STLED316S中文资料具有键盘扫描功能的串口连接6位LED控制器数据手册ST规格书

描述 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.

特性 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)

简介

STLED316S属于集成电路（IC）的专用。由制造生产的STLED316S专用该系列产品可提供所需的功能，用以将信息源/信宿连到各种复杂或范围狭窄应用中的传感器、变送器、致动器、传输介质或其他此类端点。例如，汽车安全气囊驱动器、车身控制和信息娱乐总线、自适应电缆均衡器、智能卡等等。