| Part Number | TL16C554AFNR | TL16C552AFNR | 
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | 
| Category | Interface - UARTs (Universal Asynchronous Receiver Transmitter) | Interface - UARTs (Universal Asynchronous Receiver Transmitter) | 
|   |   | |
| Product Status | Active | Active | 
| Features | - | Printer Port | 
| Number of Channels | 4, QUART | 2, DUART | 
| FIFO's | 16 Byte | 16 Byte | 
| Protocol | - | - | 
| Data Rate (Max) | 1Mbps | 1Mbps | 
| Voltage - Supply | 3V ~ 5.25V | 4.75V ~ 5.25V | 
| With Auto Flow Control | Yes | - | 
| With IrDA Encoder/Decoder | - | - | 
| With False Start Bit Detection | Yes | Yes | 
| With Modem Control | Yes | Yes | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 68-LCC (J-Lead) | 68-LCC (J-Lead) | 
| Supplier Device Package | 68-PLCC (24.23x24.23) | 68-PLCC (24.23x24.23) |