W78E52C/W78E052C

Publication Release Date: November 6, 2006

- 15 -

Revision A4

Port Access Cycle

PARAMETER

SYMBOL

MIN.

TYP.

MAX.

UNIT

Port Input Setup to ALE Low

-

-

nS

Port Input Hold from ALE Low

0

-

-

nS

Port Output to ALE

-

-

nS

Note:

Ports are read during S5P2, and output data becomes available at the end of S6P2. The timing data are referenced to

ALE, since it provides a convenient reference.

Program Operation

PARAMETER

SYMBOL

MIN.

TYP.

MAX.

UNIT

2.0

-

-

µS

Data Setup Time

2.0

-

-

µS

Data Hold Time

2.0

-

-

µS

Address Setup Time

2.0

-

-

µS

Address Hold Time

0

-

-

µS

CE

Program

Pulse

Width

for

Program Operation

290

300

310

µS

OECTRL Setup Time

2.0

-

-

µS

OECTRL Hold Time

2.0

-

-

µS

OE

Setup Time

2.0

-

-

µS

OE

High to Output Float

0

-

130

nS

Data Valid from OE

-

-

150

nS

Note: