Specifications

CY8C24123A
CY8C24223A
CY8C24423A
Document Number: 38-12028 Rev. *V Page 67 of 71
Errata
This section describes the errata for the CY8C24xxxA device family. Details include errata trigger conditions, scope of impact, available
workaround, and silicon revision applicability. Contact your local Cypress Sales Representative if you have questions.
Part Numbers Affected
CY8C24123A Qualification Status
Product Status: Production
CY8C24123A Errata Summary
The following table defines the errata applicability to available CY8C24123A family devices.
1. Internal Main Oscillator (IMO) Tolerance Deviation at Temperature Extremes
■ Problem Definition
Asynchronous Digital Communications 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 datasheet temperature range is ±5%.
■ Trigger Condition(S)
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 communications interface.
■ Fix Status
Silicon fix is not planned. The workaround mentioned above should be used.
Part Number Ordering Information
CY8C24123A CY8C24123A-24PXI
CY8C24123A-24SXI
CY8C24123A-24SXIT
CY8C24223A-24PXI
CY8C24223A-24PVXI
CY8C24223A-24PVXIT
CY8C24223A-24SXI
CY8C24223A-24SXIT
CY8C24423A-24PXI
CY8C24423A-24PVXI
CY8C24423A-24PVXIT
CY8C24423A-24SXI
CY8C24423A-24SXIT
CY8C24423A-24LFXI
CY8C24423A-24LTXI
CY8C24423A-24LTXIT
CY8C24000A-24PVXI
Items Part Number Silicon Revision Fix Status
[1.]. Internal Main Oscillator (IMO) Tolerance Deviation at
Temperature Extremes
CY8C24123A *A No silicon fix planned.
Workaround is
required.