TL16C550D Status: ACTIVE

Asynchronous Communications Element With Autoflow Control

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Datasheet

Asynchronous Communications Element with Autoflow Control (Rev. E) (PDF 1494 KB)
16 Dec 2008

	TL16C2550	TL16C2552	TL16C550D	TL16C554A
Number of Channels	2	2	1	4
FIFOs(bytes)	16	16	16	16
Operating Voltage(V)	1.8,2.5,3.3,5	1.8,2.5,3.3,5	2.5, 3.3, 5	5,3.3
Operating Temp Range(Celsius)	-40 to 85,0 to 70	-40 to 85,0 to 70	-40 to 85,0 to 70	-40 to 85,0 to 70
Pin/Package	32QFN, 48TQFP	44PLCC	24BGA MICROSTAR JUNIOR, 32QFN, 48LQFP, 48TQFP	68PLCC, 80LQFP
Rating	Catalog	Catalog	Catalog	Catalog
Tx / Rx FIFO INT Trig	No / 4 Levels	No / 4 Levels	No / 4 Levels	No / 4 Levels
Auto RTS/CTS	Yes	Yes	Yes	Yes
CPU Interface	X86	X86	X86	X86
Baud Rate (max) at Vcc = 1.8V and with 16X Sampling(Mbps)	0.625	0.625	N/A	N/A
Baud Rate (max) at Vcc = 2.5V and with 16X Sampling(Mbps)	1.0	1.0	1.0	N/A
Baud Rate (max) at Vcc = 3.3V and with 16X Sampling(Mbps)	1.25	1.25	1.25	1.0
Baud Rate (max) at Vcc = 5.0V and with 16X Sampling(Mbps)	1.5	1.5	1.5	1.0
	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

TL16C550C: Single UART with 16-Byte FIFOs and Auto Flow Control
TL16C2550: 1.8-V to 5-V Dual UART with 16-Byte FIFOs
SN74LVC245A: Octal Bus Transceiver With 3-State Outputs
MAX3232: 3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver
SN74LVC1G04: Single Inverter

Product Information

Features

Programmable Auto-RTS and Auto-CTS
In Auto-CTS Mode, CTS Controls Transmitter
In Auto-RTS Mode, RCV FIFO Contents
and Threshold Control RTS
Serial and Modem Control Outputs Drive a RJ11 Cable
Directly When Equipment Is on the Same Power Drop
Capable of Running With All Existing
TL16C450 Software
After Reset, All Registers Are Identical to the
TL16C450 Register Set
Up to 24-MHz Clock Rate for up to 1.5-Mbaud
Operation With V_CC = 5 V
Up to 20-MHz Clock Rate for up to 1.25-Mbaud
Operation With V_CC = 3.3 V
Up to 48-MHz Clock Rate for up to 3-Mbaud
Operation with V_CC = 3.3 V (ZQS Package Only,
Divisor = 1)
Up to 40-MHz Clock Rate for up to 2.5-Mbaud
Operation with V_CC = 3.3 V (ZQS Package Only,
Divisor ≥ 2)
Up to 16-MHz Clock Rate for up to 1-Mbaud
Operation With V_CC = 2.5 V
In the TL16C450 Mode, Hold and Shift Registers Eliminate the
Need for Precise Synchronization Between the CPU and Serial Data
Programmable Baud Rate Generator Allows Division of Any Input
Reference Clock by 1 to (2¹⁶ –1) and Generates an Internal 16× Clock
Standard Asynchronous Communication Bits (Start, Stop, and Parity)
Added to or Deleted From the Serial Data Stream
5-V, 3.3-V, and 2.5-V Operation
Independent Receiver Clock Input
Transmit, Receive, Line Status, and Data Set
Interrupts Independently Controlled
Fully Programmable Serial Interface Characteristics:
- 5-, 6-, 7-, or 8-Bit Characters
- Even-, Odd-, or No-Parity Bit Generation and Detection
- 1-, 1 =-, or 2-Stop Bit Generation
- Baud Generation (dc to 1 Mbit/s)
False-Start Bit Detection
Complete Status Reporting Capabilities
3-State Output TTL Drive Capabilities for Bidirectional
Data Bus and Control Bus
Line Break Generation and Detection
Internal Diagnostic Capabilities:
- Loopback Controls for Communications Link Fault Isolation
- Break, Parity, Overrun, and Framing Error Simulation
Fully Prioritized Interrupt System Controls
Modem Control Functions (CTS, RTS, DSR, DTR, RI, and DCD)
Available in 48-Pin PT, 48-Pin PFB, 32-Pin RHB,
and 24-Pin ZQS Packages

