STM6710FWB6F Datasheet, PDF (11/21 Pages) STMicroelectronics – Low voltage, high accuracy, triple/quad voltage microprocessor

STM6700, STM6710
Operation
2.3
Unused inputs
Connect unused monitor inputs to a supply voltage greater in magnitude than their specified
threshold voltages. For unused VxIN adjustable inputs connect a 1 MΩ resistor between
unused input and V2IN or (V_CC) to limit the bias current. Use V2IN for normal operation
(device power supply pin). Do not connect unused monitor inputs to ground or allow them to
float.
2.4
Adding manual reset capability
Figure 8 shows a circuit which can be used to add manual reset capability for the STM6710.
Depressing the push button switch short-circuits the analog input to ground and initiates
a RESET pulse. The switch must be open for at least 140 ms in order to deassert the
RESET output. No external switch debounce is required. A small capacitor may be used to
improve noise immunity. Figure 8 shows the addition of the manual reset capability.
Figure 8. Adding manual reset capability for STM6710 input
V1IN
V2IN
V3IN
R1
RESET
V4IN
(ADJUSTABLE
INPUT)
R2
GND
AM04624v1
Doc ID 16887 Rev 2
11/21