STMPE1801BJR STMicroelectronics, STMPE1801BJR Datasheet - Page 40

• 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

Keypad controller
11.2
40/60
Keypad controller registers
The mapping between the keypad controller (rows and columns) and the GPIO is based on
Section
Table 14.
Address
3A
3B
3C
3D
3E
30
31
32
33
34
35
36
37
38
39
2.3.
Keypad controller registers
KPC_COMBI_KEY_0
KPC_COMBI_KEY_1
KPC_COMBI_KEY_2
KPC_DATA_BYTE0
KPC_DATA_BYTE1
KPC_DATA_BYTE2
KPC_DATA_BYTE3
KPC_DATA_BYTE4
KPC_CTRL_HIGH
KPC_CTRL_LOW
KPC_COL_HIGH
KPC_CTRL_MID
KPC_COL_LOW
Register name
KPC_ROW
KPC_CMD
Doc ID 17884 Rev 3
Keypad row register
Keypad column register
Keypad control register
Key command register
Keypad combination key mask 0
Keypad combination key mask 1
Keypad combination key mask 2
Keypad data register
Description
(during sequential R/W)
Auto-increment
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
STMPE1801