| Manufacturer | Part # | Datasheet | Description |

Copal Electronics
|
DP7140 |
144Kb/11P |
Single Channel 256 Tap |

ON Semiconductor
|
CAT5140 |
172Kb/10P |
Single Channel 256 Tap Digital Potentiometer (POT) July, 2013 ??Rev. 4 |

Winbond
|
WMS7202 |
282Kb/30P |
256-TAP DUAL-CHANNEL NON-VOLATILE DIGITAL |

ON Semiconductor
|
CAT5140 |
148Kb/11P |
Single Channel 256 Tap DPP with Integrated EEPROM and I2C Control May, 2009 ??Rev. 0 |

Intersil Corporation
|
X9261 |
393Kb/21P |
Single Supply/Low Power/256-Tap/SPI Bus |
| X9251 |
354Kb/22P |
Single Supply/Low Power/256-Tap/SPI Bus |
| X9271 |
373Kb/22P |
Single Supply/Low Power/256-Tap/SPI Bus |

Renesas Technology Corp
|
X9261 |
442Kb/20P |
Single Supply/Low Power/256-Tap/SPI Bus October 12, 2006 |

Winbond
|
WMS7204 |
320Kb/32P |
256-TAP QUAD-CHANNEL NON-VOLATILE DIGITAL POTENTIOMETER |

Intersil Corporation
|
X9259 |
364Kb/21P |
Single Supply/Low Power/256-Tap/2-Wire bus |
| X9269 |
367Kb/24P |
Single Supply/Low Power/256-Tap/2-Wire Bus |
| X9279 |
364Kb/22P |
Single Supply/Low Power/256-Tap/2-Wire Bus |

Renesas Technology Corp
|
X9279 |
403Kb/18P |
Single Supply/Low Power/256-Tap/2-Wire Bus September 23, 2009 |

Winbond
|
WMS7201 |
318Kb/29P |
256-TAP NON-VOLATILE DIGITAL POTENTIOMETER |

OPLINK Communications I...
|
ITMSD02050011 |
260Kb/2P |
Single Channel Integrated Tap Monitors |
| ITMS-S0019 |
127Kb/2P |
Single Channel Integrated Tap Monitors |

Maxim Integrated Produc...
|
MAX5394 |
2Mb/15P |
Single, 256-Tap Volatile, SPI, Low-Voltage Linear Taper Digital Potentiometer Rev 1; 9/12 |

Renesas Technology Corp
|
X9271 |
791Kb/19P |
Single Supply/Low Power/256-Tap/SPI Bus Single, Digitally Controlled (XDCP?? Potentiometer |

Maxim Integrated Produc...
|
MAX5395 |
2Mb/17P |
Single, 256-Tap Volatile, I2C, Low-Voltage Linear Taper Digital Potentiometer Rev 0; 7/12 |
| MAX5417LETA-T |
296Kb/14P |
256-Tap, Nonvolatile, I2C-Interface, Digital Potentiometers Rev 4; 4/10 |