LY62L25616
Rev. 2.9
256K X 16 BIT LOW POWER CMOS SRAM
REVISION HISTORY
Revision
Rev. 1.0
Rev. 2.0
Rev. 2.1
Rev. 2.2
Description
Initial Issue
Revised I
SB(max) :
0.5mA => 1.25mA
Revised Package Outline Dimension(TSOP-II)
Deleted L Spec.
Added SL Spec.
Revised Test Condition of I
CC
/I
SB1
/I
DR
Revised V
TERM
to V
T1
and V
T2
Revised I
DR
Added I
SB1
/I
DR
values when T
A
= 25
℃
and T
A
= 40
℃
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 10
Revised
ORDERING INFORMATION
in page 11
Revised Notes of
READ CYCLE
of
TIMING WAVEFORMS
in page 5
Corrected
ORDERING INFORMATION
Typo.
Deleted
WRITE CYCLE
Notes :
1.WE#,CE#, LB#, UB# must be high during all address transitions.
in page 7
Issue Date
Jul.25.2004
May.11.2006
Apr.12.2007
Nov.8.2007
Rev. 2.3
Rev. 2.4
Mar.21.2008
Mar.30.2009
Rev. 2.5
Rev. 2.6
Rev. 2.7
Rev. 2.8
Rev. 2.9
May.6.2010
Aug.30.2010
Jan.7.2016
May.20.2016
Jun.29.2016
Lyontek Inc.
reserves the rights to change the specifications and products without notice.
2F, No.17, Industry E. Rd. II, Science-Based Industrial Park, Hsinchu 300, Taiwan.
TEL: 886-3-6668838
FAX: 886-3-6668836
0
LY62L25616
Rev. 2.9
256K X 16 BIT LOW POWER CMOS SRAM
GENERAL DESCRIPTION
The LY62L25616 is a 4,194,304-bit low power CMOS
static random access memory organized as 262,144
words by 16 bits. It is fabricated using very high
performance, high reliability CMOS technology. Its
standby current is stable within the range of operating
temperature.
The LY62L25616 is well designed for low power
application, and particularly well suited for battery
back-up nonvolatile memory application.
The LY62L25616 operates from a single power
supply of 2.7V ~ 3.6V and all inputs and outputs are
fully TTL compatible
FEATURES
Fast access time : 45/55/70ns
Low power consumption:
Operating current : 40/30/20mA (TYP.)
Standby current : 2A (TYP.) LL-version
1A (TYP.) SL-version
Single 2.7V ~ 3.6V power supply
All inputs and outputs TTL compatible
Fully static operation
Tri-state output
Data byte control : LB# (DQ0 ~ DQ7)
UB# (DQ8 ~ DQ15)
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
LY62L25616
LY62L25616(E)
LY62L25616(I)
Operating
Temperature
0 ~ 70℃
-20 ~ 80℃
-40 ~ 85℃
Vcc Range
2.7 ~ 3.6V
2.7 ~ 3.6V
2.7 ~ 3.6V
Speed
45/55/70ns
45/55/70ns
45/55/70ns
Power Dissipation
Standby(I
SB1,
TYP.) Operating(Icc,TYP.)
2µA(LL)/1µA(SL)
40/30/20mA
2µA(LL)/1µA(SL)
40/30/20mA
2µA(LL)/1µA(SL)
40/30/20mA
FUNCTIONAL BLOCK DIAGRAM
PIN DESCRIPTION
SYMBOL
DESCRIPTION
Address Inputs
Chip Enable Input
Write Enable Input
Output Enable Input
Lower Byte Control
Upper Byte Control
Power Supply
Ground
Vcc
Vss
A0 - A17
CE#
WE#
OE#
LB#
UB#
V
CC
DQ0 – DQ15 Data Inputs/Outputs
DECODER
256Kx16
MEMORY ARRAY
A0-A17
DQ0-DQ7
Lower Byte
DQ8-DQ15
Upper Byte
V
SS
I/O DATA
CIRCUIT
COLUMN I/O
CE#
WE#
OE#
LB#
UB#
CONTROL
CIRCUIT
Lyontek Inc.
reserves the rights to change the specifications and products without notice.
2F, No.17, Industry E. Rd. II, Science-Based Industrial Park, Hsinchu 300, Taiwan.
