| nr | name | cat | description | manufacturer | 
| 51 | UT51 | dram | EDO DRAM, see www.utron.com.tw/dram.htm | UTRON | 
| 510 |  | periph | ISA-bus* IDE cache controller | BusLogic* | 
| 510 | AD510 | amp | Precision, Low Drift, data | AD | 
| 510 | MAX510 | dac,spi | DAC, 8-bit 4-channel multiplying with shared reference inputs | Maxim | 
| 510 | MAX510 | dac | quad, Serial 8-Bit DAC's with Rail-to-Rail Outputs, 2 Reference Inputs | Maxim* | 
| 510 | MB510 | divider | Prescaler /128/144/256/272 max. 2,7 GHz (SO8) | order from Barend | 
| 510 | MM510 | shift | 64*2 DSR* TO99 | NS | 
| 5100 | UM5100 |  | Voice Processor, pinout | UMC | 
| 5100114 | 5100114H |  | MIDI out, pinout | ??? | 
| 51005 | 5C1005 | sram | 256K*4 cache SRAM* | Micron* | 
| 51008 | 5C1008 | sram | 128K*8 cache SRAM* | Micron* | 
| 5101 | 5101 | sram | 256*4 CMOS* SRAM* 650ns | 
| 5101 | PCD5101 | sram | 256x4-bit CMOS* static RAM DIL22 | Philips | 
| 51012 | MWS5101AEL2 | sram | 22 PDIP 0+70C 5.0V 250NS 256 X 4 RAM TTL inputs | Harris | $6/1K | 
| 51012 | MWS5101EL2 | sram | 22 PDIP 0+70C 5.0V 250NS 256 X 4 RAM | Harris | $5/1K | 
| 51013 | AY5-1013 | uart | UART | GI | $1.25 | 
| 51013 | MWS5101ADL3 | sram | 22 CDIP 0+70C 5.0V 350NS 256 X 4 RAM TTL inputs | Harris | $16/1K | 
| 51013 | MWS5101AEL3 | sram | 22 PDIP 0+70C 5.0V 350NS 256 X 4 RAM TTL inputs | Harris | $4/1K | 
| 51013 | MWS5101AEL3X | sram | MWS5101AEL3 with 160 hour +125C burn-in | Harris | $5/1K | 
| 51013 | MWS5101DL3X | sram | MWS5101DL3 with 160 hour +125C burn-in | Harris | $17/1K | 
| 51013 | MWS5101EL3 | sram | 22 PDIP 0+70C 5.0V 350NS 256 X 4 RAM | Harris | $3/1K | 
| 5108 | IH5108 | anamux | See MAX358 | Maxim* | 
| 511 | ADG511 |  | LC2MOS Precision 5V/3V Quad* SPST* Switches, data | AD | 
| 511 | ADG511 | switch | quad SPST* analog switch NO | AD | 
| 511 | MB511 | divider | Prescaler /1/2/8 max.1.2GHz(typ.) DIP8 sensitive: -26 dBm | order from Barend | 
| 511 | ics511 |  | www.icst.com/pdf/ics511.pdf | ICS* | 
| 511000 |  | dram | 1M*1 DRAM | Motorola | 
| 511000 | 511000 | dram | 1M*1 DRAM | 
| 511000 | HB511000 | dram | 1M*1 DRAM | Siemens | 
| 511000 | HM511000AP |  | 1Mx1 DRAM, pinout | Hitachi | 
| 511000 | MSM511000C/CL | dram | 1M*1 DRAM FPM | Oki | 
| 5111 | IMP5111CDP |  | Non-linear SCSI Terminator, pinout | IMP, Inc. | 
| 5113 | M5113 | peripheral | Enhanced Super I/O controller | ALi* | 
| 5114 | PCD5114 | sram | 1024x4-bit CMOS* static RAM DIL18 | Philips | 
| 51141 | MWS5114D1 | sram | 18 CDIP 0+70C 5.0V 300NS 1024X4 RAM | Harris | $18/1K | 
| 51141 | MWS5114E1 | sram | 18 PDIP 0+70C 5.0V 300NS 1024X4 RAM | Harris | $5/1K | 
| 51142 | MWS5114D2 | sram | 18 CDIP 0+70C 5.0V 250NS 1024X4 RAM | Harris | $26/1K | 
