LC7465M Infrared Remote Control Transmitter Preliminary Over
|
|
|
Top Searches for this datasheet
Ordering number:ENN *3590
LC7465M
Infrared Remote Control Transmitter
Preliminary Overview
LC7465M 64-key infrared remote controller transmitter that incorporates key-scanning, oscillator timing circuits on-chip, resulting very external component count. LC7465M generates function codes using function keys. output data format comprises maskprogrammed custom code, parity field, mask-programmed system code, product code, function code data check code. LC7465M operates from supply available 30-pin MFPs.
Package Dimensions
unit:mm 3073B-MFP30SD
[LC7465M]
15.2
external component count. function keys. function codes. Mask-programmable custom system codes. product codes. Output conforms Japan's Association Electric Home Appliances recommended standards infrared remote controls. On-chip input pull-down resistors. supply. 30-pin MFP.
(0.6)
Assignment
view
SANYO products described contained herein have specifications that handle applications that require extremely high levels reliability, such life-support systems, aircraft's control systems, other applications whose failure reasonably expected result serious physical and/or material damage. Consult with your SANYO representative nearest before using SANYO products described contained herein such applications. SANYO assumes responsibility equipment failures that result from using products values that exceed, even momentarily, rated values (such maximum ratings, operating condition ranges,or other parameters) listed products specifications SANYO products described contained herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
71901TN (KT)/2123JN No.3590-1/8
(2.25)
Features
SANYO MFP30SD
2.45max
0.65
0.25
10.5
LC7465M
Block Diagram
OSC1 OSC2
DIVIDER
TIMING GENERATOR
TEST
INPUT BUFFER DATA REGISTER
OUTPUT CONTROL
DIGIT TIMING GENERATOR
CODE REGISTER
FCS1
FCS2
FCS3
Description
Number Name Equivalent circuit Description
Keyswitch scanning inputs
TEST OSC1
driver output Supply voltage Test input. TEST should tied HIGH left open normal operation Ceramic oscillator input connection
OSC2 FCS1 FCS3
Ceramic oscillator output connection Ground connection. Should left open Function code mode select inputs Function code select inputs
Product code select inputs
Keyswitch scanning outputs
No.3590-2/8
LC7465M Specifications
Absolute Maximum Ratings 25°C
Parameter Maximum supply voltage Input voltage Output voltage Output current Allowable power dissipation Operating temperature Storage temperature Symbol Topr Tstg Ta85°C Conditions Ratings VSS- to+5.5 VSS- VDD+0.3
VSS- VDD+0.3
Unit
+125
Recommended Operating Conditions +85°C
Parameter Supply voltage range KI7, GCL, GCH, FCS1 FCS3 input high-level voltage KI7, GCL, GCH, FCS1 FCS3 input low-level voltage Oscillator frequency Symbol fOSC Conditions Ratings
0.7VDD
0.3VDD
Unit
Electrical Characteristics +85°C,
Parameter Operating supply current Standby supply current output high-level current output high-level voltage output low-level voltage GCL, FCS1 FCS3 input high-level current GCL, FCS1 FCS3 input low-level current input floating voltage input pull-down resistance Symbol Conditions pressed, load pressed, oscillator stopped VDD=2V, VOH=VDD- VDD=3V, VOH=VDD- IOH=- 0.1mA IOL=0.1mA VI=VDD VI=VSS
0.1VDD
Ratings
VDD-
Unit
No.3590-3/8
LC7465M Functional Description
Inputs eight-by-eight matrix formed with keyswitch scanning outputs keyswitch scanning inputs shown following figure. When held down, either normal abbreviated continuation code output continously, depending mask option selected. Normally, only pressed time. more than pressed, keys ignored output generated. However, when appropriate mask option selected, seven function codes generated holding down keys shown table
Table Function code generation
combination Function code
Output Data Configuration 48-bit output data configuration shown following figure. Note that data sent least-significant first.
16-bit custom code
4-bit parity
4-bit system code
8-bit product code
8-bit function code
8-bit data check code
Custom code 16-bit mask-programmable custom code C15) unique code registered with Association Electric Home Appliances. Parity bits four parity bits used error detection. Their value given following equation. Pn=Cn C(n+4) C(n+8) (n+12) where System code four-bit system code (SC0 SC3) mask-programmed into LC7465M during fabrication.
