LY62W10248
Rev. 1.7
1024K X 8 BIT LOW POWER CMOS SRAM
REVISION HISTORY
Revision
Rev. 1.0
Rev. 1.1
Rev. 1.2
Rev. 1.3
Description
Initial Issue
Added I
SB
Spec.
Revised I
CC1
/I
SB1
/V
DR
/I
DR
Spec.
Revised V
TERM
to V
T1
and V
T2
Revised Test Condition of I
SB1
/I
DR
Revised
FEATURES
&
ORDERING INFORMATION
Lead free and green package available
to
Green package
available
Added packing type in
ORDERING INFORMATION
Deleted T
SOLDER
in
ABSOLUTE MAXIMUN RATINGS
Revised
PACKAGE OUTLINE DIMENSION
in page 11
Revised V
IH
to 0.7*Vcc
Revised
ORDERING INFORMATION
in page 11
Deleted E grade
Added SL grade
Revised V
IH
in page 3
Revised
TEST CONDITION
of V
IH
in page 4
Revised
PACKAGE
Issue Date
Jan.10.2008
Feb.1.2008
Mar.2.2009
May.7.2010
Rev. 1.4
Rev. 1.5
Aug.25.2010
Apr.25.2011
Rev. 1.6
Rev. 1.7
OUTLINE DIMENSION
in page 10
May.13.2011
Jul.27.2011
Lyontek Inc.
reserves the rights to change the specifications and products without notice.
5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan.
TEL: 886-3-6668838
FAX: 886-3-6668836
0
LY62W10248
Rev. 1.7
1024K X 8 BIT LOW POWER CMOS SRAM
GENERAL DESCRIPTION
The LY62W10248 is a 8,388,608-bit low power
CMOS static random access memory organized as
1,048,576 words by 8 bits. It is fabricated using very
high performance, high reliability CMOS technology.
Its standby current is stable within the range of
operating temperature.
The LY62W10248 is well designed for very low
power system applications, and particularly well
suited for battery back-up nonvolatile memory
application.
The LY62W10248 operates from a single power
supply of 2.7V ~ 5.5V and all inputs and outputs are
fully TTL compatible
FEATURES
Fast access time : 55/70ns
Low power consumption:
Operating current : 30/20mA (TYP.)
Standby current : 6A (TYP.) LL-version
3A (TYP.) SL-version
Single 2.7V ~ 5.5V power supply
All inputs and outputs TTL compatible
Fully static operation
Tri-state output
Data retention voltage : 1.5V (MIN.)
Green package available
Package : 44-pin 400 mil TSOP-II
48-ball 6mm x 8mm TFBGA
PRODUCT FAMILY
Product
Family
LY62W10248
LY62W10248(I)
Operating
Temperature
0 ~ 70℃
-40 ~ 85℃
Vcc Range
2.7 ~ 5.5V
2.7 ~ 5.5V
Speed
55/70ns
55/70ns
Power Dissipation
Standby(I
SB1,
TYP.) Operating(Icc,TYP.)
6µA(LL)/3µA(SL)
30/20mA
6µA(LL)/3µA(SL)
30/20mA
FUNCTIONAL BLOCK DIAGRAM
PIN DESCRIPTION
SYMBOL
DESCRIPTION
Address Inputs
Data Inputs/Outputs
Chip Enable Inputs
Write Enable Input
Output Enable Input
Power Supply
Ground
No Connection
Vcc
Vss
A0 - A19
DQ0 – DQ7
DECODER
1024Kx8
MEMORY ARRAY
CE#, CE2
WE#
OE#
V
CC
V
SS
NC
A0-A19
DQ0-DQ7
I/O DATA
CIRCUIT
COLUMN I/O
CE#
CE2
WE#
OE#
CONTROL
CIRCUIT
Lyontek Inc.
reserves the rights to change the specifications and products without notice.
5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan.
TEL: 886-3-6668838
FAX: 886-3-6668836
1
LY62W10248
Rev. 1.7
1024K X 8 BIT LOW POWER CMOS SRAM
PIN CONFIGURATION
A4
A3
A2
A1
A0
CE#
NC
NC
DQ0
DQ1
Vcc
Vss
DQ2
DQ3
NC
NC
WE#
A19
A18
A17
A16
A15
1
2
3
4
5
6
7
44
43
42
41
40
39
38
A5
A6
A7
OE#
CE2
A8
NC
NC
DQ7
DQ6
Vss
Vcc
DQ5
DQ4
NC
NC
A9
A10
A11
A12
A13
A14
LY62W10248
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
A
B
C
D
E
F
G
H
NC
NC
DQ0
OE#
NC
NC
A0
A3
A5
A1
A4
A6
A7
A2
CE#
NC
CE2
NC
DQ4
Vss DQ1 A17
Vcc DQ2
DQ3
NC
A18
NC
NC
A8
NC
A14
A12
A9
DQ5 Vcc
A16 DQ6 Vss
A15
NC
DQ7
NC
A19
A13 WE#
A10
A11
1
TSOP-II
2
3
4
TFBGA
5
6
Lyontek Inc.
reserves the rights to change the specifications and products without notice.
