| Family | LPC900 (50) LPC700 (9) 80C51 (74) | Don't Care |
| RAM | ≥128B (132) ≥256B (109) ≥512B (57) ≥768B (27) ≥1KB (19) ≥2KB (6) ≥3KB (2) | Don't Care |
| Code Memory | ≥1KB (121) ≥2KB (112) ≥4KB (104) ≥8KB (84) ≥16KB (50) ≥32KB (27) ≥64KB (13) ROMless (12) | Don't Care |
| Code Mem Type | Flash (76) OTP (36) External (12) ROM (9) | Don't Care |
EEPROM (KB)  | ≥512B (50) ≥1KB (50) ≥2KB (42) ≥4KB (32) ≥8KB (22) None (83) | Don't Care |
GP Timers  | 0 (1) 1 (5) 2 (82) 3 (33) 4 (5) 5 (7) | Don't Care |
| Special Timers | WD (107) RTC (71) None (26) | Don't Care |
Motor PWM  | ≥3 (8) None (125) | Don't Care |
Quadrature  | No (133) | Don't Care |
Standard PWM  | 0 (36) 1 (7) 2 (36) 5 (46) 6 (8) | Don't Care |
| UART Interface(s) | 0 (3) 1 (126) 2 (4) | Don't Care |
| I2C Interface(s) | 0 (63) 1 (67) 2 (3) | Don't Care |
| CAN Interface(s) | 0 (129) 1 (3) 2 (1) | Don't Care |
| SPI Interface(s) | 0 (87) 1 (46) | Don't Care |
| USB Interface(s) | None (133) | Don't Care |
| ADC Channel(s) | ≥2 (42) ≥4 (42) ≥8 (19) None (91) | Don't Care |
| DAC Channel(s) | ≥1 (21) ≥2 (8) None (112) | Don't Care |
| ADC/DAC Resolution | 8-Bits (25) 10-Bits (17) | Don't Care |
| I/O Pins | ≤10 (5) 10-20 (30) 20-40 (88) ≥40 (11) | Don't Care |
| Program Security | Available (121) None (12) | Don't Care |
| Clocks/Instruction | 1 (1) 2 (49) 6 (53) 12 (30) | Don't Care |
Max Clock (MHz)  | 7.373 (3) 12 (1) 16 (7) 18 (47) 20 (9) 24 (6) 33 (51) 40 (9) | Don't Care |
| Ext Interrupts | ≥1 (133) ≥2 (125) ≥3 (47) ≥4 (10) ≥5 (10) ≥6 (10) | Don't Care |
| Ext Bus Interface | Yes (73) No (60) | Don't Care |
| Package | PLCC (78) DIL (62) TSSOP (48) LQFP (33) QFP (29) TQFP (12) SO (8) HVQFN (3) HVSON (1) | Don't Care |