TL16C750FN – 3.3V/5V Single UART with 64-Byte FIFOs and Auto-Flow Control SMD IC

Description

TL16C750FN – 3.3V/5V Single UART with 64-Byte FIFOs and Auto-Flow Control SMD IC The TL16C750FN is an Asynchronous Communications Element (ACE), commonly known as a UART, which serves as a crucial interface between a parallel data bus and a serial communication channel. It performs serial-to-parallel conversion on data received from peripheral devices and parallel-to-serial conversion on data transmitted from its central processing unit (CPU). This device is a functional upgrade of earlier models, maintaining full software compatibility while introducing advanced features to reduce CPU overhead and enhance data integrity in serial communication systems. A key advancement of the TL16C750FN is its integrated buffering system. It incorporates 64-byte FIFOs (First-In, First-Out) for both the receiver and transmitter sections. These FIFOs temporarily store data, allowing the CPU to handle data in blocks rather than on a character-by-character basis. This buffering significantly reduces the number of interrupts the CPU must service, thereby lowering software overhead and increasing overall system efficiency and performance in data-intensive applications. To further optimize data flow and prevent data loss, the TL16C750FN features a programmable auto-flow control mechanism. This system is composed of auto-RTS (Request To Send) and auto-CTS (Clear To Send). Auto-RTS automatically desserts the RTS signal when the receiver FIFO is nearing capacity, signaling the transmitting device to pause. Conversely, auto-CTS halts the transmitter if the CTS signal is inactive, indicating the receiving device is not ready. This hardware-managed handshake eliminates overrun errors without CPU intervention. Features: Pin-to-Pin Compatible With the Existing TL16C550B/C. Programmable 16- or 64-Byte FIFOs to Reduce CPU Interrupts. Programmable Auto-RTS and Auto-CTS. Capable of Running With All Existing TL16C450 Software. Up to 16-MHz Clock Rate for Up to 1-Mbaud Operation. Programmable Baud Rate Generator Allows Division of Any Input Reference Clock by 1 to (2¹⁶ – 1). 5-V and 3-V Operation. Register Selectable Sleep Mode and Low-Power Mode. Fully Programmable Serial Interface Characteristics (Data Bits, Parity, Stop Bits). Internal Diagnostic Capabilities (Loopback Controls). Modem Control Functions (CTS, RTS, DSR, DTR, RI, and DCD). Specifications: Category Specification Product Type: Asynchronous Communications Element (UART) Supply Voltage: 3.3V or 5V (3V to 3.6V / 4.75V to 5.25V) FIFO Size: Programmable 16-byte or 64-byte Max Baud Rate: Up to 1 Mbaud (with 16 MHz clock) Clock Input: Up to 16 MHz Operating Temperature: 0°C to 70°C Package Type: 44-Pin PLCC (FN) Data Bus: 8-bit, bidirectional Special Features: Auto-flow Control (Auto-RTS, Auto-CTS), Sleep Mode, Low-Power Mode Pinout Diagram: Footprint Diagram: Applications: Embedded Systems. Industrial Automation and Control. Data Acquisition Systems. Networking Equipment (Routers, Switches). Point-of-Sale (POS) Terminals. Medical Instrumentation. Package Contents: 1x TL16C750FN – 3.3V/5V Single UART with 64-Byte FIFOs and Auto-Flow Control SMD IC Datasheet

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