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LC75854W の電気的特性と機能
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LC75854WのメーカーはSanyo Semicon Deviceです、この部品の機能は「1/4 Duty LCD Display Drivers with Key Input Function」です。 |
製品の詳細 ( Datasheet PDF )
| 部品番号 | LC75854W |
| |
| 部品説明 | 1/4 Duty LCD Display Drivers with Key Input Function | ||
| メーカ | Sanyo Semicon Device | ||
| ロゴ |  |
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このページの下部にプレビューとLC75854Wダウンロード（pdfファイル）リンクがあります。 Total 25 pages
Ordering number : ENN5066B
CMOS IC
LC75854E, 75854W
1/4 Duty LCD Display Drivers
with Key Input Function
Overview
The LC75854E and LC75854W are 1/4 duty LCD display
drivers that can directly drive up to 164 segments and can
control up to four general-purpose output ports. These
products also incorporate a key scan circuit that accepts
input from up to 30 keys to reduce printed circuit board
wiring.
Features
• Key input function for up to 30 keys (A key scan is
performed only when a key is pressed.)
• 1/4 duty - 1/2 bias and 1/4 duty - 1/3 bias drive schemes
can be controlled from serial data (up to 164 segments).
• Sleep mode and all segments off functions that are
controlled from serial data
• Segment output port/general-purpose output port
function switching that is controlled from serial data
• Serial data I/O supports CCB format communication
with the system controller.
• Direct display of display data without the use of a
decoder provides high generality.
• Provision of an on-chip voltage-detection type reset
circuit prevents incorrect displays.
• RC oscillator circuit
Package Dimensions
unit: mm
3159-QFP64E
1.0
48
49
[LC75854E]
17.2
14.0
1.6
0.8
0.35
1.0
33
32
0.15
64
1
17
16
0.1
2.7
unit: mm
3190-SQFP64
15.6
0.8
SANYO: QFP64E
1.25
48
49
[LC75854W]
12.0
10.0
0.5 0.18
1.25
33
32
0.15
64
1
17
16
• 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.
0.5 0.5
SANYO: SQFP64
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
O3099TH (OT)/N3095HA (OT)/52295TH (OT) No. 5066-1/25
1 Page  
LC75854E, 75854W
Electrical Characteristics for the Allowable Operating Ranges
Parameter
Hysteresis
Power-down detection voltage
Input high level current
Input low level current
Input floating voltage
Pull-down resistance
Output off leakage current
Output high level voltage
Output low level voltage
Output middle level voltage*2
Oscillator frequency
Current drain
Symbol
Conditions
VH
VDET
IIH
IIL
VIF
RPD
IOFFH
VOH1
VOH2
VOH3
VOH4
VOL1
VOL2
VOL3
VOL4
VOL5
VMID1
CE, CL, DI
CE, CL, DI: VI = 6.0 V
CE, CL, DI: VI = 0 V
KI1 to KI5
KI1 to KI5: VDD = 5.0 V
DO: VO = 6.0 V
KS1 to KS6: IO = –500 µA
P1 to P4: IO = –1 mA
S1 to S41: IO = –20 µA
COM1 to COM4: IO = –100 µA
KS1 to KS6: IO = 25 µA
P1 to P4: IO = 1 mA
S1 to S41: IO = 20 µA
COM1 to COM4: IO = 100 µA
DO: IO = 1 mA
COM1 to COM4: 1/2 bias, IO = ±100 µA
VMID2 S1 to S41: 1/3 bias, IO = ±20 µA
VMID3 S1 to S41: 1/3 bias, IO = ±20 µA
VMID4 COM1 to COM4: 1/3 bias, IO = ±100 µA
VMID5
fOSC
IDD1
IDD2
IDD3
COM1 to COM4: 1/3 bias, IO = ±100 µA
OSC: R = 62 kΩ, C = 680 pF
Sleep mode
VDD = 6.0 V, output open, 1/2 bias, fOSC = 50 kHz
VDD = 6.0 V, output open, 1/3 bias, fOSC = 50 kHz
min
2.7
–5.0
50
VDD – 1.2
VDD – 1.0
VDD – 1.0
VDD – 1.0
0.2
1/2 VDD –
1.0
2/3 VDD –
1.0
1/3 VDD –
1.0
2/3 VDD –
1.0
1/3 VDD –
1.0
40
Ratings
typ
0.1 VDD
3.0
100
VDD – 0.5
0.5
0.1
50
250
200
max
3.3
5.0
0.05 VDD
250
6.0
VDD – 0.2
1.5
1.0
1.0
1.0
0.5
1/2 VDD +
1.0
2/3 VDD +
1.0
1/3 VDD +
1.0
2/3 VDD +
1.0
1/3 VDD +
1.0
60
100
500
400
Note: *2. Excluding the bias voltage generation divider resistor built into VDD1 and VDD2. (See Figure 1.)
Unit
V
V
µA
µA
V
kΩ
µA
V
V
V
V
V
V
V
V
V
V
V
V
V
V
kHz
µA
µA
µA
To the common segment driver
Excluding these resistors.
Figure 1
No. 5066-3/25
3Pages 
Pin Functions
Pin Pin No.
S1/P1 to S4/P4
S5 to S39
1 to 4
5 to 39
COM1
COM2
COM3
COM4
40
41
42
43
LC75854E, 75854W
Function
Segment outputs for displaying the display data transferred by serial data
input.
The S1/P1 to S4/P4 pins can be used as general-purpose output ports
under serial data control.
Common driver outputs
The frame frequency fO is given by: fO = (fOSC/512) Hz.
Active
Handling
I/O when unused
— O Open
— O Open
KS1/S40,
KS2/S41,
KS3 to KS6
44
45
46 to 49
Key scan outputs
Although normal key scan timing lines require diodes to be inserted in the
timing lines to prevent shorts, since these outputs are unbalanced CMOS
transistor outputs, these outputs will not be damaged by shorting when
these outputs are used to form a key matrix. The KS1/S40 and KS2/S41
pins can be used as segment outputs when so specified by the control data.
—
O Open
KI1 to KI5
OSC
CE
CL
DI
DO
TEST
VDD1
VDD2
VDD
VSS
50 to 54
60
62
63
64
61
55
57
58
56
59
Key scan inputs
These pins have built-in pull-down resistors.
Oscillator connection
An oscillator circuit is formed by connecting an external resistor and
capacitor at this pin.
Serial data interface connections to the controller. Note that DO, being an
open-drain output, requires a pull-up resistor.
CE: Chip enable
CL: Synchronization clock
DI: Transfer data
DO: Output data
This pin must be connected to ground.
Used for applying the LCD drive 2/3 bias voltage externally. Must be
connected to VDD2 when a 1/2 bias drive scheme is used.
Used for applying the LCD drive 1/3 bias voltage externally. Must be
connected to VDD1 when a 1/2 bias drive scheme is used.
Power supply connection. Provide a voltage of between 4.5 and 6.0 V.
Power supply connection. Connect to ground.
H I GND
— I/O VDD
HI
I GND
—I
— O Open
—I
—
— I Open
— I Open
——
——
—
—
No. 5066-6/25
6 Page | |||
| ページ | 合計 : 25 ページ | ||
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PDF ダウンロード | [ LC75854W データシート.PDF ] | |
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データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
共有リンク
Link :| 部品番号 | 部品説明 | メーカ |
| LC75854E | 1/4 Duty LCD Display Drivers with Key Input Function | Sanyo Semicon Device |
| LC75854W | 1/4 Duty LCD Display Drivers with Key Input Function | Sanyo Semicon Device |