ST6246 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST6246

8-BIT OTP/EPROM MCU WITH LCD DRIVER, EEPROM AND A/D CONVERTER

STMicroelectronics 

ST62T46B/E46B

POWER SUPPLY SUPERVISOR (Continued)

4.6.1 PSS Operating Mode Description

The resistive voltage divider connected to the PSS

pin provides the internal comparator with the

nxVPSS/13 voltage. The resistive voltage divider

connected to the VDD pin provides the internal

comparator with the mxVDD/13 voltage. The n and

m values are selected with the PSS register. It

must be observed that the n and m values must be

selected, taking into consideration the following

electrical constraints:

Figure 32. Typical application using the PSS

0.5V < nxVPSS/13 at detection < VDD -2V

0.5V < mxVDD/13 at detection < VDD -2V

we must also have:

m-n-- VDD ≤ VPSS ≤ VDD

The PIF bit is the interrupt request flag of the PSS

device. This bit follows PSS comparator output.

VIN

L48xx

VDD

PSS

VSS

VR01837

53/72

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