ST10F272M-4Q3 STMICROELECTRONICS [STMicroelectronics], ST10F272M-4Q3 Datasheet - Page 81

• Manufacturer Part Number: ST10F272M-4Q3
• Description: 16-bit MCU with 256 Kbyte Flash memory and 20 Kbyte RAM
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

ST10F272M
Figure 18. Asynchronous power-on RESET (EA = 0)
1. 3 to 8 TCL depending on clock source selection
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.
V
V
XTAL1
RPD
RSTIN
RSTF
(After Filter)
P0[15:13]
P0[12:2]
P0[1:0]
ALE
RST
DD
18
≥ 1.2ms (for resonator oscillation + PLL stabilization)
≥ 10.2ms (for crystal oscillation + PLL stabilization)
≥ 1ms (for on-chip VREG stabilization)
not transparent
...
transparent
transparent
system start-up configuration
≤ 500ns
Latching point of Port0 for
≥ 50ns
3..4 TCL
3..8 TCL
(1)
not t.
not t.
not t.
8 TCL
System reset
31
and 32.
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