| 51142 | MWS5114E2 | sram | 18 PDIP 0+70C 5.0V 250NS 1024X4 RAM | Harris | $7/1K | 
| 51142 | MWS5114E2X | sram | MWS5114E2 with 160 hour +125C burn-in | Harris | $9/1K | 
| 51143 | MWS5114D3 | sram | 18 CDIP 0+70C 5.0V 200NS 1024X4 RAM | Harris | $30/1K | 
| 51143 | MWS5114D3X | sram | MWS5114D3 with 160 hour +125C burn-in | Harris | $37/1K | 
| 51143 | MWS5114E3 | sram | 18 PDIP 0+70C 5.0V 200NS 1024X4 RAM | Harris | $8/1K | 
| 5115 | IMP5115CD |  | Non-linear SCSI Terminator, pinout | IMP, Inc. | 
| 5115 | IMP5115CDW |  | Non-linear SCSI Terminator, pinout | IMP, Inc. | 
| 5115 | IMP5115CPWP |  | Non-linear SCSI Terminator, pinout | IMP, Inc. | 
| 5116100 | HY5116100 | dram | 16M*1 DRAM 4K/64ms ref | Hyundai | 
| 5116100 | MSM5116100A | dram | 16M*1 DRAM FPM | Oki | 
| 5116100 | MSM51V16100 | dram | 16M*1 DRAM FPM  (3.3V, 4k refresh) | Oki | 
| 5116160 | HY5116160 | dram | 1M*16 DRAM 4K/64ms ref, dual CAS | Hyundai | 
| 5116160 | HY5116160 | dram | 1M*16 DRAM 4K/64ms ref, dual CAS, WPB | Hyundai | 
| 5116160 | MSM5116160 | dram | 1M*16 DRAM FPM | Oki | 
| 5116160 | MSM5116160B | dram | 1M*16 DRAM FPM    (4k refresh) | Oki | 
| 5116160 | MSM51V16160A | dram | 1M*16 DRAM FPM (3.3V, 4k refresh) | Oki | 
| 5116165 | MSM5116165B | dram | 1M*16 DRAM EDO    (4k refresh) | Oki | 
| 5116165 | MSM51V16165A | dram | 1M*16 DRAM EDO (3.3V, 4k refresh) | Oki | 
| 5116400 | HM5116400 | dram | 4M*4 DRAM | Hitachi | 
| 5116400 | HY5116400 | dram | 4M*4 DRAM 4K/64ms ref | Hyundai | 
| 5116400 | MSM5116400A | dram | 4M*4 DRAM FPM     (4k refresh) | Oki | 
| 5116400 | MSM5116400A-60JS | dram | DRAM $7.55 (1997) 4*4-60 4K FPM | OKI | 
| 5116400 | MSM5116400B | dram | 4M*4 DRAM FPM     (4k refresh) | Oki | 
| 5116400 | MSM51V16400A | dram | 4M*4 DRAM FPM  (3.3V, 4k refresh) | Oki | 
| 5116405 | MSM5116405A | dram | 4M*4 DRAM EDO     (4k refresh) | Oki | 
| 5116405 | MSM5116405B | dram | 4M*4 DRAM EDO     (4k refresh) | Oki | 
| 5116405 | MSM51V16405A | dram | 4M*4 DRAM EDO  (3.3V, 4k refresh) | Oki | 
| 5116410 | HY5116410 | dram | 4M*4 DRAM 4K/64ms ref WPB | Hyundai | 
| 5116800 | HY5116800 | dram | 2M*8 DRAM 4K/64ms ref WPB | Hyundai | 
| 5116800 | HY5116800 | dram | 2M*8 DRAM 4K/64ms ref | Hyundai | 
| 5116800 | MSM5116800A | dram | 2M*8 DRAM FPM     (4k refresh) | Oki | 
| 5116805 | MSM5116805A | dram | 2M*8 DRAM EDO     (4k refresh) | Oki | 
| 5116805 | MSM51V16805A | dram | 2M*8 DRAM EDO  (3.3V, 4k refresh) | Oki | 
| 5117100 | HY5117100 | dram | 16M*1 DRAM 2K/32ms ref | Hyundai | 
| 5117100 | MSM5117100 | dram | 16M*1 DRAM | Oki | 
| 5117100 | MSM51V17100 | dram | 16M*1 DRAM FPM  (3.3V, 2k refresh) | Oki | 
| 5117400 | HM5117400 | dram | 4M*4 DRAM | Hitachi | 
| 5117400 | HY5117400 | dram | 4M*4 DRAM 2K/32ms ref | Hyundai | 
