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ILC811

Microprocessor Reset Circuits

Impala Linear Corporation 

Microprocessor Reset Circuits

Preliminary

Absolute Maximum Ratings

Parameter

Terminal Voltage

Input Current

Output Current

Rate of Rise

Operating Temperature Range

Storage Temperature Range

Lead Temperature (Soldering - 10 sec.)

Power Dissipation (TA = +70°C)

Symbol

VCC

MR

VCC, MR

RESET, RESET

VCC

TA

Ratings

-0.3 to 6.0

-0.3 to (VCC + 0.3)

20

20

100

-40 to +85

-65 to +150

300

320

Units

V

V

mA

mA

V/µs

°C

°C

°C

mW

Stresses above those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent device failure. Functionality at

or above these limits is not implied. Exposure to absolute maximum ratings for extended periods may affect device reliabil-

ity. Operating ranges define those limits between which the functionality of the device is guaranteed.

Electrical Characteristics

VCC = 5V for ILC81_L/M/J, VCC = 3.3V for ILC81_S/T, VCC = 3V for ILC81_R, TA = Operating Temperature Range, unless

otherwise noted.

Parameter

Conditions

Min

Typ

Max Units

Operating Voltage Range, VCC

Supply Current, ICC

Reset Voltage Threshold, VTH

TA = 0°C to 70°C

TA = -40°C to 85°C

ILC811L/M/J, ILC812L/M/J

VCC < 3.6V, ILC811R/S/T, ILC812R/S/T

ILC811L, ILC812L

ILC811M, ILC812M

ILC811J, ILC812J

1.4

5.5

V

1.6

5.5

9

15

µA

6

10

4.50

4.63

4.75

V

4.25

4.38

4.50

3.89

4.00

4.10

ILC811T, ILC812T

ILC811S, ILC812S

3.00

3.08

3.15

2.85

2.93

3.00

ILC811R, ILC812R

2.55

2.63

2.70

Reset Timeout Period, tR

140

240

RESET Output Voltage, VOH

ISOURCE = 800µA, ILC811L/M/J

ISOURCE = 500µA, ILC811R/S/T

VCC – 1.5

0.8 x VCC

RESET Output Voltage, VOL

VCC = VTH Min., ISINK = 3.2mA, ILC811L/M/J

VCC = VTH Min., ISINK = 1.2mA, ILC811R/S/T

VCC > 1.4V, ISINK = 50µA, TA = 0°C to 70°C

VCC > 1.6V, ISINK = 50µA, TA = -40°C to 85°C

560

ms

V

0.4

V

0.3

0.3

0.3

RESET Output Voltage, VOH

RESET Output Voltage, VOL

MR Minimum Pulse Width

MR to Reset Delay

MR Input Threshold, VIH

MR Input Threshold, VIL

MR Pull-Up Resistance

MR Glitch Immunity

1.8V < VCC < VTH Min., ISOURCE= 150µA

ISINK = 3.2mA, ILC812L/M/J

ISINK = 1.2mA, ILC812R/S/T

VCC > VTH Max., ILC81_L/M/J

ILC81_R/S/T

VCC > VTH Max., ILC81_L/M/J

ILC81_R/S/T

0.8 x VCC

10

0.5

2.3

0.7 x VCC

10

20

100

V

0.4

V

0.3

µs

µs

V

0.8

V

0.25 x

VCC

30

kΩ

ns

Impala Linear Corporation

ILC811/812 1.3

(408) 574-3939 www.impalalinear.com

Sept 1999 2

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