0.8-inch Four-Digit Digital Tube Display Module – Red
$4.401pcs
The TM1650 is an integrated circuit designed for driving common-cathode digital tubes. It is widely used for controlling four-digit digital tube displays in devices such as instrument panels and smart home appliances, offering clear and stable display performance.
| Dimensions | 81.5 × 26.0 mm |
|---|---|
| Brand |
easyelecmodule |
1568 in stock
Product Introduction
The TM1650 is a dedicated LED driver and keyboard scanner IC with integrated MCU digital interfaces, data latches, LED drivers, key scanning circuits, and multi level brightness control. It directly drives multiple seven segment displays or LED arrays while supporting key detection, simplifying peripheral design and enhancing system stability.
Features Description
- Two display modes (8-segment × 4-digit and 7-segment × 4-digit).
- Supports 28 individual keys in a 7×4-bit configuration and 4 combination keys.
- 8 levels of adjustable brightness.
- Segment drive current greater than 25mA, digit drive current greater than 150mA.
- High-speed 2-wire serial interface (CLK, DAT).
- Oscillation mode: Built-in RC oscillator.
- Built-in power-on reset circuit.
- Built-in data latch circuit.
- Supports power supply voltage range of 3V to 5.5V.
- Strong anti-interference capability.
- Package forms: SOP16, DIP16.
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
Digital Tube Connection：When connecting the display, ensure that it is a common‑cathode type and that its common pin is securely connected to the power supply negative (GND). Carefully verify the connection of each segment (a‑g and DP) to the corresponding pins of the TM1650 to prevent miswiring or poor contact, ensuring reliable display performance.
Driving Current Control：To maintain stable operation, the forward current of each segment of the digital tube must be kept within the maximum driving capability of the TM1650. It is recommended to control the current by adjusting the external current‑limiting resistors or the internal brightness settings of the chip. This avoids overload, which could cause overheating or damage, thereby extending the product lifespan.
Application Scenarios
Household appliances: Air conditioners, microwave ovens, washing machines, water heaters, induction cookers, set-top boxes.
Measuring and weighing instruments:Electronic scales, counters, smart electricity meters, temperature controllers.
Industrial Instruments:Smart meters, testing equipment, small industrial instrument panels.
Consumer Electronics:Smart clocks, thermohygrometers, electronic toys, handheld devices.
Medical Health:Blood pressure monitors, thermometers, small medical monitoring devices.
Electronic DIY: Digital tube display modules, compact control boards.
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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