CAT810 ONSEMI [ON Semiconductor], CAT810 Datasheet - Page 7

• Manufacturer Part Number: CAT810
• Description: 3-Pin Microprocessor Power Supply Supervisors
• Manufacturer: ONSEMI [ON Semiconductor]

© 200 SCILLC. All rights reserved.
Characteristics subject to change without notice
VALID RESET WITH V
To ensure that the CAT809 RESET pin is in a known
state when V
between RESET pin and GND is recommended. For
the CAT80, a pull-up resistor from RESET pin to V
is needed.
BI-DIRECTIOnAL RESET PIn InTERfACInG
The CAT809/80 can interface with µP/µC bi-directional
reset pins by connecting a 4.7kΩ resistor in series with
the CAT809/80 reset output and the µP/µC bi-directional
reset pin.
Figure 3. reSeT Valid with V
Power
Supply
CC
is under 1.0V, a >10kΩ pull-down resistor
CC
CAT809
Power
Supply
unDER 1.0V
GND
V
CC
RESET
figure 5. Bi-directional Reset Pin Interfacing
CC
CAT809
under 1.0V
GND
V
CC
RESET
10kΩ
Bi-directional
CC
I/O Pin
Power
Supply
7
RESET
INPUT
figure 4. RESET Valid with V
BUF
GND
µP
V
CC
CAT810
GND
V
CC
Buffered
RESET
RESET
(For example:
68HC11)
CAT803, CAT809, CAT810
10kΩ
CC
Doc. No. MD-3004, Rev. AA
under 1.1V