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SN74BCT2424A 데이터시트(PDF) 11 Page - Texas Instruments |
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SN74BCT2424A 데이터시트(HTML) 11 Page - Texas Instruments |
11 / 14 page SN74BCT2423A, SN74BCT2424A 16-BIT LATCHED MULTIPLEXER/DEMULTIPLEXER BUS TRANSCEIVERS SDIS013 – JULY 1989 – REVISED AUGUST 1990 11 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PARAMETER MEASUREMENT INFORMATION tsu S1 R2 CL (see Note A) LOAD CIRCUIT 3.5 V 0.3 V 1.3 V 1.3 V th 1.3 V Timing Input Data Input Input In-Phase Output Out-of-Phase Output tPLH tPHL tPHL tPLH VOLTAGE WAVEFORMS SETUP AND HOLD TIMES VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES VOH VOH VOL VOL 1.3 V 1.3 V 1.3 V 1.3 V tw High-Level Pulse Low-Level Input Waveform 1 S1 Closed (see Note B) Waveform 2 S1 Open (see Note B) 1.3 V 1.3 V ≈ 3.5 V VOL VOH 0.3 V ≈ 0 V tPZL tPZH tPLZ tPHZ VOLTAGE WAVEFORMS ENABLE AND DISABLED TIMES, 3-STATE OUTPUTS VOLTAGE WAVEFORMS PULSE DURATIONS 1.3 V 1.3 V 1.3 V 1.3 V 1.3 V 1.3 V 1.3 V 1.3 V R1 0.3 V 7 V 3.5 V 0.3 V 3.5 V 0.3 V 3.5 V 0.3 V 3.5 V 0.3 V 3.5 V 0.3 V From Output Under Test Test Point Output Control (Low-level Enabling) RL = R1 = R2 SWITCH POSITION TABLE TEST S1 Open Open Open tPHL tPZH tPZL Closed Open Closed tPHZ tPLZ tPLH NOTES: A. CL includes probe and jig capacitance. B. Wafeform 1 is for an output with internal conditions such that the output is low except when disabled by the current control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. All input pulses have the following characteristics: PRR ≤ 1 MHz, tr = tf = 2 ns, duty cycle = 50%. D. The outputs are measured one at a time with one transition per measurement. Figure 1 |
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