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AT89S53-24JC 参数 Datasheet PDF下载

AT89S53-24JC图片预览
型号: AT89S53-24JC
PDF下载: 下载PDF文件 查看货源
内容描述: 8位微控制器,带有12K字节的闪存 [8-Bit Microcontroller with 12K Bytes Flash]
分类和应用: 闪存微控制器
文件页数/大小: 32 页 / 474 K
品牌: ATMEL [ ATMEL ]
 浏览型号AT89S53-24JC的Datasheet PDF文件第24页浏览型号AT89S53-24JC的Datasheet PDF文件第25页浏览型号AT89S53-24JC的Datasheet PDF文件第26页浏览型号AT89S53-24JC的Datasheet PDF文件第27页浏览型号AT89S53-24JC的Datasheet PDF文件第28页浏览型号AT89S53-24JC的Datasheet PDF文件第30页浏览型号AT89S53-24JC的Datasheet PDF文件第31页浏览型号AT89S53-24JC的Datasheet PDF文件第32页  
AT89S53  
Serial Port Timing: Shift Register Mode Test Conditions  
The values in this table are valid for VCC = 4.0V to 6V and Load Capacitance = 80 pF.  
Symbol  
Parameter  
12 MHz Oscillator  
Min Max  
Variable Oscillator  
Units  
Min  
Max  
tXLXL  
Serial Port Clock Cycle Time  
1.0  
12tCLCL  
µs  
tQVXH  
Output Data Setup to Clock Rising  
Edge  
700  
10tCLCL - 133  
ns  
tXHQX  
tXHDX  
tXHDV  
Output Data Hold After Clock Rising  
Edge  
50  
0
2tCLCL - 117  
0
ns  
ns  
ns  
Input Data Hold After Clock Rising  
Edge  
Clock Rising Edge to Input Data  
Valid  
700  
10tCLCL - 133  
Shift Register Mode Timing Waveforms  
(1)  
(1)  
AC Testing Input/Output Waveforms  
Float Waveforms  
Notes: 1. AC Inputs during testing are driven at VCC - 0.5V  
for a logic 1 and 0.45V for a logic 0. Timing mea-  
surements are made at VIH min. for a logic 1 and VIL  
max. for a logic 0.  
Notes: 1. For timing purposes, a port pin is no longer floating  
when a 100 mV change from load voltage occurs. A  
port pin begins to float when a 100 mV change from  
the loaded VOH/VOL level occurs.  
4-245  
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