ST72F324K2TCR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST72F324K2TCR

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

12.10 Control pin characteristics

12.10.1 Asynchronous RESET pin

Subject to general operating conditions for VDD, fCPU, and TA unless otherwise specified.

Table 106. Asynchronous RESET pin

Symbol

Parameter

Conditions

Min

Typ

Max Unit

VIL

Input low level voltage(1)

0.16xVDD

VIH Input high level voltage(1)

0.85xVDD

V

Vhys Schmitt trigger voltage hysteresis(2)

) VOL Output low level voltage(3)

VDD = 5V, IIO = +2mA

2.5

0.2

0.5

t(s IIO Driving current on RESET pin

2

mA

uc RON Weak pull-up equivalent resistor VDD = 5V

20

d tw(RSTL)out Generated reset pulse duration

Internal reset sources

20

ro th(RSTL)in External reset pulse hold time(5)

2.5

te P tg(RSTL)in Filtered glitch duration(6)

30

120

kΩ

30

42(4)

µs

200

ns

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

o 2. Hysteresis voltage between Schmitt trigger switching levels.

bs 3. The IIO current sunk must always respect the absolute maximum rating specified in Section 12.2.2 and the sum of IIO (I/O

ports and control pins) must not exceed IVSS.

O 4. Data guaranteed by design, not tested in production.

- 5. To guarantee the reset of the device, a minimum pulse has to be applied to the RESET pin. All short pulses applied on the

t(s) RESET pin with a duration below th(RSTL)in can be ignored.

6. The reset network (the resistor and two capacitors) protects the device against parasitic resets, especially in noisy

Obsolete Produc environments.

166/193

Doc ID 13841 Rev 1

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