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LC75741E の電気的特性と機能

LC75741EのメーカーはSanyo Semicon Deviceです、この部品の機能は「1/2 Duty VFD Driver for Frequency Displays」です。


製品の詳細 ( Datasheet PDF )

部品番号 LC75741E
部品説明 1/2 Duty VFD Driver for Frequency Displays
メーカ Sanyo Semicon Device
ロゴ Sanyo Semicon Device ロゴ 




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LC75741E Datasheet, LC75741E PDF,ピン配置, 機能
Ordering number : EN*4965
CMOS LSI
LC75741E, 75741W
1/2 Duty VFD Driver for Frequency Displays
Preliminary
Overview
The LC75741E and LC75741W are 1/2 duty VFD drivers
for use in electronic tuning frequency displays controlled
by a microcontroller. These products can directly drive
VFD displays with up to 106 segments.
Functions and Features
• 106 segment outputs
• Noise reduction circuit built into the output drivers.
• Display and dimmer data communication with the
controller using the CCB* format.
• High generality, since display data is displayed directly
without decoder intervention
• All segments can be turned off with the BLK pins.
• Package: QFP64E (LC75741E)
SQFP64 (LC75741W)
Note: * CCB is Sanyo’s original bus format with
address management for all Sanyo products.
Package Dimensions
unit: mm
3159-QFP64E
[LC75741E]
unit: mm
3190-SQFP64
[LC75741W]
SANYO: QIP64E
SANYO: SQFP64
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
52595TH (OT) No. 4965-1/10

1 Page





LC75741E pdf, ピン配列
1. When CL is stopped at the low level
LC75741E, 75741W
2. When CL is stopped at the high level
Pin Assignment
Figure 1
No. 4965-3/10


3Pages


LC75741E 電子部品, 半導体
LC75741E, 75741W
Correspondence between Display Data (SD1 to SD106) and Segment Output Pins
Segment
output pin
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
S23
S24
S25
S26
S27
G1
SD1
SD2
SD3
SD4
SD5
SD6
SD7
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15
SD16
SD17
SD18
SD19
SD20
SD21
SD22
SD23
SD24
SD25
SD26
SD27
G2
SD54
SD55
SD56
SD57
SD58
SD59
SD60
SD61
SD62
SD63
SD64
SD65
SD66
SD67
SD68
SD69
SD70
SD71
SD72
SD73
SD74
SD75
SD76
SD77
SD78
SD79
SD80
Segment
output pin
S28
S29
S30
S31
S32
S33
S34
S35
S36
S37
S38
S39
S40
S41
S42
S43
S44
S45
S46
S47
S48
S49
S50
S51
S52
S53
G1
SD28
SD29
SD30
SD31
SD32
SD33
SD34
SD35
SD36
SD37
SD38
SD39
SD40
SD41
SD42
SD43
SD44
SD45
SD46
SD47
SD48
SD49
SD50
SD51
SD52
SD53
G2
SD81
SD82
SD83
SD84
SD85
SD86
SD87
SD88
SD89
SD90
SD91
SD92
SD93
SD94
SD95
SD96
SD97
SD98
SD99
SD100
SD101
SD102
SD103
SD104
SD105
SD106
For example, the table below lists the segment output states for the S11 segment output pin.
Display data
SD11
SD64
00
01
10
11
Segment output pin (S11) state
Both segments for the G1 and G2 digit output pins are off
Segment for the G2 digit output pin is on
Segment for the G1 digit output pin is on
Both segments for the G1 and G2 digit output pins are on
BLK and the Display Control
Since the LSI internal data (SD1 to SD106 and DM0 to DM9) is undefined when power is first applied, the display is off
(S1 to S53, G1 and G2 = low) by setting the BLK pin low at the same time as power is applied. Then, meaningless
display at power-on can be prevented by transferring all 144 bits of serial data from the controller while the display is off
and setting BLK pin high after the transfer completes. (See Figure 3.)
Power Supply Sequence
Observe the following sequences when turning the power on and off. (See Figure 3.)
• Power on: Logic block power supply (VDD) on Driver block power supply (VFL) on
• Power off: Driver block power supply (VFL) off Logic block power supply (VDD) off
No. 4965-6/10

6 Page



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共有リンク

Link :


部品番号部品説明メーカ
LC75741

1/2 Duty VFD Driver for Frequency Displays

Sanyo Semicon Device
Sanyo Semicon Device
LC75741E

1/2 Duty VFD Driver for Frequency Displays

Sanyo Semicon Device
Sanyo Semicon Device
LC75741W

1/2 Duty VFD Driver for Frequency Displays

Sanyo Semicon Device
Sanyo Semicon Device


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