STEVAL-ICB004V1 STMicroelectronics, STEVAL-ICB004V1 Datasheet - Page 12

• Manufacturer Part Number: STEVAL-ICB004V1
• Description: BOARD EVAL TOUCH SCREEN STMPE811
• Manufacturer: STMicroelectronics
• Series: S-Touch™r

Specifications of STEVAL-ICB004V1

• Sensor Type: Touch Screen
• Interface: I²C, SPI
• Voltage - Supply: 5V
• Embedded: Yes, MCU, 32-Bit
• Utilized Ic / Part: STMPE811
• Interface Type: SPI, I2C, USB
• Operating Voltage: 3.3 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Sensing Range: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: STMPE811
• Other names: 497-10336

Hardware details
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LEDs D1, D2, D3, D4
Table 6.
The board provides hardware support for two voltage regulators, U3 and U4. Only one is
mounted at one time. D2 & D3 are power LEDs for the respective voltage regulators.
Touchscreen J1
The 4-wire 3.8" resistive touchscreen is mounted on the board for touch sensing
demonstration using the S-Touch™ resistive touchscreen controller demo GUI.
Touchscreen controller U1
The STMPE811 (4-wire resistive touchscreen controller) is interfaced with the 4-wire
touchscreen J1. It is responsible for converting touch events on the touchscreen to digital
touch coordinates. The STMPE811 supports SPI and I
is interfaced with the microcontroller using the I
The STEVAL-ICB004V1 board also supports the STMPE610 touchscreen controller device.
The STMPE610 features touch sensing and 6-line GPIO port expander functionality, while
the STMPE811 supports touch sensing with 8-line GPIO expander functionality. Both are
pin-to-pin compatible, but in the STMPE610, pin number 8 is NC and pin number 9 has
limited functionality compared to the STMPE811. Therefore, if the STMPE610 is used in the
STEVAL-ICB004V1, switch SW1 (pin 8 of The STMPE811) does not function. However,
touch sensing and all remaining GPIOs are fully functional on the board with the
STMPE610. To demonstrate the capabilities of the STMPE610 using the STEVAL-
ICB004V1 board, simply replace component U1 (STMPE811) with the STMPE610.
Microcontroller U2
The STM32F103T8U6 (STM32 Performance Line 36-pin, 64 K Flash, 20 K RAM) MCU is
used to provide the USB interface between touchscreen controller STMPE811 and the PC
GUI.
LED
D1
D2
D3
D4
LED description
Doc ID 16158 Rev 3
Demonstrates GPIO expander functionality
Shows application status of the board
Shows power status of the board
Shows power status of the board
Description
2
C interface.
2
C interfacing. Here, the STMPE811
UM0772