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68HC705JJ7_1 参数 Datasheet PDF下载

68HC705JJ7_1图片预览
型号: 68HC705JJ7_1
PDF下载: 下载PDF文件 查看货源
内容描述: 常规版本规格 [General Release Specification]
分类和应用:
文件页数/大小: 230 页 / 5548 K
品牌: FREESCALE [ Freescale ]
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Freescale Semiconductor, Inc.  
General Description  
PA0–PA5  
applies to the I/O pins that are ORed to create the IRQ signal. For more  
information, refer to 4.6 External Interrupts.  
1.10 PA0–PA5  
These six I/O lines comprise port A, a general-purpose bidirectional I/O  
port. This port also has four pins which have keyboard interrupt  
capability. All six of these pins have high current source and sink  
capability.  
All of these pins have software programmable pulldowns which can be  
disabled by the SWPDI bit in the MOR.  
1.11 PB0–PB7  
These eight I/O lines comprise port B, a general-purpose bidirectional  
I/O port. This port is also shared with the 16-bit programmable timer  
input capture and output compare functions, with the two voltage  
comparators in the analog subsystem, and with the simple serial  
interface (SIOP).  
The outputs of voltage comparator 1 can directly drive the PB4 pin; and  
the PB4 pin has high current source and sink capability.  
All of these pins have software programmable pulldowns which can be  
disabled by the SWPDI bit in the MOR.  
1.12 PC0–PC7 (MC68HC705JP7)  
These eight I/O lines comprise port C, a general-purpose bidirectional  
I/O port. This port is only available on the 28-pin MC68HC705JP7. All  
eight of these pins have high current source and sink capability.  
All of these pins have software programmable pulldowns which can be  
disabled by the SWPDI bit in the MOR.  
MC68HC705JJ7/MC68HC705JP7 Rev. 3.0  
General Release Specification  
General Description  
For More Information On This Product,  
Go to: www.freescale.com  
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