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Sanyo Electric Components Datasheet

LC75742W Datasheet

1/2 Duty VFD Driver with Key Input Function

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Ordering number : EN6142
CMOS IC
LC75742E, 75742W
1/2 Duty VFD Driver with Key Input Function
Overview
The LC75742E and LC75742W are 1/2 duty VFD drivers
that can be used for electronic tuning frequency display
and other applications under the control of a micro-
controller. These products can directly drive VFDs with
up to 82 segments. It also includes a key scan circuit and
can support input from up to 30 keys and can thus reduce
the number of lines to the front panel in application
systems.
Features
• Key input from up to 30 keys
(Key scans are only performed when keys are pressed.)
• 82 segment outputs.
• Noise reduction circuits are built into the output drivers.
• Serial data I/O supports CCB format communication
with the system controller.
• Dimmer and sleep mode can be controlled by serial data
input.
• High generality since display data is displayed without
the intervention of a decoder.
• All segments can be turned off with the BLK pin.
Package Dimensions
unit: mm
3151-QFP64E
1.0
48
49
[LC75742E]
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 (QIP64E)
1.25
48
49
[LC75742W]
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
43099TH (OT) No. 6142-1/18


Sanyo Electric Components Datasheet

LC75742W Datasheet

1/2 Duty VFD Driver with Key Input Function

No Preview Available !

LC75742E, LC75742W
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
VFL max
VIN1
VIN2
VOUT1
VOUT2
VOUT3
IOUT1
IOUT2
IOUT3
Pd max
Topr
Tstg
Conditions
VDD
VFL
DI, CL, CE, BLK
OSCI, KI1 to KI5
S1 to S41, G1, G2
OSCO, KS1 to KS6
DO
S1 to S41
G1, G2
KS1 to KS6
Ta = 85°C (LC75742E)
Ta = 85°C (LC75742W)
Ratings
–0.3 to +6.5
–0.3 to +21.0
–0.3 to +6.5
–0.3 to VDD +0.3
–0.3 to VFL +0.3
–0.3 to VDD +0.3
–0.3 to +6.5
6
60
1
400
300
–40 to +85
–50 to +150
Unit
V
V
V
V
V
V
V
mA
mA
mA
mW
mW
°C
°C
Allowable Operating Ranges at Ta = –40 to +85°C, VDD = 4.5 to 5.5 V, VSS = 0 V
Parameter
Symbol
Conditions
Supply voltage
High-level input voltage
Low-level input voltage
Guaranteed oscillator frequency range
Recommended external resistor value
Recommended external capacitor value
Clock low-level pulse width
Clock high-level pulse width
Data setup time
Data hold time
CE wait time
CE setup time
CE hold time
DO output delay time
DO rise time
BLK switching time
VDD
VFL
VIH1
VIH2
VIH3
VIL
fOSC
ROSC
COSC
tøL
tøH
tds
tdh
tcp
tcs
tch
tdc
tdr
tc
VDD
VFL
DI, CL, CE, BLK
OSCI
KI1 to KI5
DI, CL, CE, BLK, OSCI, KI1 to KI5
OSCI, OSCO
OSCI, OSCO
OSCI, OSCO
CL : See figure 1.
CL : See figure 1.
DI, CL : See figure 1.
DI, CL : See figure 1.
CE, CL : See figure 1.
CE, CL : See figure 1.
CE, CL : See figure 1.
DO: RPU = 4.7 k, CL = 10 pF*: See figure 1.
DO: RPU = 4.7 k, CL = 10 pF*: See figure 1.
BLK, CE : See figure 4.
min
4.5
8
0.8 VDD
0.8 VDD
0.6 VDD
0
0.4
4.7
22
160
160
160
160
160
160
160
10
Ratings
typ
5.0
12
1.6
20
47
Note: Since DO is an open-drain output, these values will vary with the pull-up resistance RPU and the load capacitance CL.
max
5.5
18
5.5
VDD
VDD
0.2 VDD
3.0
100
100
1.5
1.5
Unit
V
V
V
V
V
V
MHz
k
pF
ns
ns
ns
ns
ns
ns
ns
µs
µs
µs
No. 6142-2/18


Part Number LC75742W
Description 1/2 Duty VFD Driver with Key Input Function
Maker Sanyo Semicon Device
Total Page 18 Pages
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