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參數(shù)資料
| 型號： | PCA9533DP |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | LED驅(qū)動(dòng)器 |
| 英文描述： | 4-bit I2C-bus LED dimmer |
| 封裝： | PCA9533D/01<SOT96-1 (SO8)|<<http://www.nxp.com/packages/SOT96-1.html<1<week 5, 2005,;PCA9533D/01<SOT96-1 (SO8)|<<http://www.nxp.com/packages/SOT96-1.html<1<week 5, |
| 文件頁數(shù)： | 19/24頁 |
| 文件大?。?/td> | 140K |
| 代理商： | PCA9533DP |
PCA9533_3
NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 03 — 27 April 2009
4 of 24
NXP Semiconductors
PCA9533
4-bit I2C-bus LED dimmer
6.
Functional description
Refer to Figure 1 “Block diagram of PCA9533”.
6.1 Device address
Following a START condition, the bus master must output the address of the slave it is
accessing. The address of the PCA9533/01 is shown in Figure 4 and the address of
PCA9533/02 is shown in Figure 5.
The last bit of the address byte denes the operation to be performed. When set to logic 1
a read is selected, while a logic 0 selects a write operation.
6.2 Control register
Following the successful acknowledgement of the slave address, the bus master will send
a byte to the PCA9533, which will be stored in the Control register.
The lowest 3 bits are used as a pointer to determine which register will be accessed.
If the Auto-Increment (AI) ag is set, the three low order bits of the Control register are
automatically incremented after a read or write. This allows the user to program the
registers sequentially. The contents of these bits will rollover to ‘000’ after the last register
is accessed.
When Auto-Increment ag is set (AI = 1) and a read sequence is initiated, the sequence
must start by reading a register different from the INPUT register (B2 B1 B0
≠ 0 0 0).
Only the 3 least signicant bits are affected by the AI ag. Unused bits must be
programmed with zeroes.
SCL
6
serial clock line
SDA
7
serial data line
VDD
8
supply voltage
Table 3.
Pin description …continued
Symbol
Pin
Description
Fig 4.
PCA9533/01 slave address
Fig 5.
PCA9533/02 slave address
002aae627
1
0
1
0
R/W
slave address
002aae628
1
0
1
R/W
slave address
Reset state: 00h
Fig 6.
Control register
B0
002aad744
0
AI
0
B2
B1
register address
Auto-Increment
flag
相關(guān)PDF資料 |
PDF描述 |
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| PCA9550D | 2-bit I2C-bus LED driver with programmable blink rates |
| PCA9550DP | 2-bit I2C-bus LED driver with programmable blink rates |
| PCA9551BS | 8-bit I2C-bus LED driver with programmable blink rates |
| PCA9551D | 8-bit I2C-bus LED driver with programmable blink rates |
| PCA9551PW | 8-bit I2C-bus LED driver with programmable blink rates |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PCA9533DP/01 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:4-bit I2C-bus LED dimmer |
| PCA9533DP/01,118 | 功能描述:LED照明驅(qū)動(dòng)器 I2C LED DIMMER 4BIT 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 |
| PCA9533DP/02 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:4-bit I2C-bus LED dimmer |
| PCA9533DP/02,118 | 功能描述:LED照明驅(qū)動(dòng)器 4-BIT I2C-BUS LED DIMMER 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 |
| PCA9533DP01 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:4-bit I2C LED dimmer |
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