SN54AHCT16373_06 datasheet(6/11 Pages) TI | 16-BIT TRANSPARENT D-TYPE LATCHES WITH 3-STATE OUTPUTS

6 page

SN54AHCT16373, SN74AHCT16373

16-BIT TRANSPARENT D-TYPE LATCHES

WITH 3-STATE OUTPUTS

SCLS336H – MARCH 1996 – REVISED JANUARY 2000

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

PARAMETER MEASUREMENT INFORMATION

50% VCC

3 V

0 V

tsu

VOLTAGE WAVEFORMS

SETUP AND HOLD TIMES

Data Input

tPLH

tPHL

tPLH

VOH

VOL

3 V

0 V

50% VCC

Input

Out-of-Phase

Output

In-Phase

Output

Timing Input

50% VCC

VOLTAGE WAVEFORMS

PROPAGATION DELAY TIMES

INVERTING AND NONINVERTING OUTPUTS

Output

Control

Output

Waveform 1

S1 at VCC

(see Note B)

Output

Waveform 2

S1 at GND

(see Note B)

VOL

VOH

tPZL

tPZH

tPLZ

tPHZ

≈VCC

0 V

50% VCC

VOL + 0.3 V

50% VCC

≈0 V

3 V

VOLTAGE WAVEFORMS

ENABLE AND DISABLE TIMES

LOW- AND HIGH-LEVEL ENABLING

tPLH/tPHL

tPLZ/tPZL

tPHZ/tPZH

Open Drain

Open

VCC

GND

VCC

TEST

3 V

0 V

VOLTAGE WAVEFORMS

PULSE DURATION

Input

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.

From Output

Under Test

(see Note A)

LOAD CIRCUIT FOR

3-STATE AND OPEN-DRAIN OUTPUTS

VCC

RL = 1 kΩ

GND

From Output

Under Test

(see Note A)

Test

Point

LOAD CIRCUIT FOR

TOTEM-POLE OUTPUTS

Open

VOH – 0.3 V

1.5 V

Figure 1. Load Circuit and Voltage Waveforms

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