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SMS24

Highly Programmble Voltage Supervisory Circuit

Summit Microelectronics 

SMS24

ABSOLUTE MAXIMUM RATINGS*

Temperature Under Bias ....................... -55°C to 125°C

Storage Temperature ............................ -65°C to 150°C

Lead Solder Temperature (10 secs) ................... 300 °C

Terminal Voltage with Respect to GND:

VCC ................................. -0.3V to 6.0V

All Others ........................ -0.3V to 6.0V

*COMMENT

Stresses listed under Absolute Maximum Ratings may cause perma-

nent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions

outside those listed in the operational sections of this specification is not

implied. Exposure to any absolute maximum rating for extended

periods may affect device performance and reliability.

DC OPERATING CHARACTERISTICS

(Over Recommended Operating Conditions; Voltages are relative to GND)

Symbol

Parameter

V

CC

Operating supply

voltage

ICC Supply current

VPRST Programmable reset threshold

VT

VSENSE input threshold

VOL

RESET#1, RESET#2, VLOW#:

output voltage

IMR MR# pullup current

VlL

Noise rejection on VCC

VIH

Delay threshold crossing to

RESET out

Conditions

Valid RESET# output

Memory operaton

3.6V < VCC < 5.5V

2.7V < VCC < 3.6V

Memory access

RR4 RR3 RR2 RR1 RR0

0000 1

0 00 10

0 0 10 0

0 10 0 0

100 0 0

ISINK = 1.2mA, VCC = VPRST

min.

ISINK = 200mA, VCC = 1.2V

Min.

1

2.7

2.075

2.55

2.8

4.25

4.5

1.23

0.7 × VCC

Typ.

2.15

2.65

2.9

4.375

4.625

1.25

100

Max.

5.5

5.5

50

20

3

Units

V

V

µA

µA

µA

2.25

V

2.7

V

3.0

V

4.5

V

4.75

V

1.27

V

0.3

V

0.3

V

µA

0.3 × VCC V

V

2046 DCElect Table 2.0

RECOMMENDED OPERATING CONDITIONS

Temperature –40ºC to 85ºC.

Voltage

2.7V to 5.5V

ENDURANCE AND DATA RETENTION

The SMS24 is designed for applications requiring

100,000 erase/write cycles and unlimited read cycles. It

provides 100 years of secure data retention, with or

without power applied, after the execution of 100,000

erase/write cycles.

SUMMIT MICROELECTRONICS, Inc.

2048 2.4. 3/1/01

5

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