PCAP Touch Screen
Datasheet SiS9527
Projected Capacitive Touch Micro Processor

Pin Assignment

SiS9527 Top Side View

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2021
ARX30RX32RX35RX38RX42RX44RX49RX53RX57RX59RX64RX67RX71RX75RX79RX81RX84RX86RX89RX92A
BRX28RX29RX31RX34RX37RX40RX45RX50RX54RX58RX60RX65RX68RX72RX76RX80RX83RX87RX90RX91RX93B
CRX26RX25RX27RX33RX36RX39RX43RX48RX52RX56RX61RX66RX70RX74RX78RX82RX85RX88RX94RX96RX95C
DRX22RX23RX24RX41RX46RX47RX51RX55RX62RX63RX69RX73RX77AVSSAVSSD
ERX19RX20RX21TP28_1TP28_2E
FRX16RX17RX18OVDD33AVDD33F
GRX13RX14RX15USB-USB+G
HRX10RX11RX12TP12OSCINH
JRX7RX8RX9CLKCOUTJ
KRX6RX5RX4A5A6K
LRX3RX2RX1A4 /CID4A3 /CID3L
MDVSSDVSSDVSSA1 /CID1A2 /CID2NCM
NTP18SPI MOSINCA0 /CID0OE_2N
PSPI MSCKSPI MISONCOE_1HVRSTNP
RSPI MSCS0SPI MSCS1SPI MSCS2 /UART_RXR_DINRESET#R
TI2C_DAI2C_CLKINTHVDDCHVDDT
UGPIO0GPIO1GPIO2 /TP_ID0C4NC4PU
VGPIO3 /TP_ID1GPIO4GPIO5 /UART_TXTX21TX17TX13TX9C3NC3PV
WL VS SL V VS SL VS STX52TX49TX46TX43TX40TX37TX34TX31TX28TX25TX22TX18TX14TX10TX6TX3C2NC2PW
YTX59TX57TX55TX53TX50TX47TX44TX41TX38TX35TX32TX29TX26TX23TX19TX15TX1 1TX7TX4TX1C1PY
AATX60TX58TX56TX54TX51TX48TX45TX42TX39TX36TX33TX30TX27TX24TX20TX16TX12TX8TX5TX2C1NAA
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General Description

With accumulated PC-based chipset experiences and innovative technologies, SiS has been delivering the leading technology and better performance platforms over the past decades, and continuing offering the mature and supreme touch microprocessor. SiS9527 is developed to provide an optimal touch screen solution to OEM and ODM vendors for the new generation platform applications.
SiS9527, a superior touch panel microprocessor family integrated with a 32bit RISC processor, a 12bits Analog-to-Digital converter (ADC) with better resolution and higher sampling rate, supporting up to 60 pins of TX, and up to 96 pins of RX for up to 27” projected capacitive touch sensor, a USB or I2C interface for communicating with host system, a watchdog timer and an event timer, 128KB Flash as well as an embedded SPI port for debug purpose. In addition, SiS9527 integrated, LDO and minimizes the external passive components. To deliver the most cost-effective touch solution, it supports single layer and multi-touch TP design as well as other TP design styles. Referring to Figure1, it’s the SiS9527 system block diagram.
Moreover, SiS9527 implements various noise filter schemes to handle the wide-range coupling noise by hand/fingers operation on LCD/LED panel as well as touch algorithm. With SiS touch microprocessor architecture and its leading touch algorithm technology, SiS9527 can automatically adjust and compensate the sensing methodology to ensure the good touch quality, sensitivity and response-time under various changing humidity, temperature and other environmental factors. As well as MP tools, it can help customers reduce the design cycle time and make product time-to-market.

Figure 1 SiS9527 Touch System Diagram

Features

  • Mutual Capacitive Sensing Technology
  • High Performance Driving and Sensing Engine
    • 12bit ADC
    • SiS9527 AFE with up to 96 RX Channels and up to 60 TX Channels
    • Frame-based Hardware Sensing Engine
    • Dynamic Report Rate: TBD
    • Internal low power OSC
    • Build-in LDO for Sensing Engine
  • RF immunity and Power Noise Immunity
  • 10 Fingers Multi-Touch Support
  • Host Interface
    • Support I2C-compatible slave Interface
    • Support USB -Operation Core/IO Voltage
    • OVDD33 and AVDD33 Voltage: 3.3V
    • I2C Interface I/O Voltage: 1.8V & 3.3V
  • Palm Rejection
  • Water proof
  • Green Package
    • RoHS compliance & Halogen Free, 215pin BGA 11mmx11mm

