UART Description

7/28/2019 UART Description

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Back to UART Devices

UART Overview
http://localhost/var/www/apps/conversion/tmp/Local%20Settings/Temporary%20Internet%20Files/OLK125/Connectivity.ppt%20http://localhost/var/www/apps/conversion/tmp/Local%20Settings/Temporary%20Internet%20Files/OLK125/Connectivity.ppt%20http://localhost/var/www/apps/conversion/tmp/Local%20Settings/Temporary%20Internet%20Files/OLK125/Connectivity.ppt%20


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TL16C550DSingle Channel 16-byte FIFOs UART

Up to 1.5Mbps(5V), 1.25Mbps(3.3V) and1Mbps(2.5V) operation

TI Patented Programmable auto-RTSand auto-CTS

5mm x 5mm 32-pin QFN package and48-pin QFP

Programmable baud rate generator Independent clock for the receiver

P4P and functionally compatible toIndustry Standard 16C550 function

16 byte FIFOs reduce CPU overhead

Compatibility with high speedprocessors

Portable, battery powered designs

PDAs, MP3 players, Cellular Data Port

Gaming Systems Point-of-Sale Terminal

1 ku SRP = $1. 75

More Information


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TL16C752BDual Channel 64-byte FIFOs UART


Xon/Xoff software flow control

Up to 3 Mbps baud rate at 3.3V

Programmable and selectable transmit

and receive FIFO trigger levels

64 byte FIFOs significantly reduceCPU overhead

Enhanced sleep mode


Telecommunication routers

Handheld terminals

Mobile Computing

Factory Automation

1 ku SRP = $3.10

More Information


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TL16C752CDual Channel 64-byte FIFOs UART



1.8V, 2.5V, 3.3V, and 5V operation




Enhanced sleep mode



Handheld terminals

Mobile Computing

Factory Automation

1 ku SRP = $3.10

More Information


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TL16C754BQuad Channel 64-byte FIFOs UART

Up to 3Mbps(5V) and 2Mbps(3.3V)operation





Pin compatible with SC16C754 andST16C654(D)



Enhanced sleep mode


Point-of-Sale terminals

Factory Automation

Data Concentrators

1 ku SRP = $8.35

More Information


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TL16C754CQuad Channel 64-byte FIFOs UART

Up to 3Mbps(5V) and 2Mbps(3.3V)operation





Pin compatible with SC16C754 andST16C654(D)



Enhanced sleep mode



Factory Automation

Data Concentrators

1 ku SRP = $8.35

More Information


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TL16C2550Dual channel with 16-byte FIFOs UART

Up to 1.5Mbps(5V), 1.25Mbps(3.3V)and 1Mbps(2.5V) operation

Programmable auto-RTS and auto-CTS

Programmable baud rate generator

5mm x 5mm 32-pin QFN (RHB)

and 48-pin QFP

Pin compatible with SC16C2550 andST(XR)16C(L)2550


Board savings using 32-pin QFN pkg


Gaming terminals

Portable applications

Router control Cellular data

1 ku SRP = $3.15

More Information


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TL16C2552Dual channel with 16-byte FIFOs UART

Up to 1.5Mbps(5V), 1.25Mbps(3.3V)and 1Mbps(2.5V) operation

Programmable auto-RTS and auto-CTS

Programmable baud rate generator

5mm x 5mm 32-pin QFN (RHB)

and 44-pin PLCC

Pin compatible with SC16C2552 andST(XR)16C(L)2552


Board savings using 32-pin QFN pkg


Gaming terminals

Portable applications

Router control Cellular data

1 ku SRP = $3.15

More Information


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UART System Block Diagram

UARTs are useful in applications where a lower cost of connection

is desired. A UART takes a parallel data stream and funnels it down to a serial

data stream at the transceiver end and then returns the data streamto a parallel signal at the receiver end.

This lowers the cost of connection by Decreasing the number of transceivers that are necessary.

Enabling the connecting cable to be less costly and less bulky.

UARTs are useful in applications that require a bandwidth of 3 Mbpsif a LVDS transceiver/receiver is used and a bandwidth of up to 500kbps if a RS232 transceiver/receiver is used.

