LCD ST7565 GRAPH 128X64 RGB BKLT (Adafruit 250) Equivalent & Substitute Parts

Part Overview

The Adafruit 250 is a graphic LCD display module featuring a 128 x 64 pixel resolution with RGB LED backlight. This FFSTN (Double Film Super-Twisted Nematic) transmissive display operates via I2C interface and is classified as obsolete. Due to its discontinued status, identifying functionally equivalent substitute components is essential for ongoing system support, redesigns, and new production runs requiring comparable display capabilities.

Substiute Parts

250

Adafruit Industries LLCIn Stock: 1129250 Datasheet

Current PartRFQ

EA EDIP128B-6LW

Display VisionsIn Stock: 825EA EDIP128B-6LW Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Adafruit 250 is determined by the following critical parameters:

• Resolution Match: 128 x 64 pixel configuration is mandatory for direct functional equivalence
• Display Technology: STN or FFSTN transmissive technology acceptable; both support monochrome or color graphics
• Interface Compatibility: I2C primary interface required; additional interfaces (RS-232, SPI) are supplementary
• Dot Pitch Tolerance: 0.48mm W x 0.52mm H specification allows mechanical interchangeability
• Viewing Area: Dimensions within 64.60mm to 65.50mm width and 35.00mm to 38.00mm height maintain form factor compatibility
• Backlight Configuration: LED backlight type acceptable regardless of color variant (RGB, White, or Blue)
• Moisture Sensitivity: MSL 1 rating ensures equivalent environmental handling requirements

The EA EDIP128B-6LW qualifies as a substitute based on matching resolution, transmissive display mode, I2C interface support, compatible dot pitch, and equivalent MSL rating.

Parameter Comparison

Engineering Selection Recommendations

The EA EDIP128B-6LW (Display Visions) is a qualified substitute for the obsolete Adafruit 250 based on the following engineering criteria:

• Resolution Equivalence: Both modules provide 128 x 64 pixel resolution, ensuring software compatibility at the display buffer level
• Interface Compatibility: I2C interface is supported on the substitute, maintaining communication protocol compatibility
• Mechanical Interchangeability: Dot pitch and viewing area dimensions are within acceptable tolerance ranges for form factor compatibility
• Environmental Compliance: Both components carry MSL 1 rating, indicating equivalent moisture handling and storage requirements
• Production Status: The EA EDIP128B-6LW is actively manufactured, ensuring long-term availability and supply chain stability
• Regulatory Compliance: The substitute meets ROHS3 compliance, satisfying modern regulatory requirements

Design Consideration: The substitute features white graphics on blue background with white LED backlight, whereas the original provides black graphics on RGB backlight. This color difference requires verification of display contrast and visibility requirements in the target application. The substitute also supports additional interfaces (RS-232, SPI) beyond the I2C requirement, providing expanded communication options.

Frequently Asked Questions (FAQ)

Q: Can the EA EDIP128B-6LW directly replace the Adafruit 250 without firmware modifications?

A: The I2C interface is supported on both modules with matching 128 x 64 resolution. However, firmware verification is required to confirm command set compatibility, as different manufacturers may implement protocol variations. The substitute's additional interface options (RS-232, SPI) do not affect I2C operation.

Q: What is the impact of the different backlight colors (RGB vs. White)?

A: The original Adafruit 250 provides RGB backlight capability, while the EA EDIP128B-6LW offers white LED backlight. This affects display appearance and color mixing capability. Applications requiring specific color mixing or RGB control must evaluate whether white backlight meets functional requirements.

Q: Are the viewing area differences significant?

A: The Adafruit 250 viewing area is 65.50mm W x 38.00mm H, while the EA EDIP128B-6LW is 64.60mm W x 35.00mm H. The 2mm width and 3mm height differences fall within typical mechanical tolerance ranges for display module mounting. Verify that mechanical enclosure designs accommodate the smaller viewing area.

Q: Does the substitute's additional interface support (RS-232, SPI) create compatibility issues?

A: No. The presence of additional interfaces does not affect I2C operation. The substitute can be configured to operate exclusively via I2C, matching the original module's communication method.

Q: What is the significance of the RoHS3 compliance on the substitute?

A: RoHS3 compliance indicates the substitute meets current European Union Restriction of Hazardous Substances regulations. This is advantageous for new designs and ensures compliance with modern procurement standards. The original Adafruit 250 RoHS status is not specified in available documentation.

Q: Are there any packaging or inventory considerations?

A: The Adafruit 250 is listed as obsolete with 1115 units in stock. The EA EDIP128B-6LW is actively produced with 763 units currently available. For new production runs, the active status of the substitute ensures ongoing supply availability.