Copyright © Future Technology Devices International Limited

3

FT51A Advanced MCU with 8051 Compatible Core IC Datasheet

Version 1.5

Doc ument N o.: FT _000877

C learance N o.: FT DI#420

Table of Contents

1 Typical Applications...................................................... 2

1.1 Part Numbers ......................................................................... 2

1.2 USB Compliant ........................................................................ 2

2 Device Pin Out and Signal Description ........................... 5

2.1 Pin Out - 28 pin SSOP............................................................. 5

2.2 Pin Out - 32 pin WQFN ........................................................... 6

2.3 Pin Out - 44-Pin LQFP............................................................. 7

2.4 Pin Out - 48-Pin WQFN ............................................................ 8

2.5 Pin Configuration Description .................................................. 9

3 Functional Description................................................ 11

3.1 Key Features..........................................................................11

3.1.1

Functional Integration ............................................................................. 11

3.1.2

8051 Core ............................................................................................. 11

3.2 Functional Block Descriptions .................................................12

3.2.1

8051 Ports 0 - 3..................................................................................... 12

3.2.2

Timers and Watchdog.............................................................................. 12

3.2.3

PLL Control............................................................................................ 13

3.2.4

16KB Multi-Time Programmable (MTP) memory ........................................... 13

3.2.5

8KB Data RAM ....................................................................................... 13

3.2.6

16KB Shadow RAM ................................................................................. 13

3.2.7

Special Function Register ......................................................................... 13

3.2.8

IO Registers .......................................................................................... 13

3.2.9

LDO Regulators ...................................................................................... 13

3.2.10

BCD Detect ........................................................................................... 13

3.2.11

USB XCVR ............................................................................................. 14

3.2.12

IO Multiplexer ........................................................................................ 14

3.2.13

I2C Master............................................................................................. 14

3.2.14

I2C Slave .............................................................................................. 15

3.2.15

SPI Slave .............................................................................................. 15

3.2.16

SPI Master ............................................................................................ 15

3.2.17

Debugger .............................................................................................. 15

3.2.18

245 FIFO .............................................................................................. 16

3.2.19

PWM .................................................................................................... 16

3.2.20

Digital IO pins........................................................................................ 16

3.2.21

Analogue IO pins .................................................................................... 16