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| 型号： | PCA9685PW/Q900,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 25/51页 |
| 文件大小： | 0K |
| 描述： | IC PWM CTLR LED DVR 28TSSOP |
| 产品培训模块： | I²C Bus Fundamentals |
| 标准包装： | 1 |
| 拓扑： | 开路漏极，PWM |
| 输出数： | 16 |
| 内部驱动器： | 是 |
| 类型 - 主要： | 背光，LED 闪烁器 |
| 类型 - 次要： | RGBA |
| 频率： | 25MHz，50MHz |
| 电源电压： | 2.3 V ~ 5.5 V |
| 输出电压： | 5.5V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 28-TSSOP |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 其它名称： | 568-5931-6 |
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NXP Semiconductors
PCA9685
16-channel, 12-bit PWM Fm+ I 2 C-bus LED controller
7.3.6 SUBADR1 to SUBADR3, I 2 C-bus subaddress 1 to 3
Table 8.
SUBADR1 to SUBADR3 - I 2 C-bus subaddress registers 0 to 3 (address 02h to
04h) bit description
Legend: * default value.
Address
Register
Bit
Symbol
Access Value
Description
02h
SUBADR1
7:1
A1[7:1]
R/W
1110 001*
I 2 C-bus subaddress 1
0
A1[0]
R only
0* reserved
03h
SUBADR2
7:1
A2[7:1]
R/W
1110 010*
I 2 C-bus subaddress 2
0
A2[0]
R only
0* reserved
04h
SUBADR3
7:1
A3[7:1]
R/W
1110 100*
I 2 C-bus subaddress 3
0
A3[0]
R only
0* reserved
Subaddresses are programmable through the I 2 C-bus. Default power-up values are E2h,
E4h, E8h, and the device(s) will not acknowledge these addresses right after power-up
(the corresponding SUBx bit in MODE1 register is equal to 0).
Once subaddresses have been programmed to their right values, SUBx bits need to be
set to logic 1 in order to have the device acknowledging these addresses (MODE1
register).
Only the 7 MSBs representing the I 2 C-bus subaddress are valid. The LSB in SUBADRx
register is a read-only bit (0).
When SUBx is set to logic 1, the corresponding I 2 C-bus subaddress can be used during
either an I 2 C-bus read or write sequence.
7.3.7 ALLCALLADR, LED All Call I 2 C-bus address
Table 9.
ALLCALLADR - LED All Call I 2 C-bus address register (address 05h) bit
description
Legend: * default value.
Address
Register
Bit
Symbol
Access Value
Description
05h
ALLCALLADR
7:1
AC[7:1]
R/W
1110 000*
ALLCALL I 2 C-bus
address register
0
AC[0]
R only
0* reserved
The LED All Call I 2 C-bus address allows all the PCA9685s in the bus to be programmed
at the same time (ALLCALL bit in register MODE1 must be equal to 1 (power-up default
state)). This address is programmable through the I 2 C-bus and can be used during either
an I 2 C-bus read or write sequence. The register address can also be programmed as a
Sub Call.
Only the 7 MSBs representing the All Call I 2 C-bus address are valid. The LSB in
ALLCALLADR register is a read-only bit (0).
If ALLCALL bit = 0, the device does not acknowledge the address programmed in register
ALLCALLADR.
PCA9685
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 3 — 2 September 2010
? NXP B.V. 2010. All rights reserved.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PCA9691BS/1 | 制造商:NXP Semiconductors 功能描述:IC ADC/DAC 8-BIT I2C 16-HVQFN 制造商:NXP Semiconductors 功能描述:IC, ADC/DAC, 8-BIT, I2C, 16-HVQFN |
| PCA9691BS/1,118 | 功能描述:I2C 接口集成电路 ADC/DAC 16-Pin HVQFN EP RoHS:否 制造商:NXP Semiconductors 电源电压-最大:5.5 V 电源电压-最小:2.3 V 最大工作频率:400 KHz 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-16 |
| PCA9691BS/1118 | 制造商:NXP Semiconductors 功能描述:PCA9691BS/HVQFN16/REEL13//1 |
| PCA9691T/1，112 | 制造商:NXP Semiconductors 功能描述: |
| PCA9691T/1，118 | 制造商:NXP Semiconductors 功能描述: |
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