STMPE2403TBR STMicroelectronics, STMPE2403TBR Datasheet - Page 48

• Manufacturer Part Number: STMPE2403TBR
• Description: IC I/O EXPANDER I2C 24B 36TFBGA
• Manufacturer: STMicroelectronics

Specifications of STMPE2403TBR

• Interface: I²C
• Number Of I /o: 24
• Interrupt Output: Yes
• Frequency - Clock: 400kHz
• Voltage - Supply: 1.65 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 36-TFBGA
• Includes: Keypad, POR, PWM
• For Use With: 497-8206 - BOARD DEMO EXPANDER STMPE2403
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Keypad controller
12.2
48/63
Figure 10. Dedicated key configuration
Registers in keypad controller
Table 45. Registers in keypad controller
Address
0x6C
0x6A
0x6B
0x60
0x61
0x62
0x63
0x64
0x68
0x69
Input 0-3
STMPE2403
4*1212 (9648) Matrix Keys
4 Special Function Keys
04 Dedicated Keys
KPC_data_byte0
KPC_data_byte1
KPC_data_byte2
KPC_data_byte3
KPC_data_byte4
Register Name
KPC_row_msb
KPC_ctrl_msb
KPC_row_lsb
KPC_ctrl_lsb
KPC_col
Special FunctionDedicated
Keys
Input 4-7
Keypad column scanning register
Keypad row scanning register
Keypad control register
Keypad data register
Description
Matrix Keypad
(4*12)
(during sequential R/W)
Special Function Keys
Auto-Increment
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
STMPE2403