参数资料
型号: MC68HRC05J5ADWR3
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, MICROCONTROLLER, PDSO20
封装: SOIC-20
文件页数: 54/106页
文件大小: 1069K
代理商: MC68HRC05J5ADWR3
July 16, 1999
GENERAL RELEASE SPECIFICATION
MC68HC05J5A
INPUT/OUTPUT PORTS
MOTOROLA
REV 2.1
7-7
If the corresponding bit in the pulldown/up register is clear (and the pulldown/up
mask option is chosen) the input pin will also have an activated pulldown/up
device. Since the pulldown/up register bits are write-only, bit manipulation should
not be used on these register bits.
7.4.4 I/O Pin Transitions
A "glitch" can be generated on an I/O pin when changing it from an input to an out-
put unless the data register is rst preconditioned to the desired state before
changing the corresponding DDR bit from a zero to a one.
If pulldowns are enabled by mask option, a oating input can be avoided by clear-
ing the pulldown/up register bit before changing the corresponding DDR from a
one to a zero. This will insure that the pulldown device will be activated before the
I/O pin changes from a driven output to a pulled low/high input.
7.4.5 I/O Pin Truth Tables
Every pin on Port A and Port B may be programmed as an input or an output
under software control as shown in Table 7-1 and Table 7-2. All port I/O pins may
also have software programmable pulldown/up devices if selected by the appropri-
ate mask option.
Table 7-1. Port A I/O Pin Functions
Table 7-2. Port B I/O Pin Functions
Accesses to
PDURA
at $0010
Accesses to
Data Register
@ $0000
0
1
IN, Hi-Z
OUT
PDURA0-7
DDRA0-7
I/O Pin
PA0-7
*
PA0-7
U
I/O Pin Mode
DDRA
Read/Write
Accesses
to DDRA
@ $0004
Read
Write
Read
Write
* Does not affect input,
but stored to data register
U is undefined
Accesses to
PDURB
at $0011
Accesses to
Data Register
@ $0001
0
1
IN, Hi-Z
OUT
PDURB0-2
DDRB0-2
I/O Pin
PB0-5
*
PB0-5
U
I/O Pin Mode
DDRA
Read/Write
Accesses
to DDRB
@ $0005
Read
Write
Read
Write
* Does not affect input,
but stored to data register
U is undefined
相关PDF资料
PDF描述
MC68L11K1FN2R2 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQCC84
MC68SEC000CFU20 32-BIT, 20 MHz, MICROPROCESSOR, PQFP64
MC7455ARX733LG 32-BIT, 733 MHz, RISC PROCESSOR, CBGA483
MC908AS60AVFU 8-BIT, FLASH, 8.4 MHz, MICROCONTROLLER, PQFP64
MC912D60PMPV8 16-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP112
相关代理商/技术参数
参数描述
MC68HRC705J1ACPE 功能描述:8位微控制器 -MCU 8B MCU 64 BYTES RAM 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
MC68HRC705JJ7CDW 制造商:Motorola Inc 功能描述: 制造商:MOTOROLA 功能描述:
MC68HRC705JP7CP 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68HRC705KJ1CP 功能描述:IC MCU 1.2K 4MHZ OTP 16-DIP RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:HC05 标准包装:250 系列:56F8xxx 核心处理器:56800E 芯体尺寸:16-位 速度:60MHz 连通性:CAN,SCI,SPI 外围设备:POR,PWM,温度传感器,WDT 输入/输出数:21 程序存储器容量:40KB(20K x 16) 程序存储器类型:闪存 EEPROM 大小:- RAM 容量:6K x 16 电压 - 电源 (Vcc/Vdd):2.25 V ~ 3.6 V 数据转换器:A/D 6x12b 振荡器型:内部 工作温度:-40°C ~ 125°C 封装/外壳:48-LQFP 包装:托盘 配用:MC56F8323EVME-ND - BOARD EVALUATION MC56F8323
MC68HRC908JK1CDW 功能描述:IC MCU FLASH 8BIT 1.5K 20-SOIC RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:HC08 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