三合微科股�½有限公司
S
AM
H
OP
Microelectronics Corp.
SM5221-001/002
32 KEYS ENCODER
GENERAL DESCRIPTION
The SM5221-001/002 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.
FEATURES
* Low voltage operation ...... VDD=2.0 to 3.3V
* Low power consumption ...... IDD < 1
μ
A at
standby mode
* 32 function keys and 3 double action keys
* 64 + 6 function codes are available.
(Using SEL terminal)
* 65536 customer codes can be selected.
(Using external R, Diode-SM5024A or internal
MASK ROM-SM5024B)
* 20pin SOP or DIP
APPLICATIONS
* Audio Remote Control
* Video Remote Control
* Consumer Product Remote Control
PIN ASSIGNMENTS (TOP VIEW)
KI0
KI1
KI2
KI3
Dout
V
DD
SEL
OSCO
OSCI
V
SS
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
CODE
KI/O0
KI/O1
KI/O2
KI/O3
KI/O4
KI/O5
KI/O6
KI/O7
LED
KI0
KI1
KI2
KI3
Dout
V
DD
SEL
OSCO
OSCI
V
SS
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
CODE
KI/O0
KI/O1
KI/O2
KI/O3
KI/O4
KI/O5
KI/O6
KI/O7
LED
20 PIN DIP IN 300MIL
20 PIN SOP IN 300MIL
Page 1
V.2.0 Mar 8,2002
SAMHOP [ SAMHOP MICROELECTRONICS CORP. ]
