CAT811EUS-T Catalyst Semiconductor, CAT811EUS-T Datasheet

no-image

CAT811EUS-T

Manufacturer Part Number
CAT811EUS-T
Description
4-Pin Microprocessor Power Supply Supervisors
Manufacturer
Catalyst Semiconductor
Datasheet
The CAT811 and CAT812 are P supervisory circuits
that monitor power supplies in digital systems. The
CAT811 and CAT812 are direct replacements for the
MAX811 and MAX812 in applications operating over the
industrial temperature range; both have a manual reset
input.
These devices generate a reset signal, which is asserted
while the power supply voltage is below a preset threshold
level and for at least 140 ms after the power supply level
has risen above that level. The underlying floating gate
technology, AE
makes it possible to offer any custom reset threshold
value. Seven industry standard threshold levels are
© 2004 by Catalyst Semiconductor, Inc., Patent Pending
Characteristics subject to change without notice
Nominal Threshold
Voltage
4.63V
4.38V
4.00V
3.08V
2.93V
2.63V
2.32V
2(TM)
used by Catalyst Semiconductor,
Threshold Suffix
Designation
M
T
S
R
Z
L
J
1
offered to support +5.0 V, +3.3 V, +3.0 V and +2.5 V
systems.
The CAT811 features a RESET push-pull output (active
LOW) and the CAT812 features a RESET push-pull
output (active HIGH).
Fast transients on the power supply are ignored and the
output is guaranteed to be in the correct state at V
levels as low as 1.0 V.
The CAT811/812 are fully specified over the industrial
temperature range (-40˚C to 85˚C) and are available in
a compact 4-pin SOT143 package.
(RESET)
RESET
GND
1
2
4
3
V CC
Doc. No. 3005, Rev. P
cc
TM

Related parts for CAT811EUS-T

CAT811EUS-T Summary of contents

Page 1

... T 2.93V S 2.63V R 2.32V Z © 2004 by Catalyst Semiconductor, Inc., Patent Pending Characteristics subject to change without notice offered to support +5.0 V, +3.3 V, +3.0 V and +2.5 V systems. The CAT811 features a RESET push-pull output (active LOW) and the CAT812 features a RESET push-pull output (active HIGH). Fast transients on the power supply are ignored and the output is guaranteed the correct state at V levels as low as 1 ...

Page 2

...

Page 3

GND RESET 2 — — 2 RESET Patent Pending Ground Active LOW reset. RESET is asserted if V and remains low for at least 140ms after V Active HIGH reset. RESET ...

Page 4

Any pin with respect to ground .......... -0 +6.0 V Input Current, V ............................................. Output Current, RESET, RESET ...................... 20 mA Rate of Rise ............................................................. Continuous Power Dissipation Derate 4mW/˚C above 70˚C (SOT143) ...

Page 5

V = Full range -40˚C to +85˚C unless otherwise noted. Typical values L/M/J versions 3.3 V for T/S versions Reset Threshold Tempco V to Reset Delay (Note 2) CC Reset ...

Page 6

V = Full range -40˚C to +85˚C unless otherwise noted. Typical values L/M/J versions, V =3.3 V for T/S versions POWER-UP RESET TIMEOUT VS. TEMPERATURE 260 240 V CC =5V 220 200 ...

Page 7

The reset signal is asserted LOW for the CAT811 and HIGH for the CAT812 when the power supply voltage falls below the threshold trip voltage and remains asserted for at least 140ms after the power supply voltage has risen above ...

Page 8

To ensure that the CAT811 RESET pin known state when V between RESET pin and GND is recommended; the value is not critical. For the CAT812, a pull-up resistor from RESET pin needed. CC ...

Page 9

With 16k Bit Serial EEPROM Memory Watchdog Timer Manual Reset Input Active Low Reset Active High Reset Dual Polarity Reset Outputs Package DIP and SOIC 2.05 MAX 1.78 MIN 0.20 0.89 MAX 0.76 MIN 3.04 MAX 2.80 MIN 1.12 MAX ...

Page 10

L Updated Ordering Information 12/22/2003 M Updated Features Replaced power-up reset timeout vs. temperature graph with updated one Relaced VCC Transient Response graph with updated one 3/22/04 N Updated Features Updated Description Updated Ordering Information Added Top Markings Updated ...

Page 11

... Catalyst Semiconductor products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the Catalyst Semiconductor product could create a situation where personal injury or death may occur. ...

Related keywords