ICM7226 Intersil Corporation, ICM7226 Datasheet - Page 4

• Manufacturer Part Number: ICM7226
• Description: 8-Digit Multi-Function Frequency Counter/Timer
• Manufacturer: Intersil Corporation

Absolute Maximum Ratings
Maximum Supply Voltage (V
Maximum Digit Output Current . . . . . . . . . . . . . . . . . . . . . . . . 400mA
Maximum Segment Output Current . . . . . . . . . . . . . . . . . . . . . 60mA
Voltage On Any Input or
Output 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
Operating Supply Current, I
Supply Voltage Range (V
Maximum Frequency INPUT A, Pin 40, f
Maximum Frequency INPUT B, Pin 2, f
Minimum Separation INPUT A to INPUT B,
Time Interval Function
Oscillator Frequency and External Oscillator Frequency,
f
Oscillator Transconductance, g
Multiplex Frequency, f
Time Between Measurements
Input Rate of Charge, dV
Input Voltages: Pins 2, 19, 33, 39, 40, 35
Pins 2, 39, 40, Input Leakage, A, B, I
Input Resistance to V
Input Resistance to V
Output Current
ICM7226A
Segment Driver: Pins 8-11, 13-16
1. Destructive latchup may occur if input signals are applied before the power supply is established or if inputs or outputs are forced to
2.
OSC
Input Low Voltage, V
Input High Voltage, V
Low Output Current, Pins 3, 5-7, 17, 18, 32, 38, I
High Output Current, Pins 5-7, 17, 18, 32, H
High Output Current, Pins 3, 38, H
Low Output Current, I
High Output Current, I
voltages exceeding V
JA
is measured with the component mounted on an evaluation PC board in free air.
PARAMETER
DD
SS
MUX
IL
lH
DD
Pin 31, R
IN
Pins 19, 33, R
OL
DD
OH
/dt
DD
DD
or V
-V
- V
SS
M
SS
SS
), V
IN
V
by 0.3V.
DD
). . . . . . . . . . . . . . . . . . . . 6.5V
ILK
SUPPLY
OL
B(MAX)
IN
= 5.0V, T
A(MAX)
DD
OL
+0.3V to V
A
= 25
ICM7226A, ICM7226B
OL
o
o
C, Unless Otherwise Specified
C to 85
Display Off, Unused Inputs to V
-25
INPUT B Frequency at f
-25
4.75V < V
Function = Frequency, Ratio,
Unit Counter
Function = Period, Time Interval
-25
4.75V < V
-25
4.75V < V
-25
4.75V < V
V
f
f
Inputs A, B
-25
V
V
V
V
V
V
V
SS
OSC
OSC
DD
IN
IN
OL
OH
OH
O
O
o
o
o
o
o
o
= +1.5V
= V
-0.3V
= V
= +1.0V
C to 85
C to 85
C to 85
C to 85
C to 85
C to 85
= +0.4V
-4.75V, T
= +2.4V
= V
= 10MHz
= 10MHz
o
DD
C
DD
DD
9-18
TEST CONDITIONS
DD
DD
DD
DD
-1.0V
-1.0V
o
o
o
o
o
o
-0.8V
Thermal Information
Thermal Resistance (Typical, Note 2)
Maximum Junction Temperature
Maximum Storage Temperature Range . . . . . . . . . .-55
Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . . 300
C, INPUT A,
C
C
C
C
C
< 6.0V, Figure 9
< 6.0V, Figure 10
< 6.0V, Figure 1
< 6.0V
A
CERDIP Package . . . . . . . . . . . . . . . .
PDIP Package . . . . . . . . . . . . . . . . . . .
CERDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150
= 85
o
C
MAX
SS
2000
4.75
MIN
250
100
400
100
265
2.5
2.5
0.1
3.5
10
50
25
-
-
-
-
-
-
-
TYP
500
200
400
100
100
14
15
35
2
-
-
-
-
-
-
-
-
-
-
-
-
JA
(
45
50
o
C/W)
MAX
6.0
1.0
10
20
5
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
o
C to 150
JC
UNITS
mV/ s
N/A
(
MHz
MHz
MHz
MHz
mA
mA
o
9
Hz
ms
ns
k
k
V
V
V
C/W)
S
A
A
A
A
A
o
o
o
o
C
C
C
C