Datasheet

4
Switching Characteristics
Parameter Condition Typ. Max. Units
f
clock
CLOCK Rate 5 MHz
t
PLH
, t
PHL
C
L
= 15 pF 105 ns
Propagation Delay R
L
= 2.4 kΩ
CLOCK to DATA OUT
t
OFF
V
B
(0.4 V) to 4 5 µs
Display OFF
t
ON
V
B
(2.4 V) to 1 2
Display ON
Optical Characteristics at T
A
= 25°C
High Performance Green HCMS-2353
Description Symbol Test Condition Min. Typ.* Max. Units
Peak Luminous Intensity per LED
[6]
I
vPEAK
V
DD
= 5.0 V 2400 3000 µcd
(Character Average) V
COL
= 3.5 V
V
B
= 2.4 V
T
i
= 25°C
[7]
Dominant Wavelength
[8,9]
l
d
574 nm
Peak Wavelength l
PEAK
568 nm
Yellow HCMS-2351
Description Symbol Test Condition Min Typ.* Max. Units
Peak Luminous Intensity per
LED
[6]
(Character Average)
I
vPEAK
V
DD
= 5.0V
V
COL
= 3.5 V
V
B
= 2.4V
Ti = 25°C
[7]
1600 2400 mcd
Dominant Wavelength
[8,9]
l
d
585 nm
Peak Wavelength l
PEAK
583 nm
*All typical values specied at V
DD
= 5.0 V and T
A
= 25°C unless otherwise noted.
Notes:
6. These LED displays are categorized for luminous intensity, with the intensity category designated by a letter code on the back of the package.
7. T
i
refers to the initial case temperature of the display immediately prior to the light measurement.
8. Dominant wavelength, l
d
, is derived from the CIE Chromaticity Diagram, and represents the single wavelength which denes the color of the
device.
9. Categorized for color with the color category designated by a number on the back of the package.
t
WH
t
THL
t
WL
1/f
CLOCK
t
HOLD
t
SETUP
t
PLH
, t
PHL
t
OFF
t
ON
V
IH
V
IL
V
B
V
OH
V
OL
2.4 V
0.4 V
2.0 V
0.8 V
V
IH
V
IL
2.0 V
0.8 V
V
IH
V
IL
2.0 V
0.8 V
CLOCK
DATA IN
DATA OUT
90%
10%
ON (ILLUMINATED)
OFF (NOT ILLUMINATED)
DISPLAY