SPC574S60 datasheet(33/77 Pages) STMICROELECTRONICS

Part #	SPC574S60

Description	32-bit Power Architecture microcontroller for automotive ASILD applications

PDF	77 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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33 / 77 page

DS10601 Rev 6

33/77

SPC574Sx

Electrical characteristics

Figure 4. Start-up reset requirements

Figure 5 describes the device behavior depending on the supply signal on PORST:

PORST does not go low enough: it is filtered by input buffer hysteresis. The device

remains in the current state.

PORST goes low enough, but not for long enough: it is filtered by a low pass filter. The

device remains in the current state.

The PORST generates a reset:

PORST low but initially filtered during at least WFRST. Device remains initially in

current state.

PORST potentially filtered until WNFRST. Device state is unknown. It may either be

reset or remains in current state depending on extra condition (PVT — process,

voltage, temperature).

PORST asserted for longer than WNFRST. The device is under hardware reset.

VIL

VDD

device reset forced by RESET

VDDMIN

RESET

VIH

device start-up phase

SPC574S60 Datasheet(PDF) 33 Page - STMicroelectronics