6

AC Timing Characteristics over Temperature Range

Reference

Number

Symbol

Description

Units

Display Access Time

Write

210

Read

230

ns

Address Setup Time to Chip Enable

10

ns

Write

140

Read

160

ns

Address Hold Time to Chip Enable

20

ns

Chip Enable Recovery Time

60

ns

Write

140

Read

160

ns

Chip Enable Hold Time to Rising Edge of

0ns

100

ns

Data Valid Prior to Rising Edge of Write Signal

50

ns

10

Data Write Hold Time

20

ns

11

Chip Enable Active Prior to Valid Data

160

ns

12

Read Active Prior to Valid Data

75

ns

13

Read Data Float Delay

10

ns

300

ns

Notes:

1. Worst case values occur at an IC junction temperature of 150

°C.

3. Changing the logic levels of the Address lines when CE = “0” may cause erroneous data to be entered into the Character RAM, regardless of the

logic levels of the WR and RD lines.

4. The display must not be accessed until after 3 clock pulses (110

µs min. using the internal refresh clock) after the rising edge of the reset line.