| LM555 MD8 | National Semiconductor Corporation | LM555 Timer | |
| LM555 MDC | National Semiconductor Corporation | LM555 Timer | |
| LM555 MWC | National Semiconductor Corporation | LM555 Timer | |
| LM555CM | National Semiconductor Corporation | LM555 Timer; Package: SOIC NARROW; No of Pins: 8 | |
| LM555CMM | National Semiconductor Corporation | LM555 Timer; Package: MINI SOIC; No of Pins: 8 | |
| LM555CMMX | National Semiconductor Corporation | LM555 Timer; Package: MINI SOIC; No of Pins: 8 | |
| LM555CMX | National Semiconductor Corporation | LM555 Timer; Package: SOIC NARROW; No of Pins: 8 | |
| LM555CN | National Semiconductor Corporation | LM555 Timer; Package: MDIP; No of Pins: 8 | |
| LM555H-MLS | National Semiconductor Corporation | LM555 Timer; Package: TO-99; No of Pins: 8 | |
| LM555H/883 | National Semiconductor Corporation | LM555 Timer; Package: TO-99; No of Pins: 8 | |
| LM555J/883 | National Semiconductor Corporation | LM555 Timer; Package: CERDIP; No of Pins: 8 | |