Sanyo LC7465M Specifications

Ordering number:ENN *3590

CMOS IC

LC7465M

Infrared Remote Control Transmitter IC

Preliminary

Overview

The LC7465M is a 64-key infrared remote controller transmitter IC that incorporates key-scanning, oscillator and timing circuits on-chip, resulting in a very low external component count.

The LC7465M generates 256 function codes using the 64 function keys. The output data format comprises the maskprogrammed custom code, the parity field, the mask-pro- grammed system code, the product code, the function code and the data check code.

The LC7465M operates from a 2.0 to 3.6 V supply and is available in 30-pin MFPs.

Features

•Low external component count.

•64 function keys.

•256 function codes.

•Mask-programmable custom and system codes.

•64 product codes.

•Output conforms to Japan’s Association for Electric Home Appliances recommended standards for infrared remote controls.

•On-chip input pull-down resistors.

•2.0 to 3.6 V supply.

•30-pin MFP.

Package Dimensions

unit:mm

3073B-MFP30SD

[LC7465M]

15.2

30

16

7.9

9.2

10.5

1	15		0.25	0.65
		0.1	2.45max
		(2.25)
0.4	1.0	(0.6)

SANYO : MFP30SD

Pin Assignment

Top view

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

71901TN (KT)/2123JN No.3590–1/8

LC7465M

Block Diagram

OSC1

VDD

OSC2

OSC

DIVIDER

TIMING

VSS

GENERATOR

TEST

NC

KI0

KEY

OUTPUT

NC

KI1

KI2

KEY

DATA

CONTROL

REM

KI3

INPUT

REGISTER

KI4

BUFFER

KI5

KI6

KI7

KEY DIGIT

GC CODE

TIMING GENERATOR

REGISTER

KO0 KO1

KO2 KO3 KO4

KO5 KO6

KO7

SEL

FCS1

FCS2 FCS3

GCL

GCH

Pin Description

Number

Name

Equivalent circuit

Description

1 to 8

KI0 to KI7

Keyswitch scanning inputs

9

REM

LED driver output

10

VDD

Supply voltage

11

Test input.

should be tied HIGH or left open for normal operation

TEST

TEST

12

OSC1

Ceramic oscillator input connection

13

OSC2

Ceramic oscillator output connection

14

VSS

Ground

15, 16

NC

No connection. Should be left open

17

SEL

Function code mode select inputs

18 to 20

FCS1 to FCS3

Function code select inputs

21

GCH

Product code select inputs

22

GCL

23 to 30

KO0 to KO7

Keyswitch scanning outputs

No.3590–2/8

LC7465M

Specifications

Absolute Maximum Ratings at Ta = 25˚C

Parameter	Symbol	Conditions	Ratings	Unit
Maximum supply voltage	VDD max		VSS– 0.3 to+5.5	V
Input voltage	VI		VSS– 0.3 to VDD+0.3	V
Output voltage	VO		VSS– 0.3 to VDD+0.3	V
Output current	IO		– 35	mA
Allowable power dissipation	Pd max	Ta≤85˚C	150	mW
Operating temperature	Topr		– 40 to +85	˚C
Storage temperature	Tstg		– 50 to +125	˚C

Recommended Operating Conditions at Ta = –40 to +85˚C

Parameter	Symbol	Conditions		Ratings		Unit
			min	typ	max
Supply voltage range	VDD		2.0	3.0	3.6	V
KI0 to KI7, GCL, GCH, FCS1 to FCS3 and SEL	VIH		0.7VDD		VDD	V
input high-level voltage
KI0 to KI7, GCL, GCH, FCS1 to FCS3 and SEL	VIL		VSS		0.3VDD	V
input low-level voltage
Oscillator frequency	fOSC		433	455	477	kHz

Electrical Characteristics at Ta = –40 to +85˚C, V = 2.0 to 3.6 V
		DD
Parameter	Symbol	Conditions		Ratings		Unit
			min	typ	max
Operating supply current	IDD	Key pressed, no load			1	mA
Standby supply current	IDS	No key pressed, oscillator stopped			1	µA
REM output high-level current	IOH	VDD=2V, VOH=VDD– 1V		– 2.5		mA
		VDD=3V, VOH=VDD– 1V		– 11
KO0 to KO7 output high-level voltage	VOH	IOH=– 0.1mA	VDD– 0.3			V
KO0 to KO7 and REM output low-level voltage	VOL	IOL=0.1mA			0.3	V
GCL, GCH and FCS1 to FCS3 input high-level	IIH	VI=VDD			1	µA
current
GCL, GCH and FCS1 to FCS3 input low-level	IIL	VI=VSS	– 1			µA
current
KI0 to KI7 input floating voltage	VIF				0.1VDD	V
KI0 to KI7 input pull-down resistance	RIN		75	100	125	kΩ

No.3590–3/8