STM6505 STMicroelectronics, STM6505 Datasheet - Page 7

• Manufacturer Part Number: STM6505
• Description: Dual push-button smart reset
• Manufacturer: STMicroelectronics

Specifications of STM6505

• 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

STM6502, STM6503, STM6504, STM6505
Table 2.
Symbol
SRC
V
RST
SRE
TSR
BLD
SR0
SR1
V
V
NC
BAT
CC
SS
output
Output
Output
Supply
Supply
Input/
Input
Input
Input
Input
Input
Input
Signal names
Open-drain reset output, active-low.
Battery low detect output, active-low, open-drain. STM6505 only.
Primary push-button Smart Reset input. Active-low, with or without internal
65 kΩ pull-up to V
Secondary push-button Smart Reset input - combines with the primary push-
button reset to provide setup delay time before reset. Active-low, with or without
internal 65 kΩ pull-up to V
Secondary push-button Smart Reset input - provides instant Smart Reset. SRE
is edge-triggered with a special debounce time (t
the falling edge after a valid reset period. Active-high, no internal pull-up to V
STM6504 only.
Smart Reset input delay setup control: connect to an external capacitor to adjust
the delay setup time (t
A three-state Smart Reset input delay setup control. When connected to
ground, t
t
either permanently grounded, permanently connected to V
left open. If 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
Supply voltage input. Power supply for the device and an input for the monitored
supply voltage. A 0.1 µF decoupling ceramic capacitor is recommended to be
connected between the V
Battery voltage monitoring input. STM6505 only.
Ground
No connect (not bonded); should be connected to V
SRC
= 10 s (all times are minimum). TSR is a DC-type input, intended to be
SRC
SS
Doc ID 16101 Rev 6
= 2 s; when left open, t
pins. STM6503 and STM6504 only.
CC
(product options).
SRC
CC
CC
). STM6502 and STM6505 only.
and V
(product options).
Description
SS
SRC
pins.
= 6 s; when connected to V
DEBOUNCE
SS
.
CC
= 240 ms min.) at
or permanently
Description
CC
,
CC
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.