More Information

RS-232RS-485LVDS

Serial Signal8 bit parallel

signal

RS-232(SN75LV4737A)UART

(TL16C550C)

UART(TL16C550D)

RS-232RS-485LVDS

UART

(TL16C550C)

UART(TL16C550D)

8 bit parallel

signal


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What is a UART?

Key Functions of a UART

Serial to Parallel Conversion Buffering Data Communication Baud Rate

Generation Communication Handshaking Start/Stop Bits Parity Generation

End Equipments Modem PC Com Port -- Serial Port Telecom Factory Automation and Process

Control

Point of Sales Systems Gaming Terminals Network Management Other - parallel-to-serial and serial-to-

parallel data conversion/transmission

More Information


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UART Selection Guide

Device Channel(s) FIFOs Voltage(V)

Characterized

Temp (0C) Package(s) Description Price

TL16C2550 2 16-Byte 2.5/3.3/5 0 to 70 32QFN/44PLCC Dual UART w ith programmable Auto-RTS and Auto-CTS Call

-40 to 85 48TQFP available 2Q05TL16C2552 2 16-Byte 2.5/3.3/5 0 to 70 32QFN/44PLCC Dual UART w ith programmable Auto-RTS and Auto-CTS Call

-40 to 85 available 2Q05

TL16C450 1 None 5 0 to 70 40DIP/44PLCC Single UART 1.50

TL16C451 1 None 5 0 to 70 68PLCC Single UART w ith Parallel Port 2.50

TL16C452 2 None 5 0 to 70 68PLCC Dual UART w ith Parallel Port 2.55

TL16C550C 1 16-Byte 3.3/5 0 to 70 40DIP/44PLCC Single UART w ith Hardw are Auto Flow Control 1.75

-40 to 85 48LQFP/48TQFP

TL16C550D 1 16-Byte 2.5/3.3/5 0 to 70 32QFN Single UART w ith Hardw are Auto Flow Control 1.75

-40 to 85 48LQFP/48TQFP

TL16C552 2 16-Byte 5 0 to 70 68PLCC Dual UART w ith Parallel Port, recommend TL16C552A 3.90

TL16C552A 2 16-Byte 5 0 to 70 68PLCC/80TQFP Dual UART w ith Parallel Port 3.85

-40 to 85

TL16C554 4 16-Byte 5 0 to 70 68PLCC/80LQFP Quad UART, recommend TL16C554A 6.05

-40 to 85

TL16C554A 4 16-Byte 5 0 to 70 68PLCC/80LQFP Quad UART w ith Hardw are Auto Flow Control 6.00

-40 to 85

TL16C750 1 16/64 Byte 5 0 to 70 44PLCC/64LQFP Single UART w ith Hardw are Auto Flow Control 3.70

-40 to 85 Low er Pow er Modes

TL16C752B 2 64-Byte 3.3 0 to 70 48LQFP/48TQFP Dual UART w ith Hardw are Auto Flow Control 3.10


TL16C752C 2 64-Byte 1.8/2.5/3.3/5 0 to 70 32QFN/48TQFP Dual UART w ith Hardw are Auto Flow Control Call-40 to 85 Low er Pow er Modes, RS485 and IrDA interface, avail 3Q05

TL16C754B 4 64-Byte 3.3/5 0 to 70 68PLCC/80LQFP Dual UA RT w ith Hardw are A uto Flow Control 8.35


TL16C754C 4 64-Byte 1.8/2.5/3.3/5 0 to 70 80LQFP Dual UART w ith Hardw are Auto Flow Control Call

-40 to 85 Low er Pow er Modes, available 3Q05

TL16PC564B/BLV 1 16/64-Byte 3.3/5 0 to 70 100BGA/100LQFP Single UART w ith PCMCIA Interface 5.9/6.10

TL16PIR552 2 16-Byte 5 0 to 70 80QFP Duat UART w ith selectable IR & 1284 Modes 6.10

