參數(shù)資料
型號: R5F6457HJFD
元件分類: 微控制器/微處理器
英文描述: 32-BIT, FLASH, 64 MHz, MICROCONTROLLER, PQFP144
封裝: 20 X 20 MM, 0.50 MM PITCH, PLASTIC, LQFP-144
文件頁數(shù): 15/134頁
文件大?。?/td> 835K
代理商: R5F6457HJFD
REJ03B0234-0102 Rev.1.02 Nov 30, 2009
Page 109 of 129
R32C/157 Group
5. Electrical Characteristics
VCC =5V
Timing Requirements (VCC = 4.2 to 5.5 V, VSS = 0 V, and Ta =Topr, unless otherwise noted)
Table 5.21
External Clock Input
Symbol
Characteristic
Value
Unit
Min.
Max.
tc(X)
External clock input period
125
250
ns
tw(XH)
External clock input high level pulse width
50
ns
tw(XL)
External clock input low level pulse width
50
ns
tr(X)
External clock input rise time
5ns
tf(X)
External clock input fall time
5ns
tw / tc
External clock input duty
40
60
%
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