TL16C2552 Status: ACTIVE

1.8-V to 5-V Dual UART with 16-Byte FIFOs

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Datasheet

1.8-V to 5-V DUAL UART WITH 16-BYTE FIFOS (Rev. A) (PDF 451 KB) 2206 views
15 Jun 2006

	TL16C2550	TL16C2552	TL16C550D	TL16C554A
Number of Channels	2	2	1	4
FIFOs(bytes)	16	16	16	16
Operating Voltage(V)	1.8V,2.5V,3.3V,5V	1.8V,2.5V,3.3V,5V	2.5, 3.3, 5	5.0,3.3
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

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Product Information

Features

Programmable Auto-RTS andAuto-CTS
In Auto-CTS Mode, CTS Controls the 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 16-MHz Clock Rate for up to 1-Mbaud Operation With V_CC = 2.5 V
Up to 10-MHz Clock Rate for up to 625-kbaud Operation With V_CC = 1.8 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, 2.5-V, and 1.8 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 ½, 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 44-Pin PLCC (FN) or 32-Pin QFN (RHB) Packages
Each UART's Internal Register Set May Be Written Concurrently to Save Setup Time
Multi-Function Output (MF) Allows Users to Select Among Several Functions, Saving Package Pins
APPLICATIONS
- Point-of-Sale Terminals
- Gaming Terminals
- Portable Applications
- Router Control
- Cellular Data
- Factory Automation

Description

The TL16C2552 is a dual universal asynchronous receiver andtransmitter (UART). It incorporates the functionality of two TL16C550D UARTs, each UART having its own register set and FIFOs. The two UARTs share only the data bus interface and clock source, otherwise they operate independently. Another name for the UART function is Asynchronous Communications Element (ACE), and these terms will be used interchangeably. The bulk of this document describes the behavior of each ACE, with the understanding that two such devices are incorporated into the TL16C2552.

Each ACE is a speed and voltage range upgrade of the TL16C550C, which in turn is a functional upgrade of the TL16C450. Functionally equivalent to the TL16C450 on power up or reset (single character or TL16C450 mode), each ACE can be placed in an alternate FIFO mode. This relieves the CPU of excessive software overhead by buffering received and to be transmitted characters. Each receiver and transmitter store up to 16 bytes in their respective FIFOs, with the receive FIFO including three additional bits per byte for error status. In the FIFO mode, a selectable autoflow control feature can significantly reduce software overload and increase system efficiency by automatically controlling serial data flow using handshakes between the RTS output and CTS input, thus eliminating overruns in the receive FIFO.

Each ACE performs serial-to-parallel conversions on data received from a peripheral device or modem and stores the parallel data in its receive buffer or FIFO, and each ACE performs parallel-to-serial conversions on data sent from its CPU after storing the parallel data in its transmit buffer or FIFO. The CPU can read the status of either ACE at any time. Each ACE includes complete modem control capability and a processor interrupt system that can be tailored to the application.

Each ACE includes a programmable baud rate generator capable of dividing a reference clock with divisors of from 1 to 65535, thus producing a 16× internal reference clock for the transmitter and receiver logic. Each ACE accommodates up to a 1.5-Mbaud serial data rate (24-MHz input clock). As a reference point, that speed would generate a 667-ns bit time and a 6.7-µs character time (for 8,N,1 serial data), with the internal clock running at 24 MHz.

Each ACE has a TXRDY and RXRDY output that can be used to interface to a DMA controller.

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
TL16C2552FN	ACTIVE	0 to 70	3.30 \| 1ku	PLCC (FN) \| 44	View	26 \| TUBE
TL16C2552FNG4	ACTIVE	0 to 70	3.30 \| 1ku	PLCC (FN) \| 44	View	26 \| TUBE
TL16C2552FNR	ACTIVE	0 to 70	3.00 \| 1ku	PLCC (FN) \| 44	View	500 \| LARGE T&R	Purchase Samples
TL16C2552FNRG4	ACTIVE	0 to 70	3.00 \| 1ku	PLCC (FN) \| 44	View	500 \| LARGE T&R			Purchase Samples
TL16C2552IFN	ACTIVE	-40 to 85	3.50 \| 1ku	PLCC (FN) \| 44	View	26 \| TUBE
TL16C2552IFNG4	ACTIVE	-40 to 85	3.50 \| 1ku	PLCC (FN) \| 44	View	26 \| TUBE
TL16C2552IFNR	ACTIVE	-40 to 85	3.20 \| 1ku	PLCC (FN) \| 44	View	500 \| LARGE T&R	Purchase Samples
TL16C2552IFNRG4	ACTIVE	-40 to 85	3.20 \| 1ku	PLCC (FN) \| 44	View	500 \| 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

	TI Inventory Status	Reported Distributor Inventory
TL16C2552FN	As of 9:22 AM GMT, 03 Jul 2009	As of 9:22 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	4 Weeks	Americas	Avnet	88
			DigiKey	183
			Mouser Electronics	67
			Newark	104
			Rochester Electronics	520
		Asia	WPI	59
TL16C2552FNG4	As of 9:22 AM GMT, 03 Jul 2009	As of 9:22 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	4 Weeks	Americas	DigiKey	Available
TL16C2552FNR	As of 9:22 AM GMT, 03 Jul 2009	As of 9:22 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	4 Weeks	Americas	DigiKey	Available
	4 Weeks	Americas	Rochester Electronics	500
TL16C2552FNRG4	As of 9:22 AM GMT, 03 Jul 2009	As of 9:22 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	4 Weeks	Americas	DigiKey	Available
TL16C2552IFN	As of 9:22 AM GMT, 03 Jul 2009	As of 9:22 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	4 Weeks	Americas	DigiKey	127
TL16C2552IFNG4	As of 9:22 AM GMT, 03 Jul 2009	As of 9:22 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	4 Weeks	Americas	DigiKey	Available
TL16C2552IFNR	As of 9:22 AM GMT, 03 Jul 2009	As of 9:22 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	4 Weeks	Americas	DigiKey	Available
TL16C2552IFNRG4	As of 9:22 AM GMT, 03 Jul 2009	As of 9:22 AM GMT, 03 Jul 2009
	Lead Time	Region	Company	In Stock	Purchase
	4 Weeks	Americas	DigiKey	Available
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
TL16C2552FN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C2552FNG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C2552FNR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C2552FNRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C2552IFN	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C2552IFNG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C2552IFNR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	View	View
TL16C2552IFNRG4	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 TL16C2552

Datasheet

1.8-V to 5-V DUAL UART WITH 16-BYTE FIFOS (Rev. A) (PDF 451 KB) 2206 views
15 Jun 2006

Simulation Models

IBIS Model
- TL16C2552_33v (ZIP 51 KB) 92 views
  07 Aug 2006
- TL16C2552_25v (ZIP 51 KB) 92 views
  07 Aug 2006
- TL16C2552_5v (ZIP 52 KB) 87 views
  07 Aug 2006

More Literature

UART Quick Reference Card (Rev. D) (PDF 165 KB) 6540 views
09 Apr 2008

View More Literature for UARTs

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TL16C2552 Status: ACTIVE

1.8-V to 5-V Dual UART with 16-Byte FIFOs

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Datasheet

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