AS7C33512NTD16A
AS7C33512NTD18A
®
Key to switching waveforms
Rising input
Falling input
Undefined/don’t care
Timing waveform of read/write cycle
ꢂꢁꢃ
ꢂꢁꢄꢁ
ꢂꢁꢅ
ꢁꢅꢉ
ꢂꢁꢆꢀꢇ
ꢂꢁꢆꢀꢃ
ꢁꢆꢀ
ꢁꢆꢜ
t
ꢂꢁꢇꢇ
ꢁꢇꢃ
ꢁꢆꢊꢋꢌꢁꢆꢍ
ꢂꢎꢏꢐꢃ
ꢎꢏꢐꢑꢅꢏ
ꢂꢓꢇ
ꢂꢓꢃ
ꢒꢑꢓ
ꢂꢓꢇ
ꢂꢓꢃ
ꢛꢓꢘ
ꢇꢎꢇ
ꢂꢎꢃ
ꢎꢝ
ꢎ
ꢎꢞ
ꢎ!
ꢀꢁ
ꢎꢜ
ꢎꢍ
ꢎꢏꢏꢒꢆꢇꢇ
ꢂꢃꢚꢁ
ꢂꢏꢇ
ꢂꢁꢏ
ꢂꢈꢆ
ꢂꢅꢚꢁ
ꢂꢏꢃ
ꢀꢁꢂꢅꢄ
ꢆꢁꢂꢇꢄ
ꢀꢁꢂꢃꢄ
ꢀꢁꢂꢈꢄ
ꢀꢁꢂꢃÝꢄꢅꢆ
ꢆꢁꢂꢉꢄ
ꢆꢁꢂꢊꢄ
ꢀꢁꢂꢃÝ0ꢄꢅ
ꢏꢑꢔ
"#"$%#ꢘ$
ꢂꢈꢃ
ꢂꢃꢚꢈꢆ
ꢂꢅꢚꢈꢆ
ꢈꢆ
ꢀꢁꢂꢅꢄ
ꢆꢁꢂꢇꢄ
ꢏꢑꢔ
ꢀꢁꢂꢃꢄ
ꢀꢁꢂꢈꢄ
ꢆꢁꢂꢉꢄ
ꢆꢁꢂꢊꢄ
ꢀꢁꢂꢃÝꢆꢄꢅ
ꢀꢁꢂꢈꢋꢌꢃꢄ
&%ꢕ'ꢂ()ꢕ*+(
BURST
READ
Q(A4Ý01)
WRITE
D(A1)
WRITE
D(A5)
READ
Q(A6) D(A7)
WRITE
READ
Q(A3)
DSEL
BURST
WRITE
D(A2Ý01)
WRITE
D(A2)
ꢁꢕꢖꢖꢗꢘꢙ
READ
Q(A4)
Note: Ý = XOR when LBO = HIGH/No Connect; Ý = ADD when LBO = LOW.
BW[a:b] is don’t care.
3/11/02; v.1.8H
Alliance Semiconductor
8 of 12
ISSI [ INTEGRATED SILICON SOLUTION, INC ]
