C8051F861-C-GS datasheet(9/328 Pages) SILABS

Part #	C8051F861-C-GS

Description	Low-Cost 8-bit MCU Family with up to 8 kB of Flash

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Manufacturer	SILABS [Silicon Laboratories]

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9 / 328 page

Rev. 1.0

8

1. Electrical Specifications

1.1. Electrical Characteristics

All electrical parameters in all tables are specified under the conditions listed in Table 1.1, unless stated

otherwise.

Table 1.1. Recommended Operating Conditions

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

Operating Supply Voltage on VDD

VDD

2.2

—

3.6

V

System Clock Frequency

fSYSCLK

0

—

25

MHz

Operating Ambient Temperature

TA

Commercial Grade Devices

(-GM, -GS, -GU)

–40

—

85

°C

Industrial Grade Devices

(-IM, -IS, -IU)

–40

—

125

°C

Note: All voltages with respect to

GND

Table 1.2. Power Consumption

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

Digital Core Supply Current (–Gx Devices, -40°C to +85°C)

Normal Mode—Full speed

with code executing from flash

IDD

FSYSCLK = 24.5 MHz

2

—

4.45

4.85

mA

FSYSCLK = 1.53 MHz

2

—

915

1150

μA

FSYSCLK = 80 kHz

3, T

A = 25 °C

—

250

290

μA

FSYSCLK = 80 kHz

3

—

250

380

μA

Idle Mode—Core halted with

peripherals running

IDD

FSYSCLK = 24.5 MHz

2

—

2.05

2.3

mA

FSYSCLK = 1.53 MHz

2

—

550

700

μA

FSYSCLK = 80 kHz

3, T

A = 25 °C

—

125

130

μA

FSYSCLK = 80 kHz

3

—

125

200

μA

Stop Mode—Core halted and

all clocks stopped, Supply

monitor off.

IDD

Internal LDO ON, TA = 25 °C

—

105

120

μA

Internal LDO ON

—

105

170

μA

Internal LDO OFF

—

0.2

—

μA

Notes:

1. Currents are additive. For example, where

IDD is specified and the mode is not mutually exclusive, enabling the

functions increases supply current by the specified amount.

2. Includes supply current from internal regulator, supply monitor, and High Frequency Oscillator.

3. Includes supply current from internal regulator, supply monitor, and Low Frequency Oscillator.

4. ADC0 always-on power excludes internal reference supply current.

5. The internal reference is enabled as-needed when operating the ADC in burst mode to save power.

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