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| 型号： | MAX3107EAG+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 43/52页 |
| 文件大小： | 0K |
| 描述： | IC UART SPI/I2C 128 FIFO 24SSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 特点： | 内部振荡器 |
| 通道数： | 4，QUART |
| FIFO's： | 128 字节 |
| 规程： | RS232，RS485 |
| 电源电压： | 2.35 V ~ 3.6 V |
| 带自动流量控制功能： | 是 |
| 带IrDA 编码器/解码器： | 是 |
| 带故障启动位检测功能： | 是 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 24-SSOP |
| 包装： | 标准包装 |
| 其它名称： | MAX3107EAG+TDKR |
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SPI/I2C UART with 128-Word FIFOs
Low-Power Operation
To reduce the power consumption during normal opera-
tion, the following techniques can be adopted:
Do not use the internal PLL. This saves the most power
of the options listed here. Disable and bypass the PLL.
With the PLL enabled, the current to the VA supply is
in the range of a few mA (depending on clock and
multiplication factor), while it drops to below 1mA if
disabled.
Keep the internal clock rates as low as possible.
Use low voltage on the VA supply.
Use an external 1.8V supply. This saves the power
dissipated in the internal 1.8V linear regulator for the
1.8V logic supply. Connect the external 1.8V supply to
V18 and disable the internal regulator by connecting
LDOEN to DGND.
Interrupts and Polling
The host controller can manage and control the MAX3107
through polling and/or through interrupts. In polled
mode, the IRQ physical interrupt output is not used and
the host controller polls the ISR register at frequent inter-
vals to establish the state of the MAX3107.
Alternatively, the MAX3107’s physical IRQ interrupt
can be used to interrupt the host controller at specified
events, making polling unnecessary. The IRQ output is
an open-drain output that requires a pullup resistor to VL.
Logic-Level Translation
The MAX3107 can be directly connected to transceivers
and controllers that have different supply voltages. The
VL input defines the logic voltage levels of the control-
ler interface while the VEXT voltage defines the logic of
the transceiver interface. This ensures flexibility when
selecting a controller and transceiver. Figure 24 is an
example of a setup when the controller, transceiver, and
the MAX3107 are powered by three different supplies.
Figure 23. Startup and Initialization Flowchart
POWER-UP/
RST INPUT PULLED HIGH/
RST BIT SET LOW
IS IRQ HIGH?
OR
RevID READ
SUCCESSFULLY
Y
N
CONFIGURE
CLOCKING
CONFIGURE
MODES
CONFIGURE
FIFO CONTROL
CONFIGURE
FLOW CONTROL
CONFIGURE
GPIOs
START
COMMUNICATION
ENABLE
INTERRUPTS
48
Maxim Integrated
MAX3107
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX3107ETG/V+ | 功能描述:UART 接口集成电路 UART RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| MAX3107ETG/V+T | 功能描述:UART 接口集成电路 SPI/IC UART with 128-Word FIFOs and Internal Oscillator RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| MAX3107ETG+ | 功能描述:UART 接口集成电路 SPI/I2C Compatible RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| MAX3107ETG+T | 功能描述:UART 接口集成电路 SPI/I2C Compatible RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| MAX3107EVKIT+ | 功能描述:UART 接口集成电路 UART with integrated Oscillator RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
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