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| 型號： | 71M6521FE-IM/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, QCC68 |
| 封裝： | LEAD FREE, LQFN-68 |
| 文件頁數(shù)： | 78/103頁 |
| 文件大?。?/td> | 1691K |
| 代理商： | 71M6521FE-IM/F |
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71M6521DE/71M6521FE
Energy Meter IC
DATA SHEET
OCTOBER 2010
Page: 76 of 103
2005-2010 Teridian Semiconductor Corporation
v1.1
A Maxim Integrated Products Brand
19-5370; 10/10
LCD_BLKMAP19[3:0]
LCD_BLKMAP18[3:0]
205A[7:4]
205A[3:0]
0
--
R/W
Identifies which segments connected to SEG18 and SEG19 should
blink. 1 means ‘blink.’ Most significant bit corresponds to COM3.
Least significant, to COM0.
LCD_CLK[1:0]
2021[1:0]
0
--
R/W
Sets the LCD clock frequency (for COM/SEG pins, not frame rate).
Note: fw = 32768Hz
00: fw/2
9, 01: f
w/2
8, 10: f
w/2
7, 11: f
w/2
6
LCD_E
2021[5]
0
--
R/W
Enables the LCD display. When disabled, VLC2, VLC1, and VLC0
are ground as are the COM and SEG outputs.
LCD_MODE[2:0]
2021[4:2]
0
--
R/W
The LCD bias mode.
000: 4 states, 1/3 bias
001: 3 states, 1/3 bias
010: 2 states, bias
011: 3 states, bias
100: static display
LCD_NUM[4:0]
2020[4:0]
0
--
R/W
Number of dual-purpose LCD/DIO pins to be configured as LCD.
This will be a number between 0 and 18. The first dual-purpose pin
to be allocated as LCD is SEG41/DIO21. Thus if LCD_NUM=2,
SEG41 and SEG 40 will be configured as LCD. The remaining
SEG39 to SEG24 will be configured as DIO19 to DIO4.
DIO1 and DIO2 (plus DIO3 on the QFN-68 package) are always
available, if not used for the optical port.
See tables in Application Section.
LCD_ONLY
20A9[5]
0
W
Takes the 6521FE/DE to LCD mode. Ignored if system power is
present. The part will awaken when autowake timer times out, when
push button is pushed, or when system power returns.
LCD_SEG0[3:0]
…
LCD_SEG19[3:0]
2030[3:0]
…
2043[3:0]
0
…
0
--
…
--
R/W
LCD Segment Data. Each word contains information for from 1 to 4
time divisions of each segment. In each word, bit 0 corresponds to
COM0, on up to bit 3 for COM3.
These bits are preserved in LCD and SLEEP modes,
even if their pin is not configured as SEG. In this case,
they can be useful as general-purpose non-volatile
storage.
LCD_SEG24[3:0]
…
LCD_SEG38[3:0]
2048[3:0]
…
2056[3:0]
0
…
0
--
…
--
R/W
LCD_Y
2021[6]
0
R/W
LCD Blink Frequency (ignored if blink is disabled or if segment is
off).
0: 1Hz (500ms ON, 500ms OFF)
1: 0.5Hz (1s ON, 1s OFF)
MPU_DIV[2:0]
2004[2:0]
0
R/W
The MPU clock divider (from 4.9152MHz). These bits may be pro-
grammed by the MPU without risk of losing control.
000-4.9152MHz, 001-4.9152MHz /2
1, …, 111-4.9152MHz /27
MPU_DIV remains unchanged when the part enters BROWNOUT
mode.
MUX_ALT
2005[2]
0
R/W
The MPU asserts this bit when it wishes the MUX to perform ADC
conversions on an alternate set of inputs.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 71M6521FE-IMR | 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Residential Energy Meter IC |
| 71M6521FE-IMR/F | 功能描述:計量片上系統(tǒng) - 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(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 |
| 71M6521-TGP1-68M | 制造商:Maxim Integrated Products 功能描述:Programmer Accessories Gang Programmer Base w/6521 Socket Brd |
| 71M6523-DB | 功能描述:開發(fā)板和工具包 - 8051 71M6521D Demo Brd RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評估:C8051F960, Si7005 核心: 接口類型:USB 工作電源電壓: |
| 71M6523-IM | 功能描述:計量片上系統(tǒng) - 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(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 |
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