SN74ACT7204L datasheet(17/22 Pages) TI1

17 / 22 page

SN74ACT7203L, SN74ACT7204L, SN74ACT7205L, SN74ACT7206L

2048 × 9, 4096 × 9, 8192 × 9, 16384 × 9

ASYNCHRONOUS FIRST IN, FIRST OUT MEMORIES

SCAS226A − FEBRUARY 1993 − REVISED SEPTEMBER 1995

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251−1443

PARAMETER MEASUREMENT INFORMATION

1.5 V

3 V

GND

tsu

VOLTAGE WAVEFORMS

SETUP AND HOLD TIMES

Timing

Input

Data,

Enable

Input

1.5 V

3 V

GND

High-Level

Input

Low-Level

Input

1.5 V

VOLTAGE WAVEFORMS

PULSE DURATIONS

tpd

Input

1.5 V

3 V

GND

VOH

VOL

In-Phase

Output

VOLTAGE WAVEFORMS

PROPAGATION DELAY TIMES

VOL

VOH

tPLZ

≈ 3 V

tPHZ

1.5 V

3 V

GND

VOLTAGE WAVEFORMS

ENABLE AND DISABLE TIMES

tPZL

1.5 V

≈ 0 V

1.5 V

tPZH

Output

Enable

Low-Level

Output

High-Level

Output

From Output

Under Test

30 pF

(see Note A)

680

Ω

1100

Ω

5 V

LOAD CIRCUIT

NOTE A: Includes probe and jig capacitance

Figure 13. Load Circuit and Voltage Waveforms

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