DESCRIPTION/ORDERING INFORMATION

The TL16C550D and the TL16C550DI are speed and operating voltage upgrades (but functional equivalents) of the TL16C550C asynchronous communications element (ACE), which in turn is a functional upgrade of the TL16C450. Functionally equivalent to the TL16C450 on power up (character or TL16C450 mode), the TL16C550D and the TL16C550DI, like the TL16C550C, can be placed in an alternate FIFO mode. This relieves the CPU of excessive software overhead by buffering received and transmitted characters. The receiver and transmitter FIFOs store up to 16 bytes including three additional bits of error status per byte for the receiver FIFO. In the FIFO mode, there is a selectable autoflow control feature that can significantly reduce software overload and increase system efficiency by automatically controlling serial data flow using RTS output and CTS input signals.

The TL16C550D and TL16C550DI perform serial-to-parallel conversions on data received from a peripheral device or modem and parallel-to-serial conversion on data received from its CPU. The CPU can read the ACE status at any time. The ACE includes complete modem control capability and a processor interrupt system that can be tailored to minimize software management of the communications link.

Both the TL16C550D and the TL16C550DI ACE include a programmable baud rate generator capable of dividing a reference clock by divisors from 1 to 65535 and producing a 16× reference clock for the internal transmitter logic. Provisions are included to use this 16× clock for the receiver logic. The ACE accommodates up to a 1.5-Mbaud serial rate (24-MHz input clock) so that a bit time is 667 ns and a typical character time is 6.7 ms (start bit, 8 data bits, stop bit).

Two of the TL16C450 terminal functions on the TL16C550D and the TL16C550DI have been changed to TXRDY and RXRDY, which provide signaling to a DMA controller.

The TL16C550D is being made available in a reduced pin count package, the 32-pin RHB package. This is accomplished by eliminating some signals that are not required for some applications. These include the CS0, CS1, ADS, RD2, WR2, and RCLK input signals and the DDIS, TXRDY, RXRDY, OUT1, OUT2, and BAUDOUT output signals. There is an internal connection between BAUDOUT and RCLK.

All of the functionality of the TL16C550D is maintained in the RHB package.

The TL16C550D is being made available in a reduced pin count package, the 24-pin ZQS package. This is accomplished by eliminating some signals that are not required for some applications. These include the CS0, CS1, ADS, RD2, WR2, DSR, RI, DCD, and RCLK input signals and the DDIS, TXRDY, RXRDY, OUT1, OUT2, DTR, and BAUDOUT output signals. There is an internal connection between BAUDOUT and RCLK.

