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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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P89C668 데이터시트(PDF) 83 Page - NXP Semiconductors |
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P89C668 데이터시트(HTML) 83 Page - NXP Semiconductors |
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83 / 89 page  Philips Semiconductors Product data P89C660/P89C662/P89C664/ P89C668 80C51 8-bit Flash microcontroller family 16KB/32KB/64KB ISP/IAP Flash with 512B/1KB/2KB/8KB RAM 2002 Oct 28 83 VCC–0.5 0.45V 0.2VCC+0.9 0.2VCC–0.1 NOTE: AC inputs during testing are driven at VCC –0.5 for a logic ‘1’ and 0.45V for a logic ‘0’. Timing measurements are made at VIH min for a logic ‘1’ and VIL max for a logic ‘0’. SU00717 Figure 62. AC Testing Input/Output VLOAD VLOAD+0.1V VLOAD–0.1V VOH–0.1V VOL+0.1V NOTE: TIMING REFERENCE POINTS For timing purposes, a port is no longer floating when a 100mV change from load voltage occurs, and begins to float when a 100mV change from the loaded VOH/VOL level occurs. IOH/IOL ≥ ±20mA. SU00718 Figure 63. Float Waveform 2 4 6 8 10 12 14 16 18 60 50 40 30 20 10 Frequency at XTAL1 (MHz, 6 clock mode) ICC (mA) 89C660/662/664/668 MAXIMUM ACTIVE ICC TYPICAL ACTIVE ICC MAXIMUM IDLE TYPICAL IDLE SU01402 20 70 Figure 64. ICC vs. FREQ Valid only within frequency specifications of the device under test |
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