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P80C32 Scheda tecnica(PDF) 45 Page - NXP Semiconductors |
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P80C32 Scheda tecnica(HTML) 45 Page - NXP Semiconductors |
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45 / 62 page ![]() Philips Semiconductors Product data P80C3xX2; P80C5xX2; P87C5xX2 80C51 8-bit microcontroller family 4K/8K/16K/32K ROM/OTP, low voltage (2.7 to 5.5 V), low power, high speed (30/33 MHz) 2003 Jan 24 45 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 DPF A0–A15 FROM PCH tWHLH tLLWL tWLWH tAVLL tAVWL tQVWX tWHQX tQVWH SU00026 Figure 29. External Data Memory Write Cycle 0 1 2 3 4 5 678 INSTRUCTION ALE CLOCK OUTPUT DATA WRITE TO SBUF INPUT DATA CLEAR RI SET TI SET RI tXLXL tQVXH tXHQX tXHDX tXHDV SU00027 12 3 0 456 7 VALID VALID VALID VALID VALID VALID VALID VALID Figure 30. Shift Register Mode Timing VCC–0.5 0.45V 0.7VCC 0.2VCC–0.1 tCHCL tCLCL tCLCH tCLCX tCHCX SU00009 Figure 31. External Clock Drive |
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