HDSP-2107 Datasheet, PDF (6/16 Pages) Agilent(Hewlett-Packard) – Eight Character 5 mm and 7 mm Smart Alphanumeric Displays

6
Optical Characteristics at 25°C^[1]
V_DD = 5.0 V at Full Brightness
Description
Part
Number
Luminous Intensity
Character Average (#)
Iv (mcd)
Min.
Typ.
AlGaAs
HDSP-2107
5.0
15.0
-2504
HER
HDSP-2112
2.5
7.5
-2502
Orange
HDSP-2110
2.5
7.5
-2500
Yellow
HDSP-2111
2.5
7.5
-2501
High
HDSP-2113
2.5
7.5
Performance
-2503
Green
Peak
Wavelength
λ_Peak
(nm)
645
635
600
583
568
Note: 1. Refers to the initial case temperature of the device immediately prior to measurement.
Dominant
Wavelength
λ_d
(nm)
637
626
602
585
574
AC Timing Characteristics Over Temperature Range (-45°C to +85°C)
4.5 V < V_DD < 5.5 V, unless otherwise specified
Reference
Number
Symbol
Description
Min.^[1]
1
t_ACC
Display Access Time
Write
210
Read
230
2
t_ACS
Address Setup Time to Chip Enable
10
3
t_CE
Chip Enable Active Time^[2,3]
Write
140
Read
160
4
t_ACH
Address Hold Time to Chip Enable
20
5
t_CER
Chip Enable Recovery Time
60
6
t_CES
Chip Enable Active Prior to Rising Edge of ^[2,3]
Write
140
Read
160
7
t_CEH
Chip Enable Hold Time to Rising Edge of
Read/Write Signal^[2,3]
0
8
t_W
Write Active Time
100
9
t_WSU
Data Write Setup Time
50
10
t_WH
Data Write Hold Time
20
11
t_R
Chip Enable Active Prior to Valid Data
160
12
t_RD
Read Active Prior to Valid Data
75
13
t_DF
Read Data Float Delay
10
t_RC
Reset Active Time^[4]
300
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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 and the Write and Chip Enable lines can be
DD
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.