TL16C554A Status: ACTIVE

Quad UART with 16-Byte FIFOs

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Datasheet

Asynchonous Communications Element (Rev. C) (PDF 763 KB)
02 Mar 2006

	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

TL16C554: Quad UART with 16-Byte FIFOs
TL16C754C: Quad UART with 64-Byte FIFO
TL16C2550: 1.8-V to 5-V Dual UART with 16-Byte FIFOs
MAX3232: 3-V to 5.5-V Multichannel RS-232 Line Driver/Receiver
SN74LVC16373A: 16-Bit Transparent D-Type Latch With 3-State Outputs
TPS54620: 4.5V to 17V Input, 6A Synchronous Step Down SWIFT™ Converter

Product Information

Features

Integrated Asynchronous-Communications Element
Consists of Four Improved TL16C550C ACEs Plus Steering Logic
In FIFO Mode, Each ACE Transmitter and Receiver Is Buffered With 16-Byte FIFO to Reduce the Number of Interrupts to CPU
In TL16C450 Mode, Hold and Shift Registers Eliminate Need for Precise Synchronization Between the CPU and Serial Data
Up to 16-MHz Clock Rate for up to 1-Mbaud Operation with V_CC = 3.3 V and 5 V
Programmable Baud-Rate Generators Which Allow Division of Any Input Reference Clock by 1 to (2¹⁶–1) and Generate an Internal 16 × Clock
Adds or Deletes Standard Asynchronous Communication Bits (Start, Stop, and Parity) to or From the Serial-Data Stream
Independently Controlled Transmit, Receive, Line Status, and Data Set Interrupts
5-V and 3.3-V Operation
Fully Programmable Serial Interface Characteristics:
- 5-, 6-, 7-, or 8-Bit Characters
- Even-, Odd-, or No-Parity Bit
- 1-, 1 1/2-, or 2-Stop Bit Generation
- Baud Generation (DC to 1-Mbit Per Second)
False Start Bit Detection
Complete Status Reporting Capabilities
Line Break Generation and Detection
Internal Diagnostic Capabilities:
- Loopback Controls for Communications Link Fault Isolation
- Break, Parity, Overrun, Framing Error Simulation
Fully Prioritized Interrupt System Controls
Modem Control Functions (CTS\, RTS\, DSR\, DTR\, RI\, and DCD\)
3-State Outputs Provide TTL Drive Capabilities for Bidirectional Data Bus and Control Bus
Programmable Auto-RTS\ and Auto-CTS\
CTS\ Controls Transmitter in Auto-CTS\ Mode,
RCV FIFO Contents and Threshold Control RTS\ in Auto-RTS\ Mode,

Description

The TL16C554A is an enhanced quadruple version of the TL16C550C asynchronous-communications element (ACE). Each channel performs serial-to-parallel conversion on data characters received from peripheral devices or modems and parallel-to-serial conversion on data characters transmitted by the CPU. The complete status of each channel of the quadruple ACE can be read by the CPU at any time during operation. The information obtained includes the type and condition of the operation performed and any error conditions encountered.

The TL16C554A quadruple ACE can be placed in an alternate FIFO mode, which activates the internal FIFOs to allow 16 bytes (plus three bits of error data per byte in the receiver FIFO) to be stored in both receive and transmit modes. In the FIFO mode of operation, there is a selectable autoflow control feature that can significantly reduce software overhead and increase system efficiency by automatically controlling serial-data flow using RTS\ output and CTS\ input signals. All logic is on the chip to minimize system overhead and maximize system efficiency. Two terminal functions allow signaling of direct-memory access (DMA) transfers. Each ACE includes a programmable baud-rate generator that can divide the timing reference clock input by a divisor between 1 and 2¹⁶-1.

The TL16C554A is available in a 68-pin plastic-leaded chip-carrier (PLCC) FN package and in an 80-pin (TQFP) PN package.

