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UM232H

UM232H Single Channel USB Hi-Speed FT232H Development Module Datasheet

Future Technology 

Document Reference No.: FT_000367

UM232H Single Channel USB Hi-Speed FT232H Development Module

Datasheet Version 1.2

Clearance No.: FTDI# 198

Pin No. Name Type

Description

J2-1

SLD

Shield to GND USB Cable Shield shorted to GND via a 0Ω resistor.

J2-2

VIO

PWR

1.8 to +3.3V supply to the UART Interface and ACBUS I/O pins

J2-3

3V3

Output/Input

+3.3V output from the integrated L.D.O. regulator if the UM232H is running on

5V self or bus powered designs. Therefore this pin can be used to supply the

FT232HL’s VCCIO pin by connecting this pin to J2-2 (VIO). This pin can also be

an input if the UM232H is running on 3.3V self powered designs.

J2-4

PU2

Control

Pull up resistor pin connection 1. Connect to J1-3 (USB) in a self powered

configuration.

J2-5

PU1

Control

Pull up resistor pin connection 2. Connect to J1-4 (RST#) in a self powered

configuration.

J2-6

GND

PWR

Module Ground Supply Pins

J2-7

AD0

Output

Configurable Output Pin, the default configuration is Transmit Asynchronous

Data Output / Handshake Signal..

J2-8

AD1

Input

Configurable Input Pin, the default configuration is Receiving Asynchronous Data

Input / Handshake Signal..

J2-9

AD2

Output

Configurable Output Pin, the default configuration is Request to Send Control

Output / Handshake Signal.

J2-10 AD3

Input

Configurable Input Pin, the default configuration is Clear To Send Control Input /

Handshake Signal.

J2-11 AD4

Output

Configurable Output Pin, the default configuration is Data Terminal Ready

Control Output / Handshake Signal.

J2-12 AD5

Input

Configurable Input Pin, the default configuration is Data Set Ready Control Input

/ Handshake Signal.

J2-13 AD6

Input

Configurable Input Pin, the default configuration is Data Carrier Detect Control

Input / Handshake Signal..

Configurable Input Pin, the default configuration is RI#, Ring Indicator Control

J2-14 AD7

Input

Input/ Handshake Signal. When remote wake up is enabled in the EEPROM

taking RI# low >20ms can be used to resume the PC USB host controller from

suspend.

Table 4.3 : UM232H Connector J2 Signal Description

Notes:

1. When used in Input Mode, the input pins are pulled to VCCIO via internal 75kΩ (approx.) resistors. These

pins can be programmed to gently pull low during USB suspend (PWREN# = “1”) by setting an option in the

EEPROM.

10

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