A.C. Characteristics

Read cycle

±10%, GND=0V, Ta=–40°C to +85°C)

Symbol

Parameter

Min.

Typ.

Max.

Unit

Read Cycle Time

70

36

—

ns

Address Access Time

—

35

70

ns

Chip Select Access Time

—

35

70

ns

Output Enable to Output Valid

—

12

40

ns

Output Hold from Address Change

10

12

—

ns

Chip Enable to Output in Low-Z

10

—

—

ns

Output Enable to Output in Low-Z

10

—

—

ns

Output Disable to Output in High–Z

0

—

30

ns

Chip Disable to Output in High-Z

0

—

30

ns

Note: 1. A read occurs during the overlap of a low CS and a high WE

Write cycle

±10%, GND=0V, Ta=–40°C to +85°C)

Symbol

Parameter

Min.

Typ.

Max.

Unit

Write Cycle Time

70

36

—

ns

Data Set up Time

20

18

—

ns

Data Hold Time from Write Time

5

0

—

ns

Address Valid to End of Write

50

15

—

ns

Address Setup Time

20

14

ns

Write Pulse Width

25

0

—

ns

Write Recovery Time

5

—

—

ns

Chip Selection to End of Write

35

—

—

ns

Output Active from End of Write

5

—

—

ns

Output Disable to Output in High-Z

0

—

40

ns

Write to Output in High-Z

0

—

50

ns

Note: 1. A write cycle occurs during the overlap of a low CS and a low WE

2. OE may be both high and low in a write cycle

7. When I/O pins are data output mode, don’t force inverse signals to those pins

HT6116-70

4

3rd July ’97