参数资料
型号: MC9S12DJ512MPV
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112
封装: ROHS COMPLIANT, LQFP-112
文件页数: 78/124页
文件大小: 4657K
代理商: MC9S12DJ512MPV
MC9S12DP512 Device Guide V01.25
57
2.3.11 PA[7:0] / ADDR[15:8] / DATA[15:8] — Port A I/O Pins
PA7-PA0 are general purpose input or output pins. In MCU expanded modes of operation, these pins are
used for the multiplexed external address and data bus.
2.3.12 PB[7:0] / ADDR[7:0] / DATA[7:0] — Port B I/O Pins
PB7-PB0 are general purpose input or output pins. In MCU expanded modes of operation, these pins are
used for the multiplexed external address and data bus.
2.3.13 PE7 / NOACC / XCLKS — Port E I/O Pin 7
PE7 is a general purpose input or output pin. During MCU expanded modes of operation, the NOACC
signal, when enabled, is used to indicate that the current bus cycle is an unused or “free” cycle. This signal
will assert when the CPU is not using the bus.
The XCLKS is an input signal which controls whether a crystal in combination with the internal Colpitts
(low power) oscillator is used or whether Pierce oscillator/external clock circuitry is used. The state of this
pin is latched at the rising edge of RESET. If the input is a logic low the EXTAL pin is configured for an
external clock drive or a Pierce Oscillator. If input is a logic high a Colpitts oscillator circuit is configured
on EXTAL and XTAL. Since this pin is an input with a pull-up device during reset, if the pin is left
floating, the default configuration is a Colpitts oscillator circuit on EXTAL and XTAL.
Figure 2-3 Colpitts Oscillator Connections (PE7=1)
MCU
C2
EXTAL
XTAL
Crystal or
VSSPLL
ceramic resonator
C1
CDC *
* Due to the nature of a translated ground Colpitts oscillator a
DC voltage bias is applied to the crystal
bias conditions and recommended capacitor value CDC.
Please contact the crystal manufacturer for crystal DC
相关PDF资料
PDF描述
MC68882RC40A 32-BIT, MATH COPROCESSOR, CPGA68
MC68EC000FN10R2 32-BIT, 10 MHz, MICROPROCESSOR, PQCC68
MC68EC000FN20R2 32-BIT, 20 MHz, MICROPROCESSOR, PQCC68
MC68HC11A0CP3 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PDIP48
MC68HC11E0CFU3 8-BIT, 3 MHz, MICROCONTROLLER, PQFP64
相关代理商/技术参数
参数描述
MC9S12DJ64CFUE 功能描述:16位微控制器 - MCU 64K FLASH HCS12 MCU RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
MC9S12DJ64CPV 制造商:Rochester Electronics LLC 功能描述:64K FLASH HCS12 MCU - Bulk
MC9S12DJ64CPVE 功能描述:16位微控制器 - MCU 64K FLASH HCS12 MCUQF RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
MC9S12DJ64MFUE 功能描述:16位微控制器 - MCU TORPEDO 64K FLASH HCS12 RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
MC9S12DJ64MPVE 功能描述:16位微控制器 - MCU 64K FLASH HCS12 MCU RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT