Cypress CY14B256K Manual Do Utilizador

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CY14B256K
Document Number: 001-06431  Rev. *H
Page 15 of 28
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 on V
CC
 Relative to GND ..........–0.5V to 4.1V
Voltage Applied to Outputs
in High Z State ....................................... –0.5V to V
CC
 + 0.5V
Input Voltage.............................................–0.5V to Vcc+0.5V
Transient Voltage (<20 ns) on 
Any Pin to Ground Potential .................. –2.0V to V
CC
 + 2.0V
Package Power Dissipation 
Capability (T
A
 = 25°C) ................................................... 1.0W
Surface Mount Pb Soldering
Temperature (3 Seconds) .......................................... +260
°C
DC Output Current (1 output at a time, 1s duration) ... 15 mA
Static Discharge Voltage..........................................  > 2001V
(MIL-STD-883, Method 3015)
Latch Up Current ...................................................  > 200 mA
Operating Range
Range
Ambient Temperature
V
CC
Commercial
0
°C to +70°C
2.7V to 3.6V
Industrial
–40
°C to +85°C
2.7V to 3.6V
DC Electrical Characteristics
Over the Operating Range (VCC = 2.7V to 3.6V) 
Parameter
Description
Test Conditions
Min
Max
Unit
I
CC1
Average V
CC
 Current t
RC
 = 25 ns
t
RC
 = 35 ns
t
RC
 = 45 ns
Dependent on output loading and cycle rate. 
Values obtained without output loads.
I
OUT
 = 0 mA.
Commercial
65
55
50
mA
mA
Industrial
70
60
55 
mA
mA
I
CC2
Average V
CC 
Current 
during STORE
All Inputs Do Not Care, V
CC
 = Max
Average current for duration t
STORE
3
mA
I
CC3
Average V
CC
 Current 
at t
AVAV 
= 200 ns, 3V, 
25°C Typical
WE > (V
CC
 – 0.2V). All other inputs cycling.
Dependent on output loading and cycle rate. 
Values obtained without output loads.
10
mA
I
CC4
Average V
CAP
 
Current during 
AutoStore Cycle
All Inputs Do Not Care, V
CC
 = Max
Average current for duration t
STORE
3
mA
I
SB
V
CC
 Standby Current WE > (V
CC
 – 0.2V). All others V
IN 
< 0.2V or > (V
CC
 – 0.2V). 
Standby current level after nonvolatile cycle is complete.
Inputs are static. f = 0 MHz.
3
mA
I
IX
Input Leakage 
Current
V
CC
 = Max, V
SS
 < V
IN 
< V
CC
-1
+1
μA
I
OZ
Off State Output 
Leakage Current
V
CC
 = Max, V
SS
 < V
IN 
< V
CC
, CE or OE > V
IH
-1
+1
μA
V
IH
Input HIGH Voltage
2.0
V
CC
 + 0.5
V
V
IL
Input LOW Voltage
V
SS
 – 0.5
0.8
V
V
OH
Output HIGH Voltage I
OUT
 = –2 mA
2.4
V
V
OL
Output LOW Voltage I
OUT
 = 4 mA
0.4
V
V
CAP
Storage Capacitor
Between V
CAP 
pin and V
SS
, 5V Rated
17
120
μF
Notes
8. The HSB pin has IOUT = –10 
μA for VOH of 2.4V, this parameter is characterized but not tested.
9. The INT pin is open drain and does not source or sink current when Interrupt register bit D3 is low.