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Datasheet: SC2128A-C33D (Silan Microelectronics Joint-stock)

REMOTE FAN CONTROL IC

 

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Silan Microelectronics Joint-stock
Silan
Semiconductors
SC2128A
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2000.12.31
1
REMOTE FAN CONTROL IC
DESCRIPTION
The SC2128A is a high performance electronic fan controller LSI,
Speed control, off-timer, rhythm wind, sleep mode, head swing
and/or light control are all built into a single chip. Indicator LED
output, buzzer output, key control input, as well as remote control
decoding circuitry are all provided to build a full function electronic
fan with remote control capability having the highest performance
with the least external components. Pin assignment and application
circuit are optimized for easy PCB layout and cost saving for
electronic fan application.
FEATURES
* High performance CMOS Technology
* Low power consumption
* Optional independent light control
* 90 seconds cycle/6 seconds per step(off step 3 seconds) rhythm
wind pattern
* Built-in remote control decoding circuitry with mask option
custom code
* DIP or SO package(22 pin SO not available)
* Up to 3 dependent/independent swing-head/light output
* Available in 16,18,20,22,24 pin package for none, one set or two
sets of swing head and/or light control
* Four operation modes: ordinary, rhythm, ordinary sleep and
rhythm sleep.
* Memory start-up mode
* 2-3 seconds middle wind start-up(mask option)
APPLICATIONS
* Optimized for fan application
* Suitable for heater fan, cooling fan, and other home appliances
with remote control, timer and/or output level control
DIP-16
Silan
Semiconductors
SC2128A
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2000.12.31
2
PIN CONFIGURATION
SC2128A
SW2
REMOTE
OSCI
OSCO
VDD
OFF/MEMS/
BUZZ
SPEED
MODE
NC
COM
LED3
LED2
LED1
LIT
SO1
TIMER
SO2
ST
MI
LO
NC
VSS
LIGHT
SW1
20
pi
n
22
pi
n
D
IP
24
pi
n
S
O
16
pi
n
18
pi
n
20
pi
n
ORDERING INFORMATION
SC2128A- X X X X
S = Swing Head Output(s) Controlled by a Single Key (Mask
Option)
D = Two Swing Head Outputs Controlled by Double Keys (D can be
omitted)
0 = No Swing head Output
1 = 1 Swing head Output
2 = 2 Swing head Outputs
3 = 1 Swing head & Light Control Outputs
4 = 2 Swing head & Light Control Outputs
2 = 1/2/4 Hour, Non-Accumulated Timer
3 = 1/2/4 Hour, Accumulated Timer
4 = 0.5/1/2/4 Hour, Non-Accumulated
Timer
5 = 0.5/1/2/4 Hour, Accumulated Timer
8 = 1/2/4/8 Hour, Non-Accumulated Timer
9 = 1/2/4/8 Hour, Accumulated Timer
D = Non-Memory Start-up & Non-Middle Wind Start-up (Mask
Option)
C = Non-Memory Start-up & Middle Wind Start-up
L = Memory Start-up & Non-Middle Wind Start-up (Mask Option)
M = Memory Start-up & Middle Wind Start-up
Note: SC2128A Standard ICs: SC2128A-C31,
SC2128A-C51,
SC2128A-C80,
SC2128A-C81,
SC2128A-C82,
SC2128A-C83,
SC2128A-C92.
Other options are available upon request and require a minimum order
Quantity. Please contact Silan or your local agent for details.
Silan
Semiconductors
SC2128A
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2000.12.31
3
BLOCK DIAGRAM
OSC
TIMING
SPEED
CONTROL
FILTER
DECODER
KEY
SENSE
MEMORY
TIMER
LED
SCAN
SWING/
LIGHT
OSCO
OSCI
REMOTE
SPEED
TIMER
MODE
SW1
SW2
OFF/MEMS/
BUZZ
LIGHT
LIT
SO1
SO2
LED2
LED3
LED1
COM
ST
MI
LO
V
DD
V
SS
Silan
Semiconductors
SC2128A
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2000.12.31
4
ABSOLUTE MAXIMUM RATINGS
Characteristic
Symbol
Test Conditions
Value
Unit
Supply Voltage
V
DD
--
0 ~ 6.0
V
Input/Output Voltage
V
I
,V
O
V
DD
- V
SS
-0.3V ~ V
DD
+0.3V
V
Power Dissipation
P
D
V
DD
V
SS
= 5.0
500
mW
Operating Temperature
Topr
--
-20 ~ +70
C
Storage Temperature
Tstg
--
-40 ~ +125
C

