ST72774 datasheet(21/144 Pages) STMICROELECTRONICS

Part #	ST72774

Description	8-BIT USB MCU FOR MONITORS, WITH UP TO 60K OTP, 1K RAM, ADC, TIMER, SYNC, TMU, PWM/BRM, H/W DDC & I2C

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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ST72774/ST727754/ST72734

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RESET (Cont’d)

Figure 10. Low Voltage Detector Functional Diagram

Figure 11. LVD Reset Signal Output

Note: See electrical characteristics section for

values of VTRH, VTRL and VTRM

Figure 12. Reset Timing Diagram

Note: Refer to Electrical Characteristics for values of tDDR, tOXOV and tRL

LVD

RESET

RESPOF

VDD

FROM

WATCHDOG

RESET

INTERNAL

RESET

VDD

VTRH

VTRL

VTRM

VDD

OSCIN

fCPU

FFFF

FFFE

PC

RESET

WATCHDOG RESET

tDDR

tOXOV

4096 CPU

CLOCK

CYCLES

DELAY

tRL

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