ST10F272M-4Q3 STMICROELECTRONICS [STMicroelectronics], ST10F272M-4Q3 Datasheet - Page 87
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ST10F272M-4Q3
Manufacturer Part Number
ST10F272M-4Q3
Description
16-bit MCU with 256 Kbyte Flash memory and 20 Kbyte RAM
Manufacturer
STMICROELECTRONICS [STMicroelectronics]
Datasheet
1.ST10F272M-4Q3.pdf
(175 pages)
- Current page: 87 of 175
- Download datasheet (4Mb)
ST10F272M
Figure 22. Synchronous short / long hardware RESET (EA = 0)
1. RSTIN assertion can be released there. Refer also to
2. If during the reset condition (RSTIN low), RPD voltage drops below the threshold voltage (about 2.5V for
3. 3 to 8 TCL depending on clock source selection.
4. RSTIN pin is pulled low if bit BDRSTEN (bit 3 of SYSCON register) was previously set by software. Bit
5. 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.
BDRSTEN is cleared after reset.
by the internal filter (refer to
RSTIN
RSTF
(After Filter)
P0[15:13]
P0[12:2]
P0[1:0]
ALE
RST
RSTOUT
RPD
≤ 500 ns
≥ 50 ns
≤4
TCL
200µA Discharge
(5)
(1)
≤
Section
12 TCL
not t.
≤ 500 ns
≥ 50 ns
21.1).
(4)
< 1032 TCL
1024 TCL
not transparent
not transparent
transparent
Section 21.1
≤ 500 ns
≥ 50 ns
8 TCL
(2)
At this time RSTF is sampled HIGH or LOW
so it is SHORT or LONG reset
3..8 TCL
for details on minimum pulse duration.
V
RPD
> 2.5V Asynchronous Reset not entered
(3)
not t.
not t.
8 TCL
System reset
87/176
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