Part Number Description Data Bus Interface Channels Max Data Rate 5V (Mbps) Max Data Rate 3.3V (Mbps) Max Data Rate 2.5V (Mbps) Max Data Rate 1.8V (Mbps) Tx FIFO (Bytes) Rx FIFO (Bytes) Auto Flow Control Supply Voltage Range VCC (V) Selectable/ Programable Trigger Levels Max UART/GPIO Input Voltage (V) Max UART/GPIO Output Voltage (V) Cross Reference Pin/Package


























AT16C554D Quad UART with 16-Byte FIFOs Intel, Motorola 4 1.5 0.5 na na 16 16 - 2.97 to 5.5 S VCC VCC PLCC-68, LQFP-64
AT16C554 Quad UART with 16-Byte FIFOs Intel, Motorola 4 1.5 0.5 na na 16 16 - 2.97 to 5.5 S VCC VCC ST16C554 LQFP-64
AT3300 6 channel with 256 byte FIFOs Intel 6 5 5 256 256 3.3 LQFP80
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