NOT RECOMMENDED FOR
NEW DESIGNS
6.42
IDT70P3519/99
High-Speed 1.8V 256/128K x 36 Dual-Port Synchronous Static RAM Industrial and Commercial Temperature Ranges
8
FEBRUARY 15, 2008
Recommended DC Operating
Conditions with V
DDQ at 3.3V
NOTES:
1. V
IL (min.) = -1.0V for pulse width less than tCYC/2, or 5ns, whichever is less.
2. V
IH (max.) = VDDQ + 1.0V for pulse width less than tCYC/2 or 5ns, whichever is less.
3. JTAG is driven by the left port V
DDQL.
Symbol Parameter Min. Typ. Max. Unit
V
DD
Core Supply Voltage 1.7 1.8 1.9 V
V
DDQ
I/O Supply Voltage 3.15 3.3 3.45 V
V
SS
Ground 0 0 0 V
V
IH
Input High Voltage 2.0
____
V
DDQ
+ 150mV
(2)
V
V
IH
Input High Voltage
_
JTAG
(3)
2.0
____
V
DDQL
+ 150mV
(2)
V
V
IH
Input High Voltage -
ZZ, PIPE/FT
V
DDQ
- 0.2V
____
V
DDQ
+ 150mV
(2)
V
V
IL
Input Low Voltage -0.3
(1)
____
0.8 V
V
IL
Input Low Voltage -
ZZ, PIPE/FT
-0.3
(1)
____
0.2 V
7144 tbl 05b
Absolute Maximum Ratings
(1)
Symbol Rating Commercial
& Industrial
Unit
V
TERM
(V
DD
)
V
DD
Terminal Voltage
with Respect to GND
- 0.5 to + 2.5 V
V
TERM
(2)
(V
DDQ
)
V
DDQ
Terminal Voltag e
with Respect to GND
- 0.3 to + 4.2 V
V
TERM
(2)
(INPUTS and I/O's)
Input and I/O Terminal
Voltage with Respect to GND
- 0.3 to min. {V
DDQ
+ 0.3, 4.2}
(4)
V
T
BIAS
(3)
Temperature Under Bias -55 to +125
o
C
T
STG
Storage Temperature -65 to +150
o
C
T
JN
Junction Temperature +150
o
C
I
OUT
(For V
DDQ
=
3.3V) DC Output Current 50 mA
I
OUT
(For V
DDQ
=
2.5V) DC Output Current 40 mA
I
OUT
(For V
DDQ
=
1.8V) DC Output Current 35 mA
7144 tbl 06
NOTES:
1. Stresses greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause
permanent damage to the device. This is a stress rating only and functional operation
of the device at these or any other conditions above those indicated in the operational
sections of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
2. This is a steady-state DC parameter that applies after the power supply has reached its
nominal operating value. Power sequencing is not necessary; however, the voltage
on any Input or I/O pin cannot exceed V
DDQ during power supply ramp up.
3. Ambient Temperature under DC Bias. No AC Conditions. Chip Deselected.
4. V
TERM (Inputs and I/O's) -0.3 to min {VDDQ + 0.3, 4.2} means that the range is -0.3V to
either V
DDQ +0.3V or 4.2V whichever is less.
