IDT70V9389/289L
High-Speed 3.3V 64K x18/x16 Dual-Port Synchronous Pipelined Static RAM
Industrial & Commercial Temperature Ranges
Truth Table II—Address Counter Control(1,2)
Previous Internal
MODE
External
Internal Address
Address Address
Used
0
CLK
↑
I/O(3)
ADS
X
CNTEN CNTRST
X
An
An
X
X
X
X
L(4)
H
DI/O(0)
Counter Reset to Address 0
An
L(4)
H
X
DI/O(n)
External Address Loaded into Counter
↑
↑
Ap
Ap
Ap
H
H
DI/O(p)
External Address Blocked—Counter disabled (Ap reused)
Ap + 1
H
L(5)
H
DI/O(p+1) Counter Enabled—Internal Address generation
↑
4856 tbl 03
NOTES:
1. "H" = VIH, "L" = VIL, "X" = Don't Care.
2. CE0, LB, UB, and OE = VIL; CE1 and R/W = VIH.
3. Outputs configured in Flow-Through Output mode; if outputs are in Pipelined mode the data out will be delayed by one cycle.
4. ADS and CNTRST are independent of all other signals including CE0, CE1, UB and LB.
5. The address counter advances if CNTEN = VIL on the rising edge of CLK, regardless of all other signals including CE0, CE1, UB and LB.
RecommendedOperating
RecommendedDCOperating
Conditions
TemperatureandSupplyVoltage(1)
Symbol
Parameter
Supply Voltage
Ground
Min.
Typ.
Max.
Unit
V
Ambient
Grade
Commercial
Temperature(2)
0OC to +70OC
-40OC to +85OC
GND
0V
VDD
V
V
DD
SS
3.0
3.3
3.6
3.3V
3.3V
+
0.3V
0
0
0
V
Industrial
0V
+
0.3V
____
V
IH
IL
Input High Voltage
Input Low Voltage
2.0
V
DD+0.3V(2)
0.8
V
4856 tbl 04
____
NOTE:
V
-0.3(1)
V
1. This is the parameter TA. This is the "instant on" case temperature.
4856 tbl 05
NOTES:
1. VIL > -1.5V for pulse width less than 10 ns.
2. VTERM must not exceed VDD +0.3V.
AbsoluteMaximumRatings(1)
Capacitance(1)
(TA = +25°C, f = 1.0MHZ)
Symbol
Rating
Commercial
& Industrial
Unit
Symbol
Parameter
Input Capacitance
Output Capacitance
Conditions(2)
IN = 3dV
OUT = 3dV
Max. Unit
(2)
V
TERM
Terminal Voltage
with Respect to
GND
-0.5 to +4.6
V
CIN
V
9
pF
(3)
OUT
(3)
Temperature
Under Bias
-55 to +125
-65 to +150
oC
oC
oC
TBIAS
C
V
10
pF
4856 tbl 07
NOTES:
TSTG
Storage
Temperature
1. These parameters are determined by device characterization, but are not
production tested.
2. 3dV references the interpolated capacitance when the input and output switch
from 0V to 3V or from 3V to 0V.
TJN
Junction Temperature
DC Output Current
+150
50
IOUT
mA
3. COUT also references CI/O.
4856 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. VTERM must not exceed VDD +0.3V for more than 25% of the cycle time or 10ns
maximum, and is limited to < 20mA for the period of VTERM > VDD + 0.3V.
3. Ambient Temperature Under DC Bias. No AC Conditions. Chip Deselected.
6.42
7