參數(shù)資料
型號： 71M6543G-IGT/F
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 模擬信號調(diào)理
英文描述： SPECIALTY ANALOG CIRCUIT, PQFP100
封裝： LEAD FREE, LQFP-100
文件頁數(shù)： 104/157頁
文件大小： 2178K
代理商： 71M6543G-IGT/F
71M6543F/H and 71M6543G/GH Data Sheet
50
2008–2011 Teridian Semiconductor Corporation
v1.2
Although the oscillator may appear to work when VBAT is not connected, this mode of operation is not re-
commended.
If VBAT_RTC is connected to a drained battery or disconnected, a battery test that sets
TEMP_BAT may drain the supply connected to VBAT_RTC and cause the oscillator to stop. A
stopped oscillator may force the device to reset. Therefore, an unexpected reset during a battery
test should be interpreted as a battery failure.
2.5.3
PLL and Internal Clocks
Timing for the device is derived from the 32.768 kHz crystal oscillator output that is multiplied by a PLL by
600 to obtain 19.660800 MHz, the master clock (MCK). All on-chip timing, except for the RTC clock, is
derived from MCK. Table 42 provides a summary of the clock functions and their controls.
The two general-purpose counter/timers contained in the MPU are controlled by CKMPU (see 2.4.7
The master clock can be boosted to 19.66 MHz by setting the PLL_FAST bit = 1 (I/O RAM 0x2200[4]) and
can be reduced to 6.29 MHz by PLL_FAST = 0. The MPU clock frequency CKMPU is determined by
another divider controlled by the I/O RAM control field MPU_DIV[2:0] (I/O RAM 0x2200[2:0]) and can be
set to MCK*2
-(MPU_DIV+2) where MPU_DIV[2:0] may vary from 0 to 4. When the ICE_E pin is high, the
circuit also generates the 9.83 MHz clock for use by the emulator.
The PLL is only turned off in SLP mode or in LCD mode when LCD_BSTE is disabled. The LCD_BSTE
value depends on the setting of the LCD_VMODE [1:0] field (see Table 52).
When the part is waking up from SLP or LCD modes, the PLL is turned on in 6.29 MHz mode, and the
PLL frequency is not be accurate until the PLL_OK (SFR 0xF9[4]) flag rises. Due to potential overshoot, the
MPU should not change the value of PLL_FAST until PLL_OK is true.
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相關代理商/技術參數(shù)
參數(shù)描述
71M6543G-IGTR/F 功能描述:計量片上系統(tǒng) - SoC Precision Energy Meter IC 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(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: 安裝風格:SMD/SMT 封裝 / 箱體:LQFP-64 封裝:Reel
71M6543GT-IGT/F 制造商:Maxim Integrated Products 功能描述:3-PHASE, 128KK, PRES TEMP SENSOR - Bulk
71M6543GT-IGTR/F 制造商:Maxim Integrated Products 功能描述:3-PHASE, 128KK, PRES TEMP SENSOR - Tape and Reel
71M6543H 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:Selectable Gain of 1 or 8 for One Current Energy Meter ICs Metrology Compensation
71M6543H-IGT/F 功能描述:IC ENERGY METER 100-LQFP 制造商:maxim integrated 系列:Single Converter Technology? 包裝:托盤 零件狀態(tài):停產(chǎn) 輸入阻抗:- 測量誤差:0.1% 電壓 - I/O 高:2V 電壓 - I/O 低:0.8V 電流 - 電源:- 電壓 - 電源:3 V ~ 3.6 V 表計類型:3 相 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:100-LQFP 供應商器件封裝:100-LQFP（14x14） 標準包裝:90
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