參數(shù)資料
型號: C515C-LM
廠商: INFINEON TECHNOLOGIES AG
元件分類: 8位微控制器
英文描述: 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述: 8位微控制器與2/4/8K字節(jié)在系統(tǒng)可編程閃存
文件頁數(shù): 72/96頁
文件大?。?/td> 1285K
代理商: C515C-LM
C515C
Data Sheet
68
2003-02
1)
Capacitive loading on ports 0 and 2 may cause spurious noise pulses to be superimposed on the
V
OL
of ALE
and port 3. The noise is due to external bus capacitance discharging into the port 0 and port 2 pins when these
pins make 1-to-0 transitions during bus operation. In the worst case (capacitive loading > 100 pF), the noise
pulse on ALE line may exceed 0.8 V. In such cases it may be desirable to qualify ALE with a Schmitt-trigger,
or use an address latch with a Schmitt-trigger strobe input.
2)
Capacitive loading on ports 0 and 2 may cause the
V
OH
on ALE and PSEN to momentarily fall below the
0.9
V
DD
specification when the address lines are stabilizing.
3)
Overload conditions under operating conditions occur if the voltage on the respective pin exceeds the specified
operating range (i.e.
V
OV
>
V
DD
+ 0.5 V or
V
OV
<
V
SS
- 0.5 V). The absolute sum of input overload currents on
all port pins may not exceed
50 mA
. The supply voltage (
V
DD
and
V
SS
) must remain within the specified limits.
4)
Not 100% tested, guaranteed by design characterization.
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