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參數(shù)資料
型號： 71M6511-IGT
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 電源管理
英文描述： 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP64
封裝： LQFP-64
文件頁數(shù)： 82/98頁
文件大小： 1278K
代理商： 71M6511-IGT
71M6511/71M6511H
Single-Phase Energy Meter IC
DATA SHEET
NOVEMBER 2010
Page: 83 of 98
2005–2010 Teridian Semiconductor Corporation
V2.7
A Maxim Integrated Products Brand
Optical Interface
The pins OPT_TX and OPT_RX can be used for a regular serial interface, e.g. by connecting a RS_232 transceiver, or they
can be used to directly operate optical components, e.g. an infrared diode and phototransistor implementing a FLAG interface.
Figure 35 shows the basic connections. The OPT_TX pin becomes active when the I/O RAM register OPT_TXDIS is set to 0.
OPT_TX
R
2
R
1
OPT_RX
71M6511
V3P3
Phototransistor
LED
100k
Ω
100pF
V3P3
OPT_TX
R
2
R
1
OPT_RX
71M6511
V3P3
Phototransistor
LED
100k
Ω
100pF
V3P3
Figure 35: Connection for Optical Components
Connecting V1 and Reset Pins
A voltage divider should be used to establish a safe range for V1 when the meter is in mission mode (V1 must be lower than
2.9V in all cases in order to keep the hardware watchdog timer enabled). For proper debugging or loading code into the
71M6511 mounted on a PCB, it is necessary to have a provision like the header shown above R1 in Figure 36. A shorting
jumper on this header pulls V1 up to V3P3, disabling the hardware watchdog timer. C1 helps suppressing ESD.
V
in
R
2
V1
R
1
R
3
10k
Ω
C
1
100pF
V
in
R
2
V1
R
1
R
3
10k
Ω
C
1
100pF
Figure 36: Voltage Divider for V1
Even though a functional meter will not necessarily need a reset switch, it is useful to have a reset pushbutton for prototyping.
When a circuit is used in an EMI environment, the RESETZ pin should be supported by the external components shown in
Figure 37. R1 should be in the range of 200, R2 should be around 10. The capacitor C1 should be 1nF. R1 and C1 should
be mounted as close as possible to the IC. In cases where the trace from the pushbutton switch to the RESETZ pin poses a
problem, R2 can be removed.
相關(guān)PDF資料
PDF描述
71M6511-IGTR 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP64
71M6511H-IGTR/F 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP64
71M6511H-IGT/F 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP64
71M6511H-IGT 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP64
71M6511H-IGTR 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP64
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
71M6511-IGT/F 功能描述:計(jì)量片上系統(tǒng) - SoC Highly Integrated SoC w/MCU Core RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類型:Metering SoC 最大時(shí)鐘頻率:70 Hz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:7 KB 接口類型:UART 可編程輸入/輸出端數(shù)量:12 片上 ADC: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel
71M6511-IGT/F1 功能描述:計(jì)量片上系統(tǒng) - SoC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類型:Metering SoC 最大時(shí)鐘頻率:70 Hz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:7 KB 接口類型:UART 可編程輸入/輸出端數(shù)量:12 片上 ADC: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel
71M6511-IGTR 制造商:TERIDIAN 制造商全稱:TERIDIAN 功能描述:Single-Phase Energy Meter IC
71M6511-IGTR/F 功能描述:計(jì)量片上系統(tǒng) - SoC Highly Integrated SoC w/MCU Core RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類型:Metering SoC 最大時(shí)鐘頻率:70 Hz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:7 KB 接口類型:UART 可編程輸入/輸出端數(shù)量:12 片上 ADC: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel
71M6511-IGTR/F1 功能描述:計(jì)量片上系統(tǒng) - SoC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類型:Metering SoC 最大時(shí)鐘頻率:70 Hz 程序存儲(chǔ)器大小:64 KB 數(shù)據(jù) RAM 大小:7 KB 接口類型:UART 可編程輸入/輸出端數(shù)量:12 片上 ADC: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel
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