参数资料
型号: 71M6531D-IMR/F
厂商: Maxim Integrated
文件页数: 82/121页
文件大小: 0K
描述: IC ENERGY METER 128KB 68-QFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
系列: *
Data Sheet 71M6531D/F-71M6532D/F
FDS 6531/6532 005
Name
Location
Reset
Wake
Dir
Description
LCD contrast control DAC. Adjusts the LCD voltage in steps of 0.2 V from V3P3SYS
(mission mode) or VBAT (BROWNOUT/LCD modes).
LCD_DAC[2:0]
000
001
Resulting LCD Voltage
V3P3 or VBAT
V3P3 or VBAT – 0.2V
LCD_DAC[2:0]
20AB[3:1]
0
L
R/W
010
V3P3 or VBAT – 0.4V
011
100
101
110
111
V3P3 or VBAT – 0.6V
V3P3 or VBAT – 0.8V
V3P3 or VBAT – 1.0V
V3P3 or VBAT – 1.2V
V3P3 or VBAT – 1.4V
LCD_E
2021[5]
0
L
R/W
Enables the LCD display. When disabled, VLC2, VLC1 and VLC0 are ground as are
the COM and SEG outputs.
The LCD bias mode. Use the LCD DAC in ANACTRL to reduce saturation. The number
o f states is the numbe     r of commons which are driven to multiplex the LCD.
LCD_MODE[2:0]
Function
Notes
LCD_MODE[2:0] 2021[4:2]
0
L
R/W
000
001
4 states, ? bias
3 states, ? bias
? bias modes can drive 3.3 V LCDs.
010
011
100
2 states, ? bias
3 states, ? bias
static display
? bias and static modes can drive
both 3.3 V and 5 V LCDs.
LCD_ONLY
LCD_SEG0[3:0]
LCD_SEG19[3:0]
LCD_SEG24[3:0]
LCD_SEG31[3:0]
20A9[5]
2030[3:0]
2043[3:0]
2048[3:0]
204F[3:0]
0
0
0
0
0
0
L
L
L
L
W
R/W
R/W
R/W
R/W
Puts the part to sleep, but with the LCD display still active. LCD_ONLY is ignored if
system power is present. While in SLEEP mode, the device will wake up on reset,
when the autowake timer times out, when the push button is pushed, or when system
power returns.
LCD Segment Data. Each word contains information for 1 to 4 time divisions of each
segment. Some addresses are used to address two segments.
In each word, bit 0 corresponds to COM0, bit 1 to COM1, bit 2 to COM2 and bit 3 to
COM3 of the first segment. Bits 4 through 7 correspond to COM0 to COM3, respec-
tively, of the second segment.
LCD_SEG32[3:0] 2050[3:0]
0
L
R/W
Care should be taken when writing to LCD_SEG locations since some of them control
DIO pins.
82
Rev 2
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