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参数资料
| 型号： | CAT9532WI-T1 |
| 厂商： | ON Semiconductor |
| 文件页数： | 9/15页 |
| 文件大小： | 0K |
| 描述： | IC LED DRIVER LINEAR 24-SOIC |
| 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： | RGB |
| 频率： | 400kHz |
| 电源电压： | 2.3 V ~ 5.5 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC |
| 包装： | 标准包装 |
| 工作温度： | -40°C ~ 85°C |
| 产品目录页面： | 805 (CN2011-ZH PDF) |
| 其它名称： | CAT9532WI-T1DKR |
CAT9532
Write Operations
Data is transmitted to the CAT9532 registers using the
write sequence shown in Figure 9.
If the AI bit from the command byte is set to “1”, the
CAT9532 internal registers can be written sequentially.
After sending data to one register, the next data byte will be
sent to the next register sequentially addressed.
Read Operations
The CAT9532 registers are read according to the timing
diagrams shown in Figure 10 and Figure 12. Data from the
register, defined by the command byte, will be sent serially
on the SDA line.
After the first byte is read, additional data bytes may be
read when the auto ? increment flag, AI, is set. The additional
data byte will reflect the data read from the next register
sequentially addressed by the (B3 B2 B1 B0) bits of the
command byte.
When reading Input Port Registers (Figure 12), data is
clocked into the register on the failing edge of the
acknowledge clock pulse. The transfer is stopped when the
master will not acknowledge the data byte received and issue
the STOP condition.
LED Pins Used as General Purpose I/O
Any LED pins not used to drive LEDs can be used as
general purpose input/output, GPIO.
When used as input, the user should program the
corresponding LED pin to Hi ? Z (“00” for the LSx register
bits). The pin state can be read via the Input Register
according to the sequence shown in Figure 12.
For use as output, an external pull ? up resistor should be
connected to the pin. The value of the pull ? up resistor is
calculated according to the DC operating characteristics. To
set the LED output high, the user has to program the output
Hi ? Z writing “00” into the corresponding LED Selector
(LSx) register bits. The output pin is set low when the LED
output is programmed low through the LSx register bits
(“01” in LSx register bits).
SCL
1 2 3 4 5 6
Slave Address
7 8
9
Command Byte
Data To Register 1
Data To Register 2
SDA S 1 1 0 0 A2 A1 A0 0 A 0 0 0 AI B3 B2 B1 B 0 A
DATA 1
A
1.0 A
Start Condition
R/W
Acknowledge
From Slave
Acknowledge
From Slave
Acknowledge
From Slave
WRITE TO REGISTER
DATA OUT FROM PORT
t pv
Figure 9. Write to Register Timing Diagram
Slave Address
Acknowledge
From Slave
Acknowledge
From Slave
Slave Address
Acknowledge
From Slave
Acknowledge From Master
Data From Register
S 1
1 0 0 A2 A1 A0 0 A
COMMAND BYTE
A S
1 1 0 0 A2 A1 A0 1 A MSB
DATA
LSB A
R/W
At This Moment Master ? Transmitter
Becomes Master ? receiver and
Slave ? Receiver Becomes
R/W
First Byte
Auto ? increment
Register Address
If AI = 1
Slave ? Transmitter
Data From Register
No Acknowledge
From Master
Note: Transfer can be stopped at any time by a STOP condition.
MSB
DATA
LSB NA P
Last Byte
Figure 10. Read from Register Timing Diagram
http://onsemi.com
9
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CAT9532WI-T1 | 制造商:ON Semiconductor 功能描述:IC PROGRAMMABLE LED DIMMER SOIC-24 |
| CAT9532WI-T1-CUT TAPE | 制造商:ON 功能描述:CAT9532 Series 25 mA 5.5 V 400 kHz I2C 16-bit Programmable LED Dimmer - SOIC-24 |
| CAT9532YI | 功能描述:LED照明驱动器 16-Bit Prog LED Dimmer w/Interface 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 |
| CAT9532YI-T2 | 功能描述:LED照明驱动器 I2C/SMBus Expander w/LED Dimming 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 |
| CAT9534HV4I-G | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
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