Below is a compiled based on the standard identifiers provided in your string. This report interprets the available data to define the component's characteristics.
Force the data bus to 0x30 and toggle the pin; wait 4.1 milliseconds.
The KL SN102 94V-0 marking represents an enduring mystery in the world of salvage electronics—a component identifier that is not a true part number but rather a combination of an internal board ID and a safety certification. While no single official datasheet PDF exists for this marking, the collective discoveries of the electronics community have provided a clear path forward: identify your display type (character vs. graphical), locate the actual controller IC, download that controller’s datasheet, and refer to the pinout and usage notes documented in this guide.
Capable of displaying up to four lines of text or custom graphics.
Yes, the KL SN102 appears in both formats. You'll need to modify your initialization routine. Typically, the commands for setting the display to 4-bit mode, the number of lines, and the font are different for 20x4 vs 16x2 displays.
“94V-0” is a UL safety certification indicating the PCB material is flame-retardant and will self-extinguish within 10 seconds after the removal of a flame source. It is the highest classification in the UL94 V-rating system.
| Part Family | Description | Pins | Datasheet Availability | |-------------|-------------|------|------------------------| | | 48-pin ARM Cortex-M3 MCU | 48 | Official PDF | | ATMEGA328P-AU | 32-pin, but 48-pin variants exist | 48 | Microchip | | 74HC595 (multiple packages) | Shift register, some 48-pin SSOP | 48 | Texas Instruments | | LAN8720A | 48-pin Ethernet PHY | 48 | Microchip | | MAX31855 (not 48-pin) | Thermocouple IC – note mismatch | N/A | Maxim Integrated |
Since "KL SN102" is a legacy part, tracking down an exact replacement is challenging. Check surplus electronics suppliers (eBay, AliExpress, specialized forums) as your best bet. If the original module isn't critical, any will work as an excellent substitute in most projects.
: This label appears on various specific display models, including:
What is the of the device this chip is installed in?
Compatible with standard HD44780 or equivalent display controllers
Because this hardware is often bundled under proprietary system documentation, finding an unbundled PDF requires a strategic approach:
