UMFT51AA datasheet(6/16 Pages) FTDI

Part #	UMFT51AA

Description	UMFT51AA is an FT51A DIP module that is compatible with an 8051 microcontroller

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Manufacturer	FTDI [Future Technology Devices International Ltd.]

Direct Link	http://www.ftdichip.com

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UMFT51AA-01 Datasheet

Version 1.0

Document Ref erence No.: FT_001141

Clearance No.: FTDI# 479

4.2 Signal Descriptions

Pin No.

Name

Type

Description

CN1-1 to CN1-8

Port 1

I/O Signals

Port 1 pins, P1.0 to P1.7 (DIO0 to DIO7). All FT51A

digital functions can be mixed to these pins; however

ADC features are not available for these pins. These

pins are 5 volt tolerant.

CN1-10 to CN1-17

Port 3

I/O Signals

Port 3 pins, P3.0 to P3.7 (DIO8 to DIO15). All FT51A

digital functions can be mixed to these pins; however

ADC features are not available for these pins. These

pins are 5 volt tolerant.

CN2-21 to CN2-13

Port 2

I/O Signals

Port 2 pins, P2.0 to P2.7 (AIO8 to AIO15). ADC features

are available for these pins however these pins are not

suitable for high frequency data transfers such as SPI.

These pins are not 5 volt tolerant.

CN2-2 to CN2-9

Port 0

I/O Signals

Port 0 pins, P2.0 to P0.7 (AIO8 to AIO15). ADC features

are available for these pins however these pins are not

suitable for high frequency data transfers such as SPI.

These pins are not 5 volt tolerant.

CN1-9

RST

Reset Pin

Active high reset.

CN1-20

GND

Ground

Ground 0 volts.

CN2-1

VCC5V

Power

5 volt power input when JP1 is open, 5 volt power

output when JP1 is closed and connected to upstream

USB port.

CN1-18 to CN1-19

NC

Not

Connected

Floating pin.

CN2-10 to CN2-12

NC

Not

Connected

Floating pin.

Table 4.1 – Module Pin Out Description

Pin No.

Name

Type

Description

CN4-1

VBUS

Power

5 volt power input. To enable bus power mode close JP1

CN4-2

DM

Signal

USB Data - from upstream device

CN4-3

DP

Signal

USB Data + from upstream device

CN4-4

GND

Ground

0 volt ground.

Table 4.2 – Upstream USB Port Pin Out Description

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