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ICM7228 Datasheet, PDF (5/17 Pages) Intersil Corporation – 8-Digit, Microprocessor- Compatible, LED Display Decoder Driver
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ICM7228
Electrical Specifications VDD = +5.0V ±10%, VSS = 0V, Unless Otherwise Specified
INDUSTRIAL TEMPERATURE RANGE, IPI, IJI, LBI DEVICES (Continued)
TA = 25oC
PARAMETER
TEST CONDITIONS
MIN TYP MAX
Display Scan Rate, fMUX
Inter-Digit Blanking Time, tIDB
Logical “1” Input Voltage, VINH
Floating Input, VINF
Logical “0” Input Voltage, VINL
Three Level Input Impedance, ZIN
Per Digit
Three Level Input: Pin 9
ICM7228C, ICM7228D Hexadecimal
VDD = 5V
Three Level Input: Pin 9
ICM7228C, ICM7228D Code B
VDD = 5V
Three Level Input: Pin 9
ICM7228C, ICM7228D Shutdown
VDD = 5V
VCC = 5V
Pin 9 of ICM7228C and ICM7228D
-
390
-
2
10
-
4.2
-
-
2.0
-
3.0
-
-
0.8
50
-
-
Logical “1” Input Voltage, VIH
All Inputs Except
Pin 9 of ICM7228C, ICM7228D
VDD = 5V
2.0
-
-
Logical “0” Input Voltage, VIL
All Inputs Except
Pin 9 of ICM7228C, ICM7228D
VDD = 5V
-
-
0.8
SWITCHING SPECIFICATIONS VDD = +5.0V ±10%, VSS = 0V, VIL = +0.4V, VIH = +2.4V
Write Pulsewidth (Low), tWL
200 100
-
Write Pulsewidth (High), tWH
850 540
-
Mode Hold Time, tMH
ICM7228A, ICM7228B
0
-65
-
Mode Setup Time, tMS
ICM7228A, ICM7228B
250 150
-
Data Setup Time, tDS
250 160
-
Data Hold Time, tDH
0
-60
-
Digit Address Setup Time, tAS
ICM7228C, ICM7228D
250 110
-
Digit Address Hold Time, tAH
ICM7228C, ICM7228D
0
-60
-
-40oC TO 85oC
MIN TYP MAX
-
390
-
2
-
-
4.2
-
-
2.0
-
3.0
-
-
0.8
50
-
-
2.0
-
-
-
-
0.8
250
-
-
1200 -
-
0
-
-
250
-
-
250
-
-
0
-
-
250
-
-
0
-
-
UNITS
Hz
µs
V
V
V
kΩ
V
V
ns
ns
ns
ns
ns
ns
ns
ns
Electrical Specifications VDD = +5.0V ±10%, VSS = 0V, Unless Otherwise Specified
MILITARY TEMPERATURE RANGE, MJI, DEVICES
PARAMETER
TEST CONDITIONS
TA = 25oC
MIN TYP MAX
Supply Voltage Range, VSUPPLY
Operating
Power Down Mode
4
-
6
2
-
-
Quiescent Supply Current, IQ
Shutdown, ICM7228A, IMC7228B
Shutdown, 7228C, 7228D
-
1
100
-
2.5 100
Operating Supply Current, IDD
Common Anode, ICM7228A/C
Segments = ON; Outputs = OPEN
-
200 450
Common Anode, ICM7228A/C
Segments = OFF; Outputs = OPEN
-
100 450
Common Cathode, ICM7228B/D
Segments = ON; Outputs = OPEN
-
250 450
Common Cathode, ICM7228B/D
Segments = OFF; Outputs = OPEN
-
175 450
-55oC TO 125oC
MIN TYP MAX
4
-
6
2
-
-
-
1
100
-
2.5 100
-
200 550
UNITS
V
V
µA
µA
µA
-
100 450
µA
-
250 550
µA
-
175 450
µA
9-21
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