Product code eight-bit product code (GC0 GC7) consists mask-programmable bits bits that connecting each KO7. block diagram product code generator shown following figure. mask-programmable bits, shown zero.
No.3590-4/8
LC7465M
Tables show relationships between between respectively. Table product codes
Code generated
Function code eight-bit function code (FC0 FC7) determined number pressed FCS1 FCS3 inputs. When LOW, bits function codes keys determined FCS1 FCS3, respectively, shown tabel following figure.
Table product codes
Code generated
Table Function code generation when
FCS1 HIGH HIGH FCS2 FCS3 HIGH HIGH Function code
Note don't care press code function codes when LOW, FCS1 HIGH FCS3 shown following figure. example, when pressed, generated function code 2EH. When HIGH, function codes keys fixed, bits FC3, function codes keys determined FCS1 FCS3 shown table following figure.
No.3590-5/8
LC7465M
Table Function code generation when HIGH
FCS1 HIGH HIGH HIGH HIGH FCS2 HIGH HIGH HIGH HIGH FCS3 HIGH HIGH HIGH HIGH Function code
Note press code function codes when HIGH, FCS1 HIGH, FCS2 FCS3 HIGH shown following figure. example, when pressed, generated function code 9CH.
Note that when appropriate mask option selected, function codes 97H, A7H, B7H, C7H, D7H, also generated holding down keys Data check code eight-bit data check code (DC0 DC7) generated adding carry bits from system code product function code bits. This code used error detection. data check code calculated using following equation. DC=SC+GC0 GC3+GC4 GC7+FC0 FC3+FC4 example, when SC=0H, GC=0B1H, FC=35H DC=0H+1H+0BH+5H+3H=14H
No.3590-6/8
LC7465M Data Transmission Waveforms
Abbreviated transmission mode
Abbreviated mode detail
Normal transmission mode
Oscillator LC7465M contains self-biased CMOS inverter that used oscillator when connected ceramic resonator shown following figure. reduce power cunsumption, oscillator operates only when pressed.
No.3590-7/8
LC7465M
Typical Application
Specifications SANYO products described contained herein stipulate performance, characteristics, functions described products independent state, guarantees performance, characteristics, functions described products mounted customer's products equipment. verify symptoms states that cannot evaluated independent device, customer should always evaluate test devices mounted customer's products equipment. SANYO Electric Co., Ltd. strives supply high-quality high-reliability products. However, semiconductor products fail with some probability. possible that these probabilistic failures could give rise accidents events that could endanger human lives, that could give rise smoke fire, that could cause damage other property. When designing equipment, adopt safety measures that these kinds accidents events cannot occur. Such measures include limited protective circuits error prevention circuits safe design, redundant design, structural design. event that SANYO products(including technical data,services) described contained herein controlled under applicable local export control laws regulations, such products must expor without obtaining expor license from authorities concerned accordance with above law. part this publication reproduced transmitted form means, electronic mechanical, including photocopying recording, information storage retrieval system, otherwise, without prior written permission SANYO Electric Co., Ltd. information described contained herein subject change without notice product/technology improvement, etc. When designing equipment, refer "Delivery Specification" SANYO product that intend use. Information (including circuit diagrams circuit parameters) herein example only guaranteed volume production. SANYO believes information herein accurate reliable, guarantees made implied regarding infringements intellectual property rights other rights third parties.
This catalog provides information July, 2001. Specifications information herein subject change without notice.
No.3590-8/8
Other recent searches
SFF-8074i - SFF-8074i SFF-8074i Datasheet
SFF-8472 - SFF-8472 SFF-8472 Datasheet
S3X2R - S3X2R S3X2R Datasheet
INA106 - INA106 INA106 Datasheet
FMM5107MLT4E1 - FMM5107MLT4E1 FMM5107MLT4E1 Datasheet
BCM94712 - BCM94712 BCM94712 Datasheet
Privacy Policy | Disclaimer
© 2012 Datasheet Archive
