STM6504 STMicroelectronics, STM6504 Datasheet - Page 12

• Manufacturer Part Number: STM6504
• Description: Dual push-button smart reset
• Manufacturer: STMicroelectronics

Specifications of STM6504

• Adjustable Smart Reset Setup Delay (tsrc): by external capacitor or three-state logic (product options)
• Operating Temperature: industrial grade –40 °C to +85 °C
• Tdfn8 Package: 2 mm x 2 mm x 0.75 mm

Description
1.2.7
1.2.8
1.2.9
1.2.10
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Programmable Smart Reset input delay (TSR pin) – STM6503 and
STM6504 only
The TSR pin allows the user to program the setup time before the push-button action is
validated by the reset output. It is controlled by different voltage levels on the three-state
TSR input pin: when connected to ground, t
connected to V
be either permanently grounded, permanently connected to V
If it is left open, for improved system glitch immunity it is strongly recommended to connect
a 0.1 µF decoupling ceramic capacitor between the TSR and V
RST is the active-low, open-drain reset output in the Smart Reset family.
V
external resistor divider is to be used to set the actual battery voltage threshold.
Battery low detect output (BLD) – STM6505 only
The battery low detect output is controlled by the V
active-low, open-drain, with no pull-up.
Figure 9.
Reset output (RST)
Battery monitoring input (V
V BATTH
BAT
V BAT
RST
SR0
SR1
BLD
is an input for monitoring the battery voltage. V
STM6505 timing
CC
, t
SRC
= 10 s (all times are minimum). TSR is a DC-type input, intended to
Doc ID 16101 Rev 6
BAT
) – STM6505 only
SRC
t SRC
= 2 s; when left open, t
STM6502, STM6503, STM6504, STM6505
BAT
BAT
voltage monitoring input and is
threshold is 1.25 V, fixed, and an
t REC
CC
SS
or permanently left open.
pins.
SRC
= 6 s; when
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