H16550S: Synchronous 16550 UART with FIFO Core - The H16550S is a standard UART providing 100% software compatibility with the popular Texas Instruments 16550 device. It performs serial-to-parallel conversion on data originating from modems or… CAST develops, sells, and supports digital Silicon IP Cores which electronic system designers use to shorten development time and lower production risk. CAST uniquely gives system designers the CAST… Arria® V GT FPGA Arria® V GX FPGA Arria® V GZ FPGA Arria® V ST FPGA Arria® V SX FPGA Cyclone® IV E FPGA Cyclone® IV GX FPGA Cyclone® V E FPGA Cyclone® V GT FPGA Cyclone® V GX FPGA Cyclone® V SE FPGA Cyclone® V ST FPGA Cyclone® V SX FPGA Agilex™ 3 FPGA C-Series Agilex™ 5 FPGA D-Series Agilex™ 5 FPGA E-Series Agilex™ 7 FPGA F-Series Agilex™ 7 FPGA I-Series Agilex™ 7 FPGA M-Series Agilex™ 9 FPGA Direct RF-Series Arria® 10 GT FPGA Arria® 10 GX FPGA Arria® 10 SX FPGA Cyclone® 10 GX FPGA Cyclone® 10 LP FPGA MAX® 10 FPGA Stratix® 10 AX FPGA Stratix® 10 DX FPGA Stratix® 10 GX FPGA Stratix® 10 SX FPGA Stratix® 10 TX FPGA Stratix® IV E FPGA Stratix® IV GX FPGA Stratix® V GS FPGA Stratix® V GX FPGA The H16550S is a standard UART providing 100% software compatibility with the popular Texas Instruments 16550 device. It performs serial-to-parallel conversion on data originating from modems or other serial devices, and performs parallel-to-serial conversion on data from a CPU to these devices. The H16550S can be run in either 16450-compatible character mode or in 16550-compatible FIFO mode, where an internal FIFO relieves the CPU of excessive software overhead. Developed for easy reuse in FPGA or ASIC applications, the H16550S is available optimized for several technologies with competitive utilization and performance characteristics. Serial Defense Industrial Test H16550S: Synchronous 16550 UART with FIFO Core Key Features Capable of running all existing 16450 and 16550a software Offering Brief Yes Yes No Yes Encrypted Verilog Encrypted VHDL Verilog VHDL Arria® V GT FPGA Arria® V GX FPGA Arria® V GZ FPGA Arria® V ST FPGA Arria® V SX FPGA Cyclone® IV E FPGA Cyclone® IV GX FPGA Cyclone® V E FPGA Cyclone® V GT FPGA Cyclone® V GX FPGA Cyclone® V SE FPGA Cyclone® V ST FPGA Cyclone® V SX FPGA Agilex™ 3 FPGA C-Series Agilex™ 5 FPGA D-Series Agilex™ 5 FPGA E-Series Agilex™ 7 FPGA F-Series Agilex™ 7 FPGA I-Series Agilex™ 7 FPGA M-Series Agilex™ 9 FPGA Direct RF-Series Arria® 10 GT FPGA Arria® 10 GX FPGA Arria® 10 SX FPGA Cyclone® 10 GX FPGA Cyclone® 10 LP FPGA MAX® 10 FPGA Stratix® 10 AX FPGA Stratix® 10 DX FPGA Stratix® 10 GX FPGA Stratix® 10 SX FPGA Stratix® 10 TX FPGA Stratix® IV E FPGA Stratix® IV GX FPGA Stratix® V GS FPGA Stratix® V GX FPGA Yes Yes 24.3.1 Offering Brief Production a1JUi0000049U6mMAE What's Included Verilog/System Verilog, Encrypted Verilog, VHDL, Encrypted VHDL, or FPGA Netlist Ordering Information H16550S Direct a1JUi0000049U6mMAE Production Intellectual Property (IP) a1MUi00000BO8rRMAT a1MUi00000BO8rRMAT Member 2026-04-21T12:58:28.000+0000 The H16550S is a standard UART providing 100% software compatibility with the popular Texas Instruments 16550 device. It performs serial-to-parallel conversion on data originating from modems or other serial devices, and performs parallel-to-serial conversion on data from a CPU to these devices. The H16550S can be run in either 16450-compatible character mode or in 16550-compatible FIFO mode, where an internal FIFO relieves the CPU of excessive software overhead. Developed for easy reuse in FPGA or ASIC applications, the H16550S is available optimized for several technologies with competitive utilization and performance characteristics. Partner Solutions