SC7461-100 查看數據表（PDF） - Silan Microelectronics

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产品描述 (功能)

生产厂家

SC7461-100

INFRARED REMOTE CONTROL TRANSMITTER

Silan Microelectronics 

Silan

Semiconductors

SC7461

When any of the double key combinations (Key No.20&21, Key No.20&22 and Key No.20&23) are pressed:

1).D5 is set to "1"

2).No Key Input Sequence is needed to perform the Double Key Operation

4.SC7461 DATA FRAME

A SC7461 Data Frame consists of 42 bits, namely: 13 bits Custom Code (C0~C12), 8 bits Key Data (D0~D7),

and their respective Inverse Codes. Please refer to the figure below.

C0 C1 C2 C3 C4 C5 C6 C8 C9 C10 C11 C12 C0 C1 C2 C3 C4 C5 C6 C7 C8 C10 C11 C12 D0 D1 D2 D3 D4 D5 D6 D7 D0 D1 D2 D3 D4 D5 D6 D7

Custom Code (13 bits)

Custom Code (13 bits)

Key Data (8 bits)

FIGURE 4. SC7461 DATA FRAME

Key Data ( 8 bits)

CUSTOM CODE

The Custom Code consists of 13 bits, namely: C0~C12. 7 bits--C6~C12-- are fixed by the on-chip ROM while 6

bits--C0~C5--are pin-settable. SC7461 provides up to 64 custom codes that may be selected externally without any

diode requirement. Please refer to the illustration below.

C0 C1 C2 C3 C4 C5 C6 C8 C9 C10 C11 C12

Pin-Settable

6 Bits

Mask ROM

7 Bits

FIGURE 5. SC7461 CUSTOM CODE

For example: Given the following setting,

V-

C5 6

C4 5

C3 24

C2 23

C1 22

C0 21

FIGURE 6. EXAMPLE CUSTOM CODE SETTING

then, the Custom Codes C0~C5 will have the following values:C0=0, C1=1, C2=1, C3=0, C4=0, C5=1.

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 2.2 2002-02-28.

6

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