TL16C754BPNR

Product Summary

The TL16C754BPNR is a quad universal asynchronous receiver/transmitter (UART) with 64－byte FIFOs, automatic hardware/software flow control, and data rates up to 3 Mbps. The TL16C754BPNR offers enhanced features. The TL16C754BPNR has a transmission control register (TCR) that stores received FIFO threshold level to start/stop transmission during hardware and software flow control. With the FIFO RDY register, the software gets the status of TXRDY/RXRDY for all four ports in one access. On－chip status registers provide the user with error indications, operational status, and modem interface control. System interrupts may be tailored to meet user requirements. An internal loopback capability allows onboard diagnostics. The UART transmits data sent to it from the peripheral 8－bit bus on the TX signal and receives characters on the RX signal. Characters can be programmed to be 5, 6, 7, or 8 bits. The UART has a 64－byte receive FIFO and transmit FIFO and can be programmed to interrupt at different trigger levels. The UART generates its own desired baud rate based upon a programmable divisor and its input clock. The TL16C754BPNR can transmit even, odd, or no parity and 1, 1.5, or 2 stop bits. The receiver can detect break, idle or framing errors, FIFO overflow, and parity errors. The transmitter can detect FIFO underflow. The UART also contains a software interface for modem control operations, and software flow control and hardware flow control capabilities.

Parametrics

TL16C754BPNR absolute maximum ratings: (1)Supply voltage range, VCC: －0.5 V to 6 V; (2)Input voltage range, VI: －0.5 V to VCC +0.5 V; (3)Output voltage range, VO: －0.5 V to VCC +0.5 V; (4)Operating free-air temperature range, TA: －40°C to 85°C; (5)Storage temperature range, Tstg: －65°C to 150°C.

Features

TL16C754BPNR features: (1)ST16C654 Pin Compatible With Additional Enhancements; (2)Supports Up To 24－MHz Crystal Input Clock ( 1.5 Mbps); (3)Supports Up To 48－MHz Oscillator Input Clock ( 3 Mbps)for 5－V Operation; (4)Supports Up To 32－MHz Oscillator Input Clock ( 2 Mbps)for 3.3－V Operation; (5)64－Byte Transmit FIFO; (6)64－Byte Receive FIFO With Error Flags; (7)Programmable and Selectable Transmit and Receive FIFO Trigger Levels for DMA and Interrupt Generation; (8)Programmable Receive FIFO Trigger Levels for Software/Hardware Flow Control; (9)Characterized for Operation From －40°C to 85°C; (10)Software Selectable Baud Rate Generator; (11)Prescalable Provides Additional Divide by 4 Function; (12)Fast Access 2 Clock Cycle IOR/IOW Pulse Width; (13)Programmable Sleep Mode.

Diagrams