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74HCT299N 数据表(PDF) 10 Page - NXP Semiconductors |
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74HCT299N 数据表(HTML) 10 Page - NXP Semiconductors |
10 / 11 page December 1990 10 Philips Semiconductors Product specification 8-bit universal shift register; 3-state 74HC/HCT299 AC WAVEFORMS handbook, full pagewidth MBA335 1/ f max VM (1) t su t h t su t h VM (1) t W t PHL VM (1) t THL t PLH t TLH I/O ,D ,D n SR SL INPUTS CP INPUT I/O ,Q ,Q OUTPUTS n0 7 Fig.6 Waveforms showing the clock (CP) to output (I/On, Q0, Q7) propagation delays, the clock pulse width, the I/On, DSR and DSL to CP set-up and hold times, the output transition times and the maximum clock frequency. The shaded areas indicate when the input is permitted to change for predictable output performance. (1) HC : VM = 50%; VI = GND to VCC. HCT : VM = 1.3 V; VI = GND to 3 V. Fig.7 Waveforms showing the master reset (MR) pulse width (LOW), the master reset to output (I/On, Q0, Q7) propagation delays and the master reset to clock (CP) removal time. (1) HC : VM = 50%; VI = GND to VCC. HCT : VM = 1.3 V; VI = GND to 3 V. |
类似零件编号 - 74HCT299N |
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类似说明 - 74HCT299N |
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