More Information
http://localhost/var/www/apps/conversion/tmp/Local%20Settings/Temporary%20Internet%20Files/OLK125/Connectivity.ppt%20http://localhost/var/www/apps/conversion/tmp/Local%20Settings/Temporary%20Internet%20Files/OLK125/Connectivity.ppt%20http://localhost/var/www/apps/conversion/tmp/Local%20Settings/Temporary%20Internet%20Files/OLK125/Connectivity.ppt%20http://localhost/var/www/apps/conversion/tmp/Local%20Settings/Temporary%20Internet%20Files/OLK125/Connectivity.ppt%20


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UART Roadmap

TL16C450

TL16C452#ofChannels

1

2

4

FIFO Memory SizeNo FIFO

8

TL16C554B

TL16C758

TL16C750A

TL16C550C

TL16C552ATL16C752B

TL16C750

TL16C554A TL16C754B

16 Byte 64 Byte

TL16C550Dw/TQFP & QFN

TL16C2550

TL16C2552

TL16C754C

TL16C752C

TL28C92

TL28C94

8 Byte

TL28L91

TL28L92

TL28L194

TL28L198RTPd

Phase 12005

Phase 32007

Legend

Phase 22006

More Information


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Competitive Cross Reference#ch FIFO Exar National Philips Temp Package TI

ST16C450CP40 C 40DIP TL16C450N

0 ST16C450CJ44 C 44PLCC TL16C450FN

ST16C550CP40 P16550DN SC16C550IN40 C 40DIP TL16C550CN

ST16C550CJ44 P16550DV SC16C550IA44 C 44PLCC TL16C550CFNST16C550IJ44 SC16C550IA44 I 44PLCC TL16C550CIFN

16 ST16C550CQ48 SC16C550IB48 C 48LQFP TL16C550DPT

ST16C550IQ48 SC16C550IB48 I 48LQFP TL16C550DIPT

1 ST16C550CQ48 SC16C550IB48 C 48TQFP TL16C550DPFB

ST16C550IQ48 SC16C550IB48 I 48TQFP TL16C550DIPFB

XR16L580IL I 32QFN TL16C550DIRHB

SC16C750IA44 C 44PLCC TL16C750FN

SC16C750IB64 C 64LQFP TL16C750PM

64 SC16C750IB64 I 64LQFP TL16C750IPM

0 ST16C452CJ68 C 68PLCC TL16C452FN

ST16C552CJ68 C 68PLCC TL16C552AFN

ST16C552ACJ68 C 68PLCC TL16C552AFN

ST16C552AIJ68 I 68PLCC TL16C552AIFN

XR16L2550IL C 32QFN TL16C2550RHB

XR16L2550IL I 32QFN TL16C2550IRHB

ST16C2550CJ44 SC16C2550IA 44 C 44PLCC TL16C2550FN

ST16C2550IJ44 SC16C2550IA 44 I 44PLCC TL16C2550IFN

2 16 XR16L2550IJ I 44PLCC TL16C2550IFN

ST16C2550CQ48 SC16C2550IB48 C 48TQFP TL16C2550PFB

ST16C2550CIQ48 SC16C2550IB48 I 48TQFP TL16C2550IPFB

XR16L2550IM 48TQFP TL16C2550IPFB

ST16C2552CJ SC16C2552IA 44 C 44PLCC TL16C2552FN

ST16C2552IJ SC16C2552IA44 I 44PLCC TL16C2552IFN

XR16L2552IJ 44PLCC TL16C2552IFN

0 ST16C454CJ68 SC16C554DIA68 C 68PLCC TL16C554AFN

ST16C454IJ68 SC16C554DIA 68 I 68PLCC TL16C554IFN

ST16C554DCJ68 SC16C554DIA 68 C 68PLCC TL16C554A FN

16 ST16C554DIJ68 SC16C554DIA68 I 68PLCC TL16C554IFN

4 SC16C554DIB80 C 80LQFP TL16C554APN

SC16C554DIB80 I 80LQFP TL16C554AIPN

ST16C654DCJ68 SC16C754IA68 C and I 68PLCC TL16C754BFN

64 SC16C754IB80 C and I 80LQFP TL16C754BPN

UART Description

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