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SN74ALS29861DW 데이터시트(PDF) 6 Page - Texas Instruments |
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SN74ALS29861DW 데이터시트(HTML) 6 Page - Texas Instruments |
6 / 8 page SN74ALS29861, SN74ALS29862 10BIT BUS TRANSCEIVERS WITH 3STATE OUTPUTS SDAS097B − D2915, JANUARY 1986 − REVISED AUGUST 1988 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 6 PARAMETER MEASUREMENT INFORMATION LOAD CIRCUIT VOLTAGE WAVEFORMS SETUP AND HOLD TIMES VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES VOLTAGE WAVEFORMS PULSE DURATIONS VOLTAGE WAVEFORMS ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS SWITCH POSITION TABLE Closed Closed Closed Closed Closed Closed Closed Closed Closed Closed Open Open S1 S2 TEST tPLH tPHL tPZH tPZL tPHZ tPLZ S1 R1 1 k Ω CL (see Note A) RL All Diodes 1N916 or 1N3064 S2 Test Point VCC From Output Under Test 180 Ω 3 V 0 V 1.5 V 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 1.5 V 1.5 V 0.5 V 0.5 V Output Control Waveform 1 (see Note B) Waveform 2 (see Note B) ≈ 1.5 V ≈ 0 V ≈ 1.5 V ≈ 4.5 V tPHZ tPLZ tPZL tPZH tsu th 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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