IS66WV51216DALL Datasheet, PDF (3/17 Pages) Integrated Silicon Solution, Inc – 8Mb LOW VOLTAGE, ULTRA LOW POWER PSEUDO CMOS STATIC RAM

IS66WV51216DALL
IS66/67WV51216DBLL
TRUTH TABLE

Mode
WE CS1 CS2 OE LB UB
I/O PIN
I/O0-I/O7 I/O8-I/O15
Not Selected


XHXXXX
X
X
L
X
X
X
XXXXHH
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
Output Disabled

H
L
H
H
L
X
H
L
H
H
X
L
High-Z
High-Z
High-Z
High-Z
Read


H
L
H
L
L
H
Dout
High-Z
H
L
H
L
H
L
High-Z
Dout
H
L
H
L
L
L Dout Dout
Write


L
L
H
X
L
H
Din
High-Z
L
L
H
X
H
L
High-Z
Din
L
L
H
X
L
L Din Din
Vdd Current
Isb1, Isb2
Isb1, Isb2
Isb1, Isb2
Icc
Icc
Icc
Icc
Note:
CS2 input signal pin is only available for 48-ball mini BGA package parts. CS2 input is internally enabled for 44-pin TSOP-II pack-
age parts.
OPERATING RANGE (Vdd)

Range
Ambient Temperature
Industrial
–40°C to +85°C
Automotive, A1 –40°C to +85°C
Automotive, A2 –40°C to +105°C
IS66WV51216DALL
(70ns)
1.7V - 1.95V
–
–
IS66WV51216DBLL
(55ns, 70ns)
2.5V - 3.6V
–
–
IS67WV51216DBLL
(55ns, 70ns)
–
2.5V - 3.6V
2.5V - 3.6V
Power-Up Initialization
IS66WV512616DALL/DBLL and IS67WV512616DBLL include an on-chip voltage sensor used to launch the power-up initialization
process. When VDD reaches a stable level at or above the VDD (min) , the device will require 50μs to complete its self-initialization
process.During the initialization period, CS should remain HIGH.When initialization is complete, the device is ready for normal operation.
VDD (min)
0V
VDD
≥ 50us
Device Initialization
Device for Normal Operation
Integrated Silicon Solution, Inc. — www.issi.com
3
Rev.  A
06/28/2011