W39V080FA

Publication Release Date: Dec. 13, 2005

- 21 -

Revision A5

Programmer Interface Mode AC Characteristics, continued

8.3 Read Cycle Timing Parameters

W39V080FA

PARAMETER

SYMBOL

MIN.

MAX.

UNIT

Read Cycle Time

350

-

nS

Row / Column Address Set Up Time

50

-

nS

Row / Column Address Hold Time

50

-

nS

Address Access Time

-

200

nS

Output Enable Access Time

-

75

nS

#OE Low to Active Output

0

-

nS

#OE High to High-Z Output

-

35

nS

Output Hold from Address Change

0

-

nS

8.4 Write Cycle Timing Parameters

PARAMETER

SYMBOL

MIN.

TYP.

MAX.

UNIT

Reset Time

1

-

-

μS

Address Setup Time

50

-

-

nS

Address Hold Time

50

-

-

nS

R/#C to Write Enable High Time

50

-

-

nS

#WE Pulse Width

100

-

-

nS

#WE High Width

100

-

-

nS

Data Setup Time

50

-

-

nS

Data Hold Time

50

-

-

nS

#OE Hold Time

0

-

-

nS

Byte programming Time

-

9

250

μS

-

0.9

6

S

Program/Erase Valid to RY/#BY Delay

90

-

-

nS

Note: All AC timing signals observe the following guidelines for determining setup and hold times:

(a) High level signal's reference level is input high and

(b) low level signal's reference level is input low. Ref. to the AC testing condition.

(c) Exclude 00H pre-program prior to erasure. (In the pre-programming step of the embedded erase algorithm, all bytes are

programmed to 00H before erasure

8.5 Data Polling and Toggle Bit Timing Parameters

W39V080FA

PARAMETER

SYMBOL

MIN.

MAX.

UNIT

#OE to Data Polling Output Delay

-

40

nS

#OE to Toggle Bit Output Delay

-

40

nS

Toggle or Polling interval

---

50

-

mS