| 
 | 
 
 | 
| P | 
AMD, CNTLB, ELEC, ESWIT, GENS, GI, Harris, HP, Intel, Matra, Mitsubishi, Motorola, NEC, Opti, Philips, SGS, TECC, Temic | 
| PA | 
Apex, HP, Intel, Philips | 
| PAC* | 
WSI | 
| PAL* | 
AD, AMD, Fairchild, ICT*, MMI, Motorola, NS, TI | 
| PALC | 
AMD, Cypress | 
| PALCE | 
AMD, Cypress, NS | 
| PALLV | 
AMD | 
| PAZ | 
Intel | 
| PBF | 
Motorola | 
| PBL | 
Ericsson, SGS, Siemens | 
| PBY | 
Philips | 
| PBYR | 
Philips | 
| PC | 
Hitachi, Intel, LEDTR, Motorola, NS, Philips, Sharp, Toshiba | 
| PCA | 
Philips | 
| PCB | 
Philips | 
| PCC | 
Pijnenburg <r.joosten@pijnenburg.nl> | 
| PCD | 
AEG, Amperex, ST, Siemens, Signetics, Telefunken, NS, Philips | 
| PCDLU | 
Siemens | 
| PCF | 
AEG, Amperex, ST, Siemens, Signetics, Telefunken, Philips | 
| PCI | 
TI | 
| PCM* | 
BB | 
| PDM | 
Paradyne | 
| PE | 
PulseEngineering | 
| PEB | 
Siemens | 
| PEEL* | 
ICT* | 
| PEELPA | 
ICT* | 
| PEF | 
Siemens | 
| PG | 
IBM | 
| PH | 
Philips, SGS | 
| PIC | 
Microchip, Microchip, Micron, Motorola | 
| PKD | 
PMI | 
| PL | 
Altera, Philips | 
| PLA* | 
CPClare | 
| PLC | 
Philips | 
| PLEOHR | 
Philips | 
| PLHS | 
Signetics | 
| PLQ | 
SGS | 
| PLS | 
Philips, Signetics | 
| PLSI | 
Lattice | 
| PLU | 
Philips | 
| PLUS | 
Philips | 
| PLX | 
PLX | 
| PM | 
AD, Motorola, PMC Sierra, PMI | 
| PMB | 
Siemens | 
| PMBD | 
Harris, Philips, Siemens, Telefunken | 
| PMBF | 
Philips | 
| PMBFJ | 
Philips | 
| PMBS | 
Philips | 
| PMBT | 
Philips | 
| PMBTA | 
Philips | 
| PMBZ | 
Philips | 
| PMLL | 
Philips, Signetics | 
| PMM | 
Sanyo | 
| PN | 
Motorola, NS, Philips, Samsung | 
| PPC | 
IBM | 
| PQ | 
Sharp | 
| PR | 
Intel | 
| PRLL | 
Philips | 
| PS | 
ELCS, ELEC, NEC, NS | 
| PSB | 
Siemens | 
| PSD | 
WSI, now ST | 
| PST | 
Mitsubishi, NEC | 
| PT | 
Cirrus, Sharp | 
| PTC | 
Philips | 
| PVA | 
IR | 
| PVAZ | 
IR | 
| PVC | 
PARDS | 
| PVDZ | 
IR | 
| PVI | 
IR | 
| PVR | 
IR, TI | 
| PWMSI | 
Siliconix | 
| PWR | 
BB | 
| PXB | 
Siemens | 
| PXF | 
Siemens | 
| PXTA | 
Philips | 
| PZT | 
Motorola | 
| PZTA | 
Philips |