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参数资料
| 型号： | 71M6513-IGTR/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： | 43/104页 |
| 文件大小： | 1390K |
| 代理商： | 71M6513-IGTR/F |
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71M6513/71M6513H
3-Phase Energy Meter IC
DATA SHEET
SEPTEMBER 2011
2005-2011 Teridian Semiconductor Corporation
Page: 43 of 104
A Maxim Integrated Products Brand
LCD Drivers
The 71M6513 contains 24 dedicated LCD segment drivers and 18 multi-purpose pins which may be configured as additional
LCD segment drivers (see I/O RAM register LCD_NUM). The 71M6513/6513H is capable of driving between 96 to 168 pixels
of LCD display with 25% duty cycle. At seven segments per digit, the LCD can be designed for 13 to 24 digits for display.
Since each pixel is addressed individually, the LCD display can be a combination of alphanumeric digits and enunciator
symbols. The information to be displayed is written into the lower four bits of I/O RAM registers LCD_SEG0 through
LCD_SEG41. Bit 0 corresponds to the segment selected when COM0 pin is active while bit 1 is allocated to COM1.
The LCD driver circuitry is grouped into 4 common outputs (COM0 to COM3) and up to 42 segment outputs (see Table 55).
The typical LCD map is shown below.
SEG0
SEG1
SEG2
SEG3
…
SEG27
…
SEG41
COM0
P0
P4
P8
P12
...
P108
...
P164
COM1
P1
P5
P9
P13
…
P109
...
P165
COM2
P2
P6
P10
P14
...
P110
...
P166
COM3
P3
P7
P11
P15
...
P111
...
P167
Table 55: Liquid Crystal Display Segment Table (Typical)
Note: P0, P1, … Represent the pixel/segment numbers on the LCD.
A charge pump suitable for driving VLCD is included on-chip. This circuit creates 5V from the 3.3V supply. A contrast DAC is
provided that permits the LCD full-scale voltage to be adjusted between VLCD and 70% of VLCD. The LCD_NUM register
defines the number of dual purpose pins used for LCD segment interface.
LCD Voltage Boost Circuitry
A voltage boost circuit may be used to generate 5V from the 3.3V supply to support low-power 5V devices, such as LCDs.
Figure 10 shows a block diagram of the voltage boost circuitry including the voltage regulators for V2P5 and V2P5NV. When
activated using the I/O RAM register LCD_BSTEN (0x2020[7]), the boost circuitry provides an AC voltage at the VDRV output
pin (see the Applications section for details).
Figure 10: LCD Voltage Boost Circuitry
GNDD
V3P3D
VBAT
VOLT
REG
0.1V
V2P5
VLCD
VDRV
VOLTAGE
BOOST
LCD_BSTEN
LCD_IBST
GNDD
V2P5
V3P3D
V2P5NV
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相关代理商/技术参数 |
参数描述 |
|---|---|
| 71M6515H | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Energy Meter IC |
| 71M6515H_11 | 制造商:TERIDIAN 制造商全称:TERIDIAN 功能描述:Up to 10ppmC precision ultra-stable voltage reference Digital temperature compensation |
| 71M6515H-DB | 功能描述:开发板和工具包 - 8051 71M6515H Demo Brd RoHS:否 制造商:Silicon Labs 产品:Development Kits 工具用于评估:C8051F960, Si7005 核心: 接口类型:USB 工作电源电压: |
| 71M6515H-IGT | 制造商:Maxim Integrated Products 功能描述:METERING FRONT END - Rail/Tube |
| 71M6515H-IGT/F | 功能描述:计量片上系统 - SoC 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 |
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