9

Rev. C

03/21/2008

IS61C25616AL

IS61C25616AS

IS64C25616AL

IS64C25616AS

Notes:

1. WRITE is an internally generated signal asserted during an overlap of the LOW states on the

CE and WE inputs and at least

one of the

LB and UB inputs being in the LOW state.

2. WRITE = (

AC WAVEFORMS

WRITE CYCLE NO. 1 (

WE

WE

WE

WE

DATA UNDEFINED

VALID ADDRESS

HIGH-Z

ADDRESS

CE

UB, LB

WE

UB_CEWR1.eps