TEL: 886-3-6668838
FAX: 886-3-6668836
1
LY62L25616
Rev. 2.9
256K X 16 BIT LOW POWER CMOS SRAM
PIN CONFIGURATION
A4
A3
A2
A1
A0
CE#
DQ0
DQ1
DQ2
DQ3
Vcc
Vss
DQ4
DQ5
DQ6
DQ7
WE#
A17
A16
A15
A14
A13
A5
A6
A7
OE#
UB#
LB#
DQ15
DQ14
DQ13
DQ12
Vss
Vcc
DQ11
DQ10
DQ9
DQ8
NC
A8
A9
A10
A11
A12
1
2
3
4
5
6
7
8
44
43
42
41
40
39
38
37
LY62L25616
XXXXXXXX
XXXXXXXX
9
10
11
12
13
14
15
16
17
18
19
20
21
22
36
35
34
33
32
31
30
29
28
27
26
25
24
23
TSOP II
A
B
C
D
E
F
G
H
LB# OE#
DQ8 UB#
A0
A3
A1
A4
A6
A7
A2
NC
CE# DQ0
LY62L25616
XXXXXXXX
XXXXXXXX
DQ9 DQ10 A5
Vss DQ11 A17
Vcc DQ12 NC
DQ14 DQ13 A14
DQ15 NC
NC
A8
A12
A9
DQ1 DQ2
DQ3 Vcc
A16 DQ4 Vss
A15 DQ5 DQ6
A13 WE# DQ7
A10
A11
NC
1
2
3
4
5
6
TFBGA(See through with Top View)
TFBGA(Top View)
Lyontek Inc.
reserves the rights to change the specifications and products without notice.
2F, No.17, Industry E. Rd. II, Science-Based Industrial Park, Hsinchu 300, Taiwan.
TEL: 886-3-6668838
FAX: 886-3-6668836
2
LY62L25616
Rev. 2.9
256K X 16 BIT LOW POWER CMOS SRAM
ABSOLUTE MAXIMUN 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 4.6
-0.5 to V
CC
+0.5
0 to 70(C grade)
-20 to 80(E 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
CE#
H
X
L
L
L
L
L
L
L
L
OE#
X
X
H
H
L
L
L
X
X
X
WE# LB#
X
X
H
H
H
H
H
L
L
L
X
H
L
X
L
H
L
L
H
L
UB#
X
H
X
L
H
L
L
H
L
L
I/O OPERATION
DQ0-DQ7
DQ8-DQ15
High – Z
High – Z
High – Z
High – Z
High – Z
High – Z
High – Z
High – Z
D
OUT
High – Z
High – Z
D
OUT
D
OUT
D
OUT
D
IN
High – Z
High – Z
D
IN
D
IN
D
IN
SUPPLY CURRENT
I
SB
,I
SB1
I
CC
,I
CC1
I
CC
,I
CC1
Write
Note:
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.
2F, No.17, Industry E. Rd. II, Science-Based Industrial Park, Hsinchu 300, Taiwan.
TEL: 886-3-6668838
FAX: 886-3-6668836
3
LY62L25616
Rev. 2.9
256K X 16 BIT LOW POWER CMOS SRAM
DC ELECTRICAL CHARACTERISTICS
SYMBOL
TEST CONDITION
PARAMETER
Supply Voltage
V
CC
*1
Input High Voltage
V
IH
*2
Input Low Voltage
V
IL
Input Leakage Current
I
LI
V
CC
≧
V
IN
≧
V
SS
Output Leakage
V
CC
≧
V
OUT
≧
V
SS
,
I
LO
Current
Output Disabled
Output High Voltage
V
OH
I
OH
= -1mA
Output Low Voltage
V
OL
I
OL
= 2mA
- 45
Cycle time = Min.
I
CC
CE# = V
IL
, I
I/O
= 0mA
- 55
Other pins at V
IL
or V
IH
Average Operating
- 70
Power supply Current
Cycle time = 1µ s
I
CC1
CE# = 0.2V , I
I/O
= 0mA
Other pins at 0.2V or V
CC
- 0.2V
I
SB
CE# = V
IH,
other pins at V
IL
or V
IH
LL
LLE/LLI
*5
Standby Power
CE#
≧V
CC
- 0.2V
SL
25
℃
*5
Supply Current
I
SB1
Others at 0.2V or
SLE
*5
40
℃
V
CC
- 0.2V
SLI
SL
SLE/SLI
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℃
5. This parameter is measured at V
CC
= 3.0V
MIN.
2.7
2.2
- 0.2
-1
-1
2.2
-
-
-
-
-
-
-
-
-
-
-
-
TYP.
3.0
-
-
-
-
2.7
-
40
30
20
4
0.3
2
2
1
1
1
1
*4
MAX.
3.6
V
CC
+0.3
0.6
1
1
-
0.4
50
40
30
5
1.25
15
20
3
3
10
12
UNIT
V
V
V
µA
µA
V
V
mA
mA
mA
mA
mA
µA
µA
µA
µA
µA
µA
Lyontek Inc.
reserves the rights to change the specifications and products without notice.
2F, No.17, Industry E. Rd. II, Science-Based Industrial Park, Hsinchu 300, Taiwan.
TEL: 886-3-6668838
FAX: 886-3-6668836
4
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