参数资料
型号: PCA9685PW,118
厂商: NXP Semiconductors
文件页数: 8/51页
文件大小: 0K
描述: IC LED DRIVER RGBA 28-TSSOP
标准包装: 2,500
拓扑: 开路漏极,PWM
输出数: 16
内部驱动器:
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: 带卷 (TR)
工作温度: -40°C ~ 85°C
其它名称: 935285129118
PCA9685PW-T
PCA9685PW-T-ND
NXP Semiconductors
PCA9685
16-channel, 12-bit PWM Fm+ I 2 C-bus LED controller
7.1.4 Software Reset I 2 C-bus address
The address shown in Figure 5 is used when a reset of the PCA9685 needs to be
performed by the master. The Software Reset address (SWRST Call) must be used with
R/W = logic 0. If R/W = logic 1, the PCA9685 does not acknowledge the SWRST. See
Section 7.6 “ Software       reset   ” for more detail.
R/W
0
0
0
0
0
1
1
0
002aab416
Fig 5.
Software Reset address
Remark: The Software Reset I 2 C-bus address is a reserved address and cannot be used
as a regular I 2 C-bus slave address or as an LED All Call or LED Sub Call address.
7.2 Control register
Following the successful acknowledgement of the slave address, LED All Call address or
LED Sub Call address, the bus master will send a byte to the PCA9685, which will be
stored in the Control register.
This register is used as a pointer to determine which register will be accessed.
D7
D6
D5
D4
D3
D2
D1
D0
002aac826
reset state = 00h
Remark: The Control register does not apply to the Software Reset I 2 C-bus address.
Fig 6.
Control register
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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