DATA COMMUNICATIONS APPLICATION NOTE

DAN130

7

1.3.3.1

Summary of Differences Between the XR16L2751 and TL16C752B

Some differences between the XR16L2751 and TL16C752B are summarized in the table below.

XR16L2751

TL16C752B

Data Bus Standard

Intel and Motorola

Intel

Device ID and Revision

Device ID and Revision

N/A

Power Supply Operation

2.5, 3.3 and 5 V

3.3 V only

3.3 V Operation with 5 V Tolerance

3.3 V Operation with 5 V Tolerance

N/A

Max Operating Current

2.7 mA @ 2.5 V

2.7 mA @ 3.3 V

4 mA @ 5 V

20 mA @ 3.3 V

Max Frequency on XTAL1

24 MHz @ 2.5 V

33 MHz @ 3.3 V

50 MHz @ 5 V

48 MHz @ 3.3 V

Data Sampling Rates

16X or 8X

16X

BRG Prescaler

1 or 4

1 or 4

Max Data Rate

3 Mbps @ 2.5 V at 8X

4 Mbps @ 3.3 V at 8X

6.25 Mbps @ 5 V at 8X

3 Mbps @ 3.3 V

Package

48-TQFP, 44-PLCC

48-LQFP

Operating Temperature Ranges

Commercial and Industrial

Commercial and Industrial

48-QFP package thickness

1.2 mm

1.6 mm

TX/RX FIFO Size

64

64

TX/RX Trigger Tables

4 Trigger Tables

2 Trigger Tables

TX/RX FIFO Interrupt Trigger Levels

Programmable (Table D)

4 Selectable (Tables A-C)

16 Selectable (TLR)

4 Selectable (TLR = 0)

TX/RX FIFO Counters

TX/RX FIFO Counters

N/A

Single FIFO Ready Status Register

N/A

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

16 Selectable Levels

±N from the trigger level

16 Selectable Levels

Select Upper and Lower Hysteresis

Levels irrespective of trigger level

Infrared Mode

IrDA encoder/decoder (ver 1.0)

N/A

Sleep Mode

Sleep Mode with Auto Wake-up

Sleep Mode with Auto Wake-up

Powersave Mode

Powersave Mode

N/A

Diagnostic Modes

Local loopback

Local Loopback

RS485 Mode

Auto RS485 Mode

N/A

LSR bits 4-2 Interrupt Generation

Immediate or Delayed

Delayed