参数资料
型号: MC705JP7CPE
厂商: Freescale Semiconductor
文件页数: 144/164页
文件大小: 0K
描述: IC MCU 8BIT 224 BYTES RAM 28PDIP
标准包装: 13
系列: HC05
核心处理器: HC05
芯体尺寸: 8-位
速度: 2.1MHz
连通性: SIO
外围设备: POR,温度传感器,WDT
输入/输出数: 22
程序存储器容量: 6KB(6K x 8)
程序存储器类型: OTP
RAM 容量: 224 x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
数据转换器: A/D 4x12b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 28-DIP(0.600",15.24mm)
包装: 管件
Analog Subsystem
MC68HC705JJ7 MC68HC705JP7 Advance Information Data Sheet, Rev. 4.1
80
Freescale Semiconductor
CPFR2
Writing a logic 1 to this write-only flag clears the CPF2 flag in the ASR. Writing a logic 0 to this bit has
no effect. Reading the CPFR2 bit will return a logic 0. By default, this bit looks cleared following a reset
of the device.
1 = Clears the CPF2 flag bit
0 = No effect
CPFR1
Writing a logic 1 to this write-only flag clears the CPF1 flag in the ASR. Writing a logic 0 to this bit has
no effect. Reading the CPFR1 bit will return a logic 0. By default, this bit looks cleared after a reset of
the device.
1 = Clears the CPF1 flag bit
0 = No effect
NOTE
The CPFR1 and CPFR2 bits should be written with logic 1s following a
power-up of either comparator. This will clear out any latched CPF1 or
CPF2 flag bits which might have been set during the slower power-up
sequence of the analog circuitry.
If both inputs to a comparator are above the maximum common-mode input
voltage (VDD –1.5 V), the output of the comparator is indeterminate and
may set the comparator flag. Applying a reset to the device may only
temporarily clear this flag as long as both inputs of a comparator remain
above the maximum common-mode input voltages.
VOFF
This read-write bit controls the addition of an offset voltage to the bottom of the sample capacitor. It is
not active unless the OPT bit in the COPR at location $1FF0 is set. Any reads of the VOFF bit location
return a logic 0 if the OPT bit is clear. During the time that the sample capacitor is connected to an
input (either HOLD or DHOLD set), the bottom of the sample capacitor is connected to VSS. The VOFF
bit is cleared by a reset of the device. For more information, see 8.10 Sample and Hold.
1 = Enables approximately 100 mV offset to be added to the sample voltage when both the HOLD
and DHOLD control bits are cleared
0 = Connects the bottom of the sample capacitor to VSS
COE1
This read-write bit controls the output of comparator 1 to the PB4 pin. It is not active unless the OPT
bit in the COPR at location $1FF0 is set. Any reads of the COE1 bit location return a logic 0 if the OPT
bit is clear. The COE1 bit is cleared by a reset of the device.
1 = Enables the output of comparator 1 to be ORed with the PB4 data bit and OLVL bit, if the DDRB4
bit is also set
0 = Disables the output of comparator 1 from affecting the PB4 pin
CMP2
This read-only bit shows the state of comparator 2 during the time that the bit is read. This bit is
therefore the current state of the comparator without any latched history. The CMP2 bit will be high if
the voltage on the PB0/AN0 pin is greater than the voltage on the PB1/AN1 pin, regardless of the state
of the INV bit in the AMUX register. Since a reset disables comparator 2, this bit returns a logic 0
following a reset of the device.
1 = The voltage on the positive input on comparator 2 is higher than the voltage on the negative
input of comparator 2.
0 = The voltage on the positive input on comparator 2 is lower than the voltage on the negative input
of comparator 2.
相关PDF资料
PDF描述
S912XEG128J2MAA MCU 16BIT 128K FLASH 16K 80QFP
MC9S12XD64MAA IC MCU 16BIT 64K FLASH 80-QFP
MC56F8322VFAER2 IC HYBRID CTRLR 16BIT 48-LQFP
MCF5207CVM166J IC MCU 32BIT RISC 144-MAPBGA
MC68908GZ16MFJE IC MCU 8BIT 16K FLASH 32-LQFP
相关代理商/技术参数
参数描述
MC705JP7CPE 制造商:Freescale Semiconductor 功能描述:IC 8BIT MCU 68HC05 2.1MHZ DIP-28
MC705K1CP 制造商:Motorola Inc 功能描述:16 PIN DIP INTEGRATED CIRCUIT
MC705L16CFUE 功能描述:8位微控制器 -MCU 8B MCU W/ EPROM 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
MC705P6ACDWE 功能描述:8位微控制器 -MCU MCU 176 BYTES RAM A/D 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
MC705P6ACDWE 制造商:Freescale Semiconductor 功能描述:8-Bit Microcontroller IC