9-Output LED Driver with Intensity Control
and Hot-Insertion Protection
Table 1. MAX6965 I 2 C Slave Address Map
PIN AD0
SCL
SDA
GND
V+
A6
1
1
0
0
A5
1
1
1
1
A4
0
0
0
0
DEVICE ADDRESS
A3
0
0
0
0
A2
0
1
0
1
A1
0
0
0
0
A0
0
0
0
0
Table 2. Register Address Map
REGISTER
Blink phase 0 outputs
User RAM
Blink phase 1 outputs
Master, O8 intensity
Configuration
Outputs intensity O1, O0
Outputs intensity O3, O2
Outputs intensity O5, O4
Outputs intensity O7, O6
ADDRESS CODE
(hex)
0x01
0x03
0x09
0x0E
0x0F
0x10
0x11
0x12
0x13
AUTOINCREMENT
ADDRESS
0x01 (no change)
0x03 (no change)
0x09 (no change)
0x0E (no change)
0x0F (no change)
0x11
0x12
0x13
0x10
during the high period of the clock pulse. When the
master is transmitting to the MAX6965, the device gen-
erates the acknowledge bit because the MAX6965 is
the recipient. When the MAX6965 is transmitting to the
master, the master generates the acknowledge bit
because the master is the recipient.
Slave Address
The MAX6965 has a 7-bit long slave address (Figure 6).
The eighth bit following the 7-bit slave address is the
R/ W bit. The R/ W bit is low for a write command, high
for a read command.
The second (A5), third (A4), fourth (A3), sixth (A1), and
last (A0) bits of the MAX6965 slave address are always
1, 0, 0, 0, and 0. Slave address bits A6 and A2 are
selected by the address input AD0. AD0 can be con-
nected to GND, V+, SDA, or SCL. The MAX6965 has
four possible slave addresses (Table 1), and therefore
a maximum of four MAX6965 devices can be controlled
independently from the same interface.
Message Format for Writing the MAX6965
A write to the MAX6965 comprises the transmission of
the MAX6965’s slave address with the R/ W bit set to
zero, followed by at least 1 byte of information. The first
byte of information is the command byte. The command
byte determines which register of the MAX6965 is to be
written to by the next byte, if received (Table 2). If a
STOP condition is detected after the command byte is
received, then the MAX6965 takes no further action
beyond storing the command byte.
Any bytes received after the command byte are data
bytes. The first data byte goes into the internal register of
the MAX6965 selected by the command byte (Figure 8).
If multiple data bytes are transmitted before a STOP con-
dition is detected, these bytes are generally stored in
subsequent MAX6965 internal registers because the
command byte address autoincrements (Table 2). A
diagram of a write to the output ports registers (blink
phase 0 register or blink phase 1 register) is given in
Figure 10.
8
_______________________________________________________________________________________
相关PDF资料
MAX6967ATE+ IC LED DRIVER LINEAR 16-TQFN
MAX6968AAE+ IC LED DRIVER LINEAR 16-SSOP
MAX6970AUE+ IC LED DRIVER LINEAR 16-TSSOP
MAX6971AUG+T IC LED DRIVER LINEAR 24-TSSOP
MAX6974ATL+ IC LED DRIVER LINEAR 40-TQFN
MAX6977AAE+ IC LED DRIVER LINEAR 16-SSOP
MAX6978AUE+ IC LED DVR CONST-CURR 16TSSOP
MAX6979AUG+ IC LED DRIVER LINEAR 24-TSSOP
相关代理商/技术参数
MAX6965ATE-T 功能描述:LED显示驱动器 RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube
MAX6965EVCMAXQU 功能描述:LED 照明开发工具 9-Output LED Driver with Intensity Control RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装:
MAX6965EVKIT 功能描述:LED 照明开发工具 Evaluation Kit/Evaluation System for the MAX6965 RoHS:否 制造商:Fairchild Semiconductor 产品:Evaluation Kits 用于:FL7732 核心: 电源电压:120V 系列: 封装:
MAX6966AEE 功能描述:LED显示驱动器 RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube
MAX6966AEE+ 功能描述:LED显示驱动器 10-Port Constant Current LED Driver RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube
MAX6966AEE+T 功能描述:LED显示驱动器 10-Port Constant Current LED Driver RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube
MAX6966AEE-T 功能描述:LED显示驱动器 RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube
MAX6966ATE 功能描述:LED显示驱动器 RoHS:否 制造商:Micrel 数位数量:5 片段数量: 安装风格:SMD/SMT 封装 / 箱体:PLCC-44 工作电源电压:4.75 V to 11 V 最大电源电流:10 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Tube