参数资料
型号: DM163030
厂商: Microchip Technology
文件页数: 51/66页
文件大小: 0K
描述: KIT DEV PICDEM LCD2
产品培训模块: Asynchronous Stimulus
8-bit PIC® Microcontroller Portfolio
标准包装: 1
系列: PICDEM™
类型: MCU
适用于相关产品: PIC18F8493
所含物品: 评估板
产品目录页面: 659 (CN2011-ZH PDF)
相关产品: MA180027-ND - MOD PLUG-IN PIC18F87K90 PICDEM2
MA180025-ND - MODULE PLUG-IN PIC18F87J90 PIM
PIC18F8493T-I/PTTR-ND - IC PIC MCU FLASH 8KX16 80TQFP
PIC18F8493-I/PT-ND - IC PIC MCU FLASH 8KX16 80TQFP
MA180019-ND - MODULE PLUG-IN PICDEM LCD2
MA180022-ND - MODULE PLUG-IN PICDEM LCD2 85J90
Board Technical Information
As stated previously, R25 = 1K and R26 = 330. You can see that without R102 and
R101, V OUT = 1.25V(1+ 1K/330R) = 5.04V.
For a desired V OUT , first solve for R2, given R1 = R26 = 330R. Then, knowing R2 and
R25, solve for R102. Determine the nearest available resistor value for R102 and
recalculate the resulting V DD to make sure it does not exceed the maximum V DD for the
part you will be using.
Table A-23 shows values for R101 and R102 for different V DD values, assuming that
R25 and R26 on the PICDEM LCD 2 Board are left as their default values of 1K and
330R.
TABLE A-23:
R101 AND R102 V DD VALUES
V DD
5V
3.6V
3.3V
3.0V
R101
Open
Open
Open
Open
R102
Open
1.62K
1.18K
866R
Recommended operating voltages for the various PIMs are:
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?
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PIC18F85J90 and PIC18F87J90 families of devices – 3.3V
PIC18F8490 family of devices – 5V
PIC16F917/914 devices – 5V
PIC16F946 – 5V (when operating on an external 9V DC supply)
PIC16F1946/7 – 5V
PIC16LF1946/7 – 3.3V
A.14.2
Slide Switch (S6)
The slide switch allows choosing the BIAS values, either generated by the resistor
ladder, or by the capacitive charge pump. When S6 is switched to the left, the LCDBIAS
pins of the microcontroller are connected to the resistor ladder. When S6 is switched to
the right, the LCDBIAS pins of the microcontroller are connected to the capacitor
network.
? 2010 Microchip Technology Inc.
DS51662C-page 51
相关PDF资料
PDF描述
DM163035 KIT DEVELOPMENT PICDEM LAB
DM164120-1 BOARD DEMO PICKIT 2 LP COUNT
DM164120-3 BOARD DEMO PICKIT2 28-PIN
DM164120-5 BOARD DEMO PICKIT 2 64/80-PIN
DM164123 KIT MANAGEMENT SYSTEM PICDEM
相关代理商/技术参数
参数描述
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