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CD74HCT45111 数据表(PDF) 9 Page - Texas Instruments |
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CD74HCT45111 数据表(HTML) 9 Page - Texas Instruments |
9 / 22 page CD54HC4511, CD74HC4511, CD74HCT4511 BCDTO7 SEGMENT LATCH/DECODER/DRIVERS SCHS279D − DECEMBER 1998 − REVISED OCTOBER 2003 9 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PARAMETER MEASUREMENT INFORMATION − ’HC4511 Test Point From Output Under Test CL (see Note A) VCC S1 S2 LOAD CIRCUIT PARAMETER tPZH tpd or tt tdis ten tPZL tPHZ tPLZ Open Closed S1 Closed Open S2 Open Closed Closed Open Open Open NOTES: A. CL includes probe and test-fixture capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. Phase relationships between waveforms were chosen arbitrarily. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO = 50 Ω, tr = 6 ns, tf = 6 ns. D. For clock inputs, fmax is measured with the input duty cycle at 50%. E. The outputs are measured one at a time with one input transition per measurement. F. tPLZ and tPHZ are the same as tdis. G. tPZL and tPZH are the same as ten. H. tPLH and tPHL are the same as tpd. RL = 1 kΩ VOLTAGE WAVEFORMS SETUP AND HOLD AND INPUT RISE AND FALL TIMES th tsu 50% VCC 50% VCC 50% 10% 10% 90% 90% VCC VCC 0 V 0 V tr tf Reference Input Data Input VOLTAGE WAVEFORMS PROPAGATION DELAY AND OUTPUT TRANSITION TIMES 50% VCC 50% VCC 50% 10% 10% 90% 90% VCC VOH VOL 0 V tr tf Input In-Phase Output 50% VCC tPLH tPHL 50% VCC 50% 10% 10% 90% 90% VOH VOL tr tf tPHL tPLH Out-of-Phase Output 0 V tw VOLTAGE WAVEFORMS PULSE DURATION Input 50% VCC 50% VCC VCC Output Control Output Waveform 1 (see Note B) Output Waveform 2 (see Note B) VOL VOH tPZL tPZH tPLZ tPHZ ≈VCC 0 V 50% VCC 10% 50% VCC ≈0 V VOLTAGE WAVEFORMS OUTPUT ENABLE AND DISABLE TIMES 50% VCC 50% VCC 90% VCC VOLTAGE WAVEFORMS RECOVERY TIME 50% VCC VCC 0 V CLR Input CLK 50% VCC VCC trec 0 V Figure 1. Load Circuit and Voltage Waveforms |
类似零件编号 - CD74HCT45111 |
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类似说明 - CD74HCT45111 |
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