Lyontek LY62W25616 256k x 16 bit low power cmos sram Datasheet


LY62W25616
256K X 16 BIT LOW POWER CMOS SRAM
Rev. 1.6
REVISION HISTORY
Revision
Rev. 1.0
Rev. 1.1
Rev. 1.2
Rev. 1.3
Rev. 1.4
Rev. 1.5
Rev. 1.6
Description
Initial Issue
Revised FEATURES & ORDERING INFORMATION
Lead free and green package available to Green package available
Added packing type in ORDERING INFORMATION
Deleted TSOLDER in ABSOLUTE MAXIMUN RATINGS
Revised PACKAGE OUTLINE DIMENSION in page 10
Revised VIH to 0.7*VCC
Revised VDR to 1.5V
Revised ORDERING INFORMATION in page 11
Added SL Grade
Deleted E Grade
Revised ISB1/IDR
Revised “Standby Power Supply Current” in page 3
Revised “Data Retention Current” in page 8
Deleted WRITE CYCLE Notes :
1. WE#,CE#, LB#, UB# must be high during all address transitions. in page 8
Revised GENERAL DESCRIPTION in page 1
Revised PIN DESCRIPTION in page 1
Revised 48-ball 6mm × 8mm TFBGA Package Outline Dimension
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
Issue Date
Mar.21.2008
May.07.2010
Aug.25.2010
Aug.09.2011
April.30.2012
Jun.29.2016
Apr.26.2017

LY62W25616
256K X 16 BIT LOW POWER CMOS SRAM
Rev. 1.6
FEATURES
GENERAL DESCRIPTION
 Fast access time : 55/70ns
 Low power consumption:
Operating current : 30/20mA (TYP.)
Standby current : 4A (TYP.) LL-version
3A (TYP.) SL-version
 Single 2.7V ~ 5.5V power supply
 All 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 400mil TSOP II
48-ball 6mm x 8mm TFBGA
The LY62W25616 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 LY62W25616 is well designed for low power
application, and particularly well suited for battery
back-up nonvolatile memory application.
The LY62W25616 operates from a single power
supply of 2.7V ~ 5.5V and all outputs are fully TTL
compatible.
PRODUCT FAMILY
Product
Family
LY62W25616
LY62W25616(I)
Operating
Temperature
0 ~ 70℃
-40 ~ 85℃
VCC Range
Speed
2.7 ~ 5.5V
2.7 ~ 5.5V
55/70ns
55/70ns
FUNCTIONAL BLOCK DIAGRAM
PIN DESCRIPTION
Vcc
Vss
A0-A17
DQ0-DQ7
Lower Byte
DQ8-DQ15
Upper Byte
CE#
WE#
OE#
LB#
UB#
DECODER
I/O DATA
CIRCUIT
Power Dissipation
Standby(ISB1,TYP.) Operating(ICC,TYP.)
4µA(LL)/3µA(SL)
30/20mA
4µA(LL)/3µA(SL)
30/20mA
256Kx16
MEMORY ARRAY
COLUMN I/O
SYMBOL
DESCRIPTION
A0 - A17
Address Inputs
DQ0 - DQ15
Data Inputs/Outputs
CE#
Chip Enable Input
WE#
Write Enable Input
OE#
Output Enable Input
LB#
Lower Byte Control
UB#
Upper Byte Control
VCC
Power Supply
VSS
Ground
NC
No Connection
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