Most of the functionality of the TL16C550D is maintained in the ZQS package, except that which involves the eliminated signals.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
TL16C550DIPFB	ACTIVE	-40 to 85	1.65 \| 1ku	TQFP (PFB) \| 48	View	250 \| JEDEC TRAY (10+1)
TL16C550DIPFBG4	ACTIVE	-40 to 85	1.65 \| 1ku	TQFP (PFB) \| 48	View	250 \| JEDEC TRAY (10+1)
TL16C550DIPFBR	ACTIVE	-40 to 85	1.50 \| 1ku	TQFP (PFB) \| 48	View	1000 \| LARGE T&R	Purchase Samples
TL16C550DIPFBRG4	ACTIVE	-40 to 85	1.50 \| 1ku	TQFP (PFB) \| 48	View	1000 \| LARGE T&R			Purchase Samples
TL16C550DIPT	ACTIVE	-40 to 85	1.65 \| 1ku	LQFP (PT) \| 48	View	250 \| JEDEC TRAY (10+1)
TL16C550DIPTG4	ACTIVE	-40 to 85	1.65 \| 1ku	LQFP (PT) \| 48	View	250 \| JEDEC TRAY (10+1)
TL16C550DIPTR	ACTIVE	-40 to 85	1.50 \| 1ku	LQFP (PT) \| 48	View	1000 \| LARGE T&R	Purchase Samples
TL16C550DIPTRG4	ACTIVE	-40 to 85	1.50 \| 1ku	LQFP (PT) \| 48	View	1000 \| LARGE T&R	Purchase Samples
TL16C550DIRHB	ACTIVE	-40 to 85	1.65 \| 1ku	QFN (RHB) \| 32	View	73 \| TUBE
TL16C550DIRHBG4	ACTIVE	-40 to 85	1.65 \| 1ku	QFN (RHB) \| 32	View	73 \| TUBE
TL16C550DIRHBR	ACTIVE	-40 to 85	1.50 \| 1ku	QFN (RHB) \| 32	View	3000 \| LARGE T&R		Purchase Samples
TL16C550DIRHBRG4	ACTIVE	-40 to 85	1.50 \| 1ku	QFN (RHB) \| 32	View	3000 \| LARGE T&R			Purchase Samples
TL16C550DIZQS	PREVIEW	-40 to 85		BGA MICROSTAR JUNIOR (ZQS) \| 24		250			Not Available
TL16C550DIZQSR	ACTIVE	-40 to 85	1.50 \| 1ku	BGA MICROSTAR JUNIOR (ZQS) \| 24		2500 \| LARGE T&R
TL16C550DPFB	ACTIVE	0 to 70	1.45 \| 1ku	TQFP (PFB) \| 48	View	250 \| JEDEC TRAY (10+1)
TL16C550DPFBG4	ACTIVE	0 to 70	1.45 \| 1ku	TQFP (PFB) \| 48	View	250 \| JEDEC TRAY (10+1)
TL16C550DPFBR	ACTIVE	0 to 70	1.30 \| 1ku	TQFP (PFB) \| 48	View	1000 \| LARGE T&R	Purchase Samples
TL16C550DPFBRG4	ACTIVE	0 to 70	1.30 \| 1ku	TQFP (PFB) \| 48	View	1000 \| LARGE T&R			Purchase Samples
TL16C550DPT	ACTIVE	0 to 70	1.45 \| 1ku	LQFP (PT) \| 48	View	250 \| JEDEC TRAY (10+1)
TL16C550DPTG4	ACTIVE	0 to 70	1.45 \| 1ku	LQFP (PT) \| 48	View	250 \| JEDEC TRAY (10+1)
TL16C550DPTR	ACTIVE	0 to 70	1.30 \| 1ku	LQFP (PT) \| 48	View	1000 \| LARGE T&R	Purchase Samples
TL16C550DPTRG4	ACTIVE	0 to 70	1.30 \| 1ku	LQFP (PT) \| 48	View	1000 \| LARGE T&R	Purchase Samples
TL16C550DRHB	ACTIVE	0 to 70	1.45 \| 1ku	QFN (RHB) \| 32	View	73 \| TUBE
TL16C550DRHBG4	ACTIVE	0 to 70	1.45 \| 1ku	QFN (RHB) \| 32	View	73 \| TUBE
TL16C550DRHBR	ACTIVE	0 to 70	1.30 \| 1ku	QFN (RHB) \| 32	View	3000 \| LARGE T&R		Purchase Samples
TL16C550DRHBRG4	ACTIVE	0 to 70	1.30 \| 1ku	QFN (RHB) \| 32	View	3000 \| LARGE T&R			Purchase Samples
TL16C550DZQSR	ACTIVE	0 to 70	1.30 \| 1ku	BGA MICROSTAR JUNIOR (ZQS) \| 24		2500 \| LARGE T&R

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 10:30 AM GMT, 06 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksTL16C550DIPFB
Americas	Arrow	155
Americas	Rochester Electronics	>1k
Asia	WPI	170
Worldwide	DigiKey	234
Worldwide	Mouser Electronics	171
TI Lead Time*: 20 WeeksTL16C550DIPFBG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTL16C550DIPFBR
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTL16C550DIPFBRG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTL16C550DIPT
Americas	Rochester Electronics	250
Asia	WPI	169
Worldwide	DigiKey	151
Worldwide	Mouser Electronics	146
TI Lead Time*: 20 WeeksTL16C550DIPTG4
Europe	EBV Elektronik	250
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTL16C550DIPTR
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTL16C550DIPTRG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTL16C550DIRHB
Americas	Rochester Electronics	>1k
Europe	Avnet-SILICA	146
Worldwide	Mouser Electronics	195
TI Lead Time*: 20 WeeksTL16C550DIRHBG4
None Reported View Distributors
TI Lead Time*: 8 WeeksTL16C550DIRHBR
None Reported View Distributors
TI Lead Time*: 8 WeeksTL16C550DIRHBRG4
None Reported View Distributors
TI Lead Time*: 20 WeeksTL16C550DIZQSR
Asia	WPI	>1k
Worldwide	DigiKey	>1k
TI Lead Time*: 20 WeeksTL16C550DPFB
Americas	Avnet	42
Americas	Newark	220
Asia	Farnell Asia	238
Europe	Arrow Northern Europe	250
Worldwide	Mouser Electronics	10
TI Lead Time*: 20 WeeksTL16C550DPFBG4
None Reported View Distributors
TI Lead Time*: 20 WeeksTL16C550DPFBR
None Reported View Distributors
TI Lead Time*: 20 WeeksTL16C550DPFBRG4
None Reported View Distributors
TI Lead Time*: 4 WeeksTL16C550DPT
Americas	Arrow	>1k
	Avnet	541
	Rochester Electronics	>1k
Asia	WPI	190
Europe	Avnet-SILICA	16
	Compel	207
	EBV Elektronik	13
Worldwide	DigiKey	161
TI Lead Time*: 4 WeeksTL16C550DPTG4
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTL16C550DPTR
Americas	Rochester Electronics	>1k
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTL16C550DPTRG4
Worldwide	DigiKey	Available
TI Lead Time*: 4 WeeksTL16C550DRHB
Americas	Arrow	68
Americas	Rochester Electronics	>1k
Asia	WPI	66
Europe	EBV Elektronik	11
Worldwide	DigiKey	268
Worldwide	Mouser Electronics	94
TI Lead Time*: 4 WeeksTL16C550DRHBG4
Europe	EBV Elektronik	511
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTL16C550DRHBR
Worldwide	DigiKey	Available
TI Lead Time*: 20 WeeksTL16C550DRHBRG4
Worldwide	DigiKey	Available
TI Lead Time*: 4 WeeksTL16C550DZQSR
Asia	WPI	>1k
Worldwide	DigiKey	>1k
View all Distributors

