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參數資料
| 型號： | 71M6532D-IGT/F |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP100 |
| 封裝： | LEAD FREE, LQFP-100 |
| 文件頁數： | 51/120頁 |
| 文件大?。?/td> | 2477K |
| 代理商： | 71M6532D-IGT/F |
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Data Sheet 71M6531D/F-71M6532D/F
FDS 6531/6532 005
36
2005-2010 TERIDIAN Semiconductor Corporation
v1.3
1.5
On-Chip Resources
1.5.1
Oscillator
The oscillator of the 71M6531D/F and 71M6532D/F drives a standard 32.768 kHz watch crystal. These
crystals are accurate and do not require a high-current oscillator circuit. The oscillator of the 71M6531D/F
and 71M6532D/F has been designed specifically to handle these crystals and is compatible with their
high impedance and limited power handling capability.
Oscillator calibration can improve the accuracy of both the RTC and metering. Refer to Section 1.5.3
Real-Time Clock (RTC) for more information.
The oscillator is powered directly and only from VBAT, which therefore must be connected to a DC voltage
source. The oscillator requires approximately 100 nA, which is negligible compared to the internal leakage
of a battery.
The oscillator may appear to work when VBAT is not connected, but this mode of operation is not
recommended.
If VBAT is connected to a drained battery or disconnected, a battery test that sets BME may drain
VBAT’s supply 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.
1.5.2
Internal Clocks
Timing for the device is derived from the 32.768 kHz crystal oscillator output. On-chip timing functions
include:
The MPU clock (CKMPU)
The emulator clock (2 x CKMPU)
The clock for the CE (CKCE)
The clock driving the delta-sigma ADC along with the FIR (CKADC, CKFIR)
A real time clock (RTC).
The two general-purpose counter/timers contained in the MPU are controlled by CKMPU (see Section
1.4.7 Timers and Counters). Table 37 provides a summary of the available clock functions.
Table 37: Clock System Summary
Clock
Derived
From
MCK Divider / [M40MHZ, M26MHZ]
Brownout
Mode
÷2 / [1,0]
÷3 / [0,1]
÷4** / [0,0]
CKPLL
Crystal
78.6432 MHz
78.6432
MHz
78.6432
MHz
off
MCK
CKPLL
39.3216 MHz
26.2144
MHz
19.6608
MHz
112 kHz
CKCE
MCK
4.9152
MHz
9.8304
MHz
6.5536MHz
4.9152 MHz
off
CKADC / CKFIR
MCK
4.9152 MHz
6.5536 MHz
4.9152 MHz
28 kHz
CKMPU maximum
MCK
9.8304 MHz
***
6.5536 MHz
***
4.9152 MHz
***
28 kHz
CK32
MCK
32.768 kHz
** Default state at power-up
*** The maximum CKMPU frequency. CKMPU can be reduced from this rate using MPU_DIV[2:0].
CKCE = 9.8304 MHz when CE10MHZ is set, 4.9152 MHz otherwise.
The master clock, MCK, is generated by an on-chip PLL that multiplies the oscillator output frequency
(CK32) by 2400 to provide approximately 80 MHz (78.6432 MHz). A divider controlled by the I/O RAM
bits M40MHZ and M26MHZ permits scaling of MCK by ,
and . All other clocks are derived from this
scaled MCK output (making them multiples of 32768 Hz), and the clock skew is matched so that the rising
edges of CKADC, CKCE, CK32 and CKMPU are aligned.
相關PDF資料 |
PDF描述 |
|---|---|
| 71M6531D-IMR/F | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC68 |
| 71M6532F-IGTR/F | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP100 |
| 71M6532D-IGT/F | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP100 |
| 71M6531D-IM/F | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC68 |
| 71M6532F-IGTR/F | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, PQFP100 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 71M6532D-IGTR/F | 功能描述:計量片上系統 - SoC Residential 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 |
| 71M6532D-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 |
| 71M6532F | 制造商:TERIDIAN 制造商全稱:TERIDIAN 功能描述:Energy Meter IC |
| 71M6532F-IGT/F | 功能描述:計量片上系統 - SoC Residential 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 |
| 71M6532F-IGT/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 |
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