LY62W25616
256K X 16 BIT LOW POWER CMOS SRAM
Rev. 1.6
PIN CONFIGURATION
1
44
A5
A3
2
43
A6
A2
3
42
A7
A1
4
41
OE#
A0
5
40
UB#
CE#
6
39
LB#
DQ0
7
38
DQ15
DQ1
8
37
DQ14
DQ2
9
36
DQ13
DQ3
10
35
DQ12
Vcc
11
34
Vss
Vss
12
33
Vcc
DQ4
13
32
DQ11
DQ5
14
31
DQ10
DQ6
15
30
DQ9
DQ7
16
29
DQ8
WE#
17
28
NC
A17
18
27
A8
A16
19
26
A9
A15
20
25
A10
A14
21
24
A11
A13
22
23
A12
LY62W25616
XXXXXXXX
XXXXXXXX
A4
TSOP II
A
LB# OE#
A0
A1
B
DQ8 UB#
A3
A4
CE# DQ0
C
DQ9 DQ10 A5
A6
DQ1 DQ2
D
Vss DQ11 A17
A7
DQ3 Vcc
E
Vcc DQ12 NC
A16 DQ4 Vss
F
DQ14 DQ13 A14
A15 DQ5 DQ6
G
DQ15 NC
A12
A13 WE# DQ7
A9
A10
NC
A8
A11
NC
LY62W25616
XXXXXXXX
XXXXXXXX
H
A2
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
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
LY62W25616
256K X 16 BIT LOW POWER CMOS SRAM
Rev. 1.6
ABSOLUTE MAXIMUN RATINGS*
PARAMETER
Voltage on VCC relative to VSS
Voltage on any other pin relative to VSS
SYMBOL
VT1
VT2
Operating Temperature
TA
Storage Temperature
Power Dissipation
DC Output Current
TSTG
PD
IOUT
RATING
-0.5 to 6.5
-0.5 to VCC+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
CE#
OE#
H
X
L
L
L
L
L
L
L
L
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
I/O OPERATION
DQ0 - DQ7 DQ8 - DQ15
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
DOUT
High-Z
High-Z
DOUT
DOUT
DOUT
DIN
High-Z
High-Z
DIN
DIN
DIN
UB#
X
H
X
L
H
L
L
H
L
L
Note: H = VIH, L = VIL, 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
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SUPPLY CURRENT
ISB1
ICC,ICC1
ICC,ICC1
ICC,ICC1

LY62W25616
256K X 16 BIT LOW POWER CMOS SRAM
Rev. 1.6
DC ELECTRICAL CHARACTERISTICS
SYMBOL
TEST CONDITION
PARAMETER
Supply Voltage
VCC
Input High Voltage
VIH*1
Input Low Voltage
VIL*2
Input Leakage Current
ILI
VCC ≧ VIN ≧ VSS
Output Leakage
VCC ≧ VOUT ≧ VSS,
ILO
Current
Output Disabled
Output High Voltage
VOH
IOH = -1mA
Output Low Voltage
VOL
IOL = 2mA
Cycle time = MIN.
- 55
ICC
CE# = VIL , II/O = 0mA
- 70
Other pins at VIL or VIH
Average Operating
Power supply Current
Cycle time = 1µ s
ICC1
CE# = 0.2V , II/O = 0mA
Other pins at 0.2V or VCC - 0.2V
LL/LLI
CE# ≧ VCC - 0.2V
Standby Power
SL*5 25℃
ISB1
Others at 0.2V or
Supply Current
SLI*5 40℃
VCC - 0.2V
SL/SLI
MIN.
2.7
0.7*VCC
- 0.2
-1
TYP. *4
3.0
-
MAX.
5.5
VCC+0.3
0.6
1
UNIT
V
V
V
µA
-1
-
1
µA
2.4
-
2.7
-
0.4
V
V
-
30
60
mA
-
20
50
mA
-
4
10
mA
-
4
3
3
3
50
10
10
25
µA
µA
µA
µA
Notes:
1. VIH(max) = VCC + 3.0V for pulse width less than 10ns.
2. VIL(min) = VSS - 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 VCC = VCC(TYP.) and TA = 25℃
5. This parameter is measured at VCC = 3.0V
CAPACITANCE (TA = 25℃, f = 1.0MHz)
PARAMETER
Input Capacitance
Input/Output Capacitance
SYMBOL
CIN
CI/O
MIN.
-
MAX.
6
8
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 VCC - 0.2V
3ns
1.5V
CL = 30pF + 1TTL, IOH/IOL = -1mA/2mA
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
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UNIT
pF
pF

LY62W25616
256K X 16 BIT LOW POWER CMOS SRAM
Rev. 1.6
AC ELECTRICAL CHARACTERISTICS
(1) READ CYCLE
PARAMETER
Read Cycle Time
Address Access Time
Chip Enable Access Time
Output Enable Access Time
Chip Enable to Output in Low-Z
Output Enable to Output in Low-Z
Chip Disable to Output in High-Z
Output Disable to Output in High-Z
Output Hold from Address Change
LB#, UB# Access Time
LB#, UB# to High-Z Output
LB#, UB# to Low-Z Output
SYM.
tRC
tAA
tACE
tOE
tCLZ*
tOLZ*
tCHZ*
tOHZ*
tOH
tBA
tBHZ*
tBLZ*
LY62W25616-55
MIN.
MAX.
55
55
55
30
10
5
20
20
10
55
25
10
-
LY62W25616-70
MIN.
MAX.
70
70
70
35
10
5
25
25
10
70
30
10
-
LY62W25616-55
MIN.
MAX.
55
50
50
0
45
0
25
0
5
20
45
-
LY62W25616-70
MIN.
MAX.
70
60
60
0
55
0
30
0
5
25
60
-
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
(2) WRITE CYCLE
PARAMETER
Write Cycle Time
Address Valid to End of Write
Chip Enable to End of Write
Address Set-up Time
Write Pulse Width
Write Recovery Time
Data to Write Time Overlap
Data Hold from End of Write Time
Output Active from End of Write
Write to Output in High-Z
LB#, UB# Valid to End of Write
SYM.
tWC
tAW
tCW
tAS
tWP
tWR
tDW
tDH
tOW *
tWHZ*
tBW
*These parameters are guaranteed by device characterization, but not production tested.
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
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UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns

