收藏本站
参数资料
型号： MC68HC705SR3PE
厂商： Freescale Semiconductor
文件页数： 20/96页
文件大小： 0K
描述： IC MCU 3.75K 2.1MHZ OTP 40-DIP
标准包装： 9
系列： HC05
核心处理器： HC05
芯体尺寸： 8-位
速度： 4MHz
外围设备： LED，POR
输入/输出数： 32
程序存储器容量： 3.75KB（3.75K x 8）
程序存储器类型： OTP
RAM 容量： 192 x 8
电压 - 电源 (Vcc/Vdd)： 3 V ~ 5.5 V
数据转换器： A/D 4x8b
振荡器型： 内部
工作温度： 0°C ~ 70°C
封装/外壳： 40-DIP（0.600"，15.24mm）
包装： 管件
MC68HC05SR3
Freescale
3-1
INPUT/OUTPUT PORTS
3
INPUT/OUTPUT PORTS
The MC68HC05SR3 has 32 bidirectional I/O lines, arranged as four 8-bit I/O ports (Port A, B, C,
and D). The individual bits in these ports are programmable as either inputs or outputs under
software control by the Data Direction Registers (DDRs). All port pins each has an associated
20K
pull-up resistor, which can be connected/disconnected under software control. Also, each
port pin is capable of sinking and driving a maximum current of 10mA (e.g. direct drive for LEDs).
Port A can also be configured for keyboard interrupts.
3.1
Parallel Ports
Port A, B, C, and D are 8-bit bidirectional ports. Each Port pin is controlled by the corresponding
bits in a Data Direction Register and a Data Register as shown in Figure 3-1. The functions of the
I/O pins are summarized in Table 3-1.
3.1.1
Port Data Registers
Each Port I/O pin has a corresponding bit in the Port Data Register. When a Port I/O pin is
programmed as an output the state of the corresponding data register bit determines the state of
the output pin. All Port I/O pins can drive a current of 10mA when programmed as outputs. When
a Port pin is programmed as an input, any read of the Port Data Register will return the logic state
of the corresponding I/O pin. The locations of the Data Registers for Port A, B, C, and D are at
$00, $01, $02, and $03 respectively. The Port Data Registers are unaffected by reset.
Table 3-1 I/O Pin Functions
R/W
DDR
I/O Pin Function
0
The I/O pin is in input mode. Data is written into the output data latch.
0
1
Data is written into the output data latch and output to the I/O pin.
1
0
The state of the I/O pin is read.
1
The I/O pin is in an output mode. The output data latch is read.
TPG
25
05SR3.Book Page 1 Thursday, August 4, 2005 1:08 PM
相关PDF资料
PDF描述
VI-B5L-CU-F4 CONVERTER MOD DC/DC 28V 200W
VI-B5L-CU-F1 CONVERTER MOD DC/DC 28V 200W
MC68711E20MFNE2 IC MCU 8BIT 52-PLCC
VI-B5K-CU-F2 CONVERTER MOD DC/DC 40V 200W
VI-B5B-CU-F2 CONVERTER MOD DC/DC 95V 200W
相关代理商/技术参数
参数描述
MC68HC706P6ACDW 制造商:Motorola Inc 功能描述:
MC68HC708MP16CFU 制造商:MAJOR 功能描述:
MC68HC711D3CFBE2 制造商:Freescale Semiconductor 功能描述:
MC68HC711D3CFN2 功能描述:IC MCU 2MHZ 4K OTP 44-PLCC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器， 系列:HC11 其它有关文件:STM32F101T8 View All Specifications 特色产品:STM32 32-bit Cortex MCUs 标准包装:490 系列:STM32 F1 核心处理器:ARM? Cortex?-M3 芯体尺寸:32-位 速度:36MHz 连通性:I²C，IrDA，LIN，SPI，UART/USART 外围设备:DMA，PDR，POR，PVD，PWM，温度传感器，WDT 输入/输出数:26 程序存储器容量:64KB（64K x 8） 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:10K x 8 电压 - 电源 (Vcc/Vdd):2 V ~ 3.6 V 数据转换器:A/D 10x12b 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:36-VFQFN，36-VFQFPN 包装:托盘 配用:497-10030-ND - STARTER KIT FOR STM32497-8853-ND - BOARD DEMO STM32 UNIV USB-UUSCIKSDKSTM32-PL-ND - KIT IAR KICKSTART STM32 CORTEXM3497-8512-ND - KIT STARTER FOR STM32F10XE MCU497-8505-ND - KIT STARTER FOR STM32F10XE MCU497-8304-ND - KIT STM32 MOTOR DRIVER BLDC497-6438-ND - BOARD EVALUTION FOR STM32 512K497-6289-ND - KIT PERFORMANCE STICK FOR STM32MCBSTM32UME-ND - BOARD EVAL MCBSTM32 + ULINK-MEMCBSTM32U-ND - BOARD EVAL MCBSTM32 + ULINK2更多... 其它名称:497-9032STM32F101T8U6-ND
MC68HC711D3CFNE2 功能描述:8位微控制器 -MCU 8B OTP 192RAM 2 MHZ RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*