ESP32C3 datasheet(32/44 Pages) ESPRESSIF

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Electrical Characteristics

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

2 kSPS means kilo samples-per-second.

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.

Table 16: Current Consumption Depending on RF Modes

Work mode

Description

Peak (mA)

Active (RF working)

802.11b, 1 Mbps, @21 dBm

335

802.11g, 54 Mbps, @19 dBm

285

802.11n, HT20, MCS7, @18.5 dBm

276

802.11n, HT40, MCS7, @18.5 dBm

278

802.11b/g/n, HT20

802.11n, HT40

Table 17: Current Consumption Depending on Work Modes

Work mode

Description

Typ

Unit

Modem-sleep1, 2

The CPU is

powered on3

160 MHz

80 MHz

Light-sleep

—

130

µA

Deep-sleep

RTC timer + RTC memory

µA

Power off

CHIP_PU is set to low level, the chip is powered off

µA

1 The current consumption figures in Modem-sleep mode are for cases where the CPU is powered on and

the cache idle.

2 When Wi-Fi is enabled, the chip switches between Active and Modem-sleep modes. Therefore, current

consumption changes accordingly.

3 In Modem-sleep mode, the CPU frequency changes automatically. The frequency depends on the CPU

load and the peripherals used.

4.7 Reliability

Table 18: Reliability Qualifications

Test Item

Test Conditions

Test Standard

HTOL (High Temperature

Operating Life)

125 °C, 1000 hours

JESD22-A108

ESD (Electro-Static

Discharge Sensitivity)

HBM (Human Body Mode)1± 2000 V

JS-001

CDM (Charge Device Mode)2± 1000 V

JS-002

Latch up

Current trigger ± 200 mA

JESD78

Voltage trigger 1.5 × VDDmax

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