DATA COMMUNICATIONS APPLICATION NOTE

DAN138

4

1.3.1.1

Summary of Differences Between the XR16L2550 and TL16C752B

Some differences between the XR16L2550 and TL16C752B are summarized in the table below.

XR16L2550

TL16C752B

Data Bus Standard

Intel

Intel

Power Supply Operation

2.25, 3.3 and 5 V

3.3 V only

5 V Tolerant Inputs

5 V Tolerant Inputs

No

Max Operating Current

1 mA @ 2.5 V

1.3 mA @ 3.3 V

3 mA @ 5 V

20 mA @ 3.3 V

Max Frequency on XTAL1

16 MHz @ 2.5 V

30 MHz @ 3.3 V

50 MHz @ 5 V

48 MHz @ 3.3 V

Data Sampling Rates

16X

16X

BRG Prescaler

1 or 4

1 or 4

Max Data Rate

1 Mbps @ 2.5 V

1.875 Mbps @ 3.3 V

3.125 Mbps @ 5 V

3 Mbps @ 3.3 V

Package

48-TQFP, 44-PLCC, 32-QFN

48-LQFP

Operating Temperature Ranges

Industrial

Commercial and Industrial

48-pin package thickness

1.2 mm (TQFP)

1.6 mm (LQFP)

TX/RX FIFO Size

16

64

TX/RX Trigger Tables

1 Trigger Table

2 Trigger Tables

TX/RX FIFO Interrupt Trigger Levels

4 Selectable

16 Selectable (TLR)

4 Selectable (TLR = 0)

Single FIFO Ready Status Register

No

FIFO Ready Status Register

Hardware Flow Control

Auto RTS/CTS Flow Control

Auto RTS/CTS Flow Control

Software Flow Control

Auto Xon/Xoff Flow Control

Auto Xon/Xoff Flow Control

Auto Hysteresis Level

Next Upper and Lower trigger level

16 Selectable Levels

Select Upper and Lower Hysteresis

Levels irrespective of trigger level

Infrared Mode

IrDA encoder/decoder (ver 1.0)

No

Sleep Mode

Sleep Mode with Auto Wake-up

Sleep Mode with Auto Wake-up

Diagnostic Modes

Local Loopback

Local Loopback