CAT811 CATALYST [Catalyst Semiconductor], CAT811 Datasheet - Page 3

• Manufacturer Part Number: CAT811
• Description: 4-Pin Microprocessor Power Supply Supervisors
• Manufacturer: CATALYST [Catalyst Semiconductor]

Patent Pending
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GND
RESET
RESET
MR
V
CC
Ground
Active LOW reset. RESET is asserted if V
and remains low for at least 140ms after V
Active HIGH reset. RESET is asserted if V
threshold and remains high for at least 140ms after V
the reset threshold.
Manual Reset Input. A logic LOW on MR asserts RESET. RESET remains
active as long as MR is LOW and for 140ms after MR returns HIGH. The
active low input has an internal 20k pull-up resistor. The input should be left
open if not used. It can be driven by TTL or CMOS logic or shorted to ground
by a switch.
Power supply voltage that is monitored.
3
CC
CC
CC
falls below the reset threshold
rises above the reset threshold.
falls below the reset
CC
rises above
Doc. No. 3005, Rev. P