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CY8C9540A-24PVXI 参数 Datasheet PDF下载

CY8C9540A-24PVXI图片预览
型号: CY8C9540A-24PVXI
PDF下载: 下载PDF文件 查看货源
内容描述: 20-, 40- ,和60位IO扩展器,带有EEPROM [20-, 40-, and 60-Bit IO Expander with EEPROM]
分类和应用: 并行IO端口微控制器和处理器外围集成电路光电二极管可编程只读存储器电动程控只读存储器电可擦编程只读存储器
文件页数/大小: 24 页 / 721 K
品牌: CYPRESS [ CYPRESS ]
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CY8C9520A, CY8C9540A  
CY8C9560A  
AC Electrical Characteristics  
AC General Purpose IO Specifications  
Table 25 lists guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75V to 5.25V and -40°C  
TA 85°C, or 3.0V to 3.6V and -40°C TA 85°C, respectively. Typical parameters apply to 5V and 3.3V at 25°C and are for design  
guidance only or unless otherwise specified.  
Table 25. AC GPIO Specifications  
Symbol  
FGPIO  
Description  
Min  
Typ  
Max  
12  
Units  
MHz  
ns  
Notes  
GPIO Operating Frequency  
0
3
2
Normal Strong Mode  
TRiseF  
TFallF  
Rise time, normal strong mode, Cload = 50 pF  
Fall time, normal strong mode, Cload = 50 pF  
Rise time, slow strong mode, Cload = 50 pF  
Fall time, slow strong mode, Cload = 50 pF  
18  
18  
Vdd = 4.75 to 5.25V, 10% - 90%  
Vdd = 4.75 to 5.25V, 10% - 90%  
Vdd = 3 to 5.25V, 10% - 90%  
Vdd = 3 to 5.25V, 10% - 90%  
ns  
TRiseS  
TFallS  
10  
10  
27  
22  
ns  
ns  
Figure 8. GPIO Timing Diagram  
90%  
GPIO  
Pin  
Output  
Voltage  
10%  
TRiseF  
TRiseS  
TFallF  
TFallS  
AC PWM Output Jitter Specifications  
Table 26 lists guaranteed maximum and minimum specifications for the voltage and temperature ranges: 4.75V to 5.25V and -40°C  
TA 85°C, or 3.0V to 3.6V and -40°C TA 85°C, respectively. Typical parameters apply to 5V and 3.3V at 25°C and are for design  
guidance only or unless otherwise specified.  
Table 26. AC PWM Output Jitter Specifications  
Symbol  
Description  
Min  
Typ  
0.1  
Max  
1.5  
Units  
Notes  
Jitter24MHzPWM 24MHzbasedPWMpeak-to-peakperiod –  
jitter  
%
24 MHz, 1.5 MHz, 93.75 kHz and  
367.6 Hz (programmable)  
sources.  
Jitter32kHzPWM 32 kHz-based PWM peak-to-peak period –  
jitter  
2.5  
5.0  
%
32 kHz clock source.  
Document Number: 38-12036 Rev. *B  
Page 18 of 24  
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