Datasheet

Description STM6502, STM6503, STM6504, STM6505
10/29 Doc ID 16101 Rev 6
1.2 Pin descriptions
1.2.1 Power supply (V
CC
)
This pin is used to provide the power to the device and to monitor the power supply.
A 0.1 µF decoupling ceramic capacitor is recommended to be connected between the V
CC
and V
SS
pins.
1.2.2 Ground (V
SS
)
This is the supply ground for the device.
1.2.3 Primary Smart Reset input (SR0)
The primary push-button Smart Reset input, active-low pin is connected to the first push-
button switch.
1.2.4 Secondary Smart Reset input (SR1)
The secondary push-button Smart Reset input, active-low pin is connected to the second
push-button switch. Keeping both Smart Reset inputs SR0
and SR1 active for longer than
t
SRC
activates the reset output pulse.
Figure 7. STM6502, STM6503 timing
Reset is asserted “low” right after the Smart Reset setup delay (t
SRC
) has been met and
returns to high after the t
REC
period.
AM00327
RST
SR0
SR1
t
SRC
t
REC