LY62W25616
256K X 16 BIT LOW POWER CMOS SRAM
Rev. 1.6
TIMING WAVEFORMS
READ CYCLE 1 (Address Controlled) (1,2)
tRC
Address
tAA
Dout
tOH
Previous Data Valid
Data Valid
READ CYCLE 2 (CE# and OE# Controlled) (1,3,4,5)
tRC
Address
tAA
CE#
tACE
LB#,UB#
tBA
OE#
tOE
tOH
tOHZ
tBHZ
tCHZ
tOLZ
tBLZ
tCLZ
Dout
High-Z
Data Valid
High-Z
Notes :
1.WE# is high for read cycle.
2.Device is continuously selected OE# = low, CE# = low, LB# or UB# = low.
3.Address must be valid prior to or coincident with CE# = low, LB# or UB# = low transition; otherwise tAA is the limiting parameter.
4.tCLZ, tBLZ, tOLZ, tCHZ, tBHZ and tOHZ are specified with CL = 5pF. Transition is measured ±500mV from steady state.
5.At any given temperature and voltage condition, tCHZ is less than tCLZ , tBHZ is less than tBLZ, tOHZ is less than tOLZ.
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
6

LY62W25616
256K X 16 BIT LOW POWER CMOS SRAM
Rev. 1.6
WRITE CYCLE 1 (WE# Controlled) (1,2,4,5)
tWC
Address
tAW
CE#
tCW
tBW
LB#,UB#
tAS
tWP
tWR
WE#
tWHZ
Dout
tOW
High-Z
(4)
tDW
Din
(4)
tDH
Data Valid
WRITE CYCLE 2 (CE# Controlled) (1,4,5)
tWC
Address
tAW
CE#
tAS
tWR
tCW
tBW
LB#,UB#
tWP
WE#
tWHZ
Dout
High-Z
(4)
tDW
Din
tDH
Data Valid
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
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
LY62W25616
256K X 16 BIT LOW POWER CMOS SRAM
Rev. 1.6
WRITE CYCLE 3 (LB#,UB# Controlled) (1,4,5)
tWC
Address
tAW
tWR
CE#
tAS
tCW
tBW
LB#,UB#
tWP
WE#
tWHZ
Dout
High-Z
(4)
tDW
Din
tDH
Data Valid
Notes :
1.A write occurs during the overlap of a low CE#, low WE#, LB# or UB# = low.
2.During a WE# controlled write cycle with OE# low, tWP must be greater than tWHZ + tDW to allow the drivers to turn off and data to be placed
on the bus.
3.During this period, I/O pins are in the output state, and input signals must not be applied.
4.If the CE#, LB#, UB# low transition occurs simultaneously with or after WE# low transition, the outputs remain in a high impedance state.
5.tOW and tWHZ are specified with CL = 5pF. Transition is measured ±500mV from steady state.
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
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
LY62W25616
256K X 16 BIT LOW POWER CMOS SRAM
Rev. 1.6
DATA RETENTION CHARACTERISTICS
PARAMETER
VCC for Data Retention
SYMBOL
TEST CONDITION
VDR
CE# ≧ VCC - 0.2V
Data Retention Current
Chip Disable to Data
Retention Time
Recovery Time
tRC* = Read Cycle Time
LL/LLI
SL 25℃
SLI 40℃
SL/SLI
IDR
VCC = 1.5V
CE# ≧ VCC - 0.2V
Others at 0.2V or VCC-0.2V
tCDR
See Data Retention Waveforms (below)
tR
DATA RETENTION WAVEFORM
Low VCC Data Retention Waveform (1) (CE# controlled)
VDR ≧ 1.5V
Vcc
Vcc(min.)
Vcc(min.)
tCDR
CE#
VIH
tR
CE# ≧ Vcc-0.2V
VIH
Low VCC Data Retention Waveform (2) (LB#, UB# controlled)
VDR ≧ 1.5V
Vcc
Vcc(min.)
Vcc(min.)
tCDR
LB#,UB#
VIH
tR
LB#,UB# ≧ Vcc-0.2V
VIH
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
9
MIN.
1.5
-
TYP.
2
2
2
2
MAX.
5.5
30
8
8
23
UNIT
V
µA
µA
µA
µA
0
-
-
ns
tRC*
-
-
ns

