UP Supervisor Circuits

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Reset Circuit

SUMMARY 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 VCCsupply voltage drops below a preset value and keeping it asserted until VCChas rise

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STMICROELECTRONICS

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Reset circuit

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STMICROELECTRONICS

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S-Touch?enhanced 4-wire resistive touchscreen controller with PWM

Features ■ 4 GPIOs (8 mA drive, 12 mA sink at 3.3 V) ■ 1 additional, general purpose 12-bit ADC ■ Operating voltage 1.65 - 3.6 V ■ Integrated 4-wire touchscreen controller, pendown/ real-time mode, fully-autonomous ■ 1 PWM controller ■ Auto-hibernation and low power – Typ 0.5 μA in Hiberna

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STMICROELECTRONICS

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