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WIZ750SR-100 Datasheet

Hardware Specification​

Product Spec Table​

CategoryDescription
MCUARM Cortex-M0 CoreW7500
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
MCUHardwired TCP/IP Core8 independent Sockets
SRAM for socket: 32KB
MII (Medium-Independent Interface)
TCP/IP Protocols: TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE
PHYTransceiverIP101GRI
Single 10/100M Ethernet Transceiver
SerialInterfaceUART (LVTTL 3.3V)
SerialSignalTXD, RXD, RTS, CTS, DTR, DSR GND
SerialParametersParity: None, Odd, Even
Data bits: 7, 8 bit
Flow control: None, RTS / CTS, XON / XOFF
SerialSpeedUp to 230Kbps
Dimension50mm x 30mm x 12mm (Include part size)
Connector typeMount Connector
2.00mm Pitch 1x12 Pin-header 2EA

Not Mount Connector
2.00mm Pitch 1x12 Pin-header 1ea
2.54mm Pitch 1x6 Pin-header
1.27mm Pitch 1x5 Pin-header
Input VoltageDC 3.3V, 100mA under
Temperature-40℃ ~ 85℃ (Operation), -40℃ ~ 85℃ (Storage range)

WIZ750SR-100 Callout​

TOP
BOTTOM

WIZ750SR-100 Pinout​

WIZ750SR-100 indicate​

Pin NumberPin NameSignalDescription
1LD1Power LED-
2LD2Status_LED0PHY LINK check or initialize done
3LD3Status_LED1TCP Connectoin
4LD4STATUSTrigger mode indicate
TCP connection indicate
5LD5UART0 RXUART receiver indicate
6LD6UART0 TXUART Transceiver indicate

WIZ750SR-100 Block Diagram​

WIZ750SR-100-EVB​

  • WIZ750SR-100 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-100-EVB (RS-232)
    • RS-232C Transceiver, D-SUB9-MALE.

Serial Interface​

Pin NumberSignalDescription
1DCDNC
2RXDReceive Data
3TXDTransmit Data
4DTRData Terminal Ready
5GNDSystem Ground(Signal Ground)
6DSRData Set Ready
7RTSRequest To Send
8CTSClear To Send
9RINC
  • RXD, TXD, GND: These are all you need if the device does not use hardware handshaking.
  • RXD, TXD, GND, RTS, CTS: These are the signals used when serial device uses hardware handshaking.
  • DTR, DSR: Not used

Schematic & Artwork​

WIZ750SR-100​

H/W versionTypeFiletypeDownload LinkRemarks
1.0TTLAltium Download-
::::::PDF Download-
1.1TTLAltium Download-
::::::PDF Download-

WIZ750SR-EVB​

H/W versionTypeFiletypeDownload LinkRemarks
1.0RS232Altium Download-
::::::PDF Download-

Part list​

WIZ750SR-100​

H/W versionTypeFiletypeDownload LinkRemarks
1.0TTLExcel Download
::::::PDF Download
1.1TTLExcel Download
::::::PDF Download

WIZ750SR-100-EVB​

H/W versionTypeFiletypeDownload LinkRemarks
1.0TTLExcel 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 temperatureALL-4085℃
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

Connector Specification​

1x12 Data Pin Connector (J1)​

Pin NumberSignalDescription
1VCCSystem Power input (3.3V)
2RESETSystem Reset signal (Active HIGH)
3GNDSystem Ground
4U_TXD0Transmit Data (TTL : 3.3V)
5U_RTS0Request To Send (TTL : 3.3V)
6U_DTR0
PHY LINK		Data Terminal Ready (TTL : 3.3V)
PHY Link status check signal
7GNDSystem Ground
8U_RXD0Receive Data (TTL : 3.3V)
9U_CTS0Clear To Send (TTL : 3.3V)
10U_DSR0
TCP CON
HW_TRIG		Data Set Ready (TTL : 3.3V)
TCP Connection check signal
11GNDSystem Ground
12STATUSTCP Connection & Trigger mode
High: Not Connected
Low: Connected
:::HW_TRIGHardware Trigger (Only Check once at booting)
High & Floating: Normal mode
Low: App boot mode
  • STATUS pin was changed HW_TRIG pin.

1x12 Network Line (J3)​

WIZ750SR Rev1.0​

WIZ750SR Rev1.1​

Pin NumberSignalDescription
1NCNot Connect
2MDI_RN10/100M MDIO Receiver Differential Signal (N signal)
3MDI_RP10/100M MDIO Receiver Differential Signal (P signal)
4GNDSystem Ground
5MDI_TN10/100M MDIO Transceiver Differential Signal (N signal)
6MDI_TP10/100M MDIO Transceiver Differential Signal (P signal)
7GNDSystem Ground
8Link LEDHigh: Link down
Low: Link up
(When the PHY is physically connected, the LINK LED lights up.)
9NCNot Connect
10ACT LEDBlink: 100M ACT
(ACT LED blinks when data is transmitted/received between PHYs.)
11NCNot Connect
(This pin connected to COL pin in Rev1.0.
this pin outputs a high-status signal it means a collision is detected.
Processed to NC in Rev1.1.)
12VCCSystem Power input (3.3V)

1x12 Expansion GPIO & APP BOOT & Debug(ISP) Port (J2)​

Pin NumberSignalDescription
1GNDSystem Ground
2Status LED0User's depend on pin(LED)
3Status LED1User's depend on pin(LED)
4BOOTBOOT SW
5U_TXD2Simple UART2(Debug port)
ISP mode firmware downloader port
6U_RXD2Simple UART2(Debug port)
ISP mode firmware downloader port
7Expansion GPIODExpansion User's depend on GPIO port
8Expansion GPIOC:::
9Expansion GPIOB:::
10Expansion GPIOA:::
11APP BOOTApplication Jump at BOOT mode
12GNDSystem Ground

1x5 SWD​

Pin NumberSignalDescription
1VCCSystem Power input (3.3V)
2SWDIOSWD(JTAG) Data I/O pin
3SWCLKSWD(JTAG) Clock pin
4nRESETSystem Reset signal (Active Low)[1]
5GNDSystem Ground

Caution) WIZ750SR-100 SWD reset pin must be active low, because it was connected to MCU directly.

1x6 ISP​

Pin NumberSignalDescription
1VCCSystem Power input (3.3V)
2BOOTBOOT SW
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)1
6GNDSystem Ground

  1. This pin connect to MCU reset pin directly↩︎

Caution) WIZ750SR-100 ISP reset pin must be active low, because it was connected to MCU directly.

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

Dimension​

  • WIZ750SR-100 Rev1.0 Dimension :
    • 50mm x 30mm ( PCB board size )
    • 50mm x 30mm x 12mm ( Included part size )
  • WIZ750SR-100-EVB Rev1.0 Dimension :
    • 105mm x 70mm ( PCB board size )
    • 105mm x 70mm x 18mm ( Included part size )

[1] This pin connect to MCU reset pin directly