CD00001237 datasheet(87/105 Pages) STMICROELECTRONICS

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ST6215C ST6225C

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CONTROL PIN CHARACTERISTICS (Cont’d)

Figure 70. Typical Application with RESET pin 8)

11.9.2 NMI Pin

Subject to general operating conditions for VDD, fOSC, and TA unless otherwise specified.

Notes:

1. Unless otherwise specified, typical data are based on TA=25°C and VDD=5V.

2. Data based on characterization results, not tested in production.

3. Hysteresis voltage between Schmitt trigger switching levels. Based on characterization results, not tested.

4. The Rpull-up equivalent resistor is based on a resistive transistor. This data is based on characterization results, not

tested in production.

Figure 71. Typical Rpull-up vs. VDD with VIN=VSS

0.1

μF

VDD

0.1

μF

VDD

4.7k

EXTERNAL

RESET

CIRCUIT 7)

fINT

RESET

WATCHDOG RESET

LVD RESET

INTERNAL

RESET

RESD

VDD

RPU

STOP MODE

Symbol

Parameter

Conditions

Min

Typ 1)

Max

Unit

VIL

Input low level voltage 2)

0.3xVDD

VIH

Input high level voltage 2)

0.7xVDD

Vhys

Schmitt trigger voltage hysteresis 3)

200

400

Rpull-up

Weak pull-up equivalent resistor 4)

VIN=VSS

VDD=5V

100

350

VDD=3.3V

200

700

VDD [V]

100

150

200

250

300

Rpull-up [Kohm]

Ta=-40°C

Ta=25°C

Ta=95°C

Ta=125°C

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