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Datasheet

Hardware Specification​

Product Spec Table​

CategoryDescription
MCUARM Cortex-M0 CoreW7500P PHY Included 48Mhz maximum frequency Internal 8Mhz RC Oscillator Flash: 128KB Large flexible-size SRAM buffer for various User Application - Min 16KB available if full 32KB socket buffer used - Max 48KB available if no socket buffer used ROM for boot code: 6 KB
:::Hardwired TCP/IP Core 8 independent Sockets SRAM for socket: 32KB MII (Medium-Independent Interface) TCP/IP Protocols: TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE
:::IC+(IP101G) PHY Auto negotiation (Full-duplex and Half-duplex) Auto MDI/MDIX
SerialInterfaceWIZ750SR-TTL: TTL Version WIZ750SR-232: RS-232 Version WIZ750SR-422/485: RS-422/485 Version
SignalTXD, RXD, RTS, CTS, GND
ParametersParity: None, Odd, Even Data bits: 7, 8 bit Flow control: None, RTS / CTS, XON / XOFF
SpeedUp to 230Kbps
Dimension45mm x 30mm (PCB board size) 48mm x 30mm x 18mm (Include part size)
Connector type2.54mm Pitch 6x2 Pin-header(Data Line) 2.54mm Pitch 1x6 Pin-header(ISP) 2.54mm Pitch 1x6 Pin-header(Expansion GPIO & app_boot) 1.27mm Pitch 1x5 Pin-header (JTAG)
Input VoltageDC 3.3V
Temperature0℃ ~ 70℃ (Operation), -40℃ ~ 85℃ (Storage range)

Callout​

Rev1.0/Rev1.1​

TOPBOTTOM

Rev1.2​

TOPBOTTOM
  • WIZ750SR Rev1.2 has erased Watchdog IC and J5 connector and added POR(MIC811SUY) IC for stable operation.

WIZ750SR Pinout​

Rev1.1Rev1.2

Product Comparison Table​

SpecificationWIZ750SR-TTLWIZ750SR-232WIZ750SR-485
(RS-422)		WIZ750SR-485
(RS-485)
Operation modeSingle-EndedSingle-EndedDifferential
Communication MethodFull DuplexFull DuplexFull DuplexHalf Duplex
TransceiverN/A (Resistor)RS-232CRS-422/485RS-422/485

WIZ750SR-TTL​

  • Feature
    • This Product operates with WIZ750SR-TTL/232 EVB Board.
    • Caution) This product doesn't have any RS-232C & RS-422/485 Transceivers on it.

WIZ750SR-232​

  • Feature
    • This Product operates with WIZ750SR-TTL/232 EVB Board.

WIZ750SR-485​

  • Feature
    • This Product operates with WIZ750SR-422/485 EVB Board.

WIZ750SR-EVB​

  • WIZ750SR Developer Board.
  • USB to UART chip, CP2104.
  • RESET Tact SW.
  • BOOT0 Slide SW.
  • H/W Trig Slide SW.
  • Expansion GPIO TEST (Digital / Analog)
  • Micro USB.
  • WIZ750SR-EVB (TTL/232)
    • RS-232C Connector, D-SUB9-MALE.
  • WIZ750SR-EVB (422/485)
    • RS-422/485 Connector, ECH381R.

TTL / RS232 Version​

WIZ750SR EVB TTL/RS232 Call Out
WIZ750SR EVB TTL/RS232 Block Diagram

RS422 / RS485 Version​

WIZ750SR EVB RS422/485 Call Out
WIZ750SR EVB RS422/485 Block Diagram

Schematic​

WIZ750SR​

H/W versionTypeFiletypeDownload LinkRemarks
1.0TTL
RS-232
RS-485		Altium Download-
::::::PDF Download-
1.1:::Altium Download-
::::::PDF Download:::
1.2:::Altium DownloadLatest version H/W
::::::PDF Download:::

WIZ750SR-EVB​

H/W versionTypeFiletypeDownload LinkRemarks
1.0TTL
RS-232		Altium DownloadLatest version H/W
::::::PDF Download:::
:::RS-422
RS-485		Altium Download:::
::::::PDF Download:::

3D File​

H/W versionTypeFiletypeDownload LinkRemarks
1.2TTL
RS-232
RS-485		Altium Download-

Part list​

WIZ750SR​

H/W versionTypeFiletypeDownload LinkRemarks
1.0TTLExcel Download-
::::::PDF Download:::
:::RS-232Excel Download:::
::::::PDF Download:::
:::RS-485Excel Download:::
::::::PDF Download:::
1.1TTLExcel Download-
::::::PDF Download:::
:::RS-232Excel Download:::
::::::PDF Download:::
:::RS-485Excel Download:::
::::::PDF Download:::
1.2TTLExcel DownloadLatest version H/W
::::::PDF Download:::
:::RS-232Excel Download:::
::::::PDF Download:::
:::RS-485Excel Download:::
::::::PDF Download:::

WIZ750SR-EVB​

H/W versionTypeFiletypeDownload LinkRemarks
1.0TTLExcel DownloadBOM version 1.0
::::::PDF Download:::
:::RS-232Excel Download:::
::::::PDF Download:::
:::RS-485Excel Download:::
::::::PDF Download:::
1.0TTLExcel DownloadBOM version 1.1
Latest version H/W
::::::PDF Download:::
:::RS-232Excel Download:::
::::::PDF Download:::
:::RS-485Excel Download:::
::::::PDF Download:::

