Renesas Electronics Corporation
Search

3850A

Obsolete

8-bit Microcontrollers with 16-32KB Flash, 0.5-1KB RAM

Overview

The 3850A Group is supported only for customers who have already adopted these products.

Documentation

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.

Explore ECAD Models
Diagram of ECAD Models

Product Options

Applied Filters:

Support

Support Communities

Support Communities

Get quick technical support online from Renesas Engineering Community technical staff.
Get Support
Browse FAQs

FAQs

Browse our knowledge base of common questions and answers.
Browse FAQs
Submit a Ticket

Submit a Ticket

Need to ask a technical question or share confidential information?
Submit Ticket

FAQs

  1. (3850A) In the QzROM, can additional programs be written to the free area in ROM?

    As long as protect is not enabled, it is possible to write to the ROM. However, be careful not to "overwrite" bits that have already been written to. (#106722)

    Jun 6, 2007
  2. (3850A) How do you enable protection in the QzROM version?

    For QzROM programming using a programmer, set protection using the programmer. For the setting method, please refer to the programmer manual. For products programmed and shipped by Renesas, set protection in the ROM options in the mask file converter (MM). Please note enable/disable of the ROM code protect ...

    Jun 6, 2007
  3. (3850A) What values of external capacitance can be added to the ports?

    (1) CMOS3 State I/O Ports When adding external capacitance, select 100pF or less. (2) Input-only Ports There are no special restrictions on these ports. Select the capacitance according to the characteristics of the externally connected circuit. (#104751)

    Oct 26, 2006
View All Results from FAQs (120)