FT7522 datasheet(4/8 Pages) FAIRCHILD

Part #	FT7522

Description	Reset Timer with Fixed Delay and Reset Pulse

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Manufacturer	FAIRCHILD [Fairchild Semiconductor]

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FT7522 • Rev. 1.0.0

4

DC Electrical Characteristics

The values reported are valid for any of the following ranges:

TA=-40°C to +85°C at VCC=1.8V to 5.0V,

TA=-25°C to +85°C at VCC=1.7V to 5.0V,

TA=0°C to +85°C at VCC=1.65V to 5.0V.

Symbol

Parameter

Condition

Min.

Max.

Unit

VIH

Input High Voltage

DSR, /SR0

0.65 x VCC

V

VIL

Input Low Voltage

DSR, /SR0

0.25 x VCC

V

VOL

Low Level Output Voltage

RST, IOL=500µA

0.3

V

IIN

Input Leakage Current (/SR0, DSR)

0V

 V

IN  5.0V

1.0

µA

ICC

Quiescent Supply Current (Timer Inactive) /SR0=VCC

1

µA

Dynamic Supply Current (Timer Active)

/SR0=0V

100

µA

AC Electrical Characteristics

The values reported are valid for any of the following ranges:

TA=-40°C to +85°C at VCC=1.8V to 5.0V,

TA=-25°C to +85°C at VCC=1.7V to 5.0V,

TA=0°C to +85°C at VCC=1.65V to 5.0V.

Symbol

Parameter

Conditions

Min.

Typ.

Max.

Unit

tPHL1

Timer Delay, /SR0 to RST (DSR=0)

CL=5pF, RL=5K, See Figure 6

6.0

7.5

9.0

s

tREC

Reset Timeout Delay

320

400

480

ms

Capacitance Specifications

TA=+25C.

Symbol

Parameter

Condition

Typical

Unit

CIN

Input Capacitance

VCC=GND

4.0

pF

COUT

Output Capacitance

VCC=5.0V

5.0

pF

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