SC9308
AUDIO SYSTEM CONTROL MCU WITH ANALOG RADIO FUNCTION
DESCRIPTION
SC9308 is a SOC based on Silan’s 8-bit MCU SC65X for analog radio
DFR control with low voltage low power consumption. Built-in LCD
driver which can drive max. 4X14 segments display, 31 configurable
I/O ports and three 8-bit counters, two of which can be combined to
achieve 16 timing length; Built-in real time clock ensures the system
uninterrupted counting when it is in sleep state; 11 interrupt sources,
including four external interrupts, enabling the system to respond
quickly to internal or external events. Multi-mode optional serial
communication circuits greatly increase the system's scalability. Built-in
3.2MHz RC oscillator with external 75KHz oscillator can achieve the
perfect balance between power and speed. In high speed application, it
can extend external high frequency crystal through PC.4/5 pin,
maximum up to 6MHz.
* Widely applied in portable audio
control system with LCD.
QFP44-10 x10-0.8
APPLICATIONS
ORDERING INFORMATION
Part No.
SC9308
SC9308P
Package
COB44
QFP-44-10×10-0.8
Marking
No
SC9308P
FEATURES
* Memory
384-byte data memory
8K-byte program memory (OTP)
* I/O configuration
General-purpose I/O: 17 pins with pull up resistor;
SEG: also can be used as I/O.
* LCD controller/driver
Drive 7 words display max.
14 SEG x 4 COM
Display mode: duty, bias can be programmable
* 8-bit timer/counter T0/T1/T2
Timing time can be set by program
External events counting
Arbitrary clock frequency output
T0/T1 can be 16-bit counter
* Operating voltage range: 3.0~3.6V
* Clock source
External clock source: 75KHz Crystal
Built-in RC oscillator: 3.2MHz;
Extension Crystal: 2~6MHz(V
DD
>2.4V@4MHz)
* RTC
Year/month/day display
Provide BCD code data directly
Leap year auto adjust
Timing alarm
* Local oscillator frequency counting circuit
Local oscillator:
FM frequency range: 30MHz~150MHz
AM frequency range: 0.5MHz~30MHz
Counter: 16-bit, gate time 1/4/8ms
* Built-in voltage reference
V
REF
=1.23V±5%
HANGZHOU MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.1
2008.10.20
Page 1 of 17
SC9308
FEATURES
(Continued)
* A/D converter
4-channels with 8-bit conversion precision
External reference voltage selectable
Battery voltage monitor
* UART serial communication interface
2-line Asynchronous communication
Communication speed can be selected flexibly
Quick interrupt response
* Interrupt source
5 external interrupts, maskable
6 internal interrupts, maskable
BLOCK DIAGRAM
Note: V
PP
pin can be diplexed as RESET, when program the OTP memory, this pin is connected to 12V
voltage.
HANGZHOU MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.1
2008.10.20
Page 2 of 17
SC9308
ABSOLUTE MAXIMUM RATINGS
Characteristics
Supply Voltage
Input Voltage (All The I/O Pins)
Input Voltage (RESET)
Output Voltage
Output High Level Current
Output Low Level Current
Operating Ambient
Temperature
Storage Temperature
Symbol
Ratings
Unit
V
DD
V
I1
V
I1
V
O
I
OH
I
OL
T
amb
T
STG
-0.3~5.5
-0.3~V
DD
+0.3
-0.3~V
DD
+0.3
-0.3~V
DD
+0.3
-15
30
-20~+75
-40~+125
V
V
V
V
mA
mA
°C
°C
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, T
amb
=25
°C,V
DD
=3.3V)
Characteristics
Operating Voltage
Quiescent Current
Symbol
V
DD
I
Q1
I
Q2
I
DD
V
IH1
V
IH2
V
IL1
V
IL2
V
OH1
V
OH2
V
OL1
V
OL2
I
LIH
I
LIL
R
osc
R
L1
R
L2
R
H1
R
H2
OSC 75KHz stop, CPU Clk stop
OSC=75KHz,CPU Clk=75KHz Sleep
(Note 1)
OSC=75KHz,CPU Clk=3.2MHz,
all the modules start
PA/B/C
PE/F
PA/B/C
PE/F (Note2)
V
DD
=3V,PA/B/C,I
OH
=-1mA
V
DD
=3V,PE/F,I
OH
=-1mA
V
DD
=3V,PA/B/C,
IOH
=1mA
V
DD
=3V,PE/F,I
OH
=1mA
V
IN
=V
DD
, all the input pins
VIN=0V,all the input pins
V
DD
=3.0V,X
IN
=V
DD
, X
OUT
=0V
V
DD
=3.0V,V
IN
(FM/AM)=V
DD
V
DD
=3.0V,Test = V
DD
V
DD
=3.0V,V
IN(
=0,PA/B/C
V
DD
=3.0V,V
reset
= 0
3000
9
6000
10.5
83
25
67
2.8
2.5
0.2
0.2
1
1
9000
12
2.4
2.0
5.5
1.7
-
-
-
-
1.0
1.0
3.0
Test conditions
Min.
