The High-Performance
UART Product Family
As an industry-leading supplier of universal
asynchronous receiver/transmitters (UARTs),
Texas Instruments provides products designed
to improve system performance and meet theneeds of next-generation applications. TI’s
portfolio features highly integrated parallel-toserial and serial-to-parallel UARTs that areable to perform under even the toughest conditions. These conditions include meeting theincreased demands placed on a system while
reducing its space and power requirements.
Space-saving configurations allow improved

BInte usrfacesystem performance while conserving valuableboard space. By supporting operating voltages
down to 1.8 V, TI’s UART product family iscapable of taking care of even the most powerdemanding applications.
TI’s high-performance UARTs are ideal formany applications including telecommunications, gaming, point-of-sale (POS) terminals,
mobile computing, industrial automation, basestations and mobile telephones. As one of theworld’s leading high-volume semiconductor

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64- erbyteTran
Bloc smittek Lo rgic• Single-, dual- and quad-channel 		devices available• Hardware and software auto-flow 		control• Programmable sleep mode andlow-power mode
• Industrial temperature 			characterization available• Choice of 5-V, 3.3-V, 2.5-V or

1.8-V supply

manufacturers, TI delivers the resources andindustry expertise required to meet your needs.
These resources include dedicated marketingand technical support teams around the globe.
TI’s vast UART portfolio provides cost-effectivesolutions for numerous customer applications.
They include 16- and 64-byte FIFOs along withsingle-, dual- and quad-channel devices.

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The TL16C754B—TI’s high-performance, four-channel UART device.

TI’s latest members of TI’s
UART family
RXTX

TI is proud to have three parts join its UART
portfolio: the TL16C2550, TL16C2552 andTL16C2752. These devices deliver many features requiring less power. These features willbe essential in systems being designed today
to meet the demands of tomorrow.

Auto-Flow Control (Auto RTSZ and Auto CTSZ) Example
Serial toParallel

SIN

SOUTParallelto Serial
XMT

RCV
FIFO

Serial to RTSZ
Parallel

CTSZ

SOUT

SIN

FlowControl

FIFO
D7-D0

D7-D0
Serial toParallel

Serial toParallel
RCVXMT
FIFO

Serial toParallel

CTSZ

RTSZ

FlowControl

FIFO

TI UARTs feature auto-flow control, which significantly reduces overhead and increases system efficiency.

TL16C2550 and TL16C2552
The TL16C2550 and TL16C2552 offer thebenefit of combining two TL16C550D UARTs
into a single low-pin-count package. Sharing
only the data interface and clock, each UART
in the TL16C2550 and TL16C2552 operates
independently with its own self-contained
FIFOs and register set. Performing serial-toparallel or parallel-to-serial conversions, thesedual-channel UARTs are ideal for industrial
control, POS terminals, gaming systems andjust about any portable application.
The flexibility of the TL16C2550 andTL16C2552 enables them to be used innumerous devices ranging from the latest
1.8-V power-sensitive applications to more
traditional 5-V systems. Being industrial-rated,each UART chip is backed by TI’s strictest
quality control and manufacturing expertise.

TL16C2752
The latest addition to the TI UART portfolio, thefeature-rich TL16C2752 two-port UART, willoffer designers greater flexibility in their designsystems than before. With a built-in IrDA
1.0 encoder/decoder and external RS-485
transceiver support, the TL16C2752 provides
flexibility for many application needs. Designedwith 64-byte FIFOs and customizable trigger
levels, the TL16C2752 can maximize a CPU’s
performance by reducing its need to service
network functions. It also provides bothhardware and software flow control throughmultiple threshold settings. Possible applications for the TL16C2752 include telecom
D7-D0 routers, handheld terminals, mobile
computing and factory automation systems.

PCMCIA and other family members
TI’s family of UARTs includes devices for
portable computer Personal Computer Memory
Card International Association (PCMCIA) boards(the TL16PC564B) and Industry Standard
Architecture (ISA) bus-based PCs as well as
UARTs that support Infrared Data Association(IrDA) signaling (the TL16PIR552). TI also offers
a stand-alone IrDA encoder and decoder(the TIR1000).

For more information
TI UARTs are helping today’s designers develop
better solutions for tomorrow’s systems. If you
would like more information on how UARTs
can work in your system today, please contact
one of our Product Information Centers(see back page). Or, for more details see
www.ti.com/uart.

UART Selection Guide				Device Name		Description
FIFOs

Package
Options

OperatingVoltage (V)CharacterizedTemperature

TL16C2550				

Dual UART with Programmable
16-ByteAuto-RTS and Auto-CTS		

32 QFN, 44 PLCC
48 TQFP

1.8/2.5/3.3/5-40˚C to 85˚C

TL16C2552				

Dual UART with Programmable
16-ByteAuto-RTS and Auto-CTS		

32 QFN, 44 PLCC

1.8/2.5/3.3/5-40˚C to 85˚C

TL16C2752				

Dual UART with Customizable
Trigger Levels

64-Byte44 PLCC

1.8/2.5/3.3/5-40˚C to 85˚C

TL16C754C

Quad UART with 64-Byte FIFO

64-Byte64 LQFP

1.8/2.5/3.3/5-40˚C to 85˚C

TL16C450

Single UARTNone

40 DIP, 44 PLCC

50˚C to 70˚C

TL16C451

Single UART with Parallel Port

None

68 PLCC

50˚C to 70˚C

L16C452

Dual UART with Parallel Port

None

68 PLCC

50˚C to 70˚C

TL16C550C				Single UART with Hardware
16-ByteAutoflow Control		

40 DIP, 44 PLCC
48 LQFP, 48 TQFP

3.3/5

-40˚C to 85˚C

TL16C550D				

Single UART with Hardware
16-ByteAutoflow Control		32 QFN48 LQFP, 48 TQFP

2.5/3.3/5-40˚C to 85˚C

Dual UART with Parallel Port

68 PLCC, 80 TQFP

5-40˚C to 85˚C

TL16C554A				

Quad UART with Hardware
16-Byte68 PLCC, 80 TQFP
5Autoflow Control				-40˚C to 85˚C

TL16C750				Single UART with Hardware
16/64-Byte
44 PLCC, 64 LQFP
5Autoflow Control, Low-Power Modes				-40˚C to 85˚C

TL16C752B				

Dual UART w/ auto-flow control
and low-power modes

64-Byte48 LQFP, 48 TQFP

3.3

-40˚C to 85˚C

TL16C754B				

Dual UART with Hardware
Autoflow Control, Low-Power Modes

64-Byte68 PLCC, 80 LQFP

3.3/5

-40˚C to 85˚C

Single UART with PCMCIA interface

16/64-Byte

100 BGA, 100 LQFP

3.3/5

0˚C to 70˚C

Dual UART with Selectable IRand 1284 modes

16-Byte80-pin QFP

50˚C to 70˚C

L16C552A

TL16PC564B/BLV
TL16PIR552		

16-BytelrDA Selection Guide				Device Name		Description		

Data Rate		Max (Kbps)
lrDA Standard

TIR1000

Standalone IrDA Encoder and Decoder		

115

1.0		

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