- 您现在的位置：买卖IC网 > PDF目录68811 > 71M6543F-IGT/F (MAXIM INTEGRATED PRODUCTS INC) SPECIALTY ANALOG CIRCUIT, PQFP100 PDF资料下载
参数资料
| 型号： | 71M6543F-IGT/F |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PQFP100 |
| 封装： | LEAD FREE, LQFP-100 |
| 文件页数： | 102/157页 |
| 文件大小： | 2178K |
| 代理商： | 71M6543F-IGT/F |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页当前第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页第121页第122页第123页第124页第125页第126页第127页第128页第129页第130页第131页第132页第133页第134页第135页第136页第137页第138页第139页第140页第141页第142页第143页第144页第145页第146页第147页第148页第149页第150页第151页第152页第153页第154页第155页第156页第157页
71M6543F/H and 71M6543G/GH Data Sheet
v1.2
2008–2011 Teridian Semiconductor Corporation
49
FLSH_UNLOCK[3:0]. FLSH_UNLOCK[3:0] is not automatically reset. It should be cleared when the SPI or
ICE has finished changing the Flash. Table 41 summarizes the I/O RAM registers used for flash security.
Table 41: Flash Security
Name
Location
Rst
Wk
Dir
Description
FLSH_UNLOCK[3:0]
2702[7:4]
0
R/W
Must be a 2 to enable any flash modification.
See the description of Flash security for
more details.
SECURE
SFR B2[6]
0
R/W
Inhibits erasure of page 0 and flash addresses
above the beginning of CE code as defined
by CE_LCTN[6/5:0](I/O RAM 0x2109[5:0]) on
the 71M6543F/H and CE_LCTN[6:0] I/O
RAM 0x2109[6:0]) on the 71M6543G/GH.
Also inhibits the read of flash via the ICE
and SPI ports.
SPI Flash Mode
In normal operation, the SPI slave interface cannot read or write the flash memory. However, the
71M6543 contains a Special Flash Mode (SFM) that facilitates initial (production) programming of the
flash memory. When the 71M6543 is in SFM mode, the SPI interface can erase, read, and write the
flash. Other memory elements such as XRAM and I/O RAM are not accessible to the SPI in this mode.
In order to protect the flash contents, several operations are required before the SFM mode is successfully
invoked.
When the 71M6543G/GH is operating SFM, SPI single-byte transactions are used to write to
FL_BANK[1:0] (SFR 0xB6[1:0]). During an SPI single-byte transaction, SPI_CMD[1:0] will over-write the
contents of FL_BANK[1:0] (SFR 0xB6[1:0]). This will allow for access of the entire 128 KB flash memory
while operating in SFM.
Details on the SFM can be found in 2.5.12 SPI Slave Port.
2.5.1.2 MPU/CE RAM
The 71M6543 includes 5 KB of static RAM memory on-chip (XRAM) plus 256 bytes of internal RAM in the
MPU core. The 5KB of static RAM are used for data storage by both MPU and CE and for the
communication between MPU and CE.
2.5.1.3 I/O RAM (Configuration RAM)
The I/O RAM can be seen as a series of hardware registers that control basic hardware functions. I/O
RAM address space starts at 0x2000. The registers of the I/O RAM are listed in Table 69.
The 71M6543 includes 128 bytes non-volatile RAM memory on-chip in the I/O RAM address space
(addresses 0x2800 to 0x287F). This memory section is supported by the voltage applied at VBAT_RTC,
and the data in it are preserved in BRN, LCD, and SLP modes as long as the voltage at VBAT_RTC is
within specification.
2.5.2
Oscillator
The 71M6543 oscillator drives a standard 32.768 kHz watch crystal. This type of crystal is accurate and
does not require a high-current oscillator circuit. The oscillator has been designed specifically to handle
watch crystals and is compatible with their high impedance and limited power handling capability. The
oscillator power dissipation is very low to maximize the lifetime of any battery attached to VBAT_RTC.
Oscillator calibration can improve the accuracy of both the RTC and metering. Refer to 2.5.4, Real-Time
Clock (RTC) for more information.
The oscillator is powered from the V3P3SYS pin or from the VBAT_RTC pin, depending on the V3OK
internal bit (i.e., V3OK = 1 if V3P3SYS
≥ 2.8 VDC and V3OK = 0 if V3P3SYS < 2.8 VDC). The oscillator
requires approximately 100 nA, which is negligible compared to the internal leakage of a battery.
相关PDF资料 |
PDF描述 |
|---|---|
| 71M6543H-IGTR/F | SPECIALTY ANALOG CIRCUIT, PQFP100 |
| 71M6543F-IGTR/F | SPECIALTY ANALOG CIRCUIT, PQFP100 |
| 71M6543H-IGT/F | SPECIALTY ANALOG CIRCUIT, PQFP100 |
| 71M6543G-IGTR/F | SPECIALTY ANALOG CIRCUIT, PQFP100 |
| 71M6543GH-IGTR/F | SPECIALTY ANALOG CIRCUIT, PQFP100 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6543F-IGTR/F | 功能描述:计量片上系统 - SoC Precision Energy Meter IC 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 |
| 71M6543FT-IGT/F | 制造商:Maxim Integrated Products 功能描述:ENERGY METER ICS - Rail/Tube |
| 71M6543FT-IGTR/F | 制造商:Maxim Integrated Products 功能描述:3-PHASE SOC, 64KB FLASH, PRES TEMP SENSOR - Tape and Reel |
| 71M6543G | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Selectable Gain of 1 or 8 for One Current Energy Meter ICs Metrology Compensation |
| 71M6543GH | 制造商:未知厂家 制造商全称:未知厂家 功能描述:电表IC |
发布紧急采购，3分钟左右您将得到回复。