STM690AM6F STMicroelectronics, STM690AM6F Datasheet - Page 19

• Manufacturer Part Number: STM690AM6F
• Description: SUPERVISOR 5V SWITCH OVER 8SOIC
• Manufacturer: STMicroelectronics
• Type: Simple Reset/Power-On Resetr

Specifications of STM690AM6F

• Number Of Voltages Monitored: 1
• Output: Push-Pull, Totem Pole
• Reset: Active Low
• Reset Timeout: 140 ms Minimum
• Voltage - Threshold: 4.65V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Monitored Voltage: 1 V to 5.5 V
• Output Type: Active Low, Push-Pull
• Manual Reset: Not Resettable
• Watchdog: Watchdog
• Battery Backup Switching: Backup
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1 V
• Supply Current (typ): 60 uA
• Maximum Power Dissipation: 320 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Power Fail Detection: Yes
• Undervoltage Threshold: 4.5 V
• Overvoltage Threshold: 4.75 V
• Power-up Reset Delay (typ): 280 ms
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-3824-2

STM690A/692A/703/704/802/805/817/818/819
2.12
Battery freshness seal (STM817/818/819)
The battery freshness seal disconnects the backup battery from internal circuitry and V
until it is needed. This allows an OEM to ensure that the backup battery connected to V
will be fresh when the final product is put to use. To enable the freshness seal:
1.
2.
3.
4.
Use the same procedure for the STM818, but ground E
battery freshness seal is enabled (disconnecting the backup battery from internal circuitry
and anything connected to V
Figure 15. Using a SuperCap™
Figure 16. Freshness seal enable waveform
Connect a battery to V
Ground PFO
Bring V
the reset timeout period and
Bring V
CC
CC
above the reset threshold and hold it there until reset is deasserted following
down again
E
(STM818)
RST
PFO
(STM817/819)
V
CON
CC
BAT
(Figure
OUT
V
(Externally held at 0V)
(Externally held at 0V)
Doc ID 10522 Rev 10
5V
RST
), it remains enabled until V
16)
V
V
CC
BAT
STMXXX
GND
t rec
V
RST
OUT
E
at 1/2 t
Seal enabled
PFO out state latched
at 1/2 t
Seal Enabled
CON
out state latched
rec
rec
, Freshness
, Freshness
CON
To external SRAM
To µP
instead of PFO. Once the
CC
is brought above V
Operation
RST
.
AI08805
AI08806
19/43
OUT
BAT