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MAX7326 Evaluation Kit/Evaluation System
Detailed Description of Hardware
The MAX7326 has 12 push-pull outputs and 4 inputs.
The MAX7326 EV kit board provides a proven layout for
evaluating the MAX7326. The EV kit comes with a
MAX7326ATG+ installed.
Hardware-Reset Control
The hardware-reset function is controlled by jumper
JU3, as shown in Table 2. Putting a shunt in the 1-2
position resets all registers and puts the device in the
power-on-reset state.
Power Supplies
The MAX7326 EV kit can either be powered from the
CMAXQUSB (2.5V, 3.3V, and 5V) or from a user-
supplied 1.71V to 5.5V power supply connecting to
VDD, as shown in Table 3.
If a user-supplied power supply is used, ensure that the
voltage setting is compatible with the CMAXQUSB JU1
setting.
Table 3. V+ Selection Configuration
Table 2. RST Jumper Configuration
JUMPER
SHUNT
POSITION
DESCRIPTION
JUMPER
JU3
SHUNT POSITION
1-2
Open*
DESCRIPTION
Reset
Normal operation
JU4
1-2
2-3*
User-supplied 1.71V to 5.5V power
supply (VDD)
Powered by CMAXQUSB
*Default position.
I 2 C Address Configuration
The combination of shunt positions of jumpers JU1 and
JU2 determine the I 2 C slave address of the MAX7326
EV kit. See Table 1 to select the appropriate setting.
*Default position.
User-Supplied I 2 C Interface
To use the MAX7326 EV kit with a user-supplied I 2 C
interface, install a shunt on jumper JU4’s 1-2 position.
Connect SDA, SCL, and GND lines from the user-
supplied I 2 C interface to the SDA, SCL, and GND pads
on the MAX7326 EV kit. Apply a 1.71V to 5.5V power
supply to the VDD pad of the MAX7326 EV kit.
Depending on the configuration of the user-supplied
I 2 C interface, it may be necessary to install the I 2 C
pullup resistors, R10 and R11.
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MAX7327AATG+ 功能描述:接口-I/O扩展器 I2C PORT EXP&ER w/ 12 PUSH-PULL OUTPUTS RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel
MAX7327AATG+T 功能描述:接口-I/O扩展器 I2C PORT EXP&ER w/ 12 PUSH-PULL OUTPUTS RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel
MAX7327AEG 功能描述:接口-I/O扩展器 I2C Port Expander w/12 P-P Out & 4 I/O RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel
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MAX7327ATG 制造商:Maxim Integrated Products 功能描述:I2C PORT EXPANDER WITH 12 PUSH-PULL OUTPUTS A - Rail/Tube
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