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80C554 데이터시트(PDF) 69 Page - NXP Semiconductors |
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80C554 데이터시트(HTML) 69 Page - NXP Semiconductors |
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69 / 76 page ![]() Philips Semiconductors Preliminary specification 80C554/83C554/87C554 80C51 8-bit microcontroller – 6 clock operation 16K/512 OTP/ROM/ROMless, 7 channel 10 bit A/D, I2C, PWM, capture/compare, high I/O, 64L LQFP 2000 Nov 10 69 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 51. External Data Memory Write Cycle VCC–0.5 0.45V 0.7VCC 0.2VCC–0.1 tCHCL tCLCL tCLCH tCLCX tCHCX SU00009 Figure 52. External Clock Drive XTAL1 0 1 2 3 4 5 678 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 12 3 0 456 7 Figure 53. Shift Register Mode Timing |
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