参数资料
型号: SC668ULTRT
厂商: Semtech
文件页数: 25/46页
文件大小: 0K
描述: IC LED DRVR LMU 8CH MLPQUT20
特色产品: Semtech sc667 and sc668
标准包装: 1
拓扑: 线性(LDO),PWM
输出数: 12
内部驱动器:
类型 - 主要: 背光,LED 闪烁器,照明管理装置(LMU)
频率: 400kHz
电源电压: 2.9 V ~ 5.5 V
安装类型: 表面贴装
封装/外壳: 20-UFQFN 裸露焊盘
供应商设备封装: 20-MLPQ(3x3)
包装: 标准包装
工作温度: -40°C ~ 85°C
其它名称: SC668ULDKR
SC668
Serial Interface (continued)
I 2 C Direct Format Write
S
Slave Address
W
A
Register Address
A
Data
A
P
S – Start Condition
W – Write = ‘0’
A – Acknowledge (sent by slave)
P – Stop condition
Slave Address – 7-bit
Register address – 8-bit
Data – 8-bit
I 2 C Stop Separated Format Read
Register Address Setup Access
Master Addresses
other Slaves
Register Read Access
S Slave Address W A Register Address A P S
Slave Address B
S/Sr
Slave Address
R A
Data
NACK P
S – Start Condition
W – Write = ‘0’
R – Read = ‘1’
A – Acknowledge (sent by slave)
NAK – Non-Acknowledge (sent by master)
Sr – Repeated Start condition
P – Stop condition
I 2 C Combined Format Read
Slave Address – 7-bit
Register address – 8-bit
Data – 8-bit
S
Slave Address
W A
Register Address
A Sr
Slave Address
R
A
Data
NACK P
S – Start Condition
W – Write = ‘0’
R – Read = ‘1’
A – Acknowledge (sent by slave)
NAK – Non-Acknowledge (sent by master)
Sr – Repeated Start condition
P – Stop condition
Slave Address – 7-bit
Register address – 8-bit
Data – 8-bit
25
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