TMP92CF30
2009-06-12
92CF30-15
This LSI has the restriction for the order of supplying power. Be sure to supply external
3.3V power with 1.5V power is supplied.
Note1: Although it is possible to turn on or off the 1.5-V and 3.3-V power supply rails simultaneously, it may cause
external pins to temporarily become unstable. Therefore, if there is any possibility that this would affect
peripheral devices connected with the TMP92CF30, external power supplies should be turned on or off while
the internal power supplies are stable, as indicated by the heavy lines in the diagram above.
Note2: In the power-on sequence, the 3.3-V power supply rails must not be turned on before the ones of 1.5-V . In the
power -off sequence, the 3.3-V power supply rails must not be turned off after the ones of 1.5-V.
Figure 3.1.2 Power on Reset Timing Example
1.5V
Power
DVCC1A
DVCC1B
DVCC1C
RESET
AVCC
DVCC3A
Power should rise and
stabilizes within 100 ms.
3.3-V rails should be
turned off first, followed by
the 1.5-V rails.
1.5-V rails should be
turned on first,
followed by the 3.3-V
rails.
Power should fall and
stabilizes within 100 ms.
High-frequency Oscillation Stabilizing Time
+
20 system clock cycles
3.3V
Power
When Powering on
When Powering off
Summary of Contents for TLCS-900/H1 Series
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