Electrical Characteristics​

Operating Conditions​

SymbolParameterPinsMinTypMaxUnit
VccOperating Voltage3.3V3.1353.33.465V
VssGroundALL050mV
fFCLKInternal CPU clock frequencyALL0-48MHz
TstgStorage Temperature (max)ALL-4085℃
TAAmbient operating temperatureALL070℃
VIOI/O Signal voltage (Tolerance)ALLVss-0.33.35V
VIHInput high voltageALL2.5V
VILInput low voltageALL0.6V
VOHOutput high voltage
(High driving strength Current load = 6mA)
(Low driving strength Current load = 3mA)		ALL2.83V
VOLOutput high voltage
(High driving strength Current load = 6mA)
(Low driving strength Current load = 3mA)		ALL0.32V

Flash Memory​

SymbolParameterMinUnit
NENDSector Endurance10,000Cycles
TDRData Retention10Years

EEPROM​

SymbolParameterMinUnit
NENDSector Endurance1MCycles
TDRData Retention200Years

Ethernet Power Dissipation​

WIZ750SR-TTL​

ConditionMinTypMaxTolUnit
100M Link-67-±3mA
10M Link-52-mA
Unlink (Auto-negotiation mode)455057±3mA
100M Transmitting-74-±3mA
10M Transmitting-62-mA

WIZ750SR-RS232​

ConditionMinTypMaxTolUnit
100M Link-72-±3mA
10M Link-57-mA
Unlink (Auto-negotiation mode)465461±3mA
100M Transmitting-79-±3mA
10M Transmitting-61-mA

WIZ750SR-RS422/485​

ConditionMinTypMaxTolUnit
100M Link-95-±3mA
10M Link-80-mA
Unlink (Auto-negotiation mode)747985±3mA
100M Transmitting-102-±3mA
10M Transmitting-83-mA

WIZ750SR Connector Specification​

6x2 Data Pin Connector​

TTL/RS-232​

Pin NumberSignalDescription
1VCCSystem Power input (3.3V)
2VCCSystem Power input (3.3V)
3U_RXD0Receive Data (TTL : 3.3V)
4nRESETSystem Reset signal (Active Low)
5U_RTS0Request To Send (TTL : 3.3V)
6U_DTR0
PHY LINK		Data Terminal Ready (TTL : 3.3V)
PHY Link status check signal
7U_TXD0Transmit Data (TTL : 3.3V)
8U_DSR0
TCP CON
HW_TRIG		Data Set Ready (TTL : 3.3V)
TCP Connection check signal
Hardware Trigger signal (Active Low)
9U_CTS0Clear To Send (TTL : 3.3V)
10Not useThis pin use to RS-422/485 mode
11GNDSystem Ground
12GNDSystem Ground

RS-422/485​

Pin NumberSignalDescription
1VCCSystem Power input (3.3V)
2VCCSystem Power input (3.3V)
3422_RXD+
485+		Differential Data +
RS-485+
4nRESETSystem Reset signal (Active Low)
5422_RXD-
485-		Differential Data -
RS-485-
6U_DTR0
PHY LINK		Data Terminal Ready (TTL : 3.3V)
PHY Link status check signal
7422_TXD+Differential Data +
8U_DSR0
TCP CON
HW_TRIG		Data Set Ready (TTL : 3.3V)
TCP Connection check signal
Hardware Trigger signal (Active Low)
9422_TXD-Differential Data -
10485_SELWIZ750SR-485, 485/422 MODE Select pin
11GNDSystem Ground
12GNDSystem Ground

1x6 ISP Connector​

Pin NumberSignalDescription
1VCCSystem Power input (3.3V)
2BOOTBOOT mode (Active High)
3U_TXD2Simple UART2(Debug port)
ISP mode firmware downloader port
4U_RXD2Simple UART2(Debug port)
ISP mode firmware downloader port
5nRESETSystem Reset signal (Active Low)
6GNDSystem Ground

1x2 Supervisor Jumper / 1x6 Expansion GPIO & APP BOOT​

Rev1.1Rev1.2
Pin NumberSignalDescription
1WDT_nRST(input)It only has rev1.0/1.1
2W7500P_RSTN(output):::
Pin NumberSignalDescription
1Expansion GPIODExpansion User's depend on GPIO port
2Expansion GPIOC:::
3Expansion GPIOB:::
4Expansion GPIOA:::
5APP BOOTApplication Jump at BOOT mode
6GNDSystem Ground

RJ-45 Connector (BS-RB10005)​

Pin NumberPinSignal
1R1TX+
2R2TX-
3R3TCT/RCT(Center tap)
4R7RX+
5R8RX-
6L1+(Active LED)Anode
7L2- (Active LED)Cathode
8L3+(LINK LED)Anode
9L4- (LINK LED)Cathode

WIZ750SR Dimension​

  • The board size of the WIZ750SR Rev1.1 is the same as Rev1.0.

  • WIZ750SR Dimension :

    • 45mm x 30mm ( PCB board size )
    • 48mm x 30mm x 18mm ( Included part size )
Rev1.0/1.1Rev1.2
  • WIZ750SR-EVB (TTL/RS232) Rev1.0 Dimension :
    • 83mm x 65mm ( PCB board size )
    • 83mm x 65mm x 18mm ( Included part size )

  • WIZ750SR-EVB (RS422/485) Rev1.0 Dimension :
    • 73mm x 65mm ( PCB board size )
    • 73mm x 65mm x 18mm ( Included part size )