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参数资料
| 型号： | 78M6612-DB/OMU-RF |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 25/46页 |
| 文件大小： | 0K |
| 描述： | KIT DEMO OUTLET MEAS OMU1-S-RF |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 主要目的： | 电源管理，电度表 |
| 已用 IC / 零件： | 78M6612 |
| 已供物品： | 2 个板，线缆，CD |
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DS_6612_001
78M6612 Data Sheet
3.9
UART1 (TX1/RX1)
The TX1 and RX1 pins can be used for a regular serial interface (by connecting a RS-232 transceiver for
example), or they can be used to directly operate optical components (for example, an infrared diode and
phototransistor implementing a FLAG interface).
3.10 Connecting V1 and Reset Pins
A voltage divider should be used to establish that V1 is in a safe range (see Figure 15) . V1 must be
lower than 2.9 V in all cases in order to keep the hardware watchdog timer enabled. A series 5 k ?
resistor (R3) and a capacitor to ground (C1) are added for enhanced EMC immunity. The parallel
impedance of R1 and R2 should be approximately 8 k ? to 10 k ? in order to provide hysteresis for the
power fault monitor.
V3P3
R 1
R 3
GND
R 2
5k Ω
C 1
100pF
V1
Figure 15: Voltage Divider for V1
Even though a functional power and measurement unit will not necessarily need a reset switch, it is useful to
have a reset pushbutton switch for prototyping, as shown in Figure 16 , left side. The RESET signal may be
sourced from V3P3SYS, or VBAT (if a battery is present), or from a combination of these sources, depending
on the application.
For production, the RESET pin should be protected by the external components shown in Figure 16 , right
side. R 1 should be in the range of 100 ? and mounted as closely as possible to the IC. The RESET pin
can also be directly connected to ground.
VBAT/
V3P3D
R 2
V3P3D
78M6612
78M6612
1k Ω
Reset
Switc
h
1nF
10k Ω
R 1
RESE
T
DGN
D
100 Ω
R 1
RESET
DGND
Figure 16: External Components for RESET: Development Circuit (Left), Production Circuit (Right)
Rev 2
25
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 78M6612-EVM-1 | 功能描述:电源管理IC开发工具 78M6612 Eval Brd RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| 78M6612-GT/F/P1 | 功能描述:计量片上系统 - SoC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
| 78M6612-GT/F/P2 | 功能描述:计量片上系统 - SoC 78M6612-GT/F/P2 RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
| 78M6612-GTR/F/P1 | 功能描述:计量片上系统 - SoC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
| 78M6612-GTR/F/P2 | 功能描述:计量片上系统 - SoC 78M6612-GTR/F/P2 RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 处理器系列:71M6511 类型:Metering SoC 最大时钟频率:70 Hz 程序存储器大小:64 KB 数据 RAM 大小:7 KB 接口类型:UART 可编程输入/输出端数量:12 片上 ADC: 安装风格:SMD/SMT 封装 / 箱体:LQFP-64 封装:Reel |
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