STMPE1801BJR STMicroelectronics, STMPE1801BJR Datasheet - Page 50

• 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
11.4
KPC_COMB_KEY_n
Address:
Type:
Reset:
Description:
50/60
RW
C4
7
1
Keypad combination key registers
The 3 keypad controller mask registers contains the key combination to be used to wake up
the KPC and send an interrupt to the host system.
Valid key press value must be entered. The valid range for STMPE1801 is 00 to 4F. Any
other value outside this range is not accepted and a none value of F8 is returned.
[7:3] C[4:0]: Column number of key n (valid range: 00000 – 01001)
[2:0] R[2:0]: Row number of key n (valid range: 000 – 111)
RW
C3
6
1
38, 39
R/W
0xF8
Keypad combination key mask registers.
RW
C2
5
1
RW
C1
4
1
Doc ID 17884 Rev 3
RW
C0
3
1
RW
R2
2
0
Keypad combination [n = 0-2]
RW
R1
1
0
STMPE1801
RW
R0
0
0