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參數資料
型號: 71M6521FE-IGTR/F
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: 模擬信號調理
英文描述: SPECIALTY ANALOG CIRCUIT, QFP64
封裝: LEAD FREE, LQFP-64
文件頁數: 41/103頁
文件大小: 1691K
代理商: 71M6521FE-IGTR/F
71M6521DE/71M6521FE
Energy Meter IC
DATA SHEET
OCTOBER 2010
Page: 42 of 103
2005-2010 Teridian Semiconductor Corporation
v1.1
A Maxim Integrated Products Brand
19-5370; 10/10
Recommended
R
LED
DIO1
V3P3D
71M6521
V3P3SYS
DGND
VBAT
3.3V
Recommended
R
LED
DIO1
V3P3D
71M6521
V3P3SYS
DGND
VBAT
3.3V
The PB pin is a dedicated digital input. In addition, if the optical UART is not used, OPT_TX and OPT_RX can be configured
as dedicated DIO pins. Thus, in addition to the 16 general-purpose DIO pins (DIO4…DIO11, DIO14…DIO21), there are three
additional pins that can be used for digital input and output.
Not recommended
71M6521
DIO1
R
V3P3D
LED
V3P3SYS
3.3V
DGND
VBAT
71M6521
DIO1
R
V3P3D
LED
V3P3SYS
3.3V
DGND
VBAT
Figure 8: Connecting an External Load to DIO Pins
DIO_R Value
Resource Selected for DIO Pin
0
NONE
1
Reserved
2
T0 (counter0 clock)
3
T1 (counter1 clock)
4
High priority I/O interrupt (INT0 rising)
5
Low priority I/O interrupt (INT1 rising)
6
High priority I/O interrupt (INT0 falling)
7
Low priority I/O interrupt (INT1 falling)
Table 56: Selectable Controls using the DIO_DIR Bits
LCD Drivers
The device in the 68-pin QFN package contains 20 dedicated LCD segment drivers in addition to the 18 multi-use pins
described above. Thus, the device is capable of driving between 80 to 152 pixels of LCD display with 25% duty cycle (or 60 to
114 pixels with 33% duty cycle). At eight pixels per digit, this corresponds to 10 to 19 digits.
The device in the 64-pin LQFP package contains 20 dedicated LCD segment drivers in addition to the 15 multi-use pins
described above. Thus, the device is capable of driving between 80 to 140 pixels of LCD display with 25% duty cycle (or 60 to
105 pixels with 33% duty cycle). At eight pixels per digit, this corresponds to 10 to 17 digits.
The LCD drivers are grouped into four commons and up to 38 segment drivers (68-pin package), or 4 commons and 35
segment drivers (64-pin package). The LCD interface is flexible and can drive either digit segments or enunciator symbols.
Segment drivers SEG18 and SEG19 can be configured to blink at either 0.5Hz or 1Hz. The blink rate is controlled by LCD_Y.
There can be up to four pixels/segments connected to each of these drivers. LCD_BLKMAP18[3:0] and LCD_BLKMAP19[3:0]
identify which pixels, if any, are to blink.
相關PDF資料
PDF描述
71M6521DE-IMR/F SPECIALTY ANALOG CIRCUIT, QCC68
71M6521FE-IM/F SPECIALTY ANALOG CIRCUIT, QCC68
71M6521FE-IGT/F SPECIALTY ANALOG CIRCUIT, QFP64
71M6531D-IMR/F 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, QCC68
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相關代理商/技術參數
參數描述
71M6521FE-IM 制造商:Maxim Integrated Products 功能描述:Metering Systems on a Chip - SoC Residential Energy Meter IC
71M6521FE-IM/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
71M6521FEIM-DB 制造商:Maxim Integrated Products 功能描述:Development Boards & Kits - 8051 71M6521FE Demo Brd
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 - 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
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