ACT-F128K32 Просмотр технического описания (PDF) - Aeroflex Corporation

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ACT-F128K32

High Speed 4 Megabit FLASH Multichip Module

Aeroflex Corporation 

Figure 1

AC Waveforms for Toggle Bit During Embedded Algorithm Operations

CE

tOEH

WE

tOES

OE

Data

D0-D7

D6=Toggle

D6=Toggle

D6

Stop Toggle

tOE

D0-D7

Valid

Figure 2

AC Test Circuit

Current Source

To Device Under Test

CL =

50 pF

IOL

Parameter

Input Pulse Level

Input Rise and Fall

VZ ~ 1.5 V (Bipolar Supply) Input and Output Timing Reference

Output Lead Capacitance

Typical

0 – 3.0

5

1.5

50

Units

V

ns

V

pF

IOH

Current Source

Notes:

1) VZ is programmable from -2V to +7V. 2) IOL and IOH programmable from 0 to 16 mA. 3) Tester Impedance

ZO = 75Ω. 4) VZ is typically the midpoint of VOH and VOL. 5) IOL and IOH are adjusted to simulate a typical

resistance load circuit. 6) ATE Tester includes jig capacitance.

Aeroflex Circuit Technology

9

SCD1667 REV A 4/28/97 Plainview NY (516) 694-6700

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