Datasheet

CY7C1312BV18
CY7C1314BV18
Document #: 38-05619 Rev. *G Page 19 of 27
I
SB1
Automatic Power Down
Current
Max V
DD
,
Both Ports Deselected,
V
IN
≥ V
IH
or V
IN
≤ V
IL
f = f
MAX
= 1/t
CYC
,
Inputs Static
250 MHz (x18) 400 mA
(x36) 450
200 MHz (x18) 380
(x36) 400
167 MHz (x18) 360
(x36) 370
AC Electrical Characteristics
Over the Operating Range
[11]
Parameter Description Test Conditions Min Typ Max Unit
V
IH
Input HIGH Voltage V
REF
+ 0.2 – – V
V
IL
Input LOW Voltage – – V
REF
– 0.2 V
Electrical Characteristics (continued)
DC Electrical Characteristics
Over the Operating Range
[12]
Parameter Description Test Conditions Min Typ Max Unit
Notes
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. Output are impedance controlled. I
OH
= −(V
DDQ
/2)/(RQ/5) for values of 175 ohms <= RQ <= 350 ohms.
17. Output are impedance controlled. I
OL
= (V
DDQ
/2)/(RQ/5) for values of 175 ohms <= RQ <= 350 ohms.
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.
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