204A-GC-BC-3LP Displaytech Display (Other) In Stock
The 204A-GC-BC-3LP is a Displaytech 20-character × 4-line transflective FSTN LCD module with negative mode white-on-black display and a built-in LED backlight. It uses a standard parallel interface compatible with Hitachi HD44780 controllers and operates from a 5 V supply. Available in stock worldwide with competitive pricing and fast shipping.
- Manufacturer
- Displaytech
- Package
- Other
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- 204A-GC-BC-3LP Datasheet PDF
- Category
- Display
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 20×4 character format provides 80 characters of display area for multi-line status readouts and menu-driven user interfaces
- Transflective FSTN negative mode delivers high-contrast white characters on black background, readable in both indoor and outdoor ambient lighting
- HD44780-compatible 4-bit/8-bit parallel interface ensures plug-in compatibility with Arduino, STM32, and virtually any embedded MCU platform
- Integrated LED backlight module enables clear readability in dark or dimly lit environments without additional external lighting
Applications
The 204A-GC-BC-3LP is used in industrial equipment panels, laboratory instruments, and HVAC control units where a high-contrast 20×4 text display is needed to show multi-line status, setpoints, and alarm messages. Its transflective design performs well in factory floor environments with varying ambient light from fluorescent or daylight sources. The HD44780-compatible interface lets engineers quickly prototype with common microcontroller development boards before transitioning to production layouts.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What display format and contrast mode does the 204A-GC-BC-3LP use for industrial panel applications?
The 204A-GC-BC-3LP provides 20 columns × 4 rows of character display in FSTN negative mode, producing white characters on a black background with high contrast ratios typically exceeding 10:1. This makes the module particularly suited to factory floor panels and test equipment where operators must read data from multiple angles and under mixed lighting conditions.
Which microcontroller interface does the 204A-GC-BC-3LP support, and what voltage levels are required?
The 204A-GC-BC-3LP uses a parallel interface based on the Hitachi HD44780 standard, supporting both 4-bit and 8-bit data bus modes. It operates from a 5 V supply with logic-level inputs compatible with standard 5 V TTL and CMOS signals. For 3.3 V MCU designs, a simple level shifter or resistor voltage divider on the data lines brings the signals into the 5 V LCD logic range.
How does the transflective panel of the 204A-GC-BC-3LP perform compared to a purely transmissive LCD in outdoor kiosk designs?
A transflective panel like the 204A-GC-BC-3LP reflects a portion of ambient light to supplement or replace backlight illumination, maintaining legibility even in bright outdoor settings where a transmissive panel would wash out entirely. In direct sunlight at 50,000 lux, a transflective LCD can achieve contrast ratios above 5:1 without increasing backlight power, whereas a transmissive module may require 500 mA or more of LED current to remain readable.
What are the mechanical dimensions and mounting options for the 204A-GC-BC-3LP in a panel-mount enclosure?
The 204A-GC-BC-3LP follows the standard 20×4 LCD form factor with a PCB size of approximately 98 mm × 60 mm and a viewing area of 76 mm × 25 mm. The module includes 4 mounting holes at 95 mm × 55 mm spacing for M3 standoffs, allowing direct panel mounting in standard 1/4 DIN or custom enclosures with a rectangular cutout sized to the viewing window.
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