st10f272z2 STMicroelectronics, st10f272z2 Datasheet - Page 85

• Manufacturer Part Number: st10f272z2
• Description: 16-bit Mcu With 256 Kbyte Flash Memory And 20 Kbyte Ram
• Manufacturer: STMicroelectronics

ST10F272Z2
Figure 18. Asynchronous power-on RESET (EA = 0)
Hardware reset
The asynchronous reset must be used to recover from catastrophic situations of the
application. It may be triggered by the hardware of the application. Internal hardware logic
and application circuitry are described in Reset circuitry chapter and Figures 30,
It occurs when RSTIN is low and RPD is detected (or becomes) low as well.
Note 1. 3 to 8 TCL depending on clock source selection.
V
V
XTAL1
RPD
RSTIN
RSTF
(After Filter)
P0[15:13]
P0[12:2]
P0[1:0]
ALE
RST
DD
18
≥ 1.2 ms (for resonator oscillation + PLL stabilization)
≥ 10.2 ms (for crystal oscillation + PLL stabilization)
≥ 1 ms (for on-chip VREG stabilization)
not transparent
...
transparent
transparent
system start-up configuration
≥ 50 ns
≤ 500 ns
Latching point of Port0 for
3..4 TCL
3..8 TCL
1)
not t.
not t.
not t.
8 TCL
System reset
31
and 32.
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