EliteMT
M11L416256SA
DRAM
256 K x 16 DRAM
EDO PAGE MODE
FEATURES
X16 organization
EDO (Extended Data-Output) access mode
2 CAS Byte/Word Read/Write operation
Single 3.3V ( 10%) power supply
LVTTL-compatible inputs and outputs
512-cycle refresh in 8ms
Refresh modes : RAS only, CAS BEFORE RAS (CBR)
and HIDDEN capabilities
Self-refresh capability
JEDEC standard pinout
Elite Memory Technology Inc
Publication Date: Aug. 2005
Revision : 1.4 1/16
Key AC Parameter
t
RAC
t
CAC
t
RC
t
PC
-35 35 10 65 14
ORDERING INFORMATION - PACKAGE
40-pin 400mil SOJ
44 / 40-pin 400mil TSOP (Type II)
PRODUCT NO.
PACKING
TYPE
COMMENTS
M11L416256SA-
35 TG
M11L416256SA-
35 JP
SOJ/TSOPII Pb-free
GENERAL DESCRIPTION
The M11L416256 series is a randomly accessed solid state memory, organized as 262,144 x 16 bits device. It offers
Extended Data-Output , 3.3V( 10%) single power supply. Access time (-35) , self-refresh and package type (SOJ, TSOP II)
are optional features of this family. All these family have
CAS
- before - RAS , RAS -only refresh and Hidden refresh
capabilities.
Two access modes are supported by this device: Byte access and Word access. Use only one of the two CAS and leave
the other staying high will result in a BYTE access. WORD access happens when two CAS ( CASL , CASH ) are used.
CASL
transiting low during READ or WRITE cycle will output or input data into the lower byte (IO0~IO7), and CASH
transiting low will output or input data into the upper byte (IO8~15).
PIN ASSIGNMENT
SOJ Top View
TSOP (TypeII) Top View
1
2
3
4
5
6
7
8
9
V
CC
I/O0
I/O1
I/O2
I/O3
V
CC
I/O4
I/O5
I/O6
40
39
38
37
36
35
34
33
32
V
S S
I/O15
I/O14
I/O13
I/O12
V
S S
I/O11
I/O10
I/O9
10
11
12
13
14
15
16
17
18
19
20
I/O7
N C
N C
W E
RA S
N C
A0
A1
A2
A3
V
CC
31
30
29
28
27
26
25
24
23
22
21
I/O8
N C
CASL
C A S H
OE
A8
A7
A6
A5
A4
V
S S
1
2
3
4
5
6
7
8
9
10
V
CC
I/O0
I/O1
I/O2
I/O3
V
CC
I/O4
I/O5
I/O6
I/O7
N C
N C
W E
RA S
N C
A0
A1
A2
A3
V
CC
40
39
38
37
36
35
34
33
32
31
V
S S
I/O15
I/O14
I/O13
I/O12
V
S S
I/O11
I/O10
I/O9
I/O8
N C
CASL
C A S H
OE
A8
A7
A6
A5
A4
V
S S
11
12
13
14
15
16
17
18
19
20
30
29
28
27
26
25
24
23
22
21
EliteMT
M11L416256SA
FUNCTIONAL BLOCK DIAGRAM
CONTROL
LOGIC
DATA-IN BUFFER
CLOCK
GENERATOR
DATA-OUT
BUFFER
COLUMN
ADDRESS
BUFFER
REFRESH
CONTROLER
REFRESH
COUNTER
ROW.
ADDRESS
BUFFERS(9)
9
A0
A1
A2
A3
A4
A5
A6
A7
COLUMN
DECODER
OE
16
R
O
W
DECO
DE
R
512 x 512 x 16
MEMORY
ARRAY
16
SENSE AMPLIFIERS
I/O GATING
8
512 x 16
V
CC
V
SS
IO0
:
IO15
RAS
CASH
512
512
9
9
9
9
9
CASL
V
BB
GENERATOR
WE
16
A8
PIN DESCRIPTIONS
PIN NO.
