DATA COMMUNICATIONS APPLICATION NOTE

DAN132

4

1.3.3.1

Summary of Differences Between the ST16C580 and TL16C550C

The differences between the ST16C580 and TL16C550C is summarized in the table below.

ST16C580

TL16C550C

Data Bus Standard

Intel

Intel

Power Supply Operation

3.3 and 5 V

3.3 and 5 V

Max Operating Current

1.3 mA @ 3.3 V

3 mA @ 5 V

8 mA @ 3.3 V

10 mA @ 5 V

Max Frequency on XTAL1

8 MHz @ 3.3 V

24 MHz @ 5 V

14 MHz @ 3.3 V

16 MHz @ 5 V

Data Sampling Rates

16X

16X

BRG Prescaler

1 or 4

1

Max Data Rate

500 Kbps @ 3.3 V

1.5 Mbps @ 5 V

875 Kbps @ 3.3 V

1 Mbps @ 5V

Package

44-PLCC, 48-TQFP, 40-PDIP

44-PLCC, 48-TQFP, 40-PDIP

Operating Temperature Ranges

Commercial and Industrial

Commercial and Industrial

TX/RX FIFO Size

16

16

TX/RX Trigger Tables

1 Trigger Table

1 Trigger Table

TX FIFO Interrupt Trigger Levels

4 Selectable

1

RX FIFO Interrupt Trigger Levels

4 Selectable

4 Selectable

Hardware Flow Control

Auto RTS/CTS Flow Control

Auto RTS/CTS Flow Control

Software Flow Control

Auto Xon/Xoff Flow Control

N/A

Infrared Mode

IrDA encoder/decoder (ver 1.0)

N/A

Sleep Mode

Sleep Mode with Auto Wake-up

N/A

Low Power Mode

N/A

N/A

Diagnostic Modes

Local loopback

Local Loopback

RS485 Mode

N/A

N/A