Cypress CY7C1917CV18 Manual De Usuario

Document Number: 001-07161 Rev. *D

Page 21 of 31

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

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

Commercial

0°C to +70°C 

1.8 ± 0.1V

1.4V to 

V

DD

Industrial

–40°C to +85°C

Over the Operating Range 

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 16

V

DDQ

/2 – 0.12

V

DDQ

/2 + 0.12

V

V

OL

Output LOW Voltage

Note 17

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

 

+ 0.3

V

V

IL

Input LOW Voltage

–0.3

V

REF 

– 0.1

V

I

X

Input Leakage Current 

GND 

≤ V

I

 

≤ V

DDQ

−5

5

μA

I

OZ

Output Leakage Current

GND 

≤ V

I

 

≤ V

DDQ, 

Output Disabled

−5

5

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

300 MHz

(x8)

770

mA

(x9)

770

(x18)

810

(x36)

890

278 MHz

(x8)

720

mA

(x9)

720

(x18)

760

(x36)

830

250 MHz

(x8)

670

mA

(x9)

670

(x18)

700

(x36)

765

15. 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

.

16. Outputs are impedance controlled. I

OH 

= –(V

DDQ

/2)/(RQ/5) for values of 175

Ω < RQ < 350Ω.

17. Outputs are impedance controlled. I

OL 

= (V

DDQ

/2)/(RQ/5) for values of 175

Ω < RQ < 350Ω.

18. V

REF

(min) = 0.68V or 0.46V

DDQ

, whichever is larger, V

REF

(max) = 0.95V or 0.54V

DDQ

, whichever is smaller.

19. The operation current is calculated with 50% read cycle and 50% write cycle.