ATtiny10 datasheet(119/168 Pages) ATMEL

119 / 168 page

119

8127C–AVR–10/09

ATtiny4/5/9/10

16.5 System and Reset Characteristics

Note:

1. Values are guidelines, only

16.5.1

Power-On Reset

Note:

1. Values are guidelines, only

2. Threshold where device is released from reset when voltage is rising

3. The Power-on Reset will not work unless the supply voltage has been below VPOT (falling)

16.5.2

VCC Level Monitor

Note:

1. Typical values at room temperature

Table 16-4.

Reset, VLM, and Internal Voltage Characteristics

Symbol

Parameter

Condition

Min(1)

Typ(1)

Max(1)

Units

VRST

RESET Pin Threshold

Voltage

0.2 VCC

0.9VCC

tRST

Minimum pulse width on

RESET Pin

VCC = 1.8V

VCC = 3V

VCC = 5V

2000

700

400

tTOUT

Time-out after reset

128

VHYST

VLM Hysteresis

Table 16-5.

Characteristics of Enhanced Power-On Reset. T

A = -40 - 85°C

Symbol

Parameter

Min(1)

Typ(1)

Max(1)

Units

VPOR

Release threshold of power-on reset (2)

1.1

1.4

1.6

VPOA

Activation threshold of power-on reset (3)

0.6

1.3

1.6

SRON

Power-On Slope Rate

0.01

V/ms

Table 16-6.

Voltage Level Monitor Thresholds

Parameter

Min

Typ (1)

Max

Units

Trigger level VLM1L

1.1

1.4

1.6

Trigger level VLM1H

1.4

1.6

1.8

Trigger level VLM2

2.0

2.5

2.7

Trigger level VLM3

3.2

3.7

4.5

Settling time VMLM2,VLM3 (VLM1H,VLM1L)

5 (50)

µs

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