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ROHM RCM2038R Data Sheet

Summary

This guide details the RCM2038R, a compact 16-character by 4-line reflective LCD module featuring a built-in controller and LSI driver. Designed for embedded applications such as PCs and telecommunications equipment, this low-power display connects easily via 4-bit or 8-bit interfaces. The manual provides comprehensive technical resources, including electrical/optical specifications, detailed timing charts for writing and reading data, step-by-step initialization instructions (like the reset function), and full pin assignments necessary for reliable system design and integration by electronics engineers.

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Liquid crystal displays 查询RCM2038R供应商

16 characters4 lines reflective character module RCM2038R The RCM2038R is a reflective TN type liquid crystal module with a built-in controller /driver LSI and a display capacity of 16 characters  4 lines. Applications Personal computers, word processors, facsimiles, telephones, etc. Features

1) Wide viewing angle and high contrast. 6) Abundant instruction set including clear display, cur- 2) 57 dot character matrix with cursor. sor on /off, and character blinking. 3) Interfaces with 4-bit or 8-bit MPUs. 7) Compact and light weight for easy assembly to the 4) Displays up to 181 characters and special symbols. host instrument. 5) Custom character patterns are displayed with the 8) Operable on single 5 V power supply. character RAM. 9) Low power consumption.

External dimensions (Units: mm)

Page Summary Contents For ROHM RCM2038R Data Sheet

Page 1 Liquid crystal displays 查询RCM2038R供应商 16 characters4 lines reflective character module RCM2038R The RCM2038R is a reflective TN type liquid crystal module with a built-in controller /driver LSI and a...
Page 2 Liquid crystal displays RCM2038R Block diagram Pin assignments Power supply example Absolute maximum ratings (Ta = 25C)
Page 3 Liquid crystal displays RCM2038R Electrical characteristics (VDD = 5.0 V ± 0.25 V, Ta = 25C) Optical characteristics (Ta = 25C, φ = 0)
Page 4 Liquid crystal displays RCM2038R Timing chart (1) Writing (2) Reading
Page 5 Liquid crystal displays RCM2038R Pin functions
Page 6 Liquid crystal displays RCM2038R Instructions
Page 7 Liquid crystal displays RCM2038R Character code and corresponding character pattern
Page 8 Liquid crystal displays RCM2038R Reset function When you turn the power supply on using the internal re- set circuit, the module automatically returns to its initial (reset) settings. At the initial s...

Manual Details

Brand ROHM
Pages 8
File Size 148.59 KB
Published July 12, 2026
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Frequently Asked Questions

Does this module support a cursor and blinking?

Yes, it features a cursor and supports character blinking control.

What interfaces can I use with RCM2038R?

It is compatible with 4-bit or 8-bit MPUs.

How does the module automatically initialize upon power up?

The internal reset circuit clears the display, sets function mode, controls cursor/blinking status, and enters selection RAM.

What types of applications can use this LCD display?

It is suitable for personal computers, word processors, facsimiles, telephones, and similar host instruments.