ST16C2451 - Exar Corporation

ST16C2451 (ST16C2450 / ST16C2451) 2.97V TO 5.5V DUART

The ST16C2450 (2450) is a dual universal asynchronous receiver and transmitter (UART). The ST16C2450 is an improved version of the ST16C2450 with lower operating voltage and 5 volt tolerant inputs. The 2450 provides enhanced UART functions, a modem control interface and data rates up to 1.5 Mbps. Onboard status registers provide the user with error indicatio.

Features

Added feature in devices with top marking "A2 YYWW" and newer: s 5 Volt Tolerant Inputs
• 2.97 to 5.5 Volt Operation
• Pin-to-pin compatible to Exar’s ST16C2450, ST16C2550, XR16C2850 TQFP package XR16L2550, XR16L2750 and
• Pin-to-pin compatible to TI’s TL16C752B on the 48
• 2 independent UART channels s Up to 1.5 Mbps data rate with a 24 MHz crystal oscillator or external clock frequency 1 byte Transmit FIFO 1 byte Receive FIFO with error tags Status report registers Modem control signals (CTS#, RTS#, DSR#, DTR#, RI#, CD#) Programmable character lengths (5, 6, 7, 8) with even, odd, or no pa.