MX66C256

Rev. 1.1, Jan., 2000

P/N DS0035

4

Macronix America Inc. USA 1338 Ridder Park Dr., San Jose, CA 95131

Tel (408)453-8088

Fax (408)451-0876

www.macronix.com

70

70

50

35

30

AC ELECTRICAL CHARACTERISTICS (over the operating range)

READ CYCLE

SWITCHING WAVEFORMS (READ CYCLE)

D

OUT

ADDRESS

AC TEST CONDITIONS

Input Pulse Levels

Input Rise and Fall Times

Input and Output

Timing Reference Level

5.0/V0V

5ns

2.5V

AC TEST LOADS AND WAVEFORMS

KEY TO SWITCHING WAVEFORMS

WAVEFORM

INPUTS

OUTPUTS

MUST BE

STEADY

MAY CHANGE

FROM H TO L

DON T CARE:

ANY CHANGE

PERMITTED

DOES NOT

APPLY

MUST BE

STEADY

WILL BE

CHANGE

FROM H TO L

CHANGE :

STATE

UNKNOWN

CENTER

LINE IS HIGH

IMPEDANCE

¡¨OFF ¡¨STATE

MAY CHANGE

FROM L TO H

WILL BE

CHANGE

FROM L TO H

,

Ω

667

THEVENIN EQUIVALENT

ALL INPUT PULSES

→

10%

←

90%

GND

→

← 5ns

90%

10%

1.73V

OUTPUT

FIGURE 2

5.0V

OUTPUT

INCLUDING

JIG AND

SCOPE

Ω

1923

Ω

1020

5PF

FIGURE 1B

5.0V

OUTPUT

INCLUDING

JIG AND

SCOPE

Ω

1923

Ω

1020

100PF

FIGURE 1A

JEDEC

PARAMETER

NAME

PARAMETER

NAME

DESCRIPTION

MX66C256-70

MIN.

TYP.

MAX.

UNIT

Read Cycle Time

t

AVAX

t

AVQV

t

ELQV

t

GLQV

t

EHQZ

t

GHQZ

t

AZQX

t

GLQX

t

ELQX

t

RC

t

AA

t

ACS

t

OE

t

CLZ

t

OLZ

t

CHZ

t

OHZ

t

OH

Address Access Time

Chip Select Access Time

Chip Select to Output Low Z

Output Enable to Output in Low Z

Chip Deselect to Output in High Z

Output Disable to Output in High Z

ns

ns

ns

ns

ns

ns

ns

ns

Output Enable to Output Valid

ns

70

10

10

0

0

10

Output Disable to Output Address Change

MX66C256-10

MIN.

TYP.

MAX.

100

10

10

0

0

10

100

100

50

35

30