參數(shù)資料
型號: SAF-XC2285M-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): 23/142頁
文件大小: 1112K
代理商: SAF-XC2285M-72F80LAA
XC2287M, XC2286M, XC2285M
XC2000 Family Derivatives / Base Line
Electrical Parameters
Data Sheet
119
V2.0, 2009-03
4.6.5
External Bus Timing
The following parameters specify the behavior of the XC228xM bus interface.
Note: These parameters are not subject to production test but verified by design and/or
characterization.
Figure 21
CLKOUT Signal Timing
Note: The term CLKOUT refers to the reference clock output signal which is generated
by selecting
f
SYS as the source signal for the clock output signal EXTCLK on pin
P2.8 and by enabling the high-speed clock driver on this pin.
Table 29
CLKOUT Reference Signal
Parameter
Symbol
Limits
Unit Note / Test
Condition
Min.
Max.
CLKOUT cycle time
t
5
CC
40/25/12.51)
1) The CLKOUT cycle time is influenced by the PLL jitter (given values apply to
fSYS = 25/40/80 MHz).
For longer periods the relative deviation decreases (see PLL deviation formula).
ns
CLKOUT high time
t
6
CC 3–ns
CLKOUT low time
t
7
CC 3–ns
CLKOUT rise time
t
8
CC –3ns
CLKOUT fall time
t
9
CC –3ns
MC_X_EBCCLKOUT
CLKOUT
t5
t6
t7
t8
t9
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