5

P/N:PM0203

REV.5.6, AUG. 26, 2003

MX27C256

SWITCHING TEST CIRCUITS

SWITCHING TEST WAVEFORMS

DEVICE

UNDER

TEST

DIODES = IN3064

OR EQUIVALENT

CL = 100 pF including jig capacitance(30pF for 45/55/70ns parts)

6.2K ohm

1.8K ohm

+5V

CL

2.0V

0.8V

TEST POINTS

INPUT

2.0V

0.8V

OUTPUT

AC TESTING: AC driving levels are 2.4V/0.4V for commercial grade, 3.0V/0V for industrial grade.

Input pulse rise and fall times are < 10ns.

AC driving levels

1.5V

TEST POINTS

INPUT

1.5V

OUTPUT

AC TESTING: (1) AC driving levels are 3.0V/0V for both commercial grade and industrial grade.

Input pulse rise and fall times are < 10ns.

(2) For MX27C256-45, MX27C256-55, MX27C256-70.

AC driving levels