DEMO9RS08LA8 (Freescale Semiconductor) Datasheet资料下载 PDF(12/14 页)

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参数资料

D E M O 9 R S 0 8 L A 8

U S E R G U I D E

J A N U A R Y

2 3 ,

2 0 0 8

USB SERIAL LINK

The integrated USB-BDM provides a serial link from the target MCU to the host PC through the

host application. Refer to the P&E Multilink documentation for further details.

LCD

The DEMO9RSO8LA8 provides an 8x21, 168 element, LCD panel connected to the target

MCU. The target MCU provides internal charge-pump and regulated LCD reference. The LCD

contrast is trimmable under MCU control. Refer to the MC9RSO8LA8 Reference

Due to limited IO on the target MCU, several LCD drive signals are multiplexed. Manual for

further details.

USER I/O

User I/O includes 1 buzzer, 2 push button switches, 1 Temperature Sensor, and 1

potentiometer for user I/O. The User1 option header block enables or disables each User I/O

function individually.

Buzzer

The DEMO9RSO8LA8 target board provides an externally modulated piezo-buzzer for audible

applications. A push-pull drive circuit allows the target MCU to easily drive the buzzer at a

center frequency of 2300 Hz. The figure below shows the USER enable position and

associated signal for the buzzer.

Push Button Switches

The DEMO9RSO8LA8 provides 2 push-button switches for user input. Each push-button

switch is configured for active-low operation. No bias is applied to these push-button inputs.

Use of target MCU internal pull-ups is required for proper operation. The figure below shows

the USER enable position and associated signal for each user switch.

Temperature Sensor

A surface-mount thermistor is installed at location RZ1. This component provides a voltage

input to the MCU inversely proportional to temperature. The component used provides a B =

3900.

相关代理商/技术参数	参数描述
DEMO9RS08LE4	功能描述:开发板和工具包 - S08 / S12 LE4 Family Demo Board RoHS:否产品:Development Kits 工具用于评估:MC9S12G128 核心:S12 接口类型:CAN, LIN, RS-232, USB 工作电源电压:5 V 制造商:Freescale Semiconductor
DEMO9RS08SA12	功能描述:开发板和工具包 - S08 / S12 DEMO BOARD FOR SA12 PROD RoHS:否产品:Development Kits 工具用于评估:MC9S12G128 核心:S12 接口类型:CAN, LIN, RS-232, USB 工作电源电压:5 V 制造商:Freescale Semiconductor
DEMO9S08AC60E	功能描述:开发板和工具包 - S08 / S12 DEMO BOARD FOR THE 9S08A RoHS:否产品:Development Kits 工具用于评估:MC9S12G128 核心:S12 接口类型:CAN, LIN, RS-232, USB 工作电源电压:5 V 制造商:Freescale Semiconductor
DEMO9S08AW60E	功能描述:开发板和工具包 - S08 / S12 DEMO BOARD FOR THE 9S08A RoHS:否产品:Development Kits 工具用于评估:MC9S12G128 核心:S12 接口类型:CAN, LIN, RS-232, USB 工作电源电压:5 V 制造商:Freescale Semiconductor
DEMO9S08DZ60	功能描述:开发板和工具包 - S08 / S12 9S08DZ60 DEMO BOARD RoHS:否产品:Development Kits 工具用于评估:MC9S12G128 核心:S12 接口类型:CAN, LIN, RS-232, USB 工作电源电压:5 V 制造商:Freescale Semiconductor

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