– 4 –

CXK5V8257BTM/BYM/BM

-70LL

-10LL

Item

Symbol

Unit

Min.

Max.

Min.

Max.

-70LL

-10LL

Item

Symbol

Unit

Min.

Max.

Min.

Max.

70

—

—

—

20

10

5

—

—

—

70

70

35

—

—

—

30

30

100

—

—

—

20

10

10

—

—

—

100

100

50

—

—

—

35

35

ns

ns

ns

ns

ns

ns

ns

ns

ns

Read cycle time

Address access time

Chip enable access time (CE)

Output enable to output valid

Output hold from address change

Chip enable to output in low Z (CE)

Output enable to output in low Z (OE)

Chip disable to output in high Z (CE)

Output disable to output in high Z (OE)

70

60

60

30

0

55

0

0

0

10

—

—

—

—

—

—

—

—

—

—

—

30

100

80

80

35

0

60

0

0

0

10

—

—

—

—

—

—

—

—

—

—

—

35

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

ns

Write cycle time

Address valid to end of write

Chip enable to end of write

Data to write time overlap

Data hold from write time

Write pulse width

Address setup time

Write recovery time (WE)

Write recovery time (CE)

Output active from end of write

Write to output in high Z

• Read cycle (WE = “H”)

HZ

and

referred to as output voltage levels.

• Write cycle

WHZ

is defined as the time required for outputs to turn to high impedance state and is not referred to as

output voltage level.