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
TL16C550DIPFB	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TL16C550DIPFBG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TL16C550DIPFBR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TL16C550DIPFBRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TL16C550DIPT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C550DIPTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C550DIPTR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C550DIPTRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C550DIRHB	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TL16C550DIRHBG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TL16C550DIRHBR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TL16C550DIRHBRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TL16C550DIZQS					View
TL16C550DIZQSR	Green (RoHS & no Sb/Br)	SNAGCU	Level-1-260C-UNLIM	View	View
TL16C550DPFB	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TL16C550DPFBG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TL16C550DPFBR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TL16C550DPFBRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TL16C550DPT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C550DPTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C550DPTR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C550DPTRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C550DRHB	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TL16C550DRHBG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TL16C550DRHBR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TL16C550DRHBRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TL16C550DZQSR	Green (RoHS & no Sb/Br)	SNAGCU	Level-1-260C-UNLIM	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for TL16C550D

Datasheet

Asynchronous Communications Element with Autoflow Control (Rev. E) (PDF, 1494 KB)
16 Dec 2008

More Literature

UART Quick Reference Card (Rev. D) (PDF, 165 KB) 7401 views
09 Apr 2008

View More Literature for UARTs

Simulation Models

IBIS Model
- TL16C550D 2.5V PFB-PKG IBIS Model (Multiple File Format) 175 views
  18 Mar 2005 Read Abstract
- TL16C550D 3.3V PFB-PKG IBIS Model (Multiple File Format) 205 views
  18 Mar 2005 Read Abstract
- TL16C550D 5.0V PFB PKG IBIS Model (Multiple File Format) 188 views
  18 Mar 2005 Read Abstract
- TL16C550D 5.0V RHB PKG IBIS Model (ZIP, 49 KB) 17 views
  07 Jan 2009
- TL16C550D 3.3V RHB PKG IBIS Model (ZIP, 48 KB) 17 views
  07 Jan 2009
- TL16C550D 2.5V RHB PKG IBIS Model (ZIP, 48 KB) 16 views
  07 Jan 2009
- TL16C550D 5.0V ZQS PKG IBIS Model (ZIP, 52 KB) 12 views
  17 Dec 2008
- TL16C550D 3.3V ZQS PKG IBIS Model (ZIP, 51 KB) 15 views
  17 Dec 2008
- TL16C550D 2.5V ZQS PKG IBIS Model (ZIP, 51 KB) 13 views
  17 Dec 2008

Part #	Name	Product Family	Comments
TRS3253E	RS-232 Transceiver With Split Supply Pin For Logic Side	INTERFACE - RS-232	RS-232 Xcvr with low volt support
TRS3221E	3-V to 5.5-V Single-Channel RS-232 Line Driver/Receiver With +/-15-kV IEC ESD Protection	INTERFACE - RS-232	Single Tx/Rx RS-232 Xcvr
TRSF3221E	3-V to 5.5-V Single-Channel RS-232 1-Mbit/s Line Driver/Receiver With +/-15-kV IEC ESD Protection	INTERFACE - RS-232	Single Tx/Rx RS-232 Xcvr with 1Mbps support
TRS3243E	3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver With +/-15-kV IEC ESD Protection	INTERFACE - RS-232	3 Tx / 5 Rx RS-232 Xcvr
TRSF3243	3-V to 5.5-V Multichannel RS-232 Compatible Line Driver/Receiver	INTERFACE - RS-232	3 Tx / 5 Rx RS-232 Xcvr w/ 1 Mbps support
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All End-Equipment

TL16C550D Status: ACTIVE

Asynchronous Communications Element With Autoflow Control

Most Popular Links

Datasheet

Customers Who Evaluated This Product Also Evaluated