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參數(shù)資料
| 型號： | MC68HC705L16 |
| 廠商： | 飛思卡爾半導(dǎo)體(中國)有限公司 |
| 英文描述： | Microcontrollers |
| 中文描述： | 微控制器 |
| 文件頁數(shù)： | 19/146頁 |
| 文件大小： | 772K |
| 代理商： | MC68HC705L16 |
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Functional Pin Description
MC68HC05L16 MC68HC705L16 Data Sheet, Rev. 4.1
Freescale Semiconductor
19
1.5.3.2 External Clock
An external clock from another CMOS-compatible device can be connected to the XOSC1 input, with the
XOSC2 input not connected, as shown in
Figure 1-4
(b). This configuration is possible regardless of how
the oscillator is set up.
1.5.4 RESET
This pin can be used as an input to reset the MCU to a known startup state by pulling it to the low state.
When power is removed, the RESET pin contains a steering diode to discharge any voltage on the pin to
V
DD
. The RESET pin contains an internal Schmitt trigger to improve its noise immunity as an input. An
internal RESET pin pullup resistor may be selected as a mask option. A typical pullup resistor value is 46
k
.
1.5.5 Port A (PA0–PA7)
Port A is an 8-bit I/O port. The state of any pin is software programmable and all port A lines are configured
as inputs during power-on or reset. Port A outputs may be configured as open-drain outputs and
connected to a pullup resistor by software option.
1.5.6 Port B (PB0–PB7/KWI0–KWI7)
Port B is an 8-bit input-only port that shares its lines with the key wakeup interrupt (KWI) system. Port B
has a pullup option by software option.
1.5.7 Port C (PC0/SDI, PC1/SDO, PC2/SCK, PC3/TCAP, PC4/EVI,
PC5/EVO, PC6/IRQ2, and PC7/IRQ1)
Port C is an 8-bit I/O port. The state of any pin is software programmable and all port C lines are
configured as inputs during power-on or reset. All port C lines may connect to a pullup resistor by software
option.
Bits PC0–PC2 are shared with the SSPI subsystem and may be configured as open-drain outputs.
Bit 3 is shared with the TCAP pin of timer 1 and may be configured as an open-drain output.
Bit 4 is shared with the EVI bit of timer 2 and may be configured as an open-drain output.
Bit 5 is shared with the EVO bit of timer 2 and may be configured as an open-drain output.
Bit 6 is shared with the IRQ2 input. This bit is an open-drain output-only pin configured as an
output.
Bit 7 is shared with the IRQ1 input. This bit is an open-drain output-only pin configured as an
output.
1.5.8 Port D (PD1–PD3/BP1–BP3 and PD4–PD7/FP34–FP27)
Port D is a 7-bit output-only port that shares its bits with the LCD backplane/frontplane drivers. Port D lines
are configured as LCD outputs during power-on or reset. PD1–PD3 and PD4–PD7 outputs may be
configured as open-drain outputs by a software option.
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相關(guān)代理商/技術(shù)參數(shù) |
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| MC68HC705L32FU | 制造商:Rochester Electronics LLC 功能描述: 制造商:Freescale Semiconductor 功能描述: |
| MC68HC705L5FUE | 功能描述:8位微控制器 -MCU 705L5-EPP-80QFP-6019 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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| MC68HC705P6ACDW | 功能描述:8位微控制器 -MCU 8 Bit 2.1MHz 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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