3.0
Typ.
3.3
Max.
3.6
1
Unit
V
μA
μA
mA
V
Operating Current
Input High Voltage
Input Low Voltage
V
Output High Voltage
Output Low Voltage
Input High Leakage Current
Input Low Leakage Current
75KHz Crystal Oscillator
Feedback Resistor
Pull-Down Resistor
V
V
μA
KΩ
KΩ
Pull-Up Resistor
Note
KΩ
1. Only 75KHz crystal oscillator and RTC are working.
2. CMOS input, when input voltage is 1.6V, the state of read port is uncertain.
HANGZHOU MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.1
2008.10.20
Page 3 of 17
SC9308
PIN CONFIGURATION
Seg2/PE.2
Seg1/PE.1
Seg0/PE.0
COM3
COM2
COM1
COM0
AVSS
33
Seg3/PE.3
Seg4/PE.4
Seg5/PE.5
Seg6/PE.6
Seg7/PE.7
Seg8/PF.0
Seg9/PF.1
Seg10/PF.2
Seg11/PF.3
Seg12/PF.4
Seg13/PF.5
32
31
30
29
28
27
26
25
24
23
22
PC.5/ADC5
21
PC.4/ADC4
20
V
DD
19
X
OUT
18
X
IN
34
35
36
37
38
39
40
41
42
43
44
1
PA.0/INT0
SC9308P
TEST
AM
FM
17
GND
16
RESET/VPP
15
PC.1/ADC1
14
PC.0/ADC0
13
PB.5/TCLO1/RXD
12
PB.4/TCLO0/TXD
2
PA.1/INT1
3
PA.2/INT2
4
PA.3/INT3
5
PA.4/TCL0
6
PA.5/TCL1
7
PA.6
8
PA.7/BUZ
9
PB.0/KS0
10
PB.1/KS1
11
PB.2/KS2
HANGZHOU MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.1
2008.10.20
Page 4 of 17
SC9308
PIN DESCRIPTION
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27~30
Pin Name
PA.0
PA.1
PA.2
PA.3
PA.4
PA.5
PA.6
PA.7
PB.0
PB.1
PB.2
PB.4
PB.5
PC.0
PC.1
RESET
GND
X
OUT
X
IN
V
DD
PC.4
PC.5
TEST
FM
AM
AVSS
COM0~COM3
Diplex pin
INT0
INT1
INT2
INT3
TCL0
TCL1
－
BUZ
KS0
KS1
KS2
TCLO0
TCLO1
ADC0
ADC1
V
PP
－
－
－
－
ADC4
I/O
ADC5
－
－
－
－
－
AD input
－
I
I
－
O
I/O
AD input
－
－
O
I
－
Universal input / output;
Configurable bit operation.
System reset pin
Digital ground
Low frequency oscillator output
Low frequency oscillator input
Digital power supply
Universal input / output; Configurable bit
operation.
PC4/5 can also be used as high speed crystal
interface;
Test enable pin, internal pull-down resistor
FM signal input
AM signal output
Analog ground
LCD display scan common signal
Segments scan signal output, maximum output
31~38
SEG0~7
PE.0~7
I/O
4-bit data each pin.
Drive LCD screen together with COM signal.
Can be as general-purpose input/output port.
Segments scan signal output, maximum output
4-bit data each pin.
39~44
SEG8~SEG13
PF.0~5
I/O
Drive LCD screen together with COM signal.
Can be as common input/output port.
(Refer to
LCD module
description)
I/O
Universal input / output;
8bit read/write;
Configurable bit operation.
I/O
Pin Descriptions
HANGZHOU MICROELECTRONICS CO.,LTD
Http://www.silan.com.cn
REV:1.1
2008.10.20
Page 5 of 17
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