STM809LWX6F STMicroelectronics, STM809LWX6F Datasheet - Page 5

• Manufacturer Part Number: STM809LWX6F
• Description: IC MPU RESET CIRC 4.63V SOT23
• Manufacturer: STMicroelectronics
• Type: Simple Reset/Power-On Resetr

Specifications of STM809LWX6F

• Number Of Voltages Monitored: 1
• Output: Push-Pull, Totem Pole
• Reset: Active Low
• Reset Timeout: 140 ms Minimum
• Voltage - Threshold: 4.63V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-3
• Monitored Voltage: 3 V or 3.3 V or 5 V
• Undervoltage Threshold: 4.56 V
• Overvoltage Threshold: 4.7 V
• Manual Reset: No
• Watchdog: No
• Battery Backup Switching: No
• Power-up Reset Delay (typ): 280 ms
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1 V
• Supply Current (typ): 15 uA
• Maximum Power Dissipation: 320 mW
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Chip Enable Signals: No
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 85 C
• Output Type: Active Low or Push-Pull
• Power Fail Detection: No
• Input Voltage: 7V
• Power Dissipation Pd: 320mW
• Supply Voltage Range: 1V To 5.5V
• No. Of Pins: 3
• Termination Type: SMD
• Ic Generic Number: 809
• Rohs Compliant: Yes
• Number Of Elements: 1
• Monitored Voltage 1 (typ): 3/3.3/5V
• Threshold Voltage 1 (max): 4.7V
• Watchdog Timer: No
• Reset Active Time: 280ms
• Package Type: SOT-23
• Operating Supply Voltage (min): 1V
• Operating Supply Voltage (max): 5.5V
• Reset Threshold Voltage (max): 4.7V
• Reset Threshold Voltage (min): 4.56V
• Family Name: STM809
• Power Dissipation: 320mW
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 3
• Supply Current: 0.015mA
• Filter Terminals: SMD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-3378-2

STM809/810/811/812
1
Description
The STM809/810/811/812 microprocessor reset circuits are low-power supervisory devices
used to monitor power supplies. They perform a single function: asserting a reset signal
whenever the V
V
STM811/812 also provide a push-button reset input (MR).
Figure 1.
1. For STM810
Figure 2.
1. For STM812
Table 2.
1. STM810/812 only
2. STM811/812 only
V
RST
RST
V
MR
CC
SS
CC
(2)
has risen above the preset threshold for a minimum period of time (t
(1)
Logic diagram (STM809/810)
Logic diagram (STM811/812)
Signal names
CC
supply voltage drops below a preset value and keeping it asserted until
Ground
Active-low reset output
Active-high reset output
Supply voltage
Manual reset input
MR
Doc ID 9873 Rev 5
STM809/810
STM811/812
V
V
V
V
CC
SS
CC
SS
RST (RST)
RST (RST)
(1)
(1)
rec
). The
Description
AI07832
AI07831
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