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P80C652IFA Datasheet(PDF) 17 Page - NXP Semiconductors |
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P80C652IFA Datasheet(HTML) 17 Page - NXP Semiconductors |
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17 / 28 page ![]() Philips Semiconductors Product specification 87C654 CMOS single-chip 8-bit microcontroller 1996 Aug 16 17 tLLAX ALE PSEN PORT 0 PORT 2 WR A0–A7 FROM RI OR DPL DATA OUT A0–A7 FROM PCL INSTR IN P2.0–P2.7 OR A8–A15 FROM DPH A8–A15 FROM PCH tWHLH tLLWL tWLWH tAVLL tAVWL tQVWX tWHQX tDW SU00213 Figure 3. External Data Memory Write Cycle 0 1 2 3 4 5 6 7 8 INSTRUCTION ALE CLOCK OUTPUT DATA WRITE TO SBUF INPUT DATA CLEAR RI VALID VALID VALID VALID VALID VALID VALID VALID SET TI SET RI tXLXL tQVXH tXHQX tXHDX tXHDV SU00027 1 2 3 0 4 5 6 7 Figure 4. Shift Register Mode Timing VCC–0.5 0.45V 0.7VCC 0.2VCC–0.1 tCHCL tCLCL tCLCH tCLCX tCHCX SU00009 Figure 5. External Clock Drive |
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