74ACT16244DLR 데이터 시트보기 (PDF) - TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS

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74ACT16244DLR

16-BIT BUFFERS/LINE DRIVERS WITH 3-STATE OUTPUTS

TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS 

SN54ACT16244, 74ACT16244

16-BIT BUFFERS/LINE DRIVERS

WITH 3-STATE OUTPUTS

SCAS116B – MARCH 1990 – REVISED APRIL 1996

PARAMETER MEASUREMENT INFORMATION

From Output

Under Test

CL = 50 pF

(see Note A)

500 Ω

500 Ω

2 × VCC

S1

Open

GND

TEST

tPLH/tPHL

tPLZ/tPZL

tPHZ/tPZH

S1

Open

2 × VCC

GND

Input

tPLH

Output

1.5 V

LOAD CIRCUIT

1.5 V

50% VCC

3V

0V

tPHL

VOH

50% VCC

VOL

Output

Control

(low-level

enabling) tPZL

Output

Waveform 1

S1 at 2 × VCC

(see Note B)

Output

Waveform 2

S1 at GND

(see Note B)

tPZH

1.5 V

1.5 V

tPLZ

50% VCC

tPHZ

20% VCC

50% VCC

80% VCC

VOLTAGE WAVEFORMS

VOLTAGE WAVEFORMS

3V

0V

[ VCC

VOL

VOH

[0V

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 ≤ 1 MHz, ZO = 50 Ω, tr = 3 ns, tf = 3 ns.

D. The outputs are measured one at a time with one input transition per measurement.

Figure 1. Load Circuit and Voltage Waveforms

6

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