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LC75842E の電気的特性と機能

LC75842EのメーカーはSanyo Semicon Deviceです、この部品の機能は「General-Purpose 1/2 Duty LCD Display Driver」です。


製品の詳細 ( Datasheet PDF )

部品番号 LC75842E
部品説明 General-Purpose 1/2 Duty LCD Display Driver
メーカ Sanyo Semicon Device
ロゴ Sanyo Semicon Device ロゴ 




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LC75842E Datasheet, LC75842E PDF,ピン配置, 機能
Ordering number : EN4966A
CMOS LSI
LC75842E
General-Purpose 1/2 Duty LCD Display Driver
Overview
The LC75842E is a 1/2 duty general-purpose LCD display
driver for applications such as microprocessor-controlled
electronic tuning. It can drive up to 54 segments directly.
Features
• 1/2 duty, 1/2 bias drive of up to 54 segments
• Serial data input supports CCB* format communication
with the system controller.
• Backup function which is based on a power saving
mode and all segments off functions that are controlled
by serial data.
• High generality, since display data is displayed directly
without decoder intervention.
• The display can be forced to the off state with the INH
pin.
• RC oscillator circuit
• CCB is a trademark of SANYO ELECTRIC CO., LTD.
• CCB is SANYO’s original bus format and all the bus
addresses are controlled by SANYO.
Package Dimensions
unit: mm
3162B-QFP36
[LC75842E]
SANYO: QFP36
Specifications
Absolute Maximum Ratings at Ta = 25°C, VSS = 0 V
Parameter
Maximum supply voltage
Input voltage
Output voltage
Output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VDD max
VIN1
VIN2
VOUT
IOUT1
IOUT2
Pd max
Topr
Tstg
Conditions
VDD
CE, CL, DI, INH
OSC
OSC, S1 to S27, COM1, COM2
S1 to S27
COM1, COM2
Ta = 85°C
Ratings
–0.3 to +6.5
–0.3 to +6.5
–0.3 to VDD + 0.3
–0.3 to VDD + 0.3
100
1
100
–40 to +85
–55 to +125
Unit
V
V
V
V
µA
mA
mW
°C
°C
Allowable Operating Ranges at Ta = –40 to +85°C, VSS = 0 V
Parameter
Symbol
Conditions
Ratings
min typ max
Supply voltage
Input high level voltage
Input low level voltage
Recommended external resistance
Recommended external capacitance
Guaranteed oscillator range
VDD
VIH
VIL
ROSC
COSC
fOSC
VDD*
CE, CL, DI, INH
CE, CL, DI, INH
OSC
OSC
OSC
4.0
0.8 VDD
0
25
5.0 6.0
6.0
0.2 VDD
68
680
50 100
Note: * Please contact your Sanyo sales representative if you need to operate the LC75842E at a power supply voltage VDD of 3.0 V (min.).
Unit
V
V
V
k
pF
kHz
Continued on next page.
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
41096HA (OT)/61595HA (OT) No. 4966-1/9

1 Page





LC75842E pdf, ピン配列
Pin Assignment
LC75842E
Block Diagram
Pin Functions
Pin
S1 to S27
COM1
COM2
OSC
Pin No.
1 to 27
36
35
28
Function
Segment outputs for displaying the display data transferred by serial data input.
Common driver outputs. The frame frequency fO is fOSC/512 Hz.
Oscillator connection. An oscillator circuit is formed by connecting an external
resistor and capacitor at this pin.
Active
CE
32 Serial data transfer inputs. Must be connected to the control microprocessor.
H
CL 33 CE: Chip enable
CL: Synchronization clock
DI 34 DI: Transfer data
Display off control input
INH = low (VSS) .....Display off (S1 to S27, COM1 and COM2 = low)
INH 30 INH = high (VDD)....Display on
L
However, serial data transfer is possible when the display is forced off by this
pin.
VDD
29 Power supply. Provide a power supply voltage of between 4.0 and 6.0 V.
VSS 31 Power supply. Connect this pin to ground.
Handling when
I/O unused
O Open
O Open
I/O VDD
I GND
I GND
——
——
No. 4966-3/9


3Pages


LC75842E 電子部品, 半導体
LC75842E
Control Data Functions
1. BU: Control data for specifying normal mode or power saving mode
This control data bit is used to control the normal mode/power saving mode state of the LC75842E.
BU Mode
0 Normal mode
1 Power saving mode (The OSC pin oscillator is stopped and the common and segment pins go to the VSS level.)
2. SC: Control data for specifying all segments on or off
This control data bit is used to turn all segments on or off.
SC Display state
0 On
1 Off
Note that when SC is 1 the display is turned off by outputting the segment off waveforms from the segment pins.
Correspondence between Display Data and Segment Output Pins
Segment
output pin
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
COM1
D1
D3
D5
D7
D9
D11
D13
D15
D17
D19
D21
D23
D25
D27
COM2
D2
D4
D6
D8
D10
D12
D14
D16
D18
D20
D22
D24
D26
D28
Segment
output pin
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
S25
S26
S27
COM1
D29
D31
D33
D35
D37
D39
D41
D43
D45
D47
D49
D51
D53
COM2
D30
D32
D34
D36
D38
D40
D42
D44
D46
D48
D50
D52
D54
For example, the table below lists the output states for the S11 segment output pin.
Display data
D21 D22
00
01
10
11
Segment output pin (S11) state
Both segments for COM1 and COM2 are off.
Segment for COM2 is on.
Segment for COM1 is on.
Both segments for COM1 and COM2 are on.
No. 4966-6/9

6 Page



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共有リンク

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部品番号部品説明メーカ
LC75842

General-Purpose 1/2 Duty LCD Display Driver

Sanyo Semicon Device
Sanyo Semicon Device
LC75842E

General-Purpose 1/2 Duty LCD Display Driver

Sanyo Semicon Device
Sanyo Semicon Device


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