SC9351
AUDIO SYSTEM CONTROL MCU
DESCRIPTION
SC9351 is an 8051-based MCU with built-in 64KByte FLASH, 8KByte
2
RAM and abundant on-chip periphery modules including I C, UART, SPI,
ADC and RTC, etc.
FEATURES
* In system programming(ISP)
* 2.7-3.6V supply voltage for chip core, together with internal or
external LDO.
* 8051 architecture compatible with MCS51 instructions
2~4 clock cycles for per instruction
Dual data pointer to improve the data processing efficiency
* Built-in 64Kx8 FLASH programmed by on-chip program or
programmer for program memory or data memory
* Data memory IDATA : 256Byte(compatible with 8051) +
64Byte(save data when power down)
XDATA: 8Kbyte external data memory, low 4K of which can be
program memory for Flash programming
* Integrate RTC providing calendar, clock, auto leap-year adjustment,
timing alarm clock and clock adjustment.
Built-in 8-bit timer for max. 256 seconds long time timing.
* Maximum 40 general IO pins
* Four 8-bit timers T0/T1/T2/T3, where T0/T1 is the same as that of
8051; T2 supports PWM function
* Extended interrupt module with four external interrupts
* Two UART interfaces.
* One SPI interface.
* 3-channel 8-bit AD converter.
2
* One I C interface
LQFP-64-10x10-0.5
APPLICATIONS
* Desktop audio, car audio
* Various operating modes with low power dissipation
ORDERING INFORMATION
Part No.
SC9351
Resource list
Part No.
SC9351
Timer
4
ADC
channel
3
SPI
1
UART
2
I
2
C
1
IO Qty.
Note1
40
External
interrupt
4
Package
LQFP-64-10 x 10-0.5
Marking
SC9351
Note 1: three pins of P7 port are shared with debug ports.
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: //www.silan.com.cn
REV:1.0
2009.02.16
Page 1 of 19
SC9351
BLOCK DIAGRAM
AN0-AN2
P10.1
P10.0
P9.7
P9.6
P9.5
P9.4
P9.3
P9.2
P9.1
VDDA
LOWDET
LDO_EN
XTOUT
VDD2o5
XOUT
XTIN
VDD
nDBG
VSSA
nTST
VSS
P7.5
ABSOLUTE MAXIMUM RATING
Characteristics
Power supply
Input voltage
Storage temperature
Operating
temperature
ESD
Symbol
V
DD
V
IN
T
STG
T
OPR
V
esd
Ratings
-0.3~+5.0
-0.3~V
DD
+0.3
-65~+150
-40~+85
2
Unit
V
V
°C
°C
KV
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: //www.silan.com.cn
P7.6
P7.7
XIN
REV:1.0
2009.02.16
Page 2 of 19
SC9351
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, V
CC
=3.3V, T
amb
=25°C)
Characteristics
Power Supply
I/O Pull-Up Resistor
Operating Frequency
RTC Input Frequency
High-Frequency
Operating Current1
High-Frequency
Operating Current2
Symbol
V
DD
R
pu
F
CPU
F
RTC
-
-
-
-
F
CPU
= 12MHz (Other modules are
I
OPH1
closed except for MCU and SRAM is
used as program memory.)
F
CPU
= 12MHz (Other modules are
I
OPH2
closed except for MCU and FLASH is
used as program memory.)
F
CPU
= 75KHz (Other modules are
closed except for MCU and RTC is
Low-Frequency
Operating Current1
I
OPL1
powered by external LDO, and
SRAM is used as program memory
(LDO power dissipation is not
included))
F
CPU
= 75KHz (Other modules are
Low-Frequency
Operating Current2
I
OPL2
closed except for MCU and RTC is
powered by internal LDO, and SRAM
is used as program memory)
F
CPU
= 75KHz (Other modules are
Low-Frequency
Operating Current3
I
OPL3
closed except for MCU and RTC is
powered
by
internal
LDO,
and
FLASH is used as program memory)
F
CPU
= 75KHz (MCU is in sleep
mode, other modules are closed
Sleep Current 1
I
s1
except for RTC powered by external
LDO, and SRAM is used as program
memory (LDO power dissipation is
not included) )
F
CPU
= 75KHz (MCU is in sleep
mode, other modules are closed
Sleep Current 2
I
s2
except for RTC powered by internal
LDO, and SRAM is used as program
memory)
--
360
--
μA
--
40
--
μA
--
1.5
--
mA
--
400
--
μA
--
70
--
μA
--
8
--
mA
--
7.5
--
mA
--
Test conditions
Min.
2.7
--
Typ.
3.3
50
12
75K
Max.
3.6
Unit
V
KΩ
MHz
Hz
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: //www.silan.com.cn
REV:1.0
2009.02.16
Page 3 of 19
SC9351
Characteristics
Symbol
Test conditions
F
CPU
= 12MHz (MCU is in sleep
mode, other modules are closed
Sleep Current 3
I
s3
except for RTC powered by internal
LDO, and SRAM or FLASH can both
be program memory)
Close main oscillator, LDO and other
Quiescent Current
High-Level Output
Current (Except For Port
P10)
Low-Level Output
Current(Except For Port
P10)
Low-Level Output
Current (Port P10)
Input High Voltage
Input High Voltage
Input High Voltage
Input Low Voltage
Input Low Voltage
Input Low Voltage
I
OL
V
IH
V
IH
V
IH
V
IL
V
IL
V
IL
V
OL
= 0.3V
P0/P1/P2/P9
P5/P6/P7
P10
P0/P1/P2/P9
P5/P6/P7
P10
-
2.0
1.5
1.5
9.0
-
-
-
-
-
-
0.7
0.8
0.8
-
-
mA
V
V
V
V
V
V
I
OL
V
OL
= 0.3V
-
4.0
-
mA
I
OH
V
OH
= 3V
-
-3.0
-
mA
I
Q
modules except for RTC working at
75K clock frequency.
-
14
--
μA
--
3.5
--
mA
Min.
Typ.
Max.
Unit
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: //www.silan.com.cn
REV:1.0
2009.02.16
Page 4 of 19
SC9351
PIN CONFIGURATION
PIN DESCRIPTION
Pin No.
1
2
3
4~6
7
8
9
10
11
12
13
Pin Name
P2.2
VSSA
VDDA
AN0~AN2
V
SS
V
DD
XTIN
XTOUT
nTST
nRST
P2.4/INT0
--
--
I
O
I
I
I/O
I/O
I/O
--
--
interrupt InT2
Ground of ADC
Power supply of ADC
Input channel 0~2 of ADC
Digital ground
Power supply of IO, RTC and 64Byte RAM
75KHz oscillator input pin
75KHz oscillator output pin
Test enable pin internally connected with pull-up resistor; High level is
connected for normal use.
Reset pin internally connected with pull-up resistor; low level reset.
General I/O pin; alternate function is external interrupt input INT0
Pin Function
In extended bus mode, output notDMRD; alternate function is external
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: //www.silan.com.cn
REV:1.0
2009.02.16
Page 5 of 19
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