ELECTRICAL CHARACTERISTICS
Parameter
Symbol
Test conditions
Min
Typ
Max
Unit
Supply Voltage
V
DD
--
4.0
5.0
6.0
V
Stand-by Current
Iq
V
DD
=5.0V, Oscillator stops.
All output floating,
All input fixed to V
DD
.
--
134
200
A
Input High Level Voltage
V
IH
--
V
DD
-1.5
--
--
V
Input Low Level Voltage
V
IL
--
--
--
1.5
V
Drive Current (COM)
I
OH
V
DD
=5.0V, Vo=3.5V
15
21.5
--
mA
Sink Current (COM)
I
OL
V
DD
=5.0V, Vo=1.5V
-12
-16.5
--
mA
Drive
Current
(LED1,
LED2,
LED3)
I
OH
V
DD
=5.0V, Vo=3.5V
5
6.5
--
mA
Sink Current (LED1, LED2, LED3)
I
OL
V
DD
=5.0V, Vo=1.5V
-4
-5.7
--
mA
Drive Current (OFF/BUZZ)
I
OH
V
DD
=5.0V, Vo=2.5V
1.5
3.0
--
mA
Sink Current (OFF/BUZZ)
I
OL
V
DD
=5.0V, Vo=2.5V
-2
-3.7
--
mA
Sink Current
(LO,MI,ST,SO1, SO2,LIT)
I
OL
V
DD
=5.0V, Vo=2.5V
-6.5
-16
--
mA
Oscillation frequency
f
OSC
--
--
32768
--
Hz
Key Press Duration
T
key
--
80
--
--
ms
Remote Input Bit Duration
T
bit
--
2.0
2.5
3.0
ms
Silan
Semiconductors
SC2128A
HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD
Rev: 1.0
2000.12.31
5
PIN DESCRIPTION
Pin No.
Symbol
16
PIN
18
PIN
20
PIN
Note1
20
PIN
Note2
22
PIN
Note3
24
PIN
Note4
I/O
Function
V
DD
5
5
5
6
6
6
--
Positive power supply
V
SS
2
2
2
3
3
3
--
Negative power supply
COM
10
12
14
13
15
17
O
Indicator LED common output
LED1
13
15
17
16
18
20
O
LED2
12
14
16
15
17
19
O
LED3
11
13
15
14
16
18
O
Indicator LED output pins
SPEED
7
7
7
8
8
8
I
SPEED key control input
MODE
8
8
8
9
9
9
I
MODE key control input
TIMER
9
11
13
12
14
16
I
TIMER key control input
SW1
--
9
9
10
10
10
I
Swing head 1 control key input
SW2
--
--
--
1
1
1
I
Swing head 2 control key input
OFF/MEMS/
BUZZ
6
6
6
7
7
7
I/O
OFF control key input, shared with
buzzer output
LIGHT
--
--
10
--
11
11
I
Light control key input
SO1
--
10
12
11
13
15
O
SO2
--
--
--
20
22
24
O
Swing head 1 output
Swing head 2 output
LIT
--
--
11
--
12
14
O
Light output
LO
16
18
20
19
21
23
O
MI
15
17
19
18
20
22
O
ST
14
16
18
17
19
21
O
Speed outputs
REMOTE
1
1
1
2
2
2
I
Remote control sensor input
OSCI
3
3
3
4
4
4
I
Oscillator input pin
OSCO
4
4
4
5
5
5
O
Oscillator output pin
NC
--
--
--
--
--
12
I
No connection
NC
--
--
--
--
--
13
I
No connection
Note1 : One swing head control plus light control type
Note2 : Two Sets of Swing Head Control Type
Note3 : DIP Package Only
Note4 : SO Package Only
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