RTS XCP-16-DB9-T Ficha de datos descargar pdf (Pagina 19)

Copyright © 2011 Future Technology Devices International Limited 18

Document Reference No.: FT_000204

DB9-USB Datasheet

Version 2.1

Clearance No.: FTDI# 130

5 Electrical details

5.1 USB

Parameter

Description

Minimum

Typical

Maximum

Units

Conditions

USB_VCC

Input Power Voltage*

4.25

5.0*

5.25

V

*Present when USB

cable is attached and

USB Host or Hub

powered.

Icc

USB current

30

50

mA

Table 5.1 – USB Electrical Details

5.2 RS232 Level UART

Parameter

Description

Minimum

Typical

Maximum

Units

Conditions

Vtrans

Transmitter output

voltage swing

± 5

V

RL = 3KΩ

Vrec

Receiver input voltage

range

±2.4

±25

V

Input resistance = 3KΩ

to 7KΩ

ESD HBM

±15

KV

RS-232 Inputs and

Outputs

Table 5.2 – RS232 Electrical Details

5.3 3.3V Level UART

Parameter

Description

Minimum

Typical

Maximum

Units

Conditions

Voh

Output Voltage High

2.2

2.7

3.2

V

I source = 1mA

Vol

Output Voltage Low

0.3

0.4

0.5

V

I sink = 2mA

Vin

Input Switching

Threshold

1.0

1.2

1.5

V

**

Table 5.3 – 3.3V Level UART Electrical Details

5.4 5V Level UART

Parameter

Description

Minimum

Typical

Maximum

Units

Conditions

Voh

Output Voltage High

3.2

4.1

4.9

V

I source = 2mA

Vol

Output Voltage Low

0.3

0.4

0.6

V

I sink = 2mA

Vin

Input Switching

Threshold

1.0

1.2

1.5

V

**

Table 5.4 – 5V Level UART Electrical Details

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