參數(shù)資料
型號： MC68HC705F4P
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 8-BIT, OTPROM, 1.789 MHz, MICROCONTROLLER, PDIP28
封裝： PLASTIC, DIP-28
文件頁數(shù)： 52/130頁
文件大?。?/td> 10504K
代理商： MC68HC705F4P
2-6
MC68HC05F4
MODES OF OPERATION AND PIN DESCRIPTIONS
2
2.4.8
TCAP1, TCMP1, TCAP2, TCMP2
These four pins are connected to the 16-bit programmable timer system. TCAP1 and TCAP2 are
the timer input capture pins. TCMP1 and TCMP2 are the output compare pins for the timer.
TCMP1 and TCMP2 are open drain outputs, therefore each pin requires an external pull-up
resistor when it is used as an output.
2.4.9
TNO and TNX
The TNO output provides dual tone DTMF or melody under program control. TNO is an open-drain
output, and therefore requires an external pull-up resistor. The TNX output provides pacier tones
under program control.
2.4.10
OSC1 and OSC2
These pins provide control input for an on-chip oscillator circuit. A crystal or external clock signal
connected to these pins supplies the oscillator clock. The oscillator frequency of 3.579 MHz
provides the time base for the real-time clock and the DTMF/melody generator.
2.4.10.1
Crystal
The circuit shown in Figure 2-2(a) is recommended when using either a crystal or a ceramic
resonator. Figure 2-2(d) provides the recommended capacitance and feedback resistance values.
The internal oscillator is designed to interface with an AT-cut parallel-resonant quartz crystal
resonator in the frequency range specied for fOSC (see Section 10.4). Use of an external CMOS
oscillator is recommended when crystals outside the specied ranges are to be used. The crystal
and associated components should be mounted as close as possible to the input pins to minimize
output distortion and start-up stabilization time. The manufacturer of the particular crystal being
considered should be consulted for specic information.
2.4.10.2
External clock
An external clock should be applied to the OSC1 input, with the OSC2 pin left unconnected, as
shown in Figure 2-2(c). The tOXOV specication (see Section 10.4) does not apply when using an
external clock input. The equivalent specication of the external clock source should be used in
lieu of tOXOV.
TPG
24
05F4Book Page 6 Tuesday, August 5, 1997 1:10 pm
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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相關(guān)PDF資料
PDF描述
MC68HC705F4FB 8-BIT, OTPROM, 1.789 MHz, MICROCONTROLLER, PQFP44
MC68HC05F4FB 8-BIT, MROM, 1.789 MHz, MICROCONTROLLER, PQFP44
MC68HC05F4CDW 8-BIT, MROM, 1.789 MHz, MICROCONTROLLER, PDSO28
MC68HC705G4 8-BIT, OTPROM, 1 MHz, MICROCONTROLLER, PQFP80
MC68HC05G3 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PQFP80
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC68HC705G1B 制造商:Rochester Electronics LLC 功能描述:- Bulk
MC68HC705J1A 制造商:Freescale Semiconductor 功能描述:
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MC68HC705J1ACP 功能描述:IC MCU 4MHZ 1.2K OTP 20-DIP RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:HC05 其它有關(guān)文件:STM32F101T8 View All Specifications 特色產(chǎn)品:STM32 32-bit Cortex MCUs 標(biāo)準(zhǔn)包裝:490 系列:STM32 F1 核心處理器:ARM? Cortex?-M3 芯體尺寸:32-位 速度:36MHz 連通性:I²C，IrDA，LIN，SPI，UART/USART 外圍設(shè)備:DMA，PDR，POR，PVD，PWM，溫度傳感器，WDT 輸入/輸出數(shù):26 程序存儲器容量:64KB（64K x 8） 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:10K x 8 電壓 - 電源 (Vcc/Vdd):2 V ~ 3.6 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 10x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:36-VFQFN，36-VFQFPN 包裝:托盤 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... 其它名稱:497-9032STM32F101T8U6-ND
MC68HC705J1ACPE 功能描述:8位微控制器 -MCU HCO5 CORE+1.2K RAM + EPR 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(fēng)格:SMD/SMT
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