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        Semiconductor parts containing 991 
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Texas Instruments 
| Part | Description |  
| SN74ALS991N | Latch |  
| SN74ALS991N3 | Latch |  
| TMS3469910000 | GRAPHICS SYSTEM PROCESSOR |  
| TMS9914AFNL | Micro Peripheral: Miscellaneous |  
| TMS9914AJDL | Micro Peripheral: Miscellaneous |  
| TMS9914AJDS | Micro Peripheral: Miscellaneous |  
| TMS9914ANL | Micro Peripheral: Miscellaneous |  
| TMS9914JDL | Micro Peripheral: Miscellaneous |  
| TMS9914JL | Micro Peripheral: Miscellaneous |  
| TMS9914NL | Micro Peripheral: Miscellaneous |  
| TMS9916JD | Memory Controller |  
| TMS9916N | Memory Controller |  
| TMS9918AJDH | Video Controller |  
| TMS9918AJL | Video Controller |  
| TMS9918ANL | Video Controller |  
| TMX9914AFNL | Micro Peripheral: Miscellaneous |  
| TPS79912 | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR LDO |  
| TPS79912DDCR |  200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS79912DDCRG4 | 200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS79912DDCT | 200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS79912DDCTG4 | 200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS79912DRVR | 200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS79912DRVRG4 | 200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS79912DRVT | 200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS79912DRVTG4 |  200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS79912YZUR | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR LDO |  
| TPS79912YZUT | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR LDO |  
| TPS79913DDCR | 200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS79913DDCRG4 | 200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS79913DDCT | 200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS79913DDCTG4 |  200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS79913YZUR |  200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS79913YZUT | 200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS79915 | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR, Low Dropout Linear Regulator |  
| TPS79915DDCR | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR, Low Dropout Linear Regulator |  
| TPS79915DDCRG4 | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR, Low Dropout Linear Regulator |  
| TPS79915DDCT | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR, Low Dropout Linear Regulator |  
| TPS79915DDCTG4 | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR, Low Dropout Linear Regulator |  
| TPS79915YZUR | 200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS79915YZUT | 200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS79916 | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR, Low Dropout Linear Regulator |  
| TPS799185DDCRG4 |  200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS799185DDCT |  200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS79918 | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR, Low Dropout Linear Regulator |  
| TPS79918DDCR | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR, Low Dropout Linear Regulator |  
| TPS79918DDCRG4 | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR, Low Dropout Linear Regulator |  
| TPS79918DDCT | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR, Low Dropout Linear Regulator |  
| TPS79918DDCTG4 | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR, Low Dropout Linear Regulator |  
| TPS79918DRVR | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR LDO |  
| TPS79918DRVRG4 | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR LDO |  
| TPS79918DRVT | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR LDO |  
| TPS79918DRVTG4 | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR LDO |  
| TPS79918YZUR | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR LDO |  
| TPS79918YZUT | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR LDO |  
| TPS79919 | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR LDO |  
| TPS799195DRVR |  200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS799195DRVRG4 | 200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS799195DRVT |  200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS799195DRVTG4 | 200mA, Low Quiescent Current, Ultra-Low Noise, High PSRR Low Dropout Linear Regulator |  
| TPS79919YZUR | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR LDO |  
| TPS79919YZUT | 200mA Low Quiescent Current, Ultra-Low Noise, High PSRR LDO |  
  
Torex Semiconductor 
| Part | Description |  
| XC6216B991ML |  Voltage Regulators with Stand-by Function - Input Voltage: 28V |  
| XC6216B991MR |  Voltage Regulators with Stand-by Function - Input Voltage: 28V |  
| XC6216C991ML | Voltage Regulators with Stand-by Function - Input Voltage: 28V |  
| XC6216C991MR | Voltage Regulators with Stand-by Function - Input Voltage: 28V |  
| XC6216C991PL |  Voltage Regulators with Stand-by Function - Input Voltage: 28V |  
| XC6216C991PR |  Voltage Regulators with Stand-by Function - Input Voltage: 28V |  
| XC6216D991ML |  Voltage Regulators with Stand-by Function - Input Voltage: 28V |  
| XC6216D991PL | Voltage Regulators with Stand-by Function - Input Voltage: 28V |  
| XC6216D991PR |  Voltage Regulators with Stand-by Function - Input Voltage: 28V |  
  
