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參數資料
| 型號： | 71M6511-IGTR |
| 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： | 48/98頁 |
| 文件大小： | 1278K |
| 代理商： | 71M6511-IGTR |
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71M6511/71M6511H
Single-Phase Energy Meter IC
DATA SHEET
NOVEMBER 2010
Page: 52 of 98
2005–2010 Teridian Semiconductor Corporation
V2.7
A Maxim Integrated Products Brand
Power-Up: After power-up, the 71M6511/6511H is in reset as long as V1 < VBIAS. As soon as V1 exceeds VBIAS, the reset
timer is started which takes the MPU out of reset after 4100 oscillator cycles (see Figure 20). The MPU then initiates its pre-
boot phase lasting 32 cycles. The supply current will be low but not zero during power-up. It will increase, once V1 exceeds
VBIAS and will increase to the nominal value once the preboot phase starts. The supply current may then be reduced under
firmware control, following the steps specified in Battery Operation and Power Save Modes.
V3P3
V1
SUPPLY CURRENT
3.3V
1.5V
PRE-
BOOT
RESET TIMER
FIRMWARE HAS CONTROL OVER CHIP...
1ms
0V
V2P5
POWER
DOWN
V1 > VBIAS
PWR
UP
0mA
nominal
125ms
Figure 20: Timing Diagram for Voltages, Current and Operation Modes after Power-Up
Battery Operation
When V1 is lower than VBIAS, the external battery will power the following parts of the 71M6511/6511H:
RTC
Crystal oscillator circuitry
MPU XRAM
WD_OVF bit
Power Save Modes
In normal mode of operation, running on 3.3V supply, various resources of the 71M6511/6511H may be shut down by the
MPU firmware in order to reduce power consumption while other essential resources such as UARTs may remain active.
Table 60 outlines these resources and their typical current consumption (based on initial condition MPU_DIV = 0).
Power Saving Measure
Software Control
Typical
Savings
Disable the CE
CE_EN = 0
0.16mA
Disable the ADC
ADC_DIS = 1
1.8mA
Disable clock test output CKTEST
CKOUTDIS = 1
0.6mA
Disable emulator clock
ECK_DIS = 1 *)
0.1mA
Set flash read pulse timing to 33 ns
FLASH66Z =1
0.04mA
Disable the LCD voltage boost circuitry
LCD_BSTEN = 0
0.9mA
Disable RTM outputs
RTM_EN = 0
0.01mA
Increase the clock divider for the MPU
MPU_DIV = X
0.4mA/MHz
*) This bit is to be used with caution! Inadvertently setting this bit will inhibit access to the part with the ICE interface and thus
preclude flash erase and programming operations.
Table 60: Power Saving Measures
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| 71M6511H-IGT/F | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP64 |
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| 71M6521DE-IGTR/F | SPECIALTY ANALOG CIRCUIT, QFP64 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 71M6511-IGTR/F | 功能描述:計量片上系統 - 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 最大時鐘頻率:70 Hz 程序存儲器大小:64 KB 數據 RAM 大小:7 KB 接口類型:UART 可編程輸入/輸出端數量:12 片上 ADC: 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel |
| 71M6511-IGTR/F1 | 功能描述:計量片上系統 - SoC RoHS:否 制造商:Maxim Integrated 核心:80515 MPU 處理器系列:71M6511 類型:Metering SoC 最大時鐘頻率:70 Hz 程序存儲器大小:64 KB 數據 RAM 大小:7 KB 接口類型:UART 可編程輸入/輸出端數量:12 片上 ADC: 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel |
| 71M6512-DB | 制造商:Maxim Integrated Products 功能描述:Development Boards & Kits - 8051 71M6512 Demo Brd |
| 71M6512-IM/F | 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Residential Meter Extended Io |
| 71M6512-IMR/F | 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Residential Meter Extended Io |
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