Cypress CY7C144 Manuel D’Utilisation

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CY7C145, CY7C144
Document #: 38-06034  Rev. *D
Page 4 of 21
Maximum Ratings
Exceeding maximum ratings may impair the useful life of the
device. These user guidelines are not tested.
Storage Temperature 
..................................... −65°C to +150°C
Ambient Temperature with
Power Applied
.................................................. −55°C to +125°C
Supply Voltage to Ground Potential
.................−0.5V to +7.0V
DC Voltage Applied to Outputs
in High Z State
.....................................................−0.5V to +7.0V
DC Input Voltage
..............................................−0.5V to +7.0V
Output Current into Outputs (LOW)............................. 20 mA
Static Discharge Voltage...........................................  >2001V
(per MIL-STD-883, Method 3015)
Latch-Up Current ....................................................  >200 mA
Operating Range
Range
Ambient
Temperature
V
CC
Commercial
0
°
C to +70
°
C 5V 
± 10%
Industrial
−40
°
C to +85
°
C 5V 
± 10%
Electrical Characteristics 
Over the Operating Range
Parameter
Description
Test Conditions
7C144-15
7C145-15
7C144-25
7C145-25
Unit
Min
Max
Min
Max
V
OH
Output HIGH Voltage
V
CC
 = Min., I
OH
 = 
−4.0 mA
2.4
2.4
V
V
OL
Output LOW Voltage
V
CC
 = Min., I
OL
 = 4.0 mA
0.4
0.4
V
V
IH
Input HIGH Voltage
2.2
2.2
V
V
IL
Input LOW Voltage
0.8
0.8
V
I
IX
Input Leakage Current
GND < V
I
 < V
CC
−10
+10
−10
+10
μA
I
OZ
Output Leakage Current
Outputs Disabled, GND < V
O
 < V
CC
−10
+10
−10
+10
μA
I
CC
Operating Current
V
CC
 = Max., I
OUT
 = 0 mA
Outputs Disabled
Commercial
220
180
mA
Industrial
190
I
SB1
Standby Current
(Both Ports TTL Levels)
CE
L
 and CE
R
 > V
IH
,
f = f
MAX
Commercial
60
40
mA
Industrial
50
I
SB2
Standby Current
(One Port TTL Level)
CE
L
 or CE
R
 > V
IH
,
f = f
MAX
Commercial
130
110
mA
Industrial
120
I
SB3
Standby Current
(Both Ports CMOS Levels)
Both Ports 
CE and CE
R
 > V
CC
 – 0.2V,
V
IN
 > V
CC
 – 0.2V
or V
IN
 < 0.2V, f = 0
Commercial
15
15
mA
Industrial
30
I
SB4
Standby Current
(One Port CMOS Level)
One Port
CE
L
 or CE
R
 > V
CC
 – 0.2V,
V
IN
 > V
CC
 – 0.2V or 
V
IN
 < 0.2V, Active
Port Outputs, f = f
MAX
Commercial
125
100
mA
Industrial
115
Notes
5. The Voltage on any input or I/O pin cannot exceed the power pin during power-up.
6. Pulse width < 20 ns.
7. f
MAX
 = 1/t
RC
 = All inputs cycling at f = 1/t
RC
 (except output enable). f = 0 means no address or control lines change. This applies only to inputs at CMOS level standby 
I
SB3
.