(China (Mainland))
Product Summary
The TL16C2550PFB 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 will describe the behavior of each ACE, with the understanding that two such devices are incorporated into the TL16C2550PFB. The applications of the TL16C2550PFB include Point-of-Sale Terminals, Gaming Terminals, Portable Applications, Router Control, Cellular Data and Factory Automation.
Parametrics
TL16C2550PFB absolute maximum ratings: (1)Supply voltage range, V CC: -0.5 V to 7 V; (2)Input voltage range at any input, VI: -0.5 V to 7 V; (3)Output voltage range, VO: -0.5 V to 7 V; (4)Operating free-air temperature, T A: -40 to 85℃; (5)Storage temperature range, T stg: -65 to 150℃; (6)Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: 260℃.
Features
TL16C2550PFB features: (1)Programmable Auto-RTS and Auto-CTS; (2)In Auto-CTS Mode, CTS Controls Transmitter; (3)In Auto-RTS Mode, RCV FIFO Contents and Threshold Control RTS; (4)Serial and Modem Control Outputs Drive a RJ11 Cable Directly When Equipment Is on the Same Power Drop; (5)Capable of Running With All Existing TL16C450 Software; (6)After Reset, All Registers Are Identical to the TL16C450 Register Set; (7)Up to 24-MHz Clock Rate for up to 1.5-Mbaud Operation With V CC = 5 V; (8)Up to 20-MHz Clock Rate for up to 1.25-Mbaud Operation With V CC = 3.3 V; (9)Up to 16-MHz Clock Rate for up to 1-Mbaud Operation With V CC = 2.5 V; (10)In the TL16C450 Mode, Hold and Shift Registers Eliminate the Need for Precise Synchronization Between the CPU and Serial Data.
Diagrams
| Image | Part No | Mfg | Description |  |
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 TL16C2550PFB |
Texas Instruments |
UART Interface IC 1.8 to 5-V Dual UART w/16-Byte FIFOs |
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TL16C2550PFBG4 |
Texas Instruments |
UART Interface IC 16-byte dual-FIFO UART |
Data Sheet |
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TL16C2550PFBR |
Texas Instruments |
UART Interface IC 1.8 to 5-V Dual UART w/16-Byte FIFOs |
Data Sheet |
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TL16C2550PFBRG4 |
Texas Instruments |
UART Interface IC 16-byte dual-FIFO UART |
Data Sheet |
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