| Subcategory | 1-Channel (11) 2-Channel (21) 4-Channel (7) 8-Channel (2) | Don't Care |
| Family | 16C (23) 68C (3) SC26 (6) SC68 (2) SC28 (7) | Don't Care |
| Interface | Intel (32) Motorola (18) VLIO (4) | Don't Care |
VCC  | 1.8V (6) 2.5V (20) 3.3V (26) 5.0V (33) | Don't Care |
| Datarate (Mbps) | ≥0.125 (39) ≥0.5 (33) ≥1 (32) ≥2 (26) ≥3 (26) ≥4 (21) ≥5 (21) | Don't Care |
| Flow Control | RTS/CTS (36) XON/XOFF (23) Both (23) | Don't Care |
| Power Down | Yes (32) No (9) | Don't Care |
| DMA | Yes (27) No (14) | Don't Care |
| Tx FIFO (Bytes) | 1 (7) 8 (2) 16 (11) 32 (3) 64 (8) 128 (8) 256 (2) | Don't Care |
| Rx FIFO (Bytes) | 3 (7) 8 (2) 16 (11) 32 (3) 64 (8) 128 (8) 256 (2) | Don't Care |
| IrDA Channel(s) | Yes (14) No (27) | Don't Care |