Pin Description

Sensor Interface

Pin NamePin No.Pin NamePin No.Pin AttrDescription
TX1Y20TX31W11OutDrive signal output pin
TX2AA20TX32Y11
TX3W19TX33AA11
TX4Y19TX34W10
TX5AA19TX35Y10
TX6W18TX36AA10
TX7Y18TX37W9
TX8AA18TX38Y9
TX9V17TX39AA9
TX10W17TX40W8
TX11Y17TX41Y8
TX12AA17TX42AA8
TX13V16TX43W7
TX14W16TX44Y7
TX15Y16TX45AA7
TX16AA16TX46W6
TX17V15TX47Y6
TX18W15TX48AA6
TX19Y15TX49W5
TX20AA15TX50Y5
TX21V14TX51AA5
TX22W14TX52W4
TX23Y14TX53Y4
TX24AA14TX54AA4
TX25W13TX55Y3
TX26Y13TX56AA3
TX27AA13TX57Y2
TX28W12TX58AA2
TX29Y12TX59Y1
TX30AA12TX60AA1

Pin NamePin No.Pin NamePin No.Pin NamePin No.Pin AttrDescription
RX1L3RX33C4RX65B12InSense signal input pin
RX2L2RX34B4RX66C12
RX3L1RX35A4RX67A13
RX4K3RX36C5RX68B13
RX5K2RX37B5RX69D13
RX6K1RX38A5RX70C13
RX7J1RX39C6RX71A14
RX8J2RX40B6RX72B14
RX9J3RX41D6RX73D14
RX10H1RX42A6RX74C14
RX11H2RX43C7RX75A15
RX12H3RX44A7RX76B15
RX13G1RX45B7RX77D15
RX14G2RX46D7RX78C15
RX15G3RX47D8RX79A16
RX16F1RX48C8RX80B16
RX17F2RX49A8RX81A17
RX18F3RX50B8RX82C16
RX19E1RX51D9RX83B17
RX20E2RX52C9RX84A18
RX21E3RX53A9RX85C17
RX22D1RX54B9RX86A19
RX23D2RX55D10RX87B18
RX24D3RX56C10RX88C18
RX25C2RX57A10RX89A20
RX26C1RX58B10RX90B19
RX27C3RX59A11RX91B20
RX28B1RX60B11RX92A21
RX29B2RX61C11RX93B21
RX30A2RX62D11RX94C19
RX31B3RX63D12RX95C21
RX32A3TX60AA1RX96C20

USB Interface

Pin NamePin No.Pin AttrDescription
USB-G20In/OutUSB Data-
USB+G21InOutUSB Data+

I2C Interface

Pin NamePin No.Pin AttrDescription
INTT3OutUSB Data-Interrupt pin sending request to HOST
I2C_CLKT2In/OutI2C serial clock input/output
I2C_DAT1In/OutI2C seral data input/output

GPIO Interface

Pin NamePin No.Pin AttrDescription
GPIO0U1In/OutGeneral purpose input/output port
GPIO1U2In/OutGeneral purpose input/output port
GPIO2/TP_ID0U3In/OutGeneral purpose input/output port
GPIO3/TP_ID1V1In/OutGeneral purpose input/output port
GPIO4/UART_RXV2In/OutGeneral purpose input/output port
GPIO5/UART_TXV3In/OUTGeneral purpose input/output port

Pin Description

Pin NamePin No.Pin AttrDescription
A0/CID0N20In/OutChip ID Pin / Channel select address
A1/CID1M19In/OutChip ID Pin / Channel select address
A2/CID2M20In/OutChip ID Pin / Channel select address
A3/CID3L21In/OutChip ID Pin / Channel select address
A4/CID4L20In/OutChip ID Pin / Channel select address
A5K20OutOutput channel select address
A6K21OutOutput channel select address
OE_1P20OutOutput enable
OE_2N22OutOutput enable
R_DINR20
COUTJ21
CLKJ20OutChanel select clock
HVRSTNP21Out
RESET#R21InLow activ power on reset signal

Power and Ground Signals

Pin NamePin No.Pin AttrDescription
C1PY21PWRConnect to external capacitor
C1NAA21PWRConnect to external capacitor
C2PW21PWRConnect to external capacitor
C2NW20PWRConnect to external capacitor
C3PV21PWRConnect to external capacitor
C3NV20PWRConnect to external capacitor
C4PU21PWRConnect to external capacitor
C4NU20PWRConnect to external capacitor
HVDDT20PWRConnect to external capacitor
CHVDDT21PWRConnect to external capacitor
DVSSM1,M2,M3Digital 0VGround
TP18N1MAIN
OVDD33F20Digital 3.3VMAIN
TP12H20MAIN
SPIMSCS0R1InSPI slave chip select
SPIMSCS1R2InSPI slave chip select
SPIMSCS2R3InSPI slave chip select
SPIMISOP2OutSPI Slave mode data output
SPIMOSIN2InSPI Slave mode data input
SPIMSCKP1InSPI serial clock input
LVSSW1,W2,W3Digital 0VGround
AVSSD20,D21Analog 0VGround
TP28_1E20analog powerMAIN
TP28_2E21analog powerMAIN
AVDD33F21Analog 3.3VMAIN
OSCINH21InOscillator input
NCN3,P3--

Electrical Characteristics

Absolute Maximum Ratings

Table 1 shows SIS9527 stress ratings only. Extended exposure to the maximum ratings might degrade device reliability. Although SIS9527 has protective circuitry to resist damage from electrostatic discharge (ESD), precautions should always be taken to avoid high voltage or electric field.

