CAT803 Datasheet, PDF (2/14 Pages) Catalyst Semiconductor – 3-Pin Microprocessor Power Supply Supervisors

CAT803, CAT809, CAT810
Pin Descriptions
Pin Number
CAT803 CAT809 CAT810
1
1
1
2
2
—
—
—
2
3
3
3
Name
GND
RESET
RESET
V_CC
Description
Ground
Active LOW reset. RESET is asserted if V_CC falls below the reset thresh-
old and remains low for at least 140ms after V_CC rises above the reset
threshold.
Active HIGH reset. RESET is asserted if V_CC falls below the reset thresh-
old and remains high for at least 140ms after V_CC rises above the reset
threshold.
Power supply voltage that is monitored.
BLOCK DIAGRAMS
V_CC
V_CC
V_CC
TOLERANCE
+
BIAS
–
VOLTAGE
REFERENCE
DIGITAL
DELAY
GND
CAT803
RESET
V_CC
V_CC
TOLERANCE
+
BIAS
–
DIGITAL
DELAY
V_CC
RESET
VOLTAGE
REFERENCE
GND
CAT809
V_CC
V_CC
TOLERANCE
+
BIAS
–
DIGITAL
DELAY
V_CC
RESET
VOLTAGE
REFERENCE
GND
CAT810
Doc. No. MD-3004, Rev. AA

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Characteristics subject to change without notice