
mA
mW
C
C
Package Dimensions
unit : mm (typ)
48
[ LC75852E ] 49
QIP64E(14X14)
17.2
14.0
33
32
12.0
10.0
[ LC75852W ]
48 33
SQFP64(10X10) 49
32
64
1
(1.0)
0.8
17
16
0.35
0.15
64
1
(1.25)
0.5
17
16
0.18
0.15
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
63096HA (OT)/N1594TH (OT) B8-1326, 1328 No.4828-1/16
1 page  
Serial Data Input
1. When stopped with CL at the low level
LC75852E, 75852W
2. When stopped with CL at the high level
CCB address......................[42H]
D1 to D90 ...........................Display data
S0, S1 ................................Sleep control data
K0, K1 ................................Key scan output/segment output selection data
P0, P1 ................................Segment output port/general-purpose output port selection data
SC ......................................Segment on/off control data
No. 4828-5/16
5 Page 
LC75852E, 75852W
1/2 Duty - 1/2 Bias LCD Drive Scheme
COM1
COM2
S1 to S45 outputs for segments on
COM1 side being lit
S1 to S45 outputs for segments on
COM2 side being lit
S1 to S45 outputs for segments on
COM1,COM2 sides being lit
S1 to S45 outputs for segments on
COM1,COM2 sides not being lit
RES and the Display Controller
Since the LSI internal data (D1 to D90 and the control data) is undefined when power is first applied, the output pins
S1/P1 to S4/P4, S5 to S43, COM1, COM2, KS1/S44 and KS2/S45 should be held low by setting the RES pin low at the
same time as power is applied. Then, meaningless displays at power on can be prevented by transferring data from the
controller and setting RES high when that transfer has completed.
Figure 2
No. 4828-11/16
11 Page | ||
| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet LC75852E.PDF ] | |
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