PIN NAME
TYPE
DESCRIPTION
16~19,22~26 A0~A8 Input
Address Input
Row Address : A0~A8
Column Address : A0~A8
14
RAS
Input
Row
Address
Strobe
28
CASH
Input
Column Address Strobe / Upper Byte Control
29
CASL
Input
Column Address Strobe / Lower Byte Control
13
WE
Input
Write
Enable
27
OE
Input
Output
Enable
2~5,7~10,31~34,36~39
I/O0 ~ I/O15
Input / Output Data Input / Output
1,6,20 V
CC
Supply
Power,
3.3V
21,35,40 V
SS
Ground
Ground
11,12,15,30 NC -
No
Connect
Elite Memory Technology Inc
Publication Date: Aug. 2005
Revision : 1.4 2/16
EliteMT
M11L416256SA
ABSOLUTE MAXIMUM RATINGS
Voltage on Any pin Relative to Vss ... ......-0.5V to +4.6V
Operating Temperature, T
A
(ambient) ....0
to +70
C
C
Storage Temperature (plastic) ..........-55
to +150
C
C
Power Dissipation .......................................0.8W
Short Circuit Output Current ........................50mA
Permanent device damage may occur if "Absolute
Maximum Ratings" are exceeded. This is a stress rating
only, and functional operation of the device above those
conditions indicated in the operational sections of this
specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may
affect reliability.
DC ELECTRICAL CHARACTERISTICS AND RECOMMENDED
OPERATING CONDITIONS
(0
T
A
70
; V
CC
= 3.3V
C
C
10% unless otherwise noted)
PARAMETER CONDITIONS
SYMBOL
MIN
MAX
UNITS NOTES
Supply Voltage
V
CC
3.0 3.6 V 1
Supply Voltage
V
SS
0 0 V
Input High Voltage
V
IH
2.0
V
CC
+0.3
V
1
Input Low Voltage
V
IL
-0.3 0.8 V 1
Input Leakage Current
0V V
IN
V
IH
(max)
I
LI
-10 10
A
Output Leakage Current
0V V
OUT
V
CC
Output(s) disable
I
LO
-10 10
A
Output High Voltage
I
OH
= -2 mA
V
OH
2.4 - V
Output Low Voltage
I
OL
= 2 mA
V
OL
- 0.4 V
Note : 1.All Voltages referenced to V
SS
MAX
PARAMETER CONDITIONS
SYMBOL
-35
UNITS NOTES
Operating Current
RAS
, CAS cycling , t
RC
=min
I
CC1
150
mA
1,2
TTL interface , RAS , CAS = V
IH
,
D
OUT
=High-Z
4 mA
Standby Current
CMOS interface, RAS , CAS
V
CC
-0.2V
I
CC2
2
mA
RAS
only refresh Current t
RC
= min
I
CC3
150 mA
2
EDO Page Mode Current
t
PC
= min
I
CC4
150
mA
1,3
Standby Current
RAS
=V
IH
, CAS = V
IL
I
CC5
5 mA
1
CAS
Before RAS
Refresh
Current
t
RC
= min
I
CC6
150 mA
Battery Backup Current
(S-ver. only)
RAS
, CAS
0.2V, D
OUT
= High-Z,
CMOS interface
I
CC7
400
A
Self Refresh Current
(S-ver. only)
RAS
= CAS = V
IL
,
WE = OE = A0~A8 = V
CC
-0.2 or 0.2V
DQ0~DQ15 = V
CC
-0.2, 0.2V or open
I
CC8
400
A
Note : 1. I
CC
max is specified at the output open condition.
2. Address can be changed twice or less while RAS =V
IL .
3. Address can be changed once or less while CAS =V
IH
.
