
IDT70V37L
High-Speed 3.3V 32K x 18 Dual-Port Static RAM
Pin Names
Industrial and Commercial Temperature Ranges
Left Port
CE 0L , CE 1L
R/ W L
OE L
A 0L - A 14L
I/O 0L - I/O 17L
SEM L
UB L
LB L
INT L
BUSY L
Right Port
CE 0R , CE 1R
R/ W R
OE R
A 0R - A 14R
I/O 0R - I/O 17R
SEM R
UB R
LB R
INT R
BUSY R
M/ S
V DD
V SS
Names
Chip Enables
Read/Write Enable
Output Enable
Address
Data Input/Output
Semaphore Enable
Upper Byte Select
Lower Byte Select
Interrupt Flag
Busy Flag
Master or Slave Select
Power (3.3V)
Ground (0V)
Absolute Maximum Ratings (1)
4851 tbl 01
Recommended DC Operating
Conditions
Symbol Parameter Min. Typ. Max.
Unit
Symbol
Rating
Commercial
Unit
V DD
Supply Voltage
3.0
3.3
3.6
V
& Industrial
V SS
Ground
0
0
0
V
V TERM
(2)
Terminal Voltage
with Respect to GND
-0.5 to +4.6
V
V IH
V IL
Input High Voltage
Input Low Voltage
2.0
-0.3 (1)
____
____
V DD +0.3
0.8
(2)
V
V
T BIAS
Temperature
Under Bias
-55 to +125
o
C
NOTES:
4851 tbl 04
1. V IL > -1.5V for pulse width less than 10ns.
T STG
Storage
-65 to +150
o
C
2. V TERM must not exceed V DD + 0.3V.
Temperature
I OUT
N OTES:
DC Output Current
50
mA
4851 tbl 02
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
Capacitance (1) (T A = +25°C, f = 1.0MHz)
indicated in the operational sections of this specification is not implied. Exposure
Symbol
Parameter
Conditions
Max.
Unit
to absolute maximum rating conditions for extended periods may affect
reliability.
C IN
Input Capacitance
V IN = 0V
9
pF
2. V TERM must not exceed V DD + 0.3V for more than 25% of the cycle time or 10ns
maximum, and is limited to < 20mA for the period of V TERM > V DD + 0.3V.
C OUT (2)
Output Capacitance
V OUT = 0V
10
pF
NOTES:
Maximum Operating Temperature
and Supply Voltage (1)
4851 tbl 05
1. This parameter is determined by device characterization but is not produc-
tion tested.
2. C OUT also references C I/O .
Grade
Commercial
Industrial
NOTE:
Ambient
Temperature (1)
0 O C to +70 O C
-40 O C to +85 O C
GND
0V
0V
V DD
3.3V + 0.3V
3.3V + 0.3V
4851 tbl 03
1. This is the parameter T A . This is the "instant on" case temperature.
3
6.42