| Subcategory | 1-Channel (11) 2-Channel (12) 4-Channel (10) | Don't Care |
| Interface | Intel (29) Motorola (6) VLIO (4) | Don't Care |
VCC  | 1.8V (6) 2.5V (27) 3.3V (27) 5.0V (25) | Don't Care |
| Datarate (Mbps) | ≥0.125 (31) ≥0.5 (31) ≥1 (31) ≥2 (31) ≥3 (31) ≥4 (25) ≥5 (25) | Don't Care |
| Flow Control | RTS/CTS (28) XON/XOFF (25) Both (25) | Don't Care |
| Power Down | Yes (27) No (6) | Don't Care |
| DMA | Yes (28) No (5) | Don't Care |
| Tx FIFO (Bytes) | 16 (10) 32 (4) 64 (11) 128 (8) | Don't Care |
| Rx FIFO (Bytes) | 16 (10) 32 (4) 64 (11) 128 (8) | Don't Care |
| IrDA Channel(s) | Yes (19) No (14) | Don't Care |
| Package | LQFP (24) HVQFN (16) PLCC (16) DIL (5) TFBGA (5) LFBGA (1) | Don't Care |