Product overview
Description
The STLED316S is a compact LED controller and driver that interface microprocessors to LED displays through a serial 3-wire interface. It drives LED connected in common anode configuration.
The STLED316S drives up to 48 discrete LEDs in 8 segment/6 digit configuration while functioning from a supply voltage of 5.0V. Additionally it can be used to drive 8 discrete LEDs which form a part of LED digit. The individual LEDs are wired as segments of a digit and brightness of these individual LEDs can be controlled digitally. The maximum segment current for the display digits is set through a single external resistor. Individual digits may be addressed and updated without rewriting the entire display.
Additionally it includes key scanning for an 8x2 key matrix which automatically scans a matrix of up to 16 switches. STLED316S supports numerictype displays and reduces the overall BOM costs through high integration. Also it provides ESD protection of greater than 4 kV HBM.
The LED controller/driver is ideal as a peripheral device to interface the display with a singlechip microcomputer.
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All features
- A single LED digit output (DIG1_LED) can be used to drive up to 8 discrete LEDs
- Inputs with Schmitt trigger give superior noise immunity
- 5.0 V (± 10%) for VCC
- 8-step dimming circuit to control brightness of individual LEDs for LED digit
- Built-in power on reset and soft-start circuits
- Drives common-anode LED digits
- -40 °C to 85 °C operating temperature range
- Available in SO24 package
- 8-step dimming circuit to control the overall display brightness
- 3-wire serial bus interface (CLK, STB, DIN/DOUT)
- LED driver with 14 outputs (8 segments/6 digits)
- Output pins connected directly to the LEDs or can be open-drain
- 40 mA load current capability for each segment
- Low power consumption in standby mode
- Single external resistor for output current setting
- Key-scanning (8 x 2 matrix)
Circuit Diagram
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STMicroelectronics - STLED316S
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| STLED316SMTR | Active | SO-24 | Industrial | Ecopack2 |
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.
Sample & Buy
| Part Number | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating Temperature (°C) (min) | Operating Temperature (°C) (max) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STLED316SMTR | | | distributors No availability of distributors reported, please contact our sales office |
STLED316SMTR Active
(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors