CY8C20111 View Datasheet(PDF) - Cypress Semiconductor
Part Name
Description
MFG CO.
CY8C20111
Cypress Semiconductor
'CY8C20111' PDF : 34 Pages View PDF
CY8C20111, CY8C20121
Contents
Pinouts .............................................................................. 3
Pin Definitions .................................................................. 3
Pinouts .............................................................................. 4
Pin Definitions .................................................................. 4
Typical Circuits ................................................................. 5
Operating Modes .............................................................. 8
Normal Mode ............................................................... 8
Setup Mode ................................................................. 8
I2C Interface ...................................................................... 8
I2C Device Addressing ................................................ 8
I2C Clock Stretching .................................................... 8
Format for Register Write and Read ........................... 9
Registers ........................................................................... 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
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
Layout Guidelines and Best Practices ......................... 26
Example PCB Layout Design
with Two CapSense Buttons and Two LEDs .................... 28
Operating Voltages ......................................................... 29
CapSense Constraints ................................................... 29
Absolute Maximum Ratings .......................................... 30
Operating Temperature .................................................. 30
Electrical Specifications ................................................ 31
DC Electrical Specifications ...................................... 31
CapSense Electrical Characteristics ......................... 33
AC Electrical Specifications ....................................... 33
Appendix ......................................................................... 35
Examples of Frequently Used I2C Commands ......... 35
Ordering Information ...................................................... 36
Ordering Code Definitions ......................................... 36
Thermal Impedances ...................................................... 36
Solder Reflow Specifications ........................................ 36
Package Diagram ............................................................ 37
Acronyms ........................................................................ 38
Document Conventions ................................................. 38
Units of Measure ....................................................... 38
Numeric Conventions ................................................ 38
Glossary .......................................................................... 39
Document History Page ................................................. 43
Sales, Solutions, and Legal Information ...................... 44
Worldwide Sales and Design Support ....................... 44
Products .................................................................... 44
PSoC Solutions ......................................................... 44
Document Number: 001-53516 Rev. *H
Page 2 of 44
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