參數(shù)資料
型號: SAF-C515C-8EMCA
廠商: INFINEON TECHNOLOGIES AG
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 10 MHz, MICROCONTROLLER, PQFP80
封裝: PLASTIC, MQFP-80
文件頁數(shù): 70/97頁
文件大小: 1298K
代理商: SAF-C515C-8EMCA
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
VDD 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.
VOV > VDD + 0.5 V or VOV < VSS - 0.5 V). The absolute sum of input overload currents on
all port pins may not exceed 50 mA. The supply voltage (
VDD and VSS) must remain within the specified limits.
4) Not 100% tested, guaranteed by design characterization.
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