
K7B321825M
1Mx36 & 2Mx18 Synchronous SRAM
- 8 -
Rev 2.0
Nov. 2003
K7B323625M
ABSOLUTE MAXIMUM RATINGS*
*Notes :
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 operating sections of this specification is not
implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
PARAMETER
SYMBOL
RATING
UNIT
Voltage on V
DD
Supply Relative to V
SS
V
DD
-0.3 to 4.6
V
Voltage on V
DDQ
Supply Relative to V
SS
V
DDQ
V
DD
V
Voltage on Input Pin Relative to V
SS
V
IN
-0.3 to V
DD
+0.3
V
Voltage on I/O Pin Relative to V
SS
V
IO
-0.3 to V
DDQ
+0.3
V
Power Dissipation
P
D
1.6
W
Storage Temperature
T
STG
-65 to 150
°
C
°
C
Operating Temperature
T
OPR
0 to 70
Storage Temperature Range Under Bias
T
BIAS
-10 to 85
°
C
CAPACITANCE*
(T
A
=25
°
C, f=1MHz)
*Note :
Sampled not 100% tested.
PARAMETER
SYMBOL
TEST CONDITION
MIN
MAX
UNIT
Input Capacitance
C
IN
V
IN
=0V
-
5
pF
Output Capacitance
C
OUT
V
OUT
=0V
-
7
pF
ASYNCHRONOUS TRUTH TABLE
Operation
ZZ
OE
I/O STATUS
Sleep Mode
H
X
High-Z
Read
L
L
DQ
L
H
High-Z
Write
L
X
Din, High-Z
Deselected
L
X
High-Z
Notes
1. X means "Don
′
t Care".
2. ZZ pin is pulled down internally
3. For write cycles that following read cycles, the output buffers must be
disabled with OE, otherwise data bus contention will occur.
4. Sleep Mode means power down state of which stand-by current does
not depend on cycle time.
5. Deselected means power down state of which stand-by current
depends on cycle time.
OPERATING CONDITIONS at 3.3V I/O
(0
°
C
≤
T
A
≤
70
°
C)
PARAMETER
SYMBOL
MIN
Typ.
MAX
UNIT
Supply Voltage
V
DD
3.135
3.3
3.465
V
V
DDQ
3.135
3.3
3.465
V
Ground
V
SS
0
0
0
V
OPERATING CONDITIONS at 2.5V I/O
(0
°
C
≤
T
A
≤
70
°
C)
PARAMETER
SYMBOL
MIN
Typ.
MAX
UNIT
Supply Voltage
V
DD
3.135
3.3
3.465
V
V
DDQ
2.375
2.5
2.9
V
Ground
V
SS
0
0
0
V