CAT811 CATALYST [Catalyst Semiconductor], CAT811 Datasheet - Page 8

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

To ensure that the CAT811 RESET pin is in a 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 to V
The CAT811/812 can interface with P/ C bi-directional reset pins by connecting a 4.7 k resistor in series with the
CAT811/812 reset output and the P/ C bi-directional reset pin.
Power
Supply
Doc. No. 3005, Rev. P
Power
Supply
RESET
RESET
RESET
RESET
RESET
CC
is needed.
GND
V CC
RESET
CAT811
GND
V CC
RESET
Bi-directional I/O Pin
4.7k
100k
8
Power
Supply
RESET
INPUT
BUF
CC
GND
µP
is under 1.0 V, a 100 k
Buffered
RESET
(For example: 68HC11)
GND
V CC
RESET
pull-down resistor
Patent Pending
100k