CY8C20111_12 CYPRESS [Cypress Semiconductor], CY8C20111_12 Datasheet - Page 2

• Manufacturer Part Number: CY8C20111_12
• Manufacturer: CYPRESS [Cypress Semiconductor]

Contents
Pinouts .............................................................................. 3
Pin Definitions .................................................................. 3
Pinouts .............................................................................. 4
Pin Definitions .................................................................. 4
Typical Circuits ................................................................. 5
Operating Modes .............................................................. 8
I2C Interface ...................................................................... 8
Registers ........................................................................... 9
Document Number: 001-53516 Rev. *H
Normal Mode ............................................................... 8
Setup Mode ................................................................. 8
I2C Device Addressing ................................................ 8
I2C Clock Stretching .................................................... 8
Format for Register Write and Read ........................... 9
Register Conventions .................................................. 9
Register Map ............................................................. 10
CapSense Express Commands ................................ 11
OUTPUT_STATUS ................................................... 12
OUTPUT_PORT ........................................................ 12
CS_ENABLE ............................................................. 12
DIG_ENABLE ............................................................ 13
SET_STRONG_DM .................................................. 13
OP_SEL_x ................................................................. 15
LOGICAL_OPR_INPUTx .......................................... 15
CS_NOISE_TH ......................................................... 16
CS_BL_UPD_TH ....................................................... 16
CS_SETL_TIME ........................................................ 16
CS_OTH_SET ........................................................... 17
CS_HYSTERISIS ...................................................... 17
CS_DEBOUNCE ....................................................... 18
CS_NEG_NOISE_TH ................................................ 18
CS_LOW_BL_RST .................................................... 18
CS_FILTERING ......................................................... 19
CS_SCAN_POS_x .................................................... 19
CS_FINGER_TH_x ................................................... 20
CS_IDAC_x ............................................................... 20
I2C_ADDR_LOCK ..................................................... 20
DEVICE_ID ............................................................... 21
Layout Guidelines and Best Practices ......................... 26
with Two CapSense Buttons and Two LEDs .................... 28
Operating Voltages ......................................................... 29
CapSense Constraints ................................................... 29
Absolute Maximum Ratings .......................................... 30
Operating Temperature .................................................. 30
Electrical Specifications ................................................ 31
Appendix ......................................................................... 35
Ordering Information ...................................................... 36
Thermal Impedances ...................................................... 36
Solder Reflow Specifications ........................................ 36
Package Diagram ............................................................ 37
Acronyms ........................................................................ 38
Document Conventions ................................................. 38
Glossary .......................................................................... 39
Document History Page ................................................. 43
Sales, Solutions, and Legal Information ...................... 44
DEVICE_STATUS ..................................................... 21
I2C_ADDR_DM ......................................................... 22
CS_READ_BUTTON ................................................. 22
CS_READ_BLx ......................................................... 23
CS_READ_DIFFx ...................................................... 23
CS_READ_RAWx ..................................................... 23
CS_READ_STATUS ................................................. 24
COMMAND_REG ...................................................... 24
Example PCB Layout Design
DC Electrical Specifications ...................................... 31
CapSense Electrical Characteristics ......................... 33
AC Electrical Specifications ....................................... 33
Examples of Frequently Used I2C Commands ......... 35
Ordering Code Definitions ......................................... 36
Units of Measure ....................................................... 38
Numeric Conventions ................................................ 38
Worldwide Sales and Design Support ....................... 44
Products .................................................................... 44
PSoC Solutions ......................................................... 44
CY8C20111, CY8C20121
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