Table 1 Absolute Maximum Ratings
SymbolParameterMinMaxUnitNotes
TstorageStorage Temperature-4090°C
TaAmbient Operating Temperature-4085°C
OVDD33 AVDD333.3V Supply Voltage-0.33.6V

DC Characteristics

OVDD33 = 3.3V AVDD33 = 3.3V AVSS = LVSS = DVSS = GND = 0V

Table 2 DC Characteristics of I/O Interface
For 3.3V I/O
SymbolParameterMinTypMax
Vil (V)Input low voltage0.8
Vih (V)Input high voltage2.0
Vol (V)Output low voltage0.4
Voh (V)Output high voltageVDDIO-0.4
Iil (uA)Input leakage current-10+10
Ihiz (uA)Output tri-state leakage current-10+10
Pull-up (kohm)Internal Pull-up resistor39
Pull-down (kohm)Internal Pull-down resistor39

Packing Information

Table 3 Packing Info
Not take off the seal ( Al Bag )Take off the seal ( Al Bag )
Preserved conditionsStorage lifeGeneral Preserved conditionsStorage life
TemperatureHumidityTemperatureHumidity
0~40 °C 90 %RH12 Months25±5 °C 60 %RH168 Hours

Product Reliability

Table 4 ESD Info
Test ItemSpec.
ESDHBM: >2000V
MM: >200V
CDM: >1000V

Power Consumption Information

Table 5 SiS9527 Power Consumption
ModePower CurrentNote
Normal Operation Mode59 mA @ Max.
Idle Mode32 mA
Sleep Mode6.3 mA

Power Sequence


ParameterDescriptionMinMaxUnits
TrisVDD power on Rise time from 0.1VDD to 0.9VDD-2ms
TpdtVDD Power off lower than 0.3V Interval5-ms
TvdrVDD power on at 3.3V to RESET# at 2.0V5-ms
TrsiTime of starting to report point after resetting100-ms
TrstReset time5-ms

I2C Interface

VendorSiS
Slave Address0x5c(7-bits addressing, programmable)
Clock rate@400 kHz (fast mode)
Interrupt modeDefault active low, level trigger
_CIDPNP0C50
_DSM3CDFF6F7-4267-4555-AD05-B30A3D8938DE
HID Descriptor address0x0000

SymbolParameterSCL=100KHzSCL=400KHzUnit
MinMaxMinMax
Tw(SCLH)SCL clock high time4.71.3us
Tw(SCLL)SCL clock low time4.00.6
Tsu(SDA)SDA setup time250100ns
Th(SDA)SDA data hold time00900
Tr(SDA)
Tr(SCL)		SDA&SCL rise time1000
300
Tf(SDA)
Tf(SCL)		SDA&SCLA fall time300300
Th(STA)Start condition hold time4.00.6us
Tsu(STA)Repeated Start condition setup time4.79.6
Tsu(STO)Stop condition setup time4.00.6
Tw(STO:STA)Stop to Start condition time(bus free)4.71.3

Mechanical Dimension




Application Circuit

SiS9527 Reference Circuit


ItemSymbolValuePart NO.QuantityPackage
1U1-SiS95271
2C2,C3,C4,C10,C11,C171uF/25V/X5R+-10%-60402
3C9,C82.2uF/16V/X5R+-10%-20402
4C164.7uF/25V/X5R+-10%-10402
5BC10.1uF/25V/X5R+-10%-10402

USB and I2C Circuit


ItemSymbolValuePart NO.QuantityPackage
1E15V-TVSPDWL0500191SOT236
2J1Aces-6P-P0.6-(50376)-1
3R29,R300R-20402

ItemSymbolValuePart NO.QuantityPackage
1E2,E3,E4,E5,E65V-TVSPDAB0501205SOT236
2J1Aces-10P-P0.8-1.2-1
3R31,R32,R332.2K-30402

OSC Circuit


ItemSymbolValuePart NO.QuantityPackage
1R710K-10402
2C11uF/25V/X5R+-10%-10402
3R37100R-10402
4OSC1512MHOSC813500-SCO-F3911
5R13,R14,R250R-30402