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TL16C2550 Status: ACTIVE

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


      
         
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Datasheet

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 TL16C2550TL16C2552 TL16C550D TL16C554A 
Number of Channels2  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/Package32QFN, 48TQFP  44PLCC  24BGA MICROSTAR JUNIOR, 32QFN, 48LQFP, 48TQFP  68PLCC, 80LQFP  
RatingCatalog  Catalog  Catalog  Catalog  
Tx / Rx FIFO INT TrigNo / 4 Levels  No / 4 Levels  No / 4 Levels  No / 4 Levels  
Auto RTS/CTSYes  Yes  Yes  Yes  
CPU InterfaceX86  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  
 SamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TL16C554A: Quad UART with 16-Byte FIFOs
  • TL16C550D: Asynchronous Communications Element With Autoflow Control
  • ADS8326: 16-Bit, Pseudo Diff Input, 250kSPS Serial Out, 2.7V to 5.5V Micro Power Sampling ADC
  • CC2510F32: 2.4 GHz Radio Transceiver, 8051 MCU and 32 kB Flash memory
  • TPS62040: Adjustable, 1.2-A, 95% Efficient Step-Down Converter, 18uA, MSOP-10

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 VCC = 5 V
  • Up to 20-MHz Clock Rate for up to 1.25-Mbaud Operation With VCC = 3.3 V
  • Up to 16-MHz Clock Rate for up to 1-Mbaud Operation With VCC = 2.5 V
  • Up to 10-MHz Clock Rate for up to 625-kbaud Operation With VCC = 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 1/2-, 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 TQFP (PFB), 32-Pin QFN (RHB), or 44-Pin PLCC (FN)(1) Packages
  • Pin Compatible with TL16C752B (48-Pin Package PFB)
  • APPLICATIONS
    • Point-of-Sale Terminals
    • Gaming Terminals
    • Portable Applications
    • Router Control
    • Cellular Data
    • Factory Automation

(1) Product Preview

Description

The TL16C2550 is a dual universal asynchronous receiver and transmitter (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 TL16C2550.

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 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

PricePackagingCAD Design ToolsSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSymbolsFootprintsSamples
TL16C2550IPFBACTIVE-40 to 852.60 | 1kuTQFP (PFB) | 48 View 250 | JEDEC TRAY (10+1) Download CAD Format for this Symbol Download CAD Format for this Footprint
TL16C2550IPFBG4ACTIVE-40 to 852.60 | 1kuTQFP (PFB) | 48 View 250 | JEDEC TRAY (10+1)  
TL16C2550IPFBRACTIVE-40 to 852.40 | 1kuTQFP (PFB) | 48 View 1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL16C2550IPFBRG4ACTIVE-40 to 852.40 | 1kuTQFP (PFB) | 48 View 1000 | LARGE T&R  Purchase Samples
TL16C2550IRHBACTIVE-40 to 852.60 | 1kuQFN (RHB) | 32 View 73 | JEDEC TRAY (5+1) Download CAD Format for this Symbol 
TL16C2550IRHBG4ACTIVE-40 to 852.60 | 1kuQFN (RHB) | 32 View 73 | JEDEC TRAY (5+1)  
TL16C2550IRHBRACTIVE-40 to 852.40 | 1kuQFN (RHB) | 32 View 3000 | LARGE T&R Download CAD Format for this Symbol Purchase Samples
TL16C2550IRHBRG4ACTIVE-40 to 852.40 | 1kuQFN (RHB) | 32 View 3000 | LARGE T&R  Purchase Samples
TL16C2550PFBACTIVE0 to 702.45 | 1kuTQFP (PFB) | 48 View 250 | JEDEC TRAY (10+1) Download CAD Format for this Symbol Download CAD Format for this Footprint
TL16C2550PFBG4ACTIVE0 to 702.45 | 1kuTQFP (PFB) | 48 View 250 | JEDEC TRAY (10+1)  
TL16C2550PFBRACTIVE0 to 702.20 | 1kuTQFP (PFB) | 48 View 1000 | LARGE T&R Download CAD Format for this Symbol Download CAD Format for this FootprintPurchase Samples
TL16C2550PFBRG4ACTIVE0 to 702.20 | 1kuTQFP (PFB) | 48 View 1000 | LARGE T&R  Purchase Samples
TL16C2550RHBACTIVE0 to 702.45 | 1kuQFN (RHB) | 32 View 73 | JEDEC TRAY (5+1) Download CAD Format for this Symbol 
TL16C2550RHBG4ACTIVE0 to 702.45 | 1kuQFN (RHB) | 32 View 73 | JEDEC TRAY (5+1)  
TL16C2550RHBRACTIVE0 to 702.20 | 1kuQFN (RHB) | 32 View 3000 | LARGE T&R Download CAD Format for this Symbol Purchase Samples
TL16C2550RHBRG4ACTIVE0 to 702.20 | 1kuQFN (RHB) | 32 View 3000 | 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 10:30 AM GMT, 06 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 4 WeeksTL16C2550IPFB
AmericasArrow 13
TI Lead Time*: 4 WeeksTL16C2550IPFBG4
AmericasAvnet 150
TI Lead Time*: 20 WeeksTL16C2550IPFBR
None Reported
View Distributors
TI Lead Time*: 20 WeeksTL16C2550IPFBRG4
None Reported
View Distributors
TI Lead Time*: 1 WeekTL16C2550IRHB
AmericasAvnet 64
EuropeAvnet-SILICA 73
Spoerle 73
WorldwideDigiKey 4
Mouser Electronics 102
TI Lead Time*: 1 WeekTL16C2550IRHBG4
WorldwideDigiKey  Available
TI Lead Time*: 1 WeekTL16C2550IRHBR
EuropeEBV Elektronik >1k
WorldwideDigiKey  Available
TI Lead Time*: 1 WeekTL16C2550IRHBRG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksTL16C2550PFB
AmericasArrow 107
Newark 133
AsiaWPI 274
EuropeAvnet-SILICA >1k
WorldwideMouser Electronics 21
TI Lead Time*: 20 WeeksTL16C2550PFBG4
None Reported
View Distributors
TI Lead Time*: 20 WeeksTL16C2550PFBR
None Reported
View Distributors
TI Lead Time*: 20 WeeksTL16C2550PFBRG4
None Reported
View Distributors
TI Lead Time*: 20 WeeksTL16C2550RHB
AmericasRochester Electronics 365
TI Lead Time*: 20 WeeksTL16C2550RHBG4
None Reported
View Distributors
TI Lead Time*: 20 WeeksTL16C2550RHBR
AmericasRochester Electronics >1k
TI Lead Time*: 20 WeeksTL16C2550RHBRG4
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 ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
TL16C2550IPFB RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TL16C2550IPFBG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TL16C2550IPFBR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TL16C2550IPFBRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TL16C2550IRHB RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TL16C2550IRHBG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TL16C2550IRHBR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TL16C2550IRHBRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TL16C2550PFB RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TL16C2550PFBG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TL16C2550PFBR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TL16C2550PFBRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TL16C2550RHB RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TL16C2550RHBG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TL16C2550RHBR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TL16C2550RHBRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView

* 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

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Datasheet

Application Notes

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