Cypress CY7C1570V18 Manual De Usuario
CY7C1566V18, CY7C1577V18
CY7C1568V18, CY7C1570V18
CY7C1568V18, CY7C1570V18
Document Number: 001-06551 Rev. *E
Page 20 of 28
Maximum Ratings
Exceeding maximum ratings may impair the useful life of the
device. These user guidelines are not tested.
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
DD
Relative to GND ........–0.5V to +2.9V
Supply Voltage on V
DDQ
Relative to GND.......–0.5V to +V
DD
DC Applied to Outputs in High-Z ........ –0.5V to V
DDQ
+ 0.3V
DC Input Voltage
.............................. –0.5V to V
DD
+ 0.3V
Current into Outputs (LOW) ........................................ 20 mA
Static Discharge Voltage (MIL-STD-883, M. 3015)... >2001V
Latch up Current..................................................... >200 mA
Operating Range
Range
Ambient
Temperature (T
A
)
V
DD
V
DDQ
Commercial
0°C to +70°C
1.8 ± 0.1V
1.4V to
V
DD
Industrial
–40°C to +85°C
Electrical Characteristics
Over the Operating Range
DC Electrical Characteristics
Parameter
Description
Test Conditions
Min
Typ
Max
Unit
V
DD
Power Supply Voltage
1.7
1.8
1.9
V
V
DDQ
IO Supply Voltage
1.4
1.5
V
DD
V
V
OH
Output HIGH Voltage
Note 17
V
DDQ
/2 – 0.12
V
DDQ
/2 + 0.12
V
V
OL
Output LOW Voltage
Note 18
V
DDQ
/2 – 0.12
V
DDQ
/2 + 0.12
V
V
OH(LOW)
Output HIGH Voltage
I
OH
= –0.1 mA, Nominal Impedance
V
DDQ
– 0.2
V
DDQ
V
V
OL(LOW)
Output LOW Voltage
I
OL
= 0.1 mA, Nominal Impedance
V
SS
0.2
V
V
IH
Input HIGH Voltage
V
REF
+ 0.1
V
DDQ
+ 0.15
V
V
IL
Input LOW Voltage
–0.15
V
REF
– 0.1
V
I
X
Input Leakage Current
GND
≤ V
I
≤ V
DDQ
–2
2
μA
I
OZ
Output Leakage Current
GND
≤ V
I
≤ V
DDQ,
Output Disabled
–2
2
μA
V
REF
Input Reference Voltage
Typical Value = 0.75V
0.68
0.75
0.95
V
I
DD
V
DD
Operating Supply
V
DD
= Max,
I
OUT
= 0 mA,
f = f
MAX
= 1/t
CYC
400MHz
(x8)
1400
mA
(x9)
1400
(x18)
1400
(x36)
1400
375MHz
(x8)
1300
mA
(x9)
1300
(x18)
1300
(x36)
1300
333MHz
(x8)
1200
mA
(x9)
1200
(x18)
1200
(x36)
1200
300MHz
(x8)
1100
mA
(x9)
1100
(x18)
1100
(x36)
1100
Notes
15. Overshoot: V
IH
(AC) < V
DDQ
+ 0.3V (pulse width less than t
CYC
/2). Undershoot: V
IL
(AC) >
−
0.3V (pulse width less than t
CYC
/2).
16. Power up: assumes a linear ramp from 0V to V
DD
(min) within 200 ms. During this time V
IH
< V
DD
and V
DDQ
< V
DD
.
17. Outputs are impedance controlled. I
OH
= –(V
DDQ
/2)/(RQ/5) for values of 175
Ω < RQ < 350Ω.
18. Outputs are impedance controlled. I
OL
= (V
DDQ
/2)/(RQ/5) for values of 175
Ω < RQ < 350Ω.
19. V
REF
(min) = 0.68V or 0.46V
DDQ
, whichever is larger. V
REF
(max) = 0.95V or 0.54V
DDQ
, whichever is smaller.
20. The operation current is calculated with 50% read cycle and 50% write cycle.