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PDF LC7461M Data sheet ( Hoja de datos )
| Número de pieza | LC7461M | |
| Descripción | Infrared Remote Control Transmitter IC | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LC7461M (archivo pdf) en la parte inferior de esta página. Total 7 Páginas | ||
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Ordering number: EN2119D
CMOS LSI
LC7461M
Infrared Remote Control Transmitter IC
Functions
. 32%3 function keys
. 13-bit custom codes
. Operating supply voltage range VDD = 1.8 to 3.6 V
. Supply current at the standby mode IDD = 1 µA or less
. Double-press operation keys (no priority given)
. On-chip oscillator (ceramic resonator : connected externally)
Package Dimensions
unit : mm
3045B-MFP24
[LC7461M]
Features
. The custom code consists of 7 bits to be fixed by the
on-chip ROM and 6 bits being pin-settable. Sixty-four
. custom codes may be selected externally (no diode required).
Minimum number of external parts required
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Input voltage
Output voltage
Output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VDD max
VIN
VOUT
IOUT
Pd max
Topr
Tstg
Conditions
VDD
Each input pin
Each output pin
OUT
Ta % 85°C
Allowable Operating Conditions at Ta = 25°C
Parameter
Supply voltage
Input high-level voltage
Input low-level voltage
Oscillation frequency
Symbol
VDD
VIH
VIL
fOSC
Pin Name
VDD
KI0 to KI3,
C0 to C5
KI0 to KI3,
C0 to C5
Conditions
fOSC = 455 kHz
SANYO : MFP24
Ratings
VSS–0.3 to +5.5
VSS–0.3 to VDD+0.3
VSS–0.3 to VDD+0.3
–35
150
–40 to +85
–50 to +125
Unit
V
V
V
mA
mW
°C
°C
min
1.8
0.7 VDD
typ
3.0
max
3.6
VDD
Unit
V
V
VSS 0.3VDD V
400 455
500 kHz
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
O3096HA(II)/7058YT/6036KI,TS(KOTO) No.2119-1/7
1 page  
LC7461M
(a) Custom code
The custom code, which consists of 13 bits (C0 to C12) in all, is used to distinguish between receiving sets.
Pin-selectable
6 bits
Mask ROM
7 bits
C6 to C12 are fixed by the mask ROM and C0 to C5 are pin-settable.
In this example C0 to C5 are
set as follows:
C0 C1 C2 C3 C4 C5
011001
The custom codes are controlled by Sanyo to avoid duplication.
(b) Key data
KEY No. D0 D1 D2 D3 D4 D5 D6 D7
0 00000000
1 10000000
2 01000000
3 11000000
4 00100000
5... 1... 0... 1... 0... 0... 0... 0... 0...
28 0 0 1 1 1 0 0 0
29 1 0 1 1 1 0 0 0
30 0 1 1 1 1 0 0 0
31 1 1 1 1 1 0 0 0
Multi-press
KEY No. D0 D1 D2 D3 D4 D5 D6
20, 21 1 0 1 0 1 1 0
20, 22 0 1 1 0 1 1 0
20, 23 1 1 1 0 1 1 0
. D6, D7 may be preset to ‘‘0’’,‘‘1’’ beforehand (mask
option).
D7
0
0
0
When multi-press of key No.20 and one of key No.21, 22, 23 is done, multi-bit D5 will be set to ‘‘1’’, with no priority given
in key entry.
(H: Key-ON state)
Key 20 Keys 20, 21 Key 21 Transmit
data
multi-press data
stop
transmit data transmit transmit
Key 22
data
transmit
Keys 20, 22
multi-press data
transmit
No.2119-5/7
5 Page | ||
| Páginas | Total 7 Páginas | |
| PDF Descargar | [ Datasheet LC7461M.PDF ] | |
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