st10f273m STMicroelectronics, st10f273m Datasheet - Page 93

• Manufacturer Part Number: st10f273m
• Description: 16-bit Mcu With 512 Kbyte Flash Memory And 36 Kbyte Ram
• Manufacturer: STMicroelectronics

ST10F273M
Figure 24. Synchronous long hardware RESET (EA = 1)
1. If during the reset condition (RSTIN low), RPD voltage drops below the threshold voltage (about 2.5V for
2. Minimum RSTIN low pulse duration shall also be longer than 500ns to guarantee the pulse is not masked
5V operation), the asynchronous reset is then immediately entered. Even if RPD returns above the
threshold, the reset is definitely taken as asynchronous.
by the internal filter (refer to
RSTIN
RSTOUT
RPD
RSTF
(After Filter)
P0[15:13]
P0[12:2]
P0[1:0]
FLARST
RST
IBUS-CS
(Internal)
≤ 500 ns
≥ 50 ns
≤4 TCL
200µA Discharge
2)
≤12 TCL
not t.
Section
not transparent
≤ 500 ns
≥ 50 ns
21.1).
1024+8 TCL
1024+8 TCL
not transparent
transparent
At this time RSTF is sampled LOW
so it is definitely LONG reset
transparent
≤ 500 ns
≥ 50 ns
3..4 TCL
1)
≤ 1 ms
V
not entered
RPD
> 2.5V Asynchronous reset
≤ 2 TCL
not t.
not t.
not t.
7 TCL
System reset
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