Elite Memory Technology Inc
Publication Date: Aug. 2005
Revision : 1.4 3/16
EliteMT
M11L416256SA
CAPACITANCE
(Ta = 25
, V
CC
= 3.3V
10%)
C
PARAMETER SYMBOL
TYP
MAX
UNIT
Input Capacitance (address)
C
I1
- 5 pF
Input Capacitance ( RAS , CASH , CASL , WE , OE )
C
I2
- 7 pF
Output capacitance (I/O0~I/O15)
C
I / O
- 10 pF
AC ELECTRICAL CHARACTERISTICS
(Ta = 0 to 70
, V
CC
=3.3V
C
10%, V
SS
= 0V) (note 14)
Test Conditions
Input timing reference levels : 0.8V, 2.0V
Output reference level : V
OL
= 0.8V, V
OH
=2.0V
Output Load : 2TTL gate + CL (50pF)
Assumed t
T
= 2ns
-35
PARAMETER SYMBOL
MIN MAX
UNIT
NOTES
Read or Write Cycle Time
t
RC
65
ns
Read Write Cycle Time
t
RWC
95
ns
EDO-Page-Mode Read or Write Cycle
Time
t
PC
14
ns
22
EDO-Page-Mode Read-Write Cycle
Time
t
PCM
42
ns
22
Access Time From
RAS
t
RAC
35
ns
4
Access Time From
CAS
t
CAC
10
ns
5,20
Access Time From
OE
t
OAC
10
ns
13,20
Access Time From Column Address
t
AA
18
ns
Access Time From
CAS
Precharge
t
ACP
20
ns
20
RAS
Pulse Width
t
RAS
35
10K
ns
RAS
Pulse Width (EDO Page Mode)
t
RASC
35
100K
ns
RAS
Hold Time
t
RSH
10
ns
25
RAS
Precharge Time
t
RP
25
ns
CAS
Pulse Width
t
CAS
5
10K
ns 24
CAS
Hold Time
t
CSH
30
ns
19
CAS
Precharge Time
t
CP
5
ns
6,23
RAS
to
CAS
Delay Time
t
RCD
10 25
ns
7,18
CAS
to
RAS
Precharge Time
t
CRP
5
ns
19
Row Address Setup Time
t
ASR
0
ns
Row Address Hold Time
t
RAH
5
ns
RAS
to Column Address Delay Time
t
RAD
8 17
ns
8
Column Address Setup Time
t
ASC
0
ns
18
Column Address Hold Time
t
CAH
5
ns
18
Column Address Hold Time (Reference
to
RAS
)
t
AR
30
ns
Column Address to
RAS
Lead Time
t
RAL
18
ns
Read Command Setup Time
t
RCS
0
15,18
Elite Memory Technology Inc
Publication Date: Aug. 2005
Revision : 1.4 4/16
EliteMT
M11L416256SA
(Continued)
-35
PARAMETER SYMBOL
MIN MAX
UNIT NOTES
Read Command Hold Time Reference to
CAS
t
RCH
0
ns
9,15,19
Read Command Hold Time Reference to
RAS
t
RRH
0
ns 9
CAS
to Output in Low-Z
t
CLZ
3
ns 20
Output Buffer Turn-off Delay From
CAS
or
RAS
t
OFF1
3 15
ns
10,17,20
Output Buffer Turn-off to
OE
t
OFF2
8
ns 17,26
Write Command Setup Time
t
WCS
0
ns 11,15,18
Write Command Hold Time
t
WCH
5
ns 15,25
Write Command Hold Time(Reference to
RAS
)
t
WCR
30
ns 15
Write Command Pulse Width
t
WP
5
ns 15
Write Command to
RAS
Lead Time
t
RWL
9
ns 15
Write Command to
CAS
Lead Time
t
CWL
7
ns 15,19
Data-in Setup Time
t
DS
0
ns 12,20
Data-in Hold Time
t
DH
5
ns 12,20
Data-in Hold Time (Reference to
RAS
)
t
DHR
30
ns
RAS
to
WE
Delay Time
t
RWD
51
ns 11
Column Address to
WE
Delay Time
t
AWD
34
ns 11
CAS
to
WE
Delay Time
t
CWD
26
ns 11,18
Transition Time (rise or fall)
t
T
2.5 50
ns 2,3
Refresh Period (512 cycles)
t
REF
8
ms
RAS
to
CAS
Precharge Time
t
RPC
10
ns
CAS
Setup Time(CBR REFRESH)
t
CSR
10
ns 1,18
CAS
Hold Time(CBR REFRESH)
t
CHR
10
ns 1,19
OE
Hold Time From
WE
During
Read-Mode-Write Cycle
t
OEH
4
ns 16
OE
Low to
CAS
High Setup Time
t
OES
4
ns
OE
High Hold Time From
CAS
High
t
OEHC
2
ns
OE
Precharge Time
t
OEP
2
ns
OE
Setup Prior to
RAS
During Hidden
Refresh Cycle
t
ORD
0
ns
Last
CAS
Going Low to First
CAS
Returning High
t
CLCH
5
ns 21
Data Output Hold After
CAS
Returning Low
t
COH
3
ns
Output Disable Delay From
WE
t
WHZ
3 7
ns
Self Refresh
RAS
Low Pulse width
t
RASS
100
s
27,28
Self Refresh
RAS
High Precharge Time
t
RPS
65
ns 27,28
Self Refresh
CAS
Hold Time
t
CHS
-50
ns 27,28
Elite Memory Technology Inc
Publication Date: Aug. 2005
Revision : 1.4 5/16
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