三合微科股½有限公司
64 KEYS ENCODER
SM5025A/B
GENERAL DESCRIPTION
The SM5025A/B is an infrared remote control
encoder LSI utilizing CMOS technology.
The transmission code consists of "leader
pulse", "16 bit customer code", and "16 bit
data code". Using Micro-processors for
decoder,various applications can be realized.
FEATURE
* Low voltage operation ......V
DD
= 2.0 to 3.3V
* Low power consumtpion ..... I
DD < 1
A at
standby mode
* 64 function keys and 3 double action keys
* 128 + 6 function codes are available.
(Using SEL terminal)
* 65536 customer codes can be selected.
(Using external R, Diode-SM5025A or
internal MASK ROM-SM5025IRB)
* 24pin SOP or DIP
APPLICATIONS
1. Audio Remote Control
2. Video Remote Control
3. Consumer Product Remote Control
PIN ASSIGNMENTS
KI2
KI3
KI4
KI5
KI6
KI7
Dout
V
DD
SEL
OSCO
OSCI
V
SS
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
KI1
KI0
CODE
KI/O0
KI/O1
KI/O2
KI/O3
KI/O4
KI/O5
KI/O6
KI/O7
LED
KI2
KI3
KI4
KI5
KI6
KI7
Dout
V
DD
SEL
OSCO
OSCI
V
SS
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
KI1
KI0
CODE
KI/O0
KI/O1
KI/O2
KI/O3
KI/O4
KI/O5
KI/O6
KI/O7
LED
24 PIN DIP IN 300MIL
24 PIN SOP IN 300MIL
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