參數(shù)資料
型號(hào): PCA9553
廠商: NXP Semiconductors N.V.
英文描述: RD-9ASJS ; 9 PIN FEMALE RoHS Compliant: Yes
中文描述: 4位I2C LED與可編程閃爍率司機(jī)
文件頁(yè)數(shù): 10/18頁(yè)
文件大小: 130K
代理商: PCA9553
Philips Semiconductors
Product data sheet
PCA9553
4-bit I
2
C LED driver with programmable blink rates
2004 Oct 01
10
Programming example
The following example will show how to set LED0 and LED1 off. It
will then set LED2 to blink at 1 Hz, 50% duty cycle. LED3 will be set
to blink at 4 Hz, 25% duty cycle. PCA9553/01 is used in this
example.
Table 1.
I
2
C-bus
Start
S
PCA9553 address
C4h
PSC0 subaddress + auto-increment
11h
Set prescaler PSC0 to achieve a period of 1 second:
Blink period
1
PSC0
1
44
PSC0 = 43
2Bh
Set PWM0 duty cycle to 50%:
256 – PWM0
256
0.5
PWM0 = 128
80h
Set prescaler PWM1 to achieve a period of
0.25 seconds:
Blink period
0.25
PSC1
1
44
PSC1 = 10
0Ah
Set PWM1 output duty cycle to 25%:
256 – PWM1
256
PWM1 = 192
0.25
C0h
Set LED0 on, LED1 off, LED2 set to blink at PSC0,
PWM0, LED3 set to blink at PCS1, PWM1
E4h
Stop
P
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PCA9553D 制造商:PHILIPS 制造商全稱(chēng):NXP Semiconductors 功能描述:4-bit I2C LED driver with programmable blink rates
PCA9553D/01 功能描述:LED照明驅(qū)動(dòng)器 LED DRVR 4BIT I2C RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
PCA9553D/01,112 功能描述:LED照明驅(qū)動(dòng)器 LED DRVR 4BIT I2C RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
PCA9553D/01,118 功能描述:LED照明驅(qū)動(dòng)器 4-BIT I2C FM OD LED BLK RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
PCA9553D/01112 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: