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SN74ALS819 데이터시트(PDF) 11 Page - Texas Instruments |
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SN74ALS819 데이터시트(HTML) 11 Page - Texas Instruments |
11 / 13 page SN74ALS819, SN74ALS29818 8BIT DIAGNOSTICS/PIPELINE REGISTERS SDAS105A − JANUARY 1986 − REVISED OCTOBER 1986 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001 11 PARAMETER MEASUREMENT INFORMATION LOAD CIRCUIT FOR BI-STATE TOTEM-POLE OUTPUTS VOLTAGE WAVEFORMS SETUP AND HOLD TIMES VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES LOAD CIRCUIT FOR 3-STATE OUTPUTS SWITCH POSITION TABLE VOLTAGE WAVEFORMS PULSE DURATIONS VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS Closed Closed Closed Closed Closed Closed Closed Closed Closed Closed Open Open S1 S2 TEST tPLH tPHL tPZH tPZL tPHZ tPLZ S1 R1 CL (see Note A) R2 All Diodes 1N916 of 1N3064 S2 Test Point VCC From Output Under Test CL (see Note A) VCC From Output Under Test RL tsu 3 V 0 V 1.5 V th 1.5 V 1.5 V 3 V 0 V Timing Input Data Input tPLH tPHL tPHL tPLH VOH VOH VOL VOL 1.5 V 1.5 V 3 V 0 V Input Out-of-Phase Output In-Phase Output 1.5 V 1.5 V 1.5 V 1.5 V 3 V 0 V 3 V 0 V 1.5 V 1.5 V 1.5 V 1.5 V tw High-Level Input Low-Level Input 1.5 V 1.5 V 3 V 0 V VOL VOH ≈ 0 V tPLZ tPZL 1.5 V 4.5 V 1.5 V tPZH tPHZ 0.5 V 0.5 V ≈ 1.5 V 1.5 V Output Control Waveform 1 (see Note B) Waveform 2 (see Note B) NOTES: A. CL includes probe and jig 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. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, tr = 2.5 ns, tf ≤ 2.5 ns. Figure 1 |
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