TL16C554FNRG4

Product Summary

The TL16C554FNRG4 is an asynchronous communications element (ACE). The TL16C554FNRG4 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. To minimize system overhead and maximize system efficiency, all logic is on the chip. It is available in a 68-pin plastic-leaded chip-carrier (PLCC)FN package and in an 80-pin (TQFP) PN package.

Parametrics

TL16C554FNRG4 absolute maximum ratings: (1)Supply voltage range:–0.5 V to 7 V; (2)Input voltage range at any input:–0.5 V to 7 V; (3)Output voltage range:–0.5 V to VCC + 3 V; (4)Continuous total power dissipation at (or below) 70℃:500 mW; (5)Operating free-air temperature range:–0℃ to 70℃; (6)Storage temperature range:–65℃ to 150℃.

Features

TL16C554FNRG4 features: (1)Integrated Asynchronous Communications Element; (2)Consists of Four Improved TL16C550 ACEs Plus Steering Logic; (3)In FIFO Mode, Each ACE Transmitter and Receiver Is Buffered With 16-Byte FIFO to Reduce the Number of Interrupts to CPU; (4)In TL16C450 Mode, Hold and Shift Registers Eliminate Need for Precise Synchronization Between the CPU and Serial Data; (5)Up to 16-MHz Clock Rate for up to 1-Mbaud Operation; (6)Programmable Baud Rate Generators Which Allow Division of Any Input Reference Clock by 1 to (216–1) and Generate an Internal 16 × Clock; (7)Adds or Deletes Standard Asynchronous Communication Bits (Start, Stop, and Parity) to or From the Serial Data Stream; (8)Independently Controlled Transmit, Receive, Line Status, and Data Set Interrupts; (9)False Start Bit Detection; (10)Complete Status Reporting Capabilities; (11)Line Break Generation and Detection; (12)Internal Diagnostic Capabilities:Loopback Controls for Communications Link Fault Isolation, Break, Parity, Overrun, Framing Error Simulation; (13)Fully Prioritized Interrupt System Controls; (14)Modem Control Functions (CTS, RTS, DSR,DTR, RI, and DCD); (15)3-State Outputs Provide TTL Drive Capabilities for Bidirectional Data Bus and Control Bus.

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