CAT823TTDI-GT3 ON Semiconductor, CAT823TTDI-GT3 Datasheet - Page 10

• Manufacturer Part Number: CAT823TTDI-GT3
• Description: IC MPU SUPERVISOR CIRC SOT23-5
• Manufacturer: ON Semiconductor
• Type: Simple Reset/Power-On Resetr

Specifications of CAT823TTDI-GT3

• Number Of Voltages Monitored: 1
• Output: Push-Pull, Totem Pole
• Reset: Active Low
• Reset Timeout: 140 ms Minimum
• Voltage - Threshold: 3.08V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: TSOT-23-5, TSOT-5, TSOP-5
• Monitored Voltage: 3 V or 3.3 V or 5 V
• Undervoltage Threshold: 3 V
• Overvoltage Threshold: 3.15 V
• Manual Reset: Resettable
• Watchdog: Yes
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.2 V
• Supply Current (typ): 4 uA (Typ)
• Maximum Power Dissipation: 571 mW
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: CAT823TTDI-G; CAT823TTDI-GT3TR; CAT823TTDI-GTR; CAT823TTDI-GTR

CAT823, CAT824, CAT825
APPLICATION NOTES
µP’s with Bidirectional Reset Pins
The RESET
like the 68HC11 allowing for a system reset issued by
the processor. The maximum pullup current that can
be sourced by the CAT82_L/M is 1.5mA (and by the
CAT82_T/R/S/Z/Y is 800µA) allowing the processor to
pull the output low even when the CAT82x is pulling it
high.
Power Transients
Generally short duration negative-going transients of
less than 2µs on the power supply at V
will not cause a reset condition. However the lower
the voltage of the transient the shorter the required
time to cause a reset output.
usually be remedied by the proper location of bypass
capacitance on the circuit board.
Figure 8. RESET
Doc. No. MD-3027 Rev. D
¯¯¯¯¯¯ output can be pulled low by processors
¯¯¯¯¯¯ Valid to 0 Volts V
WDI
V
CC
CAT823
These issues can
CC
RST
minimum
MR
GND
RESET
10
OUTPUT VALID CONDITIONS
The RESET
maintain a valid output down to a V
sink current below 0.8V a resistor can be connected
from RESET
arrangement will maintain a valid value on the RESET
output during both power up and down but will draw
current when the RESET
resistor value of about 100kΩ  s hould be adequate in
most situations to maintain a low condition valid
output down to V
100kΩ
¯¯¯¯¯¯ output uses a push-pull output which can
¯¯¯¯¯¯ to Ground (see Figure 8.)
RESET
CC
¯¯¯¯¯¯ output is in the high state. A
µC
equal to 0V.
Characteristics subject to change without notice
© 2010 SCILLC. All rights reserved.
CC
of 1.0 volts. To
¯¯¯¯¯¯
This