STM6904SFEDS6F datasheet(14/21 Pages) STMICROELECTRONICS

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DC and AC parameters

STM6904

14/21

VRST2

(4)

VTH2 V2IN reset threshold

Z (falling)

25°C

2.310

2.333

2.356

-40°C to 85°C

2.291

2.375

Y (falling)

25°C

2.166

2.188

2.210

-40°C to 85°C

2.149

2.227

W (falling)

25°C

1.666

1.683

1.700

-40°C to 85°C

1.653

1.713

G (falling)

25°C

1.099

1.110

1.121

-40°C to 85°C

1.090

1.130

F (falling)

25°C

1.040

1.050

1.061

-40°C to 85°C

1.031

1.069

VHYST

Reset threshold

hysteresis

Referenced to VRST1/VRST2

typical

0.5

tRD

VCC to RST delay

VCC = (VRST1 + 100 mV) to

(VRST1 – 100 mV)

µs

V2IN = (VRST2 + 75 mV) to

(VRST2 – 75 mV)

µs

tREC

(5)

tRP

RST time-out period

TRSEL = LOW (VSS)

140

210

280

TRSEL = HIGH (VCC)

280

420

560

Adjustable reset comparator input (V3IN and V4IN)

VRSTIN

V3IN, V4IN input

threshold

589

600

611

I3IN,

I4IN

V3IN, V4IN input current

V3IN, V4IN > 0.8 V

-25

+25

V3IN, V4IN hysteresis

tRSTIND

V3IN, V4IN to RST output

delay

VRSTIN to (VRSTIN – 30 mV)

µs

Manual (push-button) reset input

VIL

MR input voltage

0.3 x VCC

VIH

0.7 x VCC

tMLMH

tMR

MR minimum pulse width

µs

tMLRL

tMRD MR to RST output delay

200

Table 4.

DC and AC characteristics (continued)

Sym

Alter-

native

Description

Test condition(1)

Min

Typ

Max

Unit

STM6904SFEDS6F Datasheet(PDF) 14 Page - STMicroelectronics

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