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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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UPSD325X датащи(PDF) 168 Page - STMicroelectronics |
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UPSD325X датащи(HTML) 168 Page - STMicroelectronics |
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168 / 176 page  µPSD325X DEVICES 168/176 Table 140. ISC Timing (3V Devices) Note: 1. For non-PLD Programming, Erase or in ISC By-pass Mode. 2. For Program or Erase PLD only. Figure 87. MCU Module AC Measurement I/O Waveform Note: AC inputs during testing are driven at VCC–0.5V 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' Figure 88. PSD MODULE AC Float I/O Waveform Note: For timing purposes, a Port pin is considered to be no longer floating when a 100mV change from load voltage occurs, and begins to float when a 100mV change from the loaded VOH or VOL level occurs IOL and IOH ≥ 20mA Symbol Parameter Conditions Min Max Unit tISCCF Clock (TCK, PC1) Frequency (except for PLD) (Note 1) 12 MHz tISCCH Clock (TCK, PC1) High Time (except for PLD) (Note 1) 40 ns tISCCL Clock (TCK, PC1) Low Time (except for PLD) (Note 1) 40 ns tISCCFP Clock (TCK, PC1) Frequency (PLD only) (Note 2) 2 MHz tISCCHP Clock (TCK, PC1) High Time (PLD only) (Note 2) 240 ns tISCCLP Clock (TCK, PC1) Low Time (PLD only) (Note 2) 240 ns tISCPSU ISC Port Set Up Time 12 ns tISCPH ISC Port Hold Up Time 5 ns tISCPCO ISC Port Clock to Output 30 ns tISCPZV ISC Port High-Impedance to Valid Output 30 ns tISCPVZ ISC Port Valid Output to High-Impedance 30 ns AI06650 VCC – 0.5V 0.45V Test Points 0.2 VCC – 0.1V 0.2 VCC + 0.9V AI06651 Test Reference Points VOL + 0.1V VOH – 0.1V VLOAD – 0.1V VLOAD + 0.1V 0.2 VCC – 0.1V |
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