| 5117400 | MSM5117400A | dram | 4M*4 DRAM FPM     (2k refresh) | Oki | 
| 5117400 | MSM5117400B | dram | 4M*4 DRAM FPM     (2k refresh) | Oki | 
| 5117400 | MSM51V17400A | dram | 4M*4 DRAM FPM  (3.3V, 2k refresh) | Oki | 
| 5117405 | MSM5117405B | dram | 4M*4 DRAM EDO     (2k refresh) | Oki | 
| 5117405 | MSM51V17405A | dram | 4M*4 DRAM EDO  (3.3V, 2k refresh) | Oki | 
| 5117410 | HY5117410 | dram | 4M*4 DRAM 2K/32ms ref WPB | Hyundai | 
| 5117440 | TC5117440 | dram | 4M*4 DRAM 2K ref quad CAS | Toshiba | 
| 5117800 | HY5117800 | dram | 2M*8 DRAM 2K/32ms ref WPB | Hyundai | 
| 5117800 | HY5117800 | dram | 2M*8 DRAM 2K/32ms ref | Hyundai | 
| 5117800 | MSM5117800A | dram | 2M*8 DRAM FPM     (2k refresh) | Oki | 
| 5117800 | MSM5117800B | dram | 2M*8 DRAM FPM     (2k refresh) | Oki | 
| 5117805 | MSM5117805A | dram | 2M*8 DRAM EDO     (2k refresh) | Oki | 
| 5117805 | MSM5117805B | dram | 2M*8 DRAM FPM EDO (2k refresh) | Oki | 
| 5117805 | MSM51V17805A | dram | 2M*8 DRAM EDO  (3.3V, 2k refresh) | Oki | 
| 5118160 | HY5118160 | dram | 1M*16 DRAM 1K/16ms ref, dual CAS | Hyundai | 
| 5118160 | HY5118160 | dram | 1M*16 DRAM 1K/16ms ref, dual CAS, WPB | Hyundai | 
| 5118160 | MSM5118160A | dram | 1M*16 DRAM EDO    (1k refresh) | Oki | 
| 5118160 | MSM5118160B | dram | 1M*16 DRAM FPM    (1k refresh) | Oki | 
| 5118160 | MSM51V18160A | dram | 1M*16 DRAM FPM (3.3V, 1k refresh) | Oki | 
| 5118165 | MSM5118165A | dram | 1M*16 DRAM EDO    (1k refresh) | Oki | 
| 5118165 | MSM5118165B | dram | 1M*16 DRAM EDO    (1k refresh) | Oki | 
| 5118165 | MSM51V18165A | dram | 1M*16 DRAM EDO (3.3V, 1k refresh) | Oki | 
| 512 | ADG512 |  | LC2MOS Precision 5V/3V Quad* SPST* Switches, data | AD | 
| 512 | ADG512 | switch | quad SPST* analog switch NC | AD | 
| 512 | MAX512 | dac,spi | DAC, 8-bit 5V 3-channel with two buffered voltage outputs | Maxim | 
| 512 | ics512 |  | www.icst.com/pdf/ics512.pdf | ICS* | 
| 5128 | DPS512M8MKY | sram | Military/monolithic 512K*8 SRAM*, 20-45ns, SLCC, 52 Pins, .550" X .975" | Dense-Pac* | 
| 513 | ADG513 |  | LC2MOS Precision 5V/3V Quad* SPST* Switches, data | AD | 
| 513 | ADG513 | switch | quad SPST* analog switch NO/NC | AD | 
| 513 | MAX513 | dac,spi | DAC, 8-bit 3V 3-channel with two buffered voltage outputs | Maxim | 
| 513 | ics513 |  | www.icst.com/pdf/ics513.pdf | ICS* | 
| 5133 |  | eprom | 8k*8 NMOS* EPROM* | Seeq | 
| 5135 | M5135 | peripheral | Enhanced Super I/O controller with Plug & Play & KBC | ALi* | 
| 514 | MAX514 | dac,spi | DAC, 12-bit 4-channel multiplying | Maxim | 
| 514 | RGB514 | video | RGB Series Palette DAC, Data | IBM* | 
| 514 | ics514 |  | www.icst.com/pdf/ics514.pdf | ICS* | 
