ICM7224 Intersil Corporation, ICM7224 Datasheet - Page 3

• Manufacturer Part Number: ICM7224
• Description: 41/2 Digit LCD Display Counter
• Manufacturer: Intersil Corporation

Absolute Maximum Ratings
Supply Voltage (V
Input Voltage (Any Terminal) (Note 1) . . . (V
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . -25
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTES:
Electrical Specifications
Timing Waveforms
1. Due to the SCR structure inherent in the CMOS process, connecting any terminal to voltages greater than V
2. θ
Operating Current, I
Operating Supply Voltage Range
(V
OSClLLATOR Input Current, I
Segment Rise/Fall Time, t
BackPlane Rise/Fall Time, t
Oscillator Frequency, f
Backplane Frequency, f
Input Pullup Currents, I
Input High Voltage, V
Input Low Voltage, V
COUNT Input Threshold, V
COUNT Input Hysteresis, V
Output High Current, I
Output Low Current, I
Count Frequency, f
STORE, RESET Minimum Pulse Width, t
DD -
cause destructive device latchup. For this reason, it is recommended that no inputs from sources operating on a different power supply
be applied to the device before its supply is established, and that in multiple supply systems, the supply to the ICM7224 be turned on first.
JA
V
is measured with the component mounted on an evaluation PC board in free air.
SS
), V
SUPPLY
PARAMETER
DD
COUNT
- V
DD
IL
IH
OL
OH
OSC
SS
P
BP
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.5V
r
, t
CT
CH
r
, t
f
OSCI
f
OFF SEGMENTS
INPUT/OUTPUT
ON SEGMENTS
V
OSCILLATOR
DD
FREQUENCY
BACKPLANE
= 5V, V
DD
S
, t
FIGURE 1. ICM7224 DISPLAY WAVEFORMS
+ 0.3V) to (V
r
SS
Test Circuit, Display Blank
Pin 36
C
C
Pin 36 Floating
Pin 36 Floating
Pins 29, 31, 33, 34, V
Pins 29, 31, 33, 34
Pins 29, 31, 33, 34
CARRY Pin 28
Leading Zero Blanking OUT Pin 30
V
CARRY Pin 28
Leading Zero Blanking OUT Pin 30
V
4.5V < V
= 0V, T
OUT
OUT
LOAD
LOAD
o
= V
= +3V
C to 85
SS
TEST CONDITIONS
A
= 200pF
= 5000pF
DD
DD
= 25
- 0.3V)
ICM7224
< 6V
- 3V
o
o
C
C, Unless Otherwise Indicated
64 CYCLES
3
Thermal Information
Thermal Resistance (Typical, Note 2)
Maximum Junction Temperature. . . . . . . . . . . . . . . . . . . . . . . 150
Maximum Storage Temperature Range . . . . . . . . . . -65
Maximum Lead Temperature (Soldering, 10s) . . . . . . . . . . . . 300
IN
PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
128 CYCLES
= V
DD
- 3V
64 CYCLES
-350
MIN
350
3
3
0
3
-
-
-
-
-
-
-
-
-
-
-500
TYP
150
500
0.5
1.5
0.5
10
±2
19
10
2
-
-
-
-
-
DD
or less than V
MAX
±10
50
15
6
1
-
-
-
-
-
-
-
-
-
-
-
o
θ
C to 150
JA
SS
UNIT
MHz
kHz
µA
µA
Hz
µA
µA
µA
µs
µs
µs
(
50
V
V
V
V
V
may
o
C/W)
o
o
o
C
C
C