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LC75847T の電気的特性と機能

LC75847TのメーカーはON Semiconductorです、この部品の機能は「General-Purpose LCD Driver」です。


製品の詳細 ( Datasheet PDF )

部品番号 LC75847T
部品説明 General-Purpose LCD Driver
メーカ ON Semiconductor
ロゴ ON Semiconductor ロゴ 




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LC75847T Datasheet, LC75847T PDF,ピン配置, 機能
LC75847T
CMOS LSI
1/3, 1/4 Duty General-Purpose
LCD Driver
www.onsemi.com
Overview
The LC75847T is 1/3 duty and 1/4 duty general-purpose LCD driver that can be
used for frequency display in electronic tuners under the control of a
microcontroller. The LC75847T can drive an LCD with up to 420 segments
directly. The LC75847T can also control up to 8 general-purpose output ports.
Features
Switching between 1/3 duty and 1/4 duty drive techniques under serial data control.
TQFP120 14x14
Switching between 1/2 bias and 1/3 bias drive techniques under serial data control.
Up to 318 segments for 1/3 duty drive and 420 segments for 1/4 duty drive can be displayed.
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.
Serial data control of frame frequency for common and segment output waveforms.
High generality, since display data is displayed directly without decoder intervention.
Built-in display contrast adjustment circuit
Independent VLCD for the LCD driver block
The INH pin can force the display to the off state.
RC oscillator circuit
Specifications
Absolute Maximum Ratings at Ta = 25C, VSS = 0V
Parameter
Symbol
Conditions
Maximum supply voltage
Input voltage
Output voltage
Output current
Allowable power dissipation
VDD max
VLCD max
VIN1
VIN2
VIN3
VOUT1
VOUT2
IOUT1
IOUT2
IOUT3
Pd max
VDD
VLCD
CE, CL, DI, INH
OSC
VLCD1, VLCD2
OSC
VLCD0, S1 to S106, COM1 to COM4, P1 to P8
S1 to S106
COM1 to COM4
P1 to P8
Ta = 85°C
Operating temperature
Topr
Storage temperature
Tstg
Ratings
–0.3 to +7.0
–0.3 to +7.0
–0.3 to +7.0
–0.3 to VDD +0.3
–0.3 to VLCD +0.3
–0.3 to VDD +0.3
–0.3 to VLCD +0.3
300
3
5
200
–40 to +85
–55 to +125
unit
V
V
V
A
mA
mA
mW
C
C
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.
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.
ORDERING INFORMATION
See detailed ordering and shipping information on page 28 of this data sheet.
© Semiconductor Components Industries, LLC, 2013
October 2013 - Rev. 0
1
Publication Order Number :
LC75847T/D

1 Page





LC75847T pdf, ピン配列
LC75847T
Electrical Characteristics for the allowable operating ranges
Parameter
Symbol
Conditions
Ratings
min typ
Hysteresis
Input high level current
Input low level current
Output high level voltage
Output low level voltage
VH
IIH
IIL
VOH1
VOH2
VOH3
VOL1
VOL2
VOL3
VMID1
CE, CL, DI, INH
CE, CL, DI, INH: VI = 6.0 V
CE, CL, DI, INH: VI = 0 V
S1 to S106: IO = –20 µA
COM1 to COM4: IO = –100 µA
P1 to P8: IO = –1 mA
S1 to S106: IO = 20 µA
COM1 to COM4: IO = 100 µA
P1 to P8: IO = 1 mA
COM1 to COM4: 1/2 bias, IO = ±100 µA
0.1 VDD
–5.0
VLCD0 – 0.9
VLCD0 – 0.9
VLCD – 0.9
1/2 VLCD0
– 0.9
VMID2 S1 to S106: 1/3 bias, IO = ±20 µA
2/3 VLCD0
– 0.9
Output middle level voltage*1
VMID3 S1 to S106: 1/3 bias, IO = ±20 µA
1/3 VLCD0
– 0.9
VMID4 COM1 to COM4: 1/3 bias, IO = ±100 µA
2/3 VLCD0
– 0.9
VMID5 COM1 to COM4: 1/3 bias, IO = ±100 µA
1/3 VLCD0
– 0.9
Oscillator frequency
Current drain
fOSC
IDD1
IDD2
ILCD1
ILCD2
ILCD3
ILCD4
ILCD5
OSC: ROSC = 39 k, COSC = 1000 pF
VDD: Power-saving mode
VDD: VDD = 6.0 V, output open, fOSC = 38 kHz
VLCD: Power-saving mode
VLCD: VLCD = 6.0 V, output open, 1/2 bias, fOSC = 38 kHz,
VLCD0 = 0.70 VLCD to 0.95 VLCD
VLCD: VLCD = 6.0 V, output open, 1/2 bias, fOSC = 38 kHz,
VLCD0 = VLCD
VLCD: VLCD = 6.0 V, output open, 1/3 bias, fOSC = 38 kHz,
VLCD0 = 0.70 VLCD to 0.95 VLCD
VLCD: VLCD = 6.0 V, output open, 1/3 bias, fOSC = 38 kHz,
VLCD0 = VLCD
30.4
38
250
400
350
300
250
Note: *1 Excluding the bias voltage generation divider resistors built in the VLCD0, VLCD1, VLCD2, and VSS. (See Figure 1.)
max
5.0
0.9
0.9
0.9
1/2 VLCD0
+ 0.9
2/3 VLCD0
+ 0.9
1/3 VLCD0
+ 0.9
2/3 VLCD0
+ 0.9
1/3 VLCD0
+ 0.9
45.6
5
500
5
800
700
600
500
Unit
V
µA
µA
V
V
V
kHz
µA
VLCD
VLCD0
VLCD1
VLCD2
VSS
CONTRAST
ADJUSTER
To the common segment drivers
Except these resistors
Figure 1
No. 7389-3/27


3Pages


LC75847T 電子部品, 半導体
Pin Assignment
90
91
S91
S92
S93
S94
S95
S96
S97
S98
S99
S100
S101
S102
S103
S104
S105
S106/COM4
COM3
COM2
COM1
VDD
VLCD
VLCD0
VLCD1
VLCD2
VSS
OSC
INH
CE
CL
DI
120
1
LC75847T
LC75847T
(TQFP120)
61
60
S60
S59
S58
S57
S56
S55
S54
S53
S52
S51
S50
S49
S48
S47
S46
S45
S44
S43
S42
S41
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
31
30
No. 7389-6/27

6 Page



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部品番号部品説明メーカ
LC75847T

General-Purpose LCD Driver

ON Semiconductor
ON Semiconductor


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