ST6220CD3/HWD 查看數據表（PDF） - STMicroelectronics

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ST6220CD3/HWD

8-BIT MCUs WITH A/D CONVERTER, TWO TIMERS, OSCILLATOR SAFEGUARD & SAFE RESET

STMicroelectronics 

ST6208C/ST6209C/ST6210C/ST6220C

11.8 I/O PORT PIN CHARACTERISTICS

11.8.1 General Characteristics

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

Symbol

Parameter

Conditions

Min

Typ 1)

Max

Unit

VIL

Input low level voltage 2)

VIH Input high level voltage 2)

0.7xVDD

0.3xVDD

V

Vhys

Schmitt trigger voltage hysteresis 3) VDD=5V

VDD=3.3V

200

400

mV

200

400

IL

Input leakage current

VSS≤VIN≤VDD

(no pull-up configured)

0.1

1

µA

RPU

Weak pull-up equivalent resistor 4) VIN=VSS

VDD=5V

VDD=3.3V

40

80

110

230

350

700

kΩ

CIN I/O input pin capacitance

5

10

pF

COUT I/O output pin capacitance

5

10

pF

tf(IO)out Output high to low level fall time 5) CL=50pF

30

tr(IO)out Output low to high level rise time 5) Between 10% and 90%

35

ns

tw(IT)in External interrupt pulse time 6)

1

tCPU

Figure 61. Typical RPU vs. VDD with VIN = VSS

Rpu [Khom]

350

Ta=-40°C

300

Ta=25°C

250

Ta=95°C

Ta=125°C

200

150

100

50

3

4

5

6

VDD [V]

Notes:

1. Unless otherwise specified, typical data are based on TA=25°C and VDD=5V.

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

3. Hysteresis voltage between Schmitt trigger switching levels. Based on characterization results, not tested.

4. The RPU pull-up equivalent resistor is based on a resistive transistor. This data is based on characterization results,

not tested in production.

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

6. To generate an external interrupt, a minimum pulse width has to be applied on an I/O port pin configured as an external

interrupt source.

Figure 62. Two typical Applications with unused I/O Pin

VDD

10kΩ

ST62XX

UNUSED I/O PORT

10kΩ

UNUSED I/O PORT

ST62XX

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