參數(shù)資料
型號： MC705JP7CPE
廠商： Freescale Semiconductor
文件頁數(shù)： 75/164頁
文件大?。?/td> 0K
描述： IC MCU 8BIT 224 BYTES RAM 28PDIP
標準包裝： 13
系列： HC05
核心處理器： HC05
芯體尺寸： 8-位
速度： 2.1MHz
連通性： SIO
外圍設(shè)備： POR，溫度傳感器，WDT
輸入/輸出數(shù)： 22
程序存儲器容量： 6KB（6K x 8）
程序存儲器類型： OTP
RAM 容量： 224 x 8
電壓 - 電源 (Vcc/Vdd)： 2.7 V ~ 5.5 V
數(shù)據(jù)轉(zhuǎn)換器： A/D 4x12b
振蕩器型： 內(nèi)部
工作溫度： -40°C ~ 85°C
封裝/外殼： 28-DIP（0.600"，15.24mm）
包裝： 管件
General Description
MC68HC705JJ7 MC68HC705JP7 Advance Information Data Sheet, Rev. 4.1
18
Freescale Semiconductor
1.6.2 Ceramic Resonator Oscillator
In cost-sensitive applications, a ceramic resonator can be used in place of the crystal. The circuit in
Figure 1-3 (a) can be used for a ceramic resonator. The resonator manufacturer’s recommendations
should be followed, as the resonator parameters determine the external component values required for
maximum stability and reliable starting. The load capacitance values used in the oscillator circuit design
should include all stray capacitances. The ceramic resonator and components should be mounted as
close as possible to the pins for startup stabilization and to minimize output distortion. An internal startup
resistor of approximately 2 M
can be provided between OSC1 and OSC2 for the ceramic resonator type
oscillator by use of the OSCRES bit in the MOR.
1.6.3 RC Oscillator
The lowest cost oscillator is the RC oscillator configuration where a resistor is connected between the two
oscillator pins as shown in Figure 1-3 (b).
The selection of the RC oscillator configuration is done by product part number selection as described in
NOTE
Do not use the internal startup resistor between OSC1 and OSC2 for the
RC-type oscillator.
1.6.4 External Clock
An external clock from another CMOS-compatible device can be connected to the OSC1 input, with the
OSC2 input not connected, as shown in Figure 1-3 (c). This oscillator can be selected via software. This
configuration is possible regardless of whether the crystal/ceramic resonator or RC oscillator
configuration is used.
NOTE
Do not use the internal startup resistor between OSC1 and OSC2 for the
external clock.
1.6.5 Internal Low-Power Oscillator
An internal low-power oscillator (LPO) is provided which is the default oscillator out of reset. When
operating from this internal LPO, the other oscillator can be powered down by software to further conserve
power.
The selection of the LPO configuration is done by product part number selection as described in
1.7 RESET Pin
The RESET pin can be used as an input to reset the MCU to a known startup state by pulling it to the low
state. It also functions as an output to indicate that an internal COP watchdog, illegal address, or
low-voltage reset has occurred. The RESET pin contains a pullup device to allow the pin to be left
disconnected without an external pullup resistor. The RESET pin also contains a steering diode that,
when the power is removed, will discharge to VDD any charge left on an external capacitor connected
between the RESET pin and VSS. The RESET pin also contains an internal Schmitt trigger to improve its
noise immunity as an input.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)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 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格: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 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
MC705P6ACDWE 制造商:Freescale Semiconductor 功能描述:8-Bit Microcontroller IC
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