Toshiba 
| Part | Description |  
| 2SK2991_06 |  Silicon N Channel MOS Type DC−DC Converter Relay Drive and Motor Drive Applications |  
| 2SK2991_09 | DC−DC Converter Relay Drive and Motor Drive Applications |  
| 2SK2991 | Silicon N-channel MOS type field effect transistor for high speed, high voltage switching, relay drive, DC-DC converter, motor drive applications |  
| TMP47C991E | ROM 4096 x 8-bit, RAM 256 x 4-bit, CMOS 4-bit microcontroller |  
| TMP47C991G | ROM 4096 x 8-bit, RAM 256 x 4-bit, CMOS 4-bit microcontroller |  
  
TriQuint Semiconductor 
| Part | Description |  
| 855991 | 465 MHz SAW Filter |  
  
VISAY 
| Part | Description |  
| ORNA4991AT1 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991AT3 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991AT5 | Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991ATF |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991ATS | Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991BT0 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991BT1 | Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991BT3 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991BT5 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991CT0 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991CT1 | Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991CT3 | Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991CT5 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991CTF |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991CTS | Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991DT0 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991DT1 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991DT3 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991DTF |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991DTS | Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991FT1 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991FT3 | Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991FTS |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991QT0 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991QT1 | Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991QT5 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991ZT1 | Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991ZT3 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991ZT5 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNA4991ZTF |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991AT1 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991AT3 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991ATF |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991ATS |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991BT0 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991BT1 | Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991BT3 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991BT5 | Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991BTF |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991BTS |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991CT0 | Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991CT1 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991CT3 | Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991CT5 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991CTF | Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991CTS | Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991DT0 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991DT3 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991DTF | Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991DTS |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991FT1 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991FT5 | Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991FTS | Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991QT0 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991QT1 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991QT3 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991QT5 | Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991ZT0 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991ZT3 |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991ZT5 | Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| ORNTA4991ZTF |  Molded, 50 Mil Pitch, Dual-In-Line Resistor Network |  
| RLA991 |  Ceramic Disc Capacitors, Class 1 |  
| RLC991 |  Ceramic Disc Capacitors, Class 1 |  
| RLK991 | Ceramic Disc Capacitors, Class 1 |  
| RLP991 |  Ceramic Disc Capacitors, Class 1 |  
| RLU991 | Ceramic Disc Capacitors, Class 1 |  
| RLV991 |  Ceramic Disc Capacitors, Class 1 |  
| SI6991DQ-T1 |  Dual P-Channel 30-V (D-S) MOSFET |  
| SI6991DQT-1 |  Dual P-Channel 30-V (D-S) MOSFET |  
| SI7991DP | Dual P-Channel 30-V (D-S) MOSFET |  
| SI7991DP-T1 |  Dual P-Channel 30-V (D-S) MOSFET |  
| SI9910_05 | Adaptive Power MOSFET Driver |  
| SI9910 | Adaptive Power MOSFET Driver1 |  
| SI9910AK | Driver |  
| Si9910DJ | Adaptive Power MOSFET Driver1 |  
| SI9910DJ-E3 |  Adaptive Power MOSFET Driver |  
| Si9910DJ-T1 | Adaptive Power MOSFET Driver1 |  
| Si9910DY | Adaptive Power MOSFET Driver1 |  
| Si9910DY-T1 | Adaptive Power MOSFET Driver1 |  
| SI9910DY-T1-E3 |  Adaptive Power MOSFET Driver |  
| SI9911DJ | Driver |  
| SI9911DY | Driver |  
| SI9912 | Half-Bridge MOSFET Driver for Switching Power Supplies |  
| SI9912DY | Half-Bridge MOSFET Driver for Switching Power Supplies |  
| SI9912DY-T1 | Half-Bridge MOSFET Driver for Switching Power Supplies |  
| SI9912DY-T1-E3 | Half-Bridge MOSFET Driver for Switching Power Supplies |  
| SI9913 | Dual MOSFET Bootstrapped Driver with Break-Before-Make |  
| SI9914DJ | Driver |  
| SI9914DY | Driver |  
  
VITES 
| Part | Description |  
| VSC7991CD | SONET/SDH 10.7Gb/s electroabsorption modulator/laser diode driver |  
| VSC7991X | SONET/SDH 10.7Gb/s electroabsorption modulator/laser diode driver |  
  
Winbond Electronics 
 
ZETTLER Electronics 
 
ZILOG 
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