| L | 
Motorola, NS, QT, SAMT, Sanyo, SGS, Siliconix, Siltronics, ST, TI, Toshiba, Unitrode | 
| LA | 
Motorola, Samsung, Sanyo, SGS, Sony, Toshiba | 
| LAA | 
CPClare | 
| LAN | 
SMC | 
| LAS | 
Sanyo | 
| LB | 
Sanyo | 
| LC | 
Microchip, Motorola, Sanyo, Sharp, Sony | 
| LCE | 
GI | 
| LCP | 
SGS | 
| LCX | 
NS | 
| LD | 
CK, Intel, Siliconix, Siltronics | 
| LED | 
QT | 
| LF | 
LT, Motorola, NS, SGS, TI | 
| LFT | 
NS | 
| LG | 
Siemens | 
| LGT | 
Siemens | 
| LH | 
ATT, LT, NS, Sanyo, Sharp, Siemens, Sony | 
| LIU | 
AD | 
| LJE | 
Motorola | 
| LJKC | 
Motorola | 
| LL | 
BKC, ITT, Telefunken | 
| LLSD | 
ITT | 
| LM | 
Goldstar, Harris, Hitachi, IR, LT, Motorola, NEC, NS, Philips, Rohm, Samsung, Sanyo, SGS, Sharp, Signetics, Sony, TELCO, TI, Toshiba | 
| LMC | 
NS | 
| LMCR | 
Motorola | 
| LMD | 
NS | 
| LMF | 
NS | 
| LMS | 
NS | 
| LMT | 
Motorola | 
| LN | 
Matsushita, NS | 
| LNA | 
SMC | 
| LO | 
Philips | 
| LP | 
Intel, Motorola, NEC, NS, Sharp, Supertex | 
| LPC | 
NS | 
| LR | 
Sharp, Siemens, Supertex | 
| LS* | 
LSI Computer Systems, Motorola, SGS, Siemens, TI | 
| LSC | 
Motorola, SGS | 
| LSCC | 
Motorola | 
| LSP | 
Motorola | 
| LST | 
Siemens | 
| LT | 
ATT, Lattice, LT, Maxim, TI | 
| LTC | 
LOGDE, LT, Maxim | 
| LTL | 
LT | 
| LTV | 
LT, QT | 
| LTZ | 
LT | 
| LV | 
Motorola, Sanyo | 
| LVT | 
Philips | 
| LX | 
IR | 
| LXT | 
L1, Samsung |