STM32F302CB View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

STM32F302CB

ARM Cortex-M4F 32b MCU+FPU, up to 256KB Flash+48KB SRAM 4 ADCs, 2 DAC ch., 7 comp, 4 PGA, timers, 2.0-3.6 V operation

STMicroelectronics 

STM32F302xx/STM32F303xx

Electrical characteristics

Figure 24. Recommended NRST pin protection

%XTERNAL

RESETCIRCUIT

6$$

.234

205

—&

)NTERNAL2ESET

&ILTER

6.3.16

-36

1. The reset network protects the device against parasitic resets.

2. The user must ensure that the level on the NRST pin can go below the VIL(NRST) max level specified in

Table 55. Otherwise the reset will not be taken into account by the device.

Timer characteristics

Symbol

Parameter

Conditions Min Typ

Max Unit

VIL(NPOR)(1) NPOR Input low level voltage

VIH(NPOR)(1) NPOR Input high level voltage

0.5VDDA

+ 0.2

0.475VDDA

- 0.2

V

Vhys(NPOR)(1)

NPOR Schmitt trigger voltage

hysteresis

200

mV

RPU

Weak pull-up equivalent resistor(2) VIN = VSS

25

40

55

kΩ

1. Guaranteed by design, not tested in production.

2. The pull-up is designed with a true resistance in series with a switchable PMOS. This PMOS contribution to

the series resistance is minimal (~10% order).

The parameters given in Table 56 are guaranteed by design.

Refer to Section 6.3.14: I/O port characteristics for details on the input/output alternate

function characteristics (output compare, input capture, external clock, PWM output).

Table 56. TIMx(1) characteristics

Symbol

Parameter

Conditions

Min

Max

Unit

tres(TIM)(2) Timer resolution time

fTIMxCLK = 72 MHz

(except TIM1/8)

fTIMxCLK = 144 MHz,

x= 1.8

fEXT(2)

ResTIM(2)

Timer external clock

frequency on CH1 to CH4

Timer resolution

fTIMxCLK = 72 MHz

TIMx (except TIM2)

TIM2

1

13.9

6.95

0

0

-

-

-

tTIMxCLK

-

ns

-

fTIMxCLK/2

36

16

32

ns

MHz

MHz

bit

Doc ID 023353 Rev 5

93/133

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