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UM6551 The UM6551 is a Serial I/O Controller from UMC, operating at a single +5V power supply. It features an on-chip baud rate generator with 15 programmable rates.
Mfr Part #:

UM6551

Available from 1 distributors
Mfr Name: UMC
UMC
The UM6551 is a Serial I/O Controller from UMC, operating at a single +5V power supply. It features an on-chip baud rate generator with 15 programmable rates.
✓ Total Stock: 8 pcs
$ Price Range: $0.75

UM6551 Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Spartce Electronics. ✓
Non-Authorised Inventory information
8 pcs
On Request
8 pcs On Request 1 On Request On Request On Request On Request On Request
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UM6551 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
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UM6551 Description

Short technical summary and product information.

The UMC UM6551 is an Asynchronous Communication Interface Adapter designed for serial data communication. It operates from a single +5 volt power supply, simplifying power management in embedded systems.

 

A key feature is its on-chip baud rate generator, which offers 15 programmable baud rates derived from a standard 1.8432 MHz external crystal, supporting speeds from 50 to 19,200 baud. This flexibility allows for easy integration into various communication protocols.

 

The UM6551 also includes a programmable interrupt and status register to streamline software design and reduce processing overhead. Additional features include a serial echo mode and false start bit detection, enhancing data integrity. The component is housed in a PDIP28 package, suitable for through-hole mounting.

 

This IC is designed for applications requiring reliable serial communication, such as interfacing with peripherals, modems, or other serial devices. Its robust feature set and straightforward operation make it a versatile choice for embedded system designers.

UM6551 Quick Information

Product Type: Serial I/O Controller
Canonical Name: UM6551 Serial I/O Controller
Subcategory: Serial I/O Controller

UM6551 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

UM6551 Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

UM6551 Features

  • Single +5 volt power supply operation.
  • On-chip baud rate generator included.
  • 15 programmable baud rates supported.
  • Supports speeds up to 19,200 baud.
  • PDIP28 package for through-hole mounting.

UM6551 Applications

  • Ideal for serial data communication.
  • Suitable for embedded system interfaces.
  • Used for peripheral device communication.
  • Facilitates modem and serial device integration.

UM6551 FAQs

3 frequently asked questions generated from this part’s specifications.
What is the operating voltage for the UM6551?

The UM6551 operates from a single +5 volt power supply.

What baud rates does the UM6551 support?

The UM6551 supports 15 programmable baud rates derived from a standard 1.8432 MHz external crystal, ranging from 50 to 19,200 baud.

What package type is the UM6551 available in?

The UM6551 is available in a PDIP28 package.

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