STM1817RWX7F STMicroelectronics, STM1817RWX7F Datasheet - Page 8

• Manufacturer Part Number: STM1817RWX7F
• Description: IC RESET CIRCUIT 2.55V PP SOT-23
• Manufacturer: STMicroelectronics
• Type: Simple Reset/Power-On Resetr

Specifications of STM1817RWX7F

• Number Of Voltages Monitored: 1
• Output: Push-Pull, Totem Pole
• Reset: Active High
• Reset Timeout: 100 ms Minimum
• Voltage - Threshold: 2.55V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-3
• Monitored Voltage: 3 V or 3.3 V or 5 V
• Undervoltage Threshold: 2.47 V
• Overvoltage Threshold: 2.64 V
• Manual Reset: Resettable
• Watchdog: No
• Battery Backup Switching: No
• Power-up Reset Delay (typ): 2 us
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1 V
• Supply Current (typ): 4 uA
• Maximum Power Dissipation: 320 mW
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 105 C
• Chip Enable Signals: No
• Minimum Operating Temperature: - 40 C
• Output Type: Push-Pull
• Power Fail Detection: No
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-4971-2

Description
1.2.3
1.2.4
1.2.5
1.2.6
8/25
Active-high RST output (push-pull)
Pulses high when V
threshold. It remains high for t
Active-low RST output (open-drain with internal 5.5 kΩ pull-up) with
manual reset detect
Pulses low when V
It remains low for t
manual reset is released (see
V
Supply voltage and input for V
V
Ground, is the reference for the power supply. It must be connected to the system ground.
Table 3.
Table 4.
Table 5.
Table 6.
CC
SS
Pin
Pin
Pin
Pin
1
2
3
1
2
3
1
2
3
1
2
3
Name
Name
Name
RST
Name
V
RST
V
V
V
RST
V
RST
V
V
V
CC
SS
CC
SS
CC
SS
CC
SS
STM1810/STM1815
STM1811/STM1816
STM1812/STM1817
STM1813/STM1818
Active-low reset output (push-pull)
Supply voltage and input for reset threshold monitor
Ground
Active-low reset output (open-drain, with internal 5.5 kΩ pull-up resistor)
Supply voltage and input for reset threshold monitor
Ground
Active-high reset output (push-pull)
Supply voltage and input for reset threshold monitor
Ground
Active-low reset output (open-drain, with internal 5.5 kΩ pull-up) with push-
button/manual reset detect
Supply voltage and input for reset threshold monitor
Ground
PBRST
CC
CC
drops below V
drops below V
after V
rec
RST
Figure
Doc ID11464 Rev 8
CC
after V
comparator.
rises above the reset threshold, or after the external
RST
9). RST output has an internal 5.5 kΩ pull-up resistor.
RST
CC
, or RST is externally pulled low for at least 1.5 µs.
, and stays high as long as V
STM1810/1811/1812/1813/1815/1816/1817/1818
rises above the reset threshold.
Function
Function
Function
Function
CC
is below the reset