| Manufacturer | Part # | Datasheet | Description |

UMC Corporation
|
UM82C451 |
1Mb/25P |
PARALLEL/ASYNCHRONOUS COMMUNLCATION |

National Semiconductor ...
|
PC16553 |
1Mb/37P |
Dual Universal Asynchronous Receiver/Transmitter with FIFOs plus High Performance Parallel Interface |

Intersil Corporation
|
82C50A |
282Kb/25P |
CMOS Asynchronous |

GSI Technology
|
GS73024AB |
613Kb/12P |
Asynchronous SRAM |

Renesas Technology Corp
|
82C50A |
985Kb/25P |
CMOS Asynchronous |

IMP, Inc
|
IMP16C552 |
783Kb/34P |
Dual Universal Asynchronous Receiver/Transmitter (UART) with 16-BYTE FIFO & Parallel Printer Port |

Intel Corporation
|
CD1284 |
2Mb/176P |
IEEE 1284-Compatible Parallel Interface Controller with Two High-Speed Asynchronous Serial Ports |

LANSDALE Semiconductor ...
|
ML145428 |
1Mb/14P |
Asynchronous-to-Synchronous and Synchronous-to-Asynchronous Converter |

Texas Instruments
|
TL16C450 |
350Kb/25P |
ASYNCHRONOUS COMMUNICATIONS ELEMENT |
| TL16C554 |
478Kb/33P |
ASYNCHRONOUS COMMUNICATIONS ELEMENT |

List of Unclassifed Man...
|
GS71116ATP |
398Kb/16P |
1Mb Asynchronous SRAM |

Richtek Technology Corp...
|
RT4533 |
142Kb/11P |
Asynchronous Boost Converter |

Texas Instruments
|
TL16C451 |
323Kb/24P |
ASYNCHRONOUS COMMUNICATIONS ELEMENTS |

Cypress Semiconductor
|
CY7C331 |
437Kb/18P |
Asynchronous Registered EPLD |

Texas Instruments
|
TL16C451 |
309Kb/23P |
ASYNCHRONOUS COMMUNICATIONS ELEMENTS |
| TL16C550A |
434Kb/31P |
ASYNCHRONOUS COMMUNICATIONS ELEMENT |
| TL16C550B |
499Kb/35P |
ASYNCHRONOUS COMMUNICATIONS ELEMENT |

Integrated Device Techn...
|
IDT7203 |
143Kb/14P |
CMOS ASYNCHRONOUS FIFO |

Analog Devices
|
AN-291 |
313Kb/2P |
Asynchronous clock Interfacing |

Renesas Technology Corp
|
IDT7203 |
276Kb/15P |
CMOS ASYNCHRONOUS FIFO NOVEMBER 2017 |