AAT3510/1/2/3/4/5/6/7/8/9
Micropower µP Reset with Watchdog Timer
3510.2004.08.1.4 5
Note 1: Over-temperature limits are guaranteed by design, not production tested.
Note 2: This is the minimum time RESET must be held low by an external pulldown source to set the active pullup flip-flop.
Note 3: Measured from RESET V
OL
to (0.8 x V
CC
), Open Circuit Output.
Note 4: Watchdog timeout period C is not available on AAT3513, AAT3514, and AAT3518.
Note 5: WDI is internally serviced within the watchdog period if WDI is left unconnected.
Note 6: The WDI input current is specified as the average input current when the WDI input is driven high or low. The WDI input is
designed for a three-stated-output device with a 10µA maximum leakage current and capable of driving a maximum capacitive load of
200pF. The three-state device must be able to source and sink at least 200µA when active.
Symbol Description Conditions Min Typ Max Units
Manual RESET Input (AAT3510, 3511, 3512, 3515, 3516, 3517, 3519)
V
IL
MR Input Threshold 0.3 x V
CC
V
IH
MR Input Threshold 0.7 x V
CC
V
MR Input Pulse Width 1 µs
MR Glitch Rejection 100 ns
MR Internal Pullup Resistance T
A
= 25°C 35 52 75 kΩ
MR to Reset Delay V
CC
= 5V 230 ns