| 5140 | IH5140 | switch | Low Power Fast SPST* Normally Open CMOS* analog switch | Maxim* | 
| 5140 | TDA5140A | motor | Brushless DC motor drive circuit DIL18 | Philips | 
| 51400 | M5G1400P |  | EAROM, pinout | mitsubishi | 
| 5141 | IH5141 | switch | Low Power Fast Dual* SPST* Normally Open CMOS* analog switch | Maxim* | 
| 5141 | TDA5141 | motor | Brushless DC motor drive circuit DIL18 | Philips | 
| 514100 | 514100 | dram | 4M*1 DRAM | 
| 514100 | HM514100 | dram | 4M*1 DRAM | Hitachi | 
| 514100 | HYB514100BJ-70 | dram | DRAM $2.75 (1997) 4*1-70 SOJ | Siemens | 
| 514100 | MSM514100C | dram | 4M*1 DRAM | Oki | 
| 514171 | HB514171 | dram | 256k*16 DRAM | Siemens | 
| 514190 | HM514190AJ | dram | 256X18-70, SOJ, 1 CAS | Hitachi | 
| 5142 | IH5142 | switch | Low Power Fast SPDT CMOS* analog switch | Maxim* | 
| 5142 | TDA5142 | motor | Brushless DC motor drive circuit | Philips | 
| 5142 | TDF5142 | motor | Brushless DC motor drive circuit | Philips | 
| 514221 | MSM514221B | dram | 256K*4 Field Memory | Oki | 
| 514222 | MSM514222B | dram | 256K*4 Field Memory | Oki | 
| 514223 | MSM514223B | dram | 256K*4 Field Memory   (cascadable) | Oki | 
| 514252 | MSM514252A | dram | 256K*4 VRAM* FPM | Oki | 
| 514256 |  | dram | 256k*4 DRAM | Motorola | 
| 514256 | 514256 | dram | 256k*4 DRAM | 
| 514256 | HB514256 | dram | 256k*4 DRAM | Siemens | 
| 514256 | HM514256AP | dram | 256k*4 Fast Pagemode DRAM | Hitachi* | 
| 514256 | HY51C4256 | dram | 256k*4 Fast Pagemode DRAM | Hyundai* | 
| 514256 | HYB514256 | dram | 256k*4 Fast Pagemode DRAM | Siemens* | 
| 514256 | MCM514256AP | dram | 256k*4 Fast Pagemode DRAM | Motorola* | 
| 514256 | MSM514256 | dram | 256k*4 Fast Pagemode DRAM | OKI* | 
| 514256 | MSM514256C/CL | dram | 256K*4 DRAM FPM | Oki | 
| 514256 | TC514256 |  | dram, pinout | Toshiba | 
| 514256 | TC514256BP | dram | 256k*4 Fast Pagemode DRAM | Toshiba* | 
| 514260 | HM514260 | dram | 256k*16 DRAM dual CAS | Hitachi | 
| 514260 | HY514260B | video | Video RAM | Hyundai | 
| 514260 | MSM514260C/CSL | dram | 256K*16 DRAM FPM | Oki | 
| 514262 | MSM514262 | dram | 256K*4 VRAM* FPM | Oki | 
| 514265 | MSM514265B/BSL | dram | 256K*16 DRAM EDO | Oki | 
| 514265 | MSM514265C/CSL | dram | 256K*16 DRAM EDO | Oki | 
| 5143 |  | eprom | 16k*8 NMOS* EPROM* | Seeq | 
| 5143 | IH5143 | switch | Low Power Fast Dual* SPDT CMOS* analog switch | Maxim* | 
| 5143 | TDA5143 | motor | Brushless DC motor drive circuit | Philips | 
| 5143 | TDF5143 | motor | Brushless DC motor drive circuit | Philips | 
| 5144 | IH5144 | switch | Low Power Fast DPST* Normally Open CMOS* analog switch | Maxim* | 
| 5144 | TDA5144 | motor | Brushless DC motor drive circuit | Philips | 
| 51440 | TC51440 | dram | 1M*4 DRAM quad CAS | Toshiba | 
