ST10F271Z1T3 datasheet(87/185 Pages) STMICROELECTRONICS

Part #	ST10F271Z1T3

Description	16-bit MCU with 128 Kbyte Flash memory and 12 Kbyte RAM

PDF	185 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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87 / 185 page

ST10F271Z1

System reset

87/185

Figure 23.

Synchronous long hardware reset (EA = 1)

P0[15:13]

not transparent

RSTF

P0[12:2]

transparent

not t.

P0[1:0]

not t.

not transparent

FLARST

RST

≤ 1 ms

1024+8 TCL

≤ 2 TCL

1) V

RPD > 2.5V Asynchronous Reset not entered

200

µA Discharge

RPD

RSTOUT

At this time RSTF is sampled LOW

so it is definitely LONG reset

(After Filter)

RSTIN

1024+8 TCL

≤4 TCL2) ≤12 TCL

≤ 500 ns

≥ 50 ns

≤ 500 ns

≥ 50 ns

≤ 500 ns

≥ 50 ns

IBUS-CS

7 TCL

1. If during the reset condition (RSTIN low), RPD voltage drops below the threshold voltage (about 2.5V for 5V operation),

the asynchronous reset is then immediately entered. Even if RPD returns above the threshold,

2. Minimum RSTIN low pulse duration shall also be longer than 500 ns to guarantee the pulse is not masked by the

internal filter (refer to Section 21.1).

Notes:

not t.

transparent

not t.

3..4 TCL

(Internal)

the reset is defnitively taken as asynchronous.

ST10F271Z1T3 Datasheet(PDF) 87 Page - STMicroelectronics

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