5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan.
TEL: 886-3-6668838
FAX: 886-3-6668836
2
LY62W10248
Rev. 1.7
1024K X 8 BIT LOW POWER CMOS SRAM
ABSOLUTE MAXIMUM RATINGS
PARAMETER
Voltage on V
CC
relative to V
SS
Voltage on any other pin relative to V
SS
Operating Temperature
Storage Temperature
Power Dissipation
DC Output Current
SYMBOL
V
T1
V
T2
T
A
T
STG
P
D
I
OUT
RATING
-0.5 to 6.5
-0.5 to V
CC
+0.5
0 to 70(C grade)
-40 to 85(I grade)
-65 to 150
1
50
UNIT
V
V
℃
℃
W
mA
*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 or any other conditions above those indicated in the operational sections of this
specification is not implied. Exposure to the absolute maximum rating conditions for extended period may affect device reliability.
TRUTH TABLE
MODE
Standby
Output Disable
Read
Write
Note:
CE#
H
X
L
L
L
CE2
X
L
H
H
H
OE#
X
X
H
L
X
WE#
X
X
H
H
L
I/O OPERATION
High-Z
High-Z
High-Z
D
OUT
D
IN
SUPPLY CURRENT
I
SB
,I
SB1
I
SB
,I
SB1
I
CC
,I
CC1
I
CC
,I
CC1
I
CC
,I
CC1
H = V
IH
, L = V
IL
, X = Don't care.
Lyontek Inc.
reserves the rights to change the specifications and products without notice.
5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan.
TEL: 886-3-6668838
FAX: 886-3-6668836
3
LY62W10248
Rev. 1.7
1024K X 8 BIT LOW POWER CMOS SRAM
DC ELECTRICAL CHARACTERISTICS
PARAMETER
Supply Voltage
Input High Voltage
Input Low Voltage
Input Leakage Current
Output Leakage
Current
Output High Voltage
Output Low Voltage
SYMBOL
V
CC
V
IH
*1
TEST CONDITION
V
CC
= 2.7 ~ 3.6V
V
CC
= 4.5 ~ 5.5V
V
CC
≧
V
IN
≧
V
SS
V
CC
≧
V
OUT
≧
V
SS
Output Disabled
I
OH
= -1mA
I
OL
= 2mA
Cycle time = Min.
- 55
CE# = V
IL
and CE2 = V
IH
I
I/O
= 0mA
- 70
Other pins at V
IL
or V
IH
Cycle time = 1µ s
CE#
≦
0.2V and CE2
≧
V
CC
-0.2V
I
I/O
= 0mA
Other pins at 0.2V or V
CC
-0.2V
CE# = V
IH
or CE2 = V
IL
Other pins at V
IL
or V
IH
LL
LLI
CE#
≧V
CC
-0.2V
*5
25
℃
SL
or CE2
≦
0.2V
*5
SLI
Other pins at 0.2V
40
℃
or V
CC
-0.2V
SL
SLI
V
IL
I
LI
*2
MIN.
2.7
2.2
2.4
- 0.2
-1
-1
2.4
-
-
-
TYP.
3.0
-
-
-
-
-
2.7
-
30
20
*4
MAX.
5.5
V
CC
+0.5
V
CC
+0.5
0.6
1
1
-
0.4
60
50
UNIT
V
V
V
V
µA
µA
V
V
mA
mA
I
LO
V
OH
V
OL
I
CC
Average Operating
Power supply Current
I
CC1
-
4
12
mA
I
SB
Standby Power
Supply Current
-
-
-
-
-
-
-
0.15
6
6
3
3
3
3
2
30
50
10
10
20
25
mA
µA
µA
µA
µA
µA
µA
I
SB1
Notes:
1. V
IH
(max) = V
CC
+ 3.0V for pulse width less than 10ns.
2. V
IL
(min) = V
SS
- 3.0V for pulse width less than 10ns.
3. Over/Undershoot specifications are characterized, not 100% tested.
4. Typical values are included for reference only and are not guaranteed or tested.
Typical values are measured at V
CC
= V
CC
(TYP.) and T
A
= 25℃
CAPACITANCE
(T
A
= 25℃, f = 1.0MHz)
PARAMETER
Input Capacitance
Input/Output Capacitance
SYMBOL
C
IN
C
I/O
MIN.
-
-
MAX
6
8
UNIT
pF
pF
Note : These parameters are guaranteed by device characterization, but not production tested.
AC TEST CONDITIONS
Input Pulse Levels
Input Rise and Fall Times
Input and Output Timing Reference Levels
Output Load
0.2V to V
CC
- 0.2V
3ns
1.5V
C
L
= 30pF + 1TTL, I
OH
/I
OL
= -1mA/2mA
Lyontek Inc.
reserves the rights to change the specifications and products without notice.
5F, No. 2, Industry E. Rd. IX, Science-Based Industrial Park, Hsinchu 300, Taiwan.
TEL: 886-3-6668838
FAX: 886-3-6668836
4
京公网安备 11010802033920号
EEWORLD
