- 您现在的位置：买卖IC网 > PDF目录98148 > STLED316SMTR (STMICROELECTRONICS) 4 X 17 SEGMENTS SEGMENT LED DRVR AND DSPL CTLR, PDSO24 PDF资料下载
参数资料
| 型号： | STLED316SMTR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 显示控制器 |
| 英文描述： | 4 X 17 SEGMENTS SEGMENT LED DRVR AND DSPL CTLR, PDSO24 |
| 封装： | ROHS COMPLIANT, SOP-24 |
| 文件页数： | 4/33页 |
| 文件大小： | 438K |
| 代理商： | STLED316SMTR |
第1页第2页第3页当前第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页
STLED316S functional description
STLED316S
12/33
3.8
LED drivers
The constant current capability is up to 40 mA per output segment and is set for all the
outputs using a single external resistor. When acting as digit drivers, the outputs source
current to the display anodes. When acting as segment drivers, the LED outputs sink current
from the display cathodes. The outputs are high impedance when not being used as digit or
segment drivers.
Each port configured as a LED digit driver behaves as a digitally-controlled constant current
sink. The LED drivers are suitable for both discrete LEDs and common anode (CA) numeric
LED digits. When fully configured as a LED driver, the STLED316S controls up to 8 LED
segments in a single digit with 8-step logarithmic brightness control for the digits. A single
resistor sets the maximum segment current for all the segments, with a maximum of 40mA
per segment. The STLED316S drives any combination of discrete LEDs and CA digits for
numeric displays.
The recommended value of RSET is the minimum allowed value, since it sets the display
driver to the maximum allowed segment current. RSET can be a higher value to set the
segment current to a lower maximum value where desired. The user must also ensure that
the maximum current specifications of the LEDs connected to the drivers are not exceeded.
The brightness of the individual digits in the display panel can be controlled separately.
3.9
Interrupt
The device includes an active low level IRQ_N pin to the microprocessor. The STLED316S
generates an interrupt when a key is pressed.
3.10
Operating the device with 3.3 V interface voltages
The device can detect the input voltage levels reference to 3.3 V from the main controller
chip as long as the VIL and VIH specifications of the STLED316S are met. If the input
voltage to STLED316S is greater than 2.9 V, the STLED316S will recognize the signal level
as a valid high and if the input voltage is lower than 1.75 V, it will be recognized as a valid
low level.
For the output signals from the device like DOUT and IRQ_N, the signal level depends on
the external supply to which the external pull up resistor is connected to. Thus this
eliminates the use of any level shifter between the main controller and the STLED316S.
相关PDF资料 |
PDF描述 |
|---|---|
| STM32F101C8T6 | 32-BIT, FLASH, 36 MHz, RISC MICROCONTROLLER, PQFP48 |
| STM32F101R6T6 | 32-BIT, FLASH, 36 MHz, RISC MICROCONTROLLER, PQFP64 |
| STM32F101VBT6 | 32-BIT, FLASH, 36 MHz, RISC MICROCONTROLLER, PQFP100 |
| STM32F101T6U6 | 32-BIT, FLASH, 36 MHz, RISC MICROCONTROLLER, QCC36 |
| STM32F101CBT6AXX | 32-BIT, FLASH, 36 MHz, RISC MICROCONTROLLER, PQFP48 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| STLED325QTR | 功能描述:LED照明驱动器 I2C interfaced LED controller/driver RoHS:否 制造商:STMicroelectronics 输入电压:11.5 V to 23 V 工作频率: 最大电源电流:1.7 mA 输出电流: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:SO-16N |
| STLED32MAT-EVAL1 | 功能描述:BOARD EVALUATION FOR LED ARRAY RoHS:否 类别:编程器，开发系统 >> 过时/停产零件编号 系列:- 标准包装:1 系列:- 传感器类型:CMOS 成像，彩色（RGB） 传感范围:WVGA 接口:I²C 灵敏度:60 fps 电源电压:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相关产品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP |
| STLED524 | 功能描述:IC MATRIX LED DISPL DVR 56CSP 制造商:stmicroelectronics 系列:- 包装:剪切带（CT） 零件状态:有效 显示类型:LED 配置:点阵 接口:SPI 数字或字符:- 电流 - 电源:- 电压 - 电源:2.7 V ~ 5.5 V 工作温度:-30°C ~ 85°C 安装类型:表面贴装 封装/外壳:56-UFBGA，WLCSP 供应商器件封装:56-CSP（3.4x3.0） 标准包装:1 |
| ST-LEQ1 | 制造商:Radio Design Labs 功能描述:Use With Vca Loudne Equalizer 制造商:RADIO DESIGN LABS 功能描述:LOUDNESS EQUALIZER USE WITH VCA |
| STLGCA-1.024 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Crystal Oscillator |
发布紧急采购，3分钟左右您将得到回复。