CY8CTST110, CY8CTMG110
September 25, 2008 Document No. 001-49078 Rev. ** 1
September 2008
Silicon Errata for CY8CTST110 and CY8CTMG110
This document describes the errata for the TrueTouch devices CY8CTST110 and CY8CTMG110. Details include
errata trigger conditions, scope of impact, available workarounds, and silicon revision applicability. Compare this
document to the device’s data sheet for a complete functional description.
Contact your local Cypress Sales Representative if you have questions.
Part Numbers Affected
Part Number
Ordering Information
CY8CTxx110
CY8CTST110-32LTXI
CY8CTST110-32LTXIT
CY8CTST110-00PVXI
CY8CTMG110-32LTXI
CY8CTMG110-32LTXIT
CY8CTMG110-00PVXI
Errata Summary
The following table defines the errata applicability to available CY8CTxx110 family devices.
Items
Part Number
Silicon Revision
Fix Status
[1]. Internal Main Oscillator
(IMO) Tolerance Deviation at
Temperature Extremes
CY8CTxx110
A
Silicon fix is planned.
1. Internal Main Oscillator (IMO) Tolerance Deviation at Temperature Extremes
PROBLEM DEFINITION
Asynchronous digital communication interfaces may fail framing beyond 0 to 70°C. This problem does not
affect end product usage between 0 and 70°C.
PARAMETERS AFFECTED
The IMO frequency tolerance. The worst case deviation when operated below 0°C and above +70°C and
within the upper and lower data sheet temperature range is ±5%.
TRIGGER CONDITION
The asynchronous Rx/Tx clock source IMO frequency tolerance may deviate beyond the data sheet limit
of ±2.5% when operated beyond the temperature range of 0 to +70°C.
SCOPE OF IMPACT
This problem may affect UART, IrDA, and FSK implementations.
WORKAROUND
Implement a quartz crystal stabilized clock source on at least one end of the asynchronous digital
communication interface.
FIX STATUS
The cause of this problem and its solution has been identified. Silicon fix is planned to correct the
deficiency in silicon.
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CY8CTST110, CY8CTMG110
September 25, 2008 Document No. 001-49078 Rev. ** 2
References
[1] Document # 001-46931 CY8CTST110 TrueTouch(TM) Single-Touch Touchscreen Controller (Final)
[2] Document # 001-46928 CY8CTMG110 TrueTouch(TM) Multi-Touch Gesture Touchscreen Controller (Final)
Document History
Document Title: Silicon Errata for CY8CTST110 and CY8CTMG110
Document Number: 001-49078
Revision
ECN
Submission
Date
Orig. of
Change
Description of Change
**
2572224
09/25/08
KRY
IMO tolerance deviation
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