Features is Printer Port - Interface - UARTs (Universal Asynchronous Receiver Transmitter) Distributor - TL16C451FN TL16C452FN TL16C452FNR

Part Number	Manufacturer / Brand	Brife Description	Part Status	Features	Number of Channels	FIFO's	Protocol	Data Rate (Max)	Voltage - Supply	With Auto Flow Control	With IrDA Encoder/Decoder	With False Start Bit Detection	With Modem Control	Mounting Type	Package / Case	Supplier Device Package
TL16C451FN	Texas Instruments	IC ASYNC COMM ELEMENT 68-PLCC	Active	Printer Port	1, UART	-	-	-	4.75 V ~ 5.25 V	-	-	-	Yes	Surface Mount	68-LCC (J-Lead)	68-PLCC (24.23x24.23)
TL16C452FN	Texas Instruments	IC ASYNC COMM ELEMENT DUAL68PLCC	Active	Printer Port	2, DUART	-	-	-	4.75 V ~ 5.25 V	-	-	-	Yes	Surface Mount	68-LCC (J-Lead)	68-PLCC (24.23x24.23)
TL16C452FNR	Texas Instruments	IC ASYNC COMM ELEMENT 68-PLCC	Active	Printer Port	2, DUART	-	-	-	4.75 V ~ 5.25 V	-	-	-	Yes	Surface Mount	68-LCC (J-Lead)	68-PLCC (24.23x24.23)
TL16C552AFN	Texas Instruments	IC ASYNC COMM ELEMENT DUAL68PLCC	Active	Printer Port	2, DUART	16 Byte	-	1Mbps	4.75 V ~ 5.25 V	-	-	Yes	Yes	Surface Mount	68-LCC (J-Lead)	68-PLCC (24.23x24.23)
TL16C552AFNR	Texas Instruments	IC DUAL ASYNCH COMM 68-PLCC	Active	Printer Port	2, DUART	16 Byte	-	1Mbps	4.75 V ~ 5.25 V	-	-	Yes	Yes	Surface Mount	68-LCC (J-Lead)	68-PLCC (24.23x24.23)
TL16C552AIFN	Texas Instruments	IC ASYNC COMM ELEMENT DUAL68PLCC	Active	Printer Port	2, DUART	16 Byte	-	1Mbps	4.75 V ~ 5.25 V	-	-	Yes	Yes	Surface Mount	68-LCC (J-Lead)	68-PLCC (24.23x24.23)
TL16C552APN	Texas Instruments	IC ASYNC COMM ELMNT DUAL 80-LQFP	Last Time Buy	Printer Port	2, DUART	16 Byte	-	1Mbps	4.75 V ~ 5.25 V	-	-	Yes	Yes	Surface Mount	80-LQFP	80-LQFP (12x12)
TL16C552FN	Texas Instruments	IC ASYNC COMM ELEMENT DUAL68PLCC	Active	Printer Port	2, DUART	16 Byte	-	1Mbps	4.75 V ~ 5.25 V	-	-	Yes	Yes	Surface Mount	68-LCC (J-Lead)	68-PLCC (24.23x24.23)
TL16C552FNR	Texas Instruments	IC ASYNC COMM ELEMENT DUAL68PLCC	Active	Printer Port	2, DUART	16 Byte	-	1Mbps	4.75 V ~ 5.25 V	-	-	Yes	Yes	Surface Mount	68-LCC (J-Lead)	68-PLCC (24.23x24.23)
TL16PIR552PH	Texas Instruments	IC DUAL UART W/FIFO 80-QFP	Obsolete	Printer Port	2, DUART	16 Byte	-	1Mbps	4.75 V ~ 5.25 V	Yes	Yes	Yes	Yes	Surface Mount	80-BQFP	80-QFP (14x20)

Manufacturers for Interface - UARTs (Universal Asynchronous Receiver Transmitter)