SC5104S 查看數據表（PDF） - Silan Microelectronics
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SC5104S Datasheet PDF : 7 Pages
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SC5104
PIN DESCRIPTION
Pin no.
Symbol
1~2
C1, C2
3~7
8
9~11
12
13
14
15
16
K1~K5
VSS
K6~K8
OSCI
OSCO
LED
DOUT
VDD
I/O
Descriptions
Custom Code Option: Built In Pull-Up Resistor, Grounding Denote “1”,
I
Floating Denote “0”.
I Key Input Pins, Built In Pull-Up Resistor.
-- Negative Power Supply.
I Key Input Pins, Built In Pull-Up Resistor.
I 455kHz Oscillator Input Pin.
O 455kHz Oscillator Output Pin.
O LED Driver Output Indication
O Code Data Output(Contain 38kHz Carrier Signal)
-- Positive Power Supply.
FUNCTION DESCRIPTIONS
1. Key inputs K1~K8
In static mode, key inputs K1~K8 are set as high level through pull-up resistor and there is no current flows in
circuit. When one key is pressed, corresponding code is transmitted.
2. Customer code C1, C2
In static mode, C1 and C2 are internal pulled as high level. Four different customer code combination are
available by the two bits. For these two bits, “1” indicates corresponding pin is grounded while “0” indicates
floating or connected to VDD.
3. Code format
A frame consists of:
1） Lead code——110
2） Customer code——C1C2
3） Instruction code——7 bits key code (see SC5104 key code table for details)
4）Logic 0: 1/4T high level, 3/4T low level; Logic 1: 3/4T high level, 1/4T Low level.
5）Code cyclic time T=1.6879ms
6）Intern\val between two frame: 4T
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
REV:1.2 2009.05.05
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