STMPE1801BJR STMicroelectronics, STMPE1801BJR Datasheet - Page 7

• Manufacturer Part Number: STMPE1801BJR
• Description: Touch Screen Converters & Controllers Xpander Logic 18-Bit 18 GPIO 1.65 to 3.6V
• Manufacturer: STMicroelectronics

Specifications of STMPE1801BJR

• Rohs: yes
• Input Type: 1 Keypad
• Data Rate: 400 kbps
• Resolution: 18 bit
• Interface Type: I2C
• Supply Voltage: 1.65 V to 3.6 V
• Supply Current: 28 uA
• Operating Temperature: - 40 C to + 85 C
• Package / Case: CSP-25
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 1.65 V

STMPE1801
Table 3.
The default function is always GPIO. As soon as the key scanning is enabled through the
keypad registers, the function is then switched to the key function and then any configuration
made in the GPIO registers is ignored.
GPIO13
GPIO14
GPIO15
GPIO16
GPIO17
Name
GPIO pin function
Doc ID 17884 Rev 3
Primary function
GPIO
GPIO
GPIO
GPIO
GPIO
Alternate function
Keypad column 5
Keypad column 6
Keypad column 7
Keypad column 8
Keypad column 9
Pin settings
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