Datasheet

5
ICM7228
Input Leakage Current, I
IL
All Inputs Except Pin 9, ICM7228C,
V
IN
= V
SS
--1--1µA
All Inputs Except Pin 9, ICM7228C,
V
IN
= 5.0V
- - -1 - - -1
Display Scan Rate, f
MUX
Per Digit - 390 - - 390 - Hz
Inter-Digit Blanking Time, t
IDB
210- 2 - - µs
Logical “1” Input Voltage, V
INH
Three Level Input: Pin 9
ICM7228C, Hexadecimal V
DD
= 5V
4.2 - - 4.2 - - V
Floating Input, V
INF
Three Level Input: Pin 9
ICM7228C, Code B, V
DD
= 5V
2.0 - 3.0 2.0 - 3.0 V
Logical “0” Input Voltage, V
INL
Three Level Input: Pin 9
ICM7228C, Shutdown, V
DD
= 5V
--0.8--0.8V
Three Level Input Impedance, Z
IN
V
CC
= 5V, Pin 9 of ICM7228C 50 - - 50 - - kΩ
Logical “1” Input Voltage, V
IH
All Inputs Except, Pin 9 of ICM7228C,
V
DD
= 5V
2.0 - - 2.0 - - V
Logical “0” Input Voltage, V
IL
All Inputs Except, Pin 9 of ICM7228C,
V
DD
= 5V
--0.8--0.8V
SWITCHING SPECIFICATIONS V
DD
= +5.0V ±10%, V
SS
= 0V, V
IL
= +0.4V, V
IH
= +2.4V
Write Pulsewidth (Low), t
WL
200 100 - 250 - - ns
Write Pulsewidth (High), t
WH
850 540 - 1200 - - ns
Mode Hold Time, t
MH
ICM7228A, ICM7228B 0 -65 - 0 - - ns
Mode Setup Time, t
MS
ICM7228A, ICM7228B 250 150 - 250 - - ns
Data Setup Time, t
DS
250 160 - 250 - - ns
Data Hold Time, t
DH
0 -60 - 0 - - ns
Digit Address Setup Time, t
AS
ICM7228C 250 110 - 250 - - ns
Digit Address Hold Time, t
AH
ICM7228C 0 -60 - 0 - - ns
Electrical Specifications V
DD
= +5.0V ±10%, V
SS
= 0V, Unless Otherwise Specified (Continued)
PARAMETER TEST CONDITIONS
T
A
= 25
o
C-40
o
C TO 85
o
C
UNITSMIN TYP MAX MIN TYP MAX