LY62W25616
256K X 16 BIT LOW POWER CMOS SRAM
Rev. 1.6
PACKAGE OUTLINE DIMENSION
44-pin 400mil TSOP Ⅱ Package Outline Dimension
SYMBOLS
A
A1
A2
b
c
D
E
E1
e
L
ZD
y
Θ
DIMENSIONS IN MILLMETERS
MIN.
NOM.
MAX.
1.20
0.05
0.10
0.15
0.95
1.00
1.05
0.30
0.45
0.12
0.21
18.212
18.415
18.618
11.506
11.760
12.014
9.957
10.160
10.363
0.800
0.40
0.50
0.60
0.805
0.076
0o
3o
6o
DIMENSIONS IN MILS
MIN.
NOM.
MAX.
47.2
2.0
3.9
5.9
37.4
39.4
41.3
11.8
17.7
4.7
8.3
717
725
733
453
463
473
392
400
408
31.5
15.7
19.7
23.6
31.7
3
0o
3o
6o
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
10

LY62W25616
Rev. 1.6
256K X 16 BIT LOW POWER CMOS SRAM
48-ball 6mm × 8mm TFBGA Package Outline Dimension
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
11

LY62W25616
256K X 16 BIT LOW POWER CMOS SRAM
Rev. 1.6
ORDERING INFORMATION
Package Type
Access Time
Power Type
Temperature
Packing
Range(℃)
Type
(Speed)(ns)
44-pin (400mil)
55
TSOP II
Special
0℃~70℃
Ultra Low Power
-40℃~85℃
Ultra Low Power 0℃~70℃
-40℃~85℃
70
Special
0℃~70℃
Ultra Low Power
-40℃~85℃
Ultra Low Power 0℃~70℃
-40℃~85℃
Tray
LY62W25616ML-55SL
Tape Reel
LY62W25616ML-55SLT
Tray
LY62W25616ML-55SLI
Tape Reel
LY62W25616ML-55SLIT
Tray
LY62W25616ML-55LL
Tape Reel
LY62W25616ML-55LLT
Tray
LY62W25616ML-55LLI
Tape Reel
LY62W25616ML-55LLIT
Tray
LY62W25616ML-70SL
Tape Reel
LY62W25616ML-70SLT
Tray
LY62W25616ML-70SLI
Tape Reel
LY62W25616ML-70SLIT
Tray
LY62W25616ML-70LL
Tape Reel
LY62W25616ML-70LLT
Tray
LY62W25616ML-70LLI
Tape Reel
LY62W25616ML-70LLIT
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
12
Lyontek Item No.

LY62W25616
256K X 16 BIT LOW POWER CMOS SRAM
Rev. 1.6
ORDERING INFORMATION
Package Type
Access Time
Power Type
Temperature
Packing
Range(℃)
Type
(Speed)(ns)
48-ball
55
(6mm x 8mm)
Special
0℃~70℃
Ultra Low Power
TFBGA
-40℃~85℃
Ultra Low Power 0℃~70℃
-40℃~85℃
70
Special
0℃~70℃
Ultra Low Power
-40℃~85℃
Ultra Low Power 0℃~70℃
-40℃~85℃
Tray
LY62W25616GL-55SL
Tape Reel
LY62W25616GL-55SLT
Tray
LY62W25616GL-55SLI
Tape Reel
LY62W25616GL-55SLIT
Tray
LY62W25616GL-55LL
Tape Reel
LY62W25616GL-55LLT
Tray
LY62W25616GL-55LLI
Tape Reel
LY62W25616GL-55LLIT
Tray
LY62W25616GL-70SL
Tape Reel
LY62W25616GL-70SLT
Tray
LY62W25616GL-70SLI
Tape Reel
LY62W25616GL-70SLIT
Tray
LY62W25616GL-70LL
Tape Reel
LY62W25616GL-70LLT
Tray
LY62W25616GL-70LLI
Tape Reel
LY62W25616GL-70LLIT
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
13
Lyontek Item No.

LY62W25616
Rev. 1.6
256K X 16 BIT LOW POWER CMOS SRAM
THIS PAGE IS LEFT BLANK INTENTIONALLY.
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
14
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