参数资料
型号: 71M6511H-IGT/F
厂商: Maxim Integrated
文件页数: 41/98页
文件大小: 0K
描述: IC ENERGY METER RESIDENT 64-LQFP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 160
系列: *
71M6511/71M6511H
Single-Phase Energy Meter IC
A Maxim Integrated Products Brand
DATA SHEET
NOVEMBER 2010
Dedicated Segment Pins
Shared w/ DIO4-DIO11
Shared w/ DIO14-DIO17
SEG0
SEG1
SEG19
SEG24
SEG31
SEG34
SEG37
COM0
COM1
COM2
COM3
P0
P1
P2
P3
P4
P5
P6
P7
P76
P77
P78
P79
P80
P81
P82
P83
P108
P109
P110
P111
P112
P113
P114
P115
...
P124
P125
P126
P127
Table 56: 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).
VOLTAGE
BOOST
LCD_IBST
LCD_BSTEN
GNDD
VDRV
GNDD
V2P5NV
V3P3D
VOLT
REG
0.1V
V2P5
V3P3D
VBAT
GNDD
GNDD
V2P5
VLCD
Figure 10: LCD Voltage Boost Circuitry
UART (UART0) and Optical Port (UART1)
The 71M6511/6511H includes an interface to implement an IR or optical port. The pin OPT_TX is designed to directly drive an
external LED for transmitting data on an optical link (low-active). The pin OPT_RX, also low-active, is designed to sense the
input from an external photo detector used as the receiver for the optical link. These two pins are connected to a dedicated
UART port. OPT_TX can be tristated if it is desired to multiplex another I/O pin to the OPT_TX output. The control bit for the
OPT_TX output is the I/O RAM register OPT_TXDIS (0x2008[5]).
Page: 41 of 98
? 2005–2010 Teridian Semiconductor Corporation
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71M6511-IGT/F1 功能描述:计量片上系统 - SoC 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