參數(shù)資料
型號： SAB80C517A-N18-T3
廠商： INFINEON TECHNOLOGIES AG
元件分類： 微控制器/微處理器
英文描述： 8-BIT, 18 MHz, MICROCONTROLLER, PQCC84
封裝： PLASTIC, LCC-84
文件頁數(shù)： 30/137頁
文件大?。?/td> 2089K
代理商： SAB80C517A-N18-T3
Device Specification
Semiconductor Group
7-63
Notes for page 62:
1) Capacitive loading on ports 0 and 2 may cause spurious noise pulses to be superimposed
on the VOL of ALE and ports 1, 3, 4, 5 and 6. 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 CC specification when the address lines are stabilizing.
3) IPD (Power down mode) is measured with:
EA
= RESET = VCC; Port0 = Port7 = Port8 = VCC; XTAL1 = N.C.; XTAL2 = VSS;
PE/SWD
= OWE = V SS;HWDP = VCC (Software Power Down mode); VARef = VCC;
VAGND = V SS; all other pins are disconnected. Hardware Powerdown IPD : OWE =VCC
or VSS. No certain pin connection for the other pins.
4) ICC (active mode) is measured with:
XTAL2 driven with tCLCH, tCHCL = 5 ns, V IL = VSS + 0.5 V, VIH = VCC – 0.5 V; XTAL1 = N.C.;
EA = PE
/SWD = VCC; Port0 = Port7 = Port8 = VCC; HWPD = VCC; RESET = VSS
all other pins are disconnected. ICC would be slightly higher if a crystal oscillator is
used (appr. 1 mA).
5) ICC (Idle mode) is measured with all output pins disconnected and with all peripherals
disabled; XTAL2 driven with tCLCH, tCHCL = 5 ns, V IL = VSS + 0.5 V, VIH = VCC – 0.5 V;
XTAL1 = N.C.; RESET = VCC; HWPD = VCC; Port0 = Port7 = Port8 =VCC ;
EA = PE
/SWD = VSS; all other pins are disconnected;
6) ICC (slow down mode) is measured with all output pins disconnected and with all peripher-
als disabled; XTAL2 driven with tCLCH, t CHCL = 5 ns, VIL = VSS + 0.5 V, VIH =VCC – 0.5 V;
XTAL1 = N.C.;RESET= VCC; HWPD = VCC; Port7 = Port8 = VCC; EA = PE/SWD = VSS ;
all other pins are disconnected;
7) ICC Max at other frequencies is given by:
active mode: ICC (max) = 1.50* f OSC + 10
idle mode: ICC (max) = 1.17* f OSC + 10
where fOSC is the oscillator frequency in MHz. ICC values are given in mA and
measured at VCC = 5 V.
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