參數(shù)資料
型號: SAF-XC2287M-72F80LAA
廠商: INFINEON TECHNOLOGIES AG
元件分類: 微控制器/微處理器
英文描述: RISC MICROCONTROLLER, PQFP144
封裝: 0.50 mm pitch, GREEN, PLASTIC, LQFP-144
文件頁數(shù): 11/142頁
文件大?。?/td> 1112K
代理商: SAF-XC2287M-72F80LAA
XC2287M, XC2286M, XC2285M
XC2000 Family Derivatives / Base Line
Electrical Parameters
Data Sheet
108
V2.0, 2009-03
Access to the XC228xM Flash modules is controlled by the IMB. Built-in prefetch
mechanisms optimize the performance for sequential access.
Flash access waitstates only affect non-sequential access. Due to prefetch
mechanisms, the performance for sequential access (depending on the software
structure) is only partially influenced by waitstates.
Note: The maximum achievable system frequency is limited by the properties of the
respective derivative.
Table 24
Flash Access Waitstates
Required Waitstates
System Frequency Range
4 WS (WSFLASH = 100B)
f
SYS fSYSmax
3 WS (WSFLASH = 011B)
f
SYS ≤ 17 MHz
2 WS (WSFLASH = 010B)
f
SYS ≤ 13 MHz
1 WS (WSFLASH = 001B)
f
SYS ≤ 8 MHz
0 WS (WSFLASH = 000B)
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