ESP32-C3 datasheet(29/40 Pages) ESPRESSIF

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Electrical Characteristics

4.4 DC Characteristics (3.3 V, 25 °C)

Table 11: DC Characteristics (3.3 V, 25 °C)

Symbol

Parameter

Min

Typ

Max

Unit

CIN

Pin capacitance

—

VIH

High-level input voltage

0.75 × VDD1

—

VDD1+ 0.3

VIL

Low-level input voltage

–0.3

—

0.25 × VDD1

IIH

High-level input current

—

IIL

Low-level input current

—

VOH

High-level output voltage

0.8 × VDD1

—

VOL

Low-level output voltage

—

0.1 × VDD1

IOH

High-level source current (VDD1= 3.3 V,

VOH >= 2.64 V, PAD_DRIVER = 3)

—

IOL

Low-level sink current (VDD1= 3.3 V, VOL =

0.495 V, PAD_DRIVER = 3)

—

RP U

Pull-up resistor

—

kΩ

RP D

Pull-down resistor

—

kΩ

VIH_nRST

Chip reset release voltage

0.75 × VDD1

—

VDD1+ 0.3

VIL_nRST

Chip reset voltage

–0.3

—

0.25 × VDD1

1 VDD is the I/O voltage for a particular power domain of pins.

2 V

OH and VOL are measured using high-impedance load.

4.5 ADC Characteristics

Table 12: ADC Characteristics

Symbol

Parameter

Min

Max

Unit

DNL (Differential nonlinearity)1

ADC connected to an external

–7

LSB

100 nF capacitor; DC signal input;

INL (Integral nonlinearity)

ambient temperature at 25 °C;

–12

LSB

Wi-Fi off

Sampling rate

—

Msps

Effective Range

ATTEN0

750

ATTEN1

1050

ATTEN2

1300

ATTEN3

2500

1 To get better DNL results, you can sample multiple times and apply a filter, or calculate the average value.

4.6 Current Consumption

The current consumption measurements are taken with a 3.3 V supply at 25 °C of ambient temperature at the RF

port. All transmitters’ measurements are based on a 100% duty cycle.

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