ST72F324J6TCX View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST72F324J6TCX

8-bit MCU for automotive, 3.8 to 5.5V operating range with 8 to 32 Kbyte Flash, 10-bit ADC, 4 timers, SPI, SCI

STMicroelectronics 

Electrical characteristics

ST72324xx-Auto

12.4 LVD/AVD characteristics

12.4.1 Operating conditions with LVD

Subject to general operating conditions for TA.

Table 87. Operating conditions with LVD

Symbol

Parameter

Conditions

Min Typ Max Unit

VD level = high in option byte 4.0(1) 4.2

4.5

VIT+(LVD) Reset release threshold (VDD rise) VD level = med. in option byte(2) 3.55(1) 3.75 4.0(1)

VD level = low in option byte(2) 2.95(1) 3.15 3.35(1)

) VD level = high in option byte

V

3.8

4.0 4.25(1)

t(s VIT-(LVD) Reset generation threshold (VDD fall) VD level = med. in option byte(2) 3.35(1) 3.55

c VD level = low in option byte(2) 2.8(1) 3.0

3.75(1)

3.15(1)

du Vhys(LVD) LVD voltage threshold hysteresis(1)

ro VtPOR VDD rise time(1)

te P tg(VDD) Filtered glitch delay on VDD(1)

VIT+(LVD)-VIT-(LVD)

Not detected by the LVD

150

6µs/V

200 250 mV

100ms/V

40 ns

le 1. Data based on characterization results, not tested in production.

o 2. If the medium or low thresholds are selected, the detection may occur outside the specified operating voltage range.

Obs 12.4.2 Auxiliary voltage detector (AVD) thresholds

) - Subject to general operating conditions for TA.

t(s Table 88. AVD thresholds

uc Symbol

Parameter

Prod VIT+(AVD)

1 ⇒ 0 AVDF flag toggle threshold

(VDD rise)

Obsolete VIT-(AVD)

0 ⇒ 1 AVDF flag toggle threshold

(VDD fall)

Conditions

Min Typ Max Unit

VD level = high in option byte 4.4(1) 4.6 4.9

VD level = med. in option byte 3.95(1) 4.15 4.4(1)

VD level = low in option byte

VD level = high in option byte

3.4(1) 3.6 3.8(1)

V

4.2 4.4 4.65(1)

VD level = med. in option byte 3.75(1) 4.0 4.2(1)

VD level = low in option byte 3.2(1) 3.4 3.6(1)

Vhys(AVD) AVD voltage threshold hysteresis

ΔVIT-

Voltage drop between AVD flag set and

LVD reset activated

VIT+(AVD)-VIT-(AVD)

VIT-(AVD)-VIT-(LVD)

200

mV

450

1. Data based on characterization results, not tested in production.

150/193

Doc ID 13841 Rev 1

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