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首 页 > 新闻动态 > 公司新闻 > 供应 TI TL16C554A 四UART 16字节的FIFO
供应 TI TL16C554A 四UART 16字节的FIFO
 TL16C554A ACTIVE) Quad UART with 16-Byte FIFOs
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 VCC = 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
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