CP2105EK View Datasheet(PDF) - Silicon Laboratories

Part Name

Description

Manufacturer

CP2105EK

SINGLE-CHIP USB TO UART BRIDGE

Silicon Laboratories 

CP2105

Table 3. UART and Suspend I/O DC Electrical Characteristics

VDD = 3.0 to 3.6 V, VIO = 1.8 V to VDD, –40 to +85 °C unless otherwise specified.

Parameters

Conditions

Min

Output High Voltage (VOH)

Output Low Voltage (VOL)

Input High Voltage (VIH)

Input Low Voltage (VIL)

Input Leakage Current

Maximum Input Voltage

IOH = –10 µA

IOH = –3 mA

IOH = –10 mA

IOL = 10 µA

IOL = 8.5 mA

IOL = 25 mA

Weak Pull-Up Off

Weak Pull-Up On, VIO = 0 V

Open drain, logic high (1)

VIO – 0.1

VIO – 0.2

—

—

—

—

0.7 x VIO

—

—

—

—

Typ

—

—

VIO – 0.4

—

—

0.6

—

—

—

25

—

Max

—

—

—

0.1

0.4

—

—

0.6

1

50

5.8

UNITS

V

V

V

V

µA

V

Table 4. Reset Electrical Characteristics

–40 to +85 °C unless otherwise specified.

Parameter

Conditions

RST Input High Voltage

RST Input Low Voltage

Minimum RST Low Time to

Generate a System Reset

Min

Typ

0.75 x VIO —

—

—

15

—

Max Units

—

V

0.6

V

—

µs

Table 5. Voltage Regulator Electrical Specifications

–40 to +85 °C unless otherwise specified.

Parameter

Conditions

Min Typ Max Units

Input Voltage Range

3.0 — 5.25 V

Output Voltage

Output Current = 1 to 100 mA*

3.3 3.45 3.6 V

VBUS Detection Input Threshold

2.5 —

—

V

Bias Current

—

— 120 µA

*Note: The maximum regulator supply current is 100 mA. This includes the supply current of the CP2105.

Table 6. GPIO Output Specifications

–40 to +85 °C unless otherwise specified.

Parameter

RS-485 Active Time After Stop Bit

TX Toggle Rate

RX Toggle Rate

*Note: Bit-time is calculated as 1 / baud rate.

Conditions

Min

Typ

Max

Units

—

1

—

bit time*

—

7.5

—

Hz

—

7.5

—

Hz

6

Rev. 1.0

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