0.8-inch Four-Digit Digital Tube Display Module – Green
$4.401pcs
The TM1650 green version is a dedicated IC integrating LED driving and keyboard scanning with an eco‑friendly green package. It supports 2.8V‑5.5V input, 8‑level brightness, 150mA drive, and strong anti‑interference, ideal for home appliances and meters in a compact SOP16.
| Dimensions | 81.5 × 26.0 mm |
|---|---|
| Brand |
easyelecmodule |
2562 in stock
Product Introduction
TM1650 is a widely used LED driver controller commonly applied in various LED display systems. It supports the driving and control of components such as seven-segment displays and dot matrix screens. Its key features include low power consumption, high-precision control, and an easy-to-use serial communication interface, making it an ideal choice for embedded systems and intelligent lighting control. Manufactured using CMOS technology, the TM1650 offers excellent electrical performance and stable operating characteristics. It supports both multiplexed and non-multiplexed driving modes, allowing flexible configuration based on application requirements. The controller also supports brightness adjustment and blinking control functions, significantly enhancing the dynamic expression of LED displays.
Module Features
The TM1650 module integrates LED driving and keyboard scanning functions, featuring MCU digital interfaces, data latches, and multi level brightness control. It can directly drive multiple digital tubes and support key detection. With a wide input voltage range, high driving capability, strong anti interference performance, and reliable operation, the compact module requires minimal external components and is widely used in home appliances, medical devices, industrial instruments, and smart terminals that demand continuous and stable display.
Working Principle
TM1650 integrates four independent 74HC4511 decoders internally. Each decoder can drive an 8-segment digital tube, enabling the simultaneous display of 4 digits or letters. Additionally, it includes control pins designed to receive instructions from external microcontrollers, such as brightness adjustment and digital tube segment selection control. For key scanning, TM1650 typically detects the status of different keys through its internal multiplexer, thereby reducing the number of external I/O ports required.
Function of TM1650 pins
| Pin | Definition |
|---|---|
| VCC | Positive pole |
| GND | Power ground |
| SCL | Serial clock signal pin |
| SDA | Serial data transmission pin |
Matters Need To Attention
When using the TM1650, ensure the supply voltage is within 2.8V 5.5V to prevent damage. The display must be common cathode, and all segment connections must be correct. Drive current should stay within the chip’s capability; use appropriate current limiting resistors and avoid long term overload. Maintain good grounding and keep away from strong interference sources for stable operation.
Application Scenarios
The TM1650 is widely used in various intelligent devices requiring digital display and key interaction due to its stable LED driving capability, flexible keyboard scanning function, and strong anti-interference performance. In home appliances, it is commonly applied in microwave ovens, air conditioners, washing machines, rice cookers, and other products for time setting, mode display, and status indication, providing users with intuitive operation feedback. In medical equipment, the TM1650 can accurately display measurement data, time information, and device status in blood pressure monitors, thermometers, heart rate monitors, and more, meeting the high reliability requirements of medical devices. In industrial instruments, it is suitable for voltmeters, ammeters, counters, temperature controllers, and other equipment, capable of continuously and stably displaying various measurement parameters in complex industrial environments. Additionally, in smart terminal products such as calculators, electronic dictionaries, smart watches, and portable detectors, the TM1650 plays an important role by providing clear digital interfaces and convenient key input functions.
Related Information
Shipping Cost
We only ship to the United States. Shipping costs are calculated based on the total order amount.
Shipping Method And Delivery Time
All orders will be processed and shipped within 72 hours of placing the order (excluding weekends and holidays). They will ship from Shenzhen, China, primarily via 4PX logistics. Depending on the destination and logistics conditions, other carriers such as DHL, FedEx, UPS, USPS, etc., may also handle the delivery. Estimated shipping time is 7-12 business days, with actual delivery occurring in 10-17 business days, depending on logistics conditions.
Payment:
We accept Visa, Master card, Maestro, American Express, JCB, Dinner's Club, Discover, Paypal, Apple Pay, Google Pay .
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