TL16C451

Supply voltage range, V_CC (see Note 1 ) . . . . . . . . . . . . . . . . . . . . .  . . . . .0.5 V to 7 V
Input voltage range at any input, V_I . . . . . . . . . . . . . . . . . . . .  . . . . . . . . . 0.5 V to 7 V
Output voltage range, V_O . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . 0.5 V to 7 V
Continuous total power dissipation . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . .1100 mW
Operating free-air temperature range, T_A . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . 65°C to 150°C
Case temperature for 10 seconds, T_C . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . 260°C
† Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: All voltage values are with respect to GND.

The TL16C451 and TL16C452 provide single- and dual-channel (respectively) serial interfaces along with a single Centronix-type parallel-port interface. The serial interfaces provide a serial-to-parallel conversion for data received from a peripheral device or modem and a parallel-to-serial conversion for data transmitted by a CPU. The parallel interface provides a bidirectional parallel data port that fully conforms to the requirements for a Centronix-type printer interface. A CPU can read the status of the asynchronous communications element (ACE) interfaces at any point in the operation. The status includes the state of the modem signals (CTS, DSR, RLSD, and RI) and any changes to these signals that have occurred since the last time they were read, the state of the transmitter and receiver including errors detected on received data, and printer status. The TL16C451 and TL16C452 provide control for modem signals (RTS and DTR), interrupt enables, baud rate programming, and parallel-port control signals.