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
TL16C554AFN	ACTIVE	0 to 70	5.25 \| 1ku	PLCC (FN) \| 68		18 \| TUBE
TL16C554AFNG4	ACTIVE	0 to 70	5.25 \| 1ku	PLCC (FN) \| 68		18 \| TUBE
TL16C554AFNR	ACTIVE	0 to 70	4.80 \| 1ku	PLCC (FN) \| 68		250 \| SMALL T&R	Purchase Samples
TL16C554AFNRG4	ACTIVE	0 to 70	4.80 \| 1ku	PLCC (FN) \| 68		250 \| SMALL T&R			Purchase Samples
TL16C554AIPN	ACTIVE	-40 to 85	5.15 \| 1ku	LQFP (PN) \| 80	View	119 \| JEDEC TRAY (10+1)
TL16C554AIPNG4	ACTIVE	-40 to 85	5.15 \| 1ku	LQFP (PN) \| 80	View	119 \| JEDEC TRAY (10+1)
TL16C554AIPNR	ACTIVE	-40 to 85	4.70 \| 1ku	LQFP (PN) \| 80	View	1000 \| LARGE T&R	Purchase Samples
TL16C554AIPNRG4	ACTIVE	-40 to 85	4.70 \| 1ku	LQFP (PN) \| 80	View	1000 \| LARGE T&R	Purchase Samples
TL16C554APN	ACTIVE	0 to 70	4.95 \| 1ku	LQFP (PN) \| 80	View	119 \| JEDEC TRAY (10+1)
TL16C554APNG4	ACTIVE	0 to 70	4.95 \| 1ku	LQFP (PN) \| 80	View	119 \| JEDEC TRAY (10+1)
TL16C554APNR	ACTIVE	0 to 70	4.50 \| 1ku	LQFP (PN) \| 80	View	1000 \| LARGE T&R	Purchase Samples
TL16C554APNRG4	ACTIVE	0 to 70	4.50 \| 1ku	LQFP (PN) \| 80	View	1000 \| LARGE T&R	Purchase Samples

* 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 10:36 AM GMT, 08 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 14 WeeksTL16C554AFN
Americas	Arrow	>1k
Americas	Rochester Electronics	>1k
Asia	WPI	56
Europe	EBV Elektronik	72
Worldwide	Mouser Electronics	3
TI Lead Time*: 14 WeeksTL16C554AFNG4
Americas	Rochester Electronics	465
Europe	Abacus Polar	89
Europe	EBV Elektronik	90
Worldwide	Mouser Electronics	14
TI Lead Time*: 14 WeeksTL16C554AFNR
Americas	Avnet	>1k
Americas	Rochester Electronics	250
Europe	Avnet-SILICA	>1k
Europe	EBV Elektronik	1k
TI Lead Time*: 14 WeeksTL16C554AFNRG4
None Reported View Distributors
TI Lead Time*: 20 WeeksTL16C554AIPN
Americas	Arrow	93
	Avnet	>1k
	Newark	173
Asia	Farnell Asia	411
Europe	Avnet-SILICA	2
Worldwide	Mouser Electronics	14
TI Lead Time*: 20 WeeksTL16C554AIPNG4
None Reported View Distributors
TI Lead Time*: 20 WeeksTL16C554AIPNR
Americas	Avnet	>1k
Asia	WPI	848
TI Lead Time*: 20 WeeksTL16C554AIPNRG4
None Reported View Distributors
TI Lead Time*: 20 WeeksTL16C554APN
Americas	Newark	4
Americas	Rochester Electronics	238
Asia	Farnell Asia	4
Asia	WPI	266
Europe	Avnet-SILICA	175
TI Lead Time*: 20 WeeksTL16C554APNG4
Americas	Rochester Electronics	>1k
TI Lead Time*: 20 WeeksTL16C554APNR
None Reported View Distributors
TI Lead Time*: 20 WeeksTL16C554APNRG4
None Reported View Distributors
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
TL16C554AFN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C554AFNG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C554AFNR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C554AFNRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C554AIPN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C554AIPNG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C554AIPNR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C554AIPNRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C554APN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C554APNG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C554APNR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C554APNRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	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 TL16C554A

Datasheet

Asynchonous Communications Element (Rev. C) (PDF, 763 KB)
02 Mar 2006

More Literature

UART Quick Reference Card (Rev. D) (PDF, 165 KB) 7411 views
09 Apr 2008

View More Literature for UARTs

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TL16C554A Status: ACTIVE

Quad UART with 16-Byte FIFOs

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Datasheet

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