| 514400 | 514400 | dram | 1M*4 DRAM | 
| 514400 | HM514400 | dram | 1M*4 DRAM | Hitachi | 
| 514400 | MSM514400C/CL | dram | 1M*4 DRAM FPM | Oki | 
| 514400 | MSM51V4400/L/SL | dram | 1M*4 DRAM FPM (3.3V) | Oki | 
| 5145 | IH5145 | switch | Low Power Fast Dual* DPST* Normally Open CMOS* analog switch | Maxim* | 
| 5145 | TDA5145 | motor | Brushless DC motor control circuit DIL28 | Philips | 
| 514800 | HM514800 | dram | 512k*8 DRAM | Hitachi | 
| 514800 | MSM514800A/ASL | dram | 512K*8 DRAM FPM | Oki | 
| 514800 | TC514800AJ |  | 4M DRAM, pinout | Toshiba | 
| 514900 | MSM514900/SL | dram | 512K*9 DRAM FPM | Oki | 
| 514900 | TC514900AJ |  | 4M DRAM (512K X 9), pinout | Toshiba | 
| 515 | AD515A | amp | Monolithic Precision, Low Power FET-Input Electrometer Op Amp*, data | AD | 
| 515 | MAX515 | dac,spi | DAC, 10-bit single-channel multiplying | Maxim | 
| 5155 | OM5155 | telecom | Low-power synthesizer for cordless telephones | Philips | 
| 516100 |  | dram | 16M*1 DRAM | Motorola | 
| 516160 |  | dram | 1M*16 DRAM | Motorola | 
| 516180 |  | dram | 1M*18 DRAM | Motorola | 
| 516400 |  | dram | 4M*4 DRAM | Motorola | 
| 517 | AD517 | amp | Precision, Low Drift, data | AD | 
| 5170 | ADM5170 | driver | Octal*, RS-232/RS-423 Line Driver, data | AD | 
| 5170 | NE5170 | driver | Octal* line driver DIL28 | Philips | 
| 517400 |  | dram | 4M*4 DRAM | Motorola | 
| 517400 | MCM517400BT | dram | 4X4X2-60, TSOP, 300 MIL | Motorola | 
| 5180 | ADM5180 | receiver | Octal*, RS-232/RS-423 Line Receiver, data | AD | 
| 5180 | NE5180 | rcvr | Octal* differential line receiver DIL28 | Philips | 
| 51803 | 51C803 | mcu | MCU (=8051+) 256*8 RAM, 16K*8 ROM, 64b XRAM, ROM only C804, 68-pin | Siemens | 
| 51804 | 51C804 | mcu | MCU (=8051+) 256*8 RAM, 64Kx*8 ROM, 64b XRAM, SIECO+3PhSineVc, 10bit 10chan ADC, ALU, PWM, 100-pin | Siemens | 
| 5181 | NE5181 | rcvr | Octal* differential line receiver DIL28 | Philips | 
| 518122 | MSM518122 | dram | 128K*8 VRAM*   (extended feature) | Oki | 
| 518160 |  | dram | 1M*16 DRAM | Motorola | 
| 518160 | MCM518160 | dram | 1M*16 DRAM 1K ref dual CAS | Motorola | 
| 518180 |  | dram | 1M*18 DRAM | Motorola | 
| 518180 | MCM518180 | dram | 1M*18 DRAM 1K ref dual CAS | Motorola | 
| 518221 | MSM518221 | dram | 256K*8 Field Memory | Oki | 
| 518222 | MSM518222 | dram | 256K*8 Field Memory  (cascadable) | Oki | 
| 5191 | SAA5191 | tv | Teletext video processor | Philips* | 
| 5191 | SAA5191 | tv | Teletext video processor, DIL28 | Philips | 
| 51977 | M51977P-16P4 |  | Switching Regulator Control, pinout | Mitsubishi | 
| 51977 | M51977P-20P2N |  | Switching Regulator Control, pinout | Mitsubishi | 
| 51994 | M51994AP |  | dual SMPS cotroller, pinout | Mitsubishi |