Graphic LCD Display Module 104990010 - Equivalent & Substitute Parts

Part Overview

The Seeed Technology Co., Ltd model 104990010 is a Graphic LCD Display Module featuring a 128 x 64 pixel STN (Super-Twisted Nematic) transflective display with parallel 8-bit interface and LED yellow/green backlight. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and production continuity. The module is RoHS compliant with MSL 1 rating, indicating unlimited moisture sensitivity protection.

Substiute Parts

104990010

Seeed Technology Co., LtdIn Stock: 809104990010 Datasheet

Current PartRFQ

LCM-H12864GSF/H-Y

Lumex Opto/Components Inc.In Stock: 971LCM-H12864GSF/H-Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 104990010 is based on strict alignment of the following critical parameters:

Core Compatibility Criteria:

• Display resolution: 128 x 64 pixels (mandatory match)
• Display technology: STN - Super-Twisted Nematic (mandatory match)
• Display mode: Transflective (mandatory match)
• Interface type: Parallel, 8-Bit (mandatory match)
• Backlight configuration: LED - Yellow/Green (mandatory match)

Allowable Variations:

• Viewing area dimensions may vary within manufacturing tolerances
• Dot size and dot pitch may vary within manufacturing tolerances
• Graphics color and background color may differ while maintaining functional display capability
• Product status may differ (active vs. obsolete)
• Manufacturer may differ

The substitute part LCM-H12864GSF/H-Y from Lumex Opto/Components Inc. satisfies all core compatibility criteria while maintaining functional equivalence for parallel 8-bit interface applications.

Parameter Comparison

Engineering Selection Recommendations

The LCM-H12864GSF/H-Y from Lumex Opto/Components Inc. is a direct functional substitute for the obsolete 104990010. Selection of this substitute is supported by the following engineering factors:

Compliance Alignment: Both components maintain EAR99 export classification and equivalent RoHS compliance status (RoHS vs. ROHS3), ensuring regulatory continuity in design and manufacturing.

Product Status Advantage: The substitute part carries active product status, providing assured supply chain availability and manufacturing support, contrasting with the obsolete status of the original component.

Interface Compatibility: Identical parallel 8-bit interface specification ensures direct compatibility with existing controller circuits and firmware without modification.

Display Technology Equivalence: Matching STN transflective display technology with 128 x 64 resolution and LED yellow/green backlight maintains functional performance characteristics for the intended application.

Physical Accommodation: Increased viewing area dimensions (60.00mm W x 32.50mm H versus 55.00mm W x 30.60mm H) and slightly larger dot pitch (0.43mm versus 0.41mm) require mechanical layout verification but do not affect electrical compatibility.

Moisture Protection: Both components maintain MSL 1 rating, confirming equivalent environmental protection during storage and handling.

Frequently Asked Questions (FAQ)

Q: Can the LCM-H12864GSF/H-Y directly replace the 104990010 without firmware changes?

A: Yes. Both components implement identical parallel 8-bit interface specifications and 128 x 64 pixel resolution. No firmware modification is required for interface compatibility. Physical mounting and mechanical clearance must be verified due to viewing area dimension differences.

Q: What is the significance of the graphics color difference (Blue vs. Gray)?

A: Graphics color represents the displayed character or graphic appearance. The blue graphics on the original component versus gray graphics on the substitute will produce visually different display output. This variation is acceptable only if the application does not depend on specific color appearance for user interface functionality or branding requirements.

Q: Are there mechanical compatibility concerns?

A: The substitute part has a larger viewing area (60.00mm W x 32.50mm H) compared to the original (55.00mm W x 30.60mm H). Mechanical layout verification is required to confirm adequate clearance in the enclosure or mounting structure. Dot pitch variation (0.43mm versus 0.41mm) is within typical manufacturing tolerances and does not affect electrical operation.

Q: Why is the substitute part listed as Active while the original is Obsolete?

A: Product status reflects manufacturer support and supply availability. The active status of the substitute ensures continued manufacturing, inventory availability, and technical support, addressing the supply discontinuation of the obsolete original component.

Q: Are the RoHS compliance levels equivalent?

A: Both components meet RoHS requirements. The original is RoHS Compliant and the substitute is ROHS3 Compliant. ROHS3 represents an updated compliance standard and is fully compatible with RoHS requirements, ensuring equivalent environmental and regulatory standing.

Q: What is the REACH status significance?

A: The substitute part is listed as REACH Unaffected, indicating compliance with REACH chemical substance regulations. This supports use in applications subject to REACH requirements without additional material documentation.

Q: Can both components be used interchangeably in production?

A: Electrical and interface compatibility is confirmed. Physical interchangeability requires mechanical layout verification due to viewing area and dot pitch variations. Once mechanical compatibility is confirmed, both components can be used interchangeably from an electrical and functional standpoint.