收藏本站
NXP Semiconductors
PCA9533
4-bit I 2 C-bus LED dimmer
6.2.1 Control register de?nition
Table 4.
Register summary
B2
0
0
0
0
1
1
B1
0
0
1
1
0
0
B0
0
1
0
1
0
1
Symbol
INPUT
PSC0
PWM0
PSC1
PWM1
LS0
Access
read only
read/write
read/write
read/write
read/write
read/write
Description
input register
frequency prescaler 0
PWM register 0
frequency prescaler 1
PWM register 1
LED selector
6.3 Register descriptions
6.3.1 INPUT - Input register
The INPUT register re?ects the state of the device pins. Writes to this register will be
acknowledged but will have no effect.
Table 5.
INPUT - Input register description
Bit
Symbol
Default
7
-
0
6
-
0
5
-
0
4
-
0
3
LED3
X
2
LED2
X
1
LED1
X
0
LED0
X
Remark: The default value ‘X’ is determined by the externally applied logic level (normally
logic 1) when used for directly driving LED with pull-up to V DD .
6.3.2 PCS0 - Frequency Prescaler 0
PSC0 is used to program the period of the PWM output.
The period of BLINK0 = (PSC0 + 1) / 152.
Table 6.
PSC0 - Frequency Prescaler 0 register description
Bit
Symbol
Default
7
PSC0[7]
0
6
PSC0[6]
0
5
PSC0[5]
0
4
PSC0[4]
0
3
PSC0[3]
0
2
PSC0[2]
0
1
PSC0[1]
0
0
PSC0[0]
0
6.3.3 PWM0 - Pulse Width Modulation 0
The PWM0 register determines the duty cycle of BLINK0. The outputs are LOW (LED on)
when the count is less than the value in PWM0 and HIGH (LED off) when it is greater. If
PWM0 is programmed with 00h, then the PWM0 output is always HIGH (LED off).
The duty cycle of BLINK0 = PWM0 / 256.
Table 7.
PWM0 - Pulse Width Modulation 0 register description
Bit
Symbol
Default
7
PWM0
[7]
1
6
PWM0
[6]
0
5
PWM0
[5]
0
4
PWM0
[4]
0
3
PWM0
[3]
0
2
PWM0
[2]
0
1
PWM0
[1]
0
0
PWM0
[0]
0
PCA9533_3
? NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 03 — 27 April 2009
5 of 24
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
PCA9550DP,118 IC LED DRIVER BLINKER 8-TSSOP
PCA9551BS,118 IC LED DRIVER BLINKER 16-HVQFN
PCA9552D,118 IC LED DRIVER BLINKER 24-SOIC
PCA9553DP/01,118 IC LED DRIVER LINEAR 8-TSSOP
PCA9624PW,118 IC LED DRIVER RGBA 24-TSSOP
PCA9625D/S911,518 IC LED DRIVER RGBA 32-SOIC
PCA9626BS,518 IC LED DRIVER RGBA 48HVQFN
PCA9632DP2,118 IC LED DRIVER RGBA 10-TSSOP
相关代理商/技术参数
PCA9533DP/02 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:4-bit I2C-bus LED dimmer
PCA9533DP/02,118 功能描述:LED照明驱动器 4-BIT I2C-BUS LED DIMMER 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
PCA9533DP01 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:4-bit I2C LED dimmer
PCA9533DP02 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:4-bit I2C LED dimmer
PCA9534 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:8-bit I2C and SMBus, low power I/O port with interrupt
PCA9534A 制造商:TI 制造商全称:Texas Instruments 功能描述:REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS
PCA9534A_10 制造商:TI 制造商全称:Texas Instruments 功能描述:REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS
PCA9534A_101 制造商:TI 制造商全称:Texas Instruments 功能描述:REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS