SN74ACT2226DW datasheet(10/13 Pages) TI

Part #	SN74ACT2226DW

Description	DUAL 64 횞 1, DUAL 256 횞 1 CLOCKED FIRST-IN, FIRST-OUT MEMORIES

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Manufacturer	TI [Texas Instruments]

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SN74ACT2226, SN74ACT2228

DUAL 64

× 1, DUAL 256 × 1

CLOCKED FIRST-IN, FIRST-OUT MEMORIES

SCAS219C – JUNE 1992 – REVISED OCTOBER 1997

10

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

PARAMETER MEASUREMENT INFORMATION

VOH

VOL

th

tPLH

tPHL

Output

Control

Output

Waveform 1

S1 at 7 V

Output

Waveform 2

S1 at Open

tPZL

tPZH

tPLZ

tPHZ

1.5 V

3 V

0 V

1.5 V

VOH

VOL

0 V

1.5 V

VOL + 0.3 V

1.5 V

VOH – 0.3 V

≈ 0 V

1.5 V

3 V

0 V

1.5 V

0 V

3 V

0 V

1.5 V

tw

Input

3 V

≈ 3.5 V

VOLTAGE WAVEFORMS

SETUP AND HOLD TIMES

VOLTAGE WAVEFORMS

PROPAGATION DELAY TIMES

VOLTAGE WAVEFORMS

PULSE DURATION

VOLTAGE WAVEFORMS

ENABLE AND DISABLE TIMES

Timing

Input

Data

Input

Output

Input

S1

500

Ω

LOAD CIRCUIT

500

Ω

7 V

From Output

Under Test

Test

Point

NOTE A: CL includes probe and jig capacitance.

CL = 50 pF

(see Note A)

tsu

tPZH

tPZL

tPHZ

tPLZ

tPLH

tPHL

Open

Closed

Open

Closed

Open

PARAMETER

S1

ten

tdis

tpd

Figure 4. Load Circuit and Voltage Waveforms

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SN74ACT2226DW Datasheet(PDF) 10 Page - Texas Instruments

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