6

Optical Characteristics at 25

Luminous Intensity

Peak

Dominant

Character Average (#)

Wavelength

Wavelength

Part

Iv (mcd)

λ

Peak

λ

d

Description

Number

Min.

Typ.

(nm)

(nm)

AlGaAs

HDSP-2107

5.0

15.0

645

637

-2504

HER

HDSP-2112

2.5

7.5

635

626

-2502

Orange

HDSP-2110

2.5

7.5

600

602

-2500

Yellow

HDSP-2111

2.5

7.5

583

585

-2501

High

HDSP-2113

2.5

7.5

568

574

Performance

-2503

Green

Note: 1. Refers to the initial case temperature of the device immediately prior to measurement.

[1]

AC Timing Characteristics Over Temperature Range (-45

4.5 V < V

Reference

Number

Symbol

Description

Units

1t

ACC

Display Access Time

Write

210

Read

230

ns

2t

ACS

Address Setup Time to Chip Enable

10

ns

3t

CE

Write

140

Read

160

ns

4t

ACH

Address Hold Time to Chip Enable

20

ns

5t

CER

Chip Enable Recovery Time

60

ns

6t

CES

Write

140

Read

160

ns

7t

CEH

Chip Enable Hold Time to Rising Edge of

0ns

8t

W

Write Active Time

100

ns

9t

WSU

Data Write Setup Time

50

ns

10

t

WH

Data Write Hold Time

20

ns

11

t

R

Chip Enable Active Prior to Valid Data

160

ns

12

t

RD

Read Active Prior to Valid Data

75

ns

13

t

DF

Read Data Float Delay

10

ns

t

RC

300

ns

Notes:

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

° C.

2. For designers who do not need to read from the display, the Read line can be tied to V

DD

and the Write and Chip Enable lines can be

tied together.

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.