4
Absolute Maximum Ratings
Supply Voltage V
DD
to Ground ........................................ -0.3 V to 7.0 V
Data Input, Clock, Data Output, V
B
....................................-0.3 V to V
DD
Column Input Voltage, V
COL
............................................. -0.3 V to V
DD
Free Air Operating Temperature, T
A
............................. -40
°
C to +85
°
C
Storage Temperature, T
S
............................................ -55
°
C to +100
°
C
Maximum Allowable Package Power Dissipation, P
D
at 55
°
C
[1,2]
HCMS-270X........................................................................... 0.837 W
HCMS-271X........................................................................... 1.674 W
HCMS-272X (per 8 character row)........................................ 1.674 W
(total per package ........................................... 3.348 W)
Maximum Solder Temperature
1.59 mm (0.063") Below Seating Plane, t < 5 sec..................... 260
°
C
ESD Protection @ 1.5 k
, 100 pF ....................... V
Z
= 4 kV (each pin)
Notes:
1. Maximum allowable power dissipation is derived from V
DD
= 5.25 V and V
B
= 2.4 V,
V
COL
= 3.5 V, 20 LEDs illuminated per character, 20% on-time duty factor.
2. See Figure 1 for power derating. Thermal resistance from device V
DD
pin(s) to
ambient through the PC board mounting assembly is assumed to be R
θ
PC-A
≤
35
°
C/W
per device for the HSMS-270X,
≤
17.5
°
C/W per device for the HCMS-271X, and
≤
17.5
°
C/W per row for the HCMS-272X.
Recommended Operating Conditions, T
A
= -40
°
C to +85
°
C
Description
Supply Voltage
Data Out Current, Low State
Data Out Current, High State
Column Input Voltage
Setup Time
Hold Time
Clock Pulse Width High
Clock Pulse Width Low
Clock High to Low Transition
Clock Frequency
Symbol
V
DD
I
OL
I
OH
V
COL
t
SETUP
t
HOLD
t
WH(CLOCK)
t
WL(CLOCK)
t
THL
f
CLOCK
Minimum
4.75
Nominal
5.0
Maximum
5.25
1.6
-0.5
3.5
Unit
V
mA
mA
V
ns
ns
ns
ns
ns
MHZ
2.75
10
25
50
50
3.0
200
5
Electrical Characteristics, -40
°
C to +85
°
C
Parameter
Supply Current, Dynamic
[2]
HCMS-270X
HCMS-271X
HCMS-272X (per row)
Supply Current, Static
[3]
HCMS-270X
HCMS-271X
HCMS-272X (per row)
HCMS-270X
HCMS-271X
HCMS-272X (per row)
Symbol
I
DDD
Test Conditions
V
DD
= 5.25 V
f
CLOCK
= 5 MHz
V
B
= 0.4 V
Min.
Typ.
[1]
Max.
Unit
6.2
12.4
15.6
7.8
15.6
15.6
mA
I
DDSoff
V
DD
= 5.25 V
V
B
= 0.4 V
1.8
3.6
3.6
2.2
4.4
4.4
2.6
5.2
5.2
6.0
12.0
12.0
mA
I
DDSon
V
DD
= 5.25 V
V
B
= 2.4 V