Errata Sheet - Infineon

Errata Sheet
XC161CS-32F, (E)ES-BB, BB
Functional Problems
However, two pins (P9.2/CC18IO/CAN1_RxD and P9.4/CC20IO) have been identified
that under exceptional conditions (e.g. massive low frequency noise) may cause side
effects on internal flash (read or erase) operations before these overload limits are
reached or exceeded, depending on the amplitude and width of the respective input
signal:
No problem will occur
• when the input levels on pin P9.2/CC18IO/CAN1_RxD do not exceed the positive or
negative supply voltages V SSP or V DDP as listed in the table below.
Otherwise, incorrect data may be read from the internal flash module, or program or
erase operations may fail if this condition is present while the respective operation is
in progress.
• when the input low level on pin P9.4/CC20IO does not exceed the negative supply
voltage V SSP as listed in the table below.
Otherwise, an erase operation of the internal flash module may fail if this condition is
present while an erase operation is in progress.
Conditions for Amplitude and Width of Input Signal:
No problem will occur for signals on pin P9.2/CC18IO/CAN1_RxD with the following
characteristics:
• for low or high pulses with an amplitude Vin < V DDP +0.5V or Vin > V SSP -0.5V and
pulse width < 100 ns and duty cycle DC < 0.33 (e.g. high pulses < 100 ns with this
amplitude are tolerated if the following low phase is > 200 ns)
• for steady state signals or pulses > 100 ns with an amplitude Vin < V DDP +0.2V or Vin
> V SSP -0.2V
No problem will occur for signals on pin P9.4/CC20IO with the following characteristics:
• for low pulses with an amplitude Vin > V SSP -0.5V and pulse width < 1 µs and duty
cycle DC < 0.33 (e.g. low pulses < 1 µs with this amplitude are tolerated if the
following high phase is > 2 µs)
• for steady state signals or low pulses > 1 µs with an amplitude Vin > V SSP -0.3V.
Typical overshoot/undershoot after signal transitions is normally uncritical (covered by
duty cycle specification, see notes 1) and 2) below).
Errata Sheet 17/50 V1.1, 2007-06-21