ETC M21L216128A-15T

(607
M21L216128A
SRAM
128 K x 16 SRAM
HIGH SPEED CMOS SRAM
FEATURES
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ORDERING INFORMATION
Fast access times : 10, 12, and 15ns
Fast OE access times : 5, 6, and 7ns
Single +3.3V ± 0.3V power supply
Fully static -- no clock or timing strobes necessary
All inputs and outputs are TTL-compatible
Three state outputs
Center power and ground pins for greater noise immunity
Easy memory expansive with CE and OE options
44-pin 400mil SOJ
44-pin 400mil TSOP (TypeII)
PRODUCT NO.
Acess Time
(ns)
M21L216128A-10J
Automatic CE power down
M21L216128A-10T
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M21L216128A-12J
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M21L216128A-12T
M21L216128A-15J
M21L216128A-15T
10
PACKING
TYPE
SOJ
TSOP
12
15
SOJ
TSOP
SOJ
TSOP
GENERAL DESCRIPTION
The M21L216128A is a high speed, low power
asynchronous SRAM containing 2,097,152 bits and
organized as 131,072 by 16 bits, it is produced by high
performance CMOS process.
This device offers center power and ground pins for
improved performance and noise immunity. Static design
eliminates the need for external clocks or timing strobes. For
increased system flexibility and eliminating bus contention
problems, this device offers chip enable ( CE ), separate byte
enable controls ( LB and HE ) and output enable ( OE ) with this
organization.
PIN ASSIGNMENT
SOJ Top View
A4
A3
A2
A1
A0
CE
D Q1
D Q2
D Q3
DQ4
VCC
GND
DQ5
DQ6
DQ7
DQ8
WE
A16
A15
A14
A13
A12
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
Elite Semiconduture Memory Technology Inc
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
TSOP (TypeII) Top View
A5
A4
A6
A3
A7
A2
OE
A1
HB
A0
LB
CE
DQ 16
D Q1
DQ 15
D Q2
DQ 14
D Q3
DQ 13
D Q4
GND
VC C
VC C
GND
DQ 12
DQ5
DQ 11
DQ6
DQ 10
DQ7
D Q9
DQ8
NC
WE
A8
A1 6
A9
A1 5
A10
A1 4
A11
A1 3
NC
A1 2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
A5
A6
A7
OE
HB
LB
DQ16
DQ15
DQ14
DQ13
GND
VCC
DQ12
DQ11
DQ10
D Q9
NC
A8
A9
A1 0
A1 1
NC
Publication Date : Sep. 2000
Revision : 1.0
1/14
(607
M21L216128A
Block Diagram
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MEMORY ARRAY
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Pin Descriptions
Pin No.
Symbol
Description
1 - 5, 18 - 22,
24-27, 42 - 44
A0 - A16
6
CE
7 - 10, 13 - 16,
29 - 32, 35 - 38
DQ1 - DQ16
17
WE
Write Enable Input
39
LB
Lower Byte Enable Input (DQ1 to DQ8)
40
HB
Higher Byte Enable Input (DQ9 to
DQ16)
41
OE
Output Enable Input
11, 33
VCC
Power
12, 34
GND
Ground
23, 28
NC
Address Inputs
Chip Enable Input
Data Inputs/Outputs
No Connection
Elite Semiconduture Memory Technology Inc
Publication Date : Sep. 2000
Revision : 1.0
2/14
(607
M21L216128A
ABSOLUTE MAXIMUM RATINGS *
Voltage on VCC Supply Relative to Vss … ……-0.5V to +4.6V
VIN …………………………………………..….-0.5V to VCC+1.0V
Operating Temperature, Topr ………………….. 0 °C to +70 °C
Storage Temperature (plastic) ……………….-55 °C to +125 °C
Junction Temperature ……………………………………+125 °C
Power Dissipation …..…………………………………….…1.0W
*Stresses greater than those listed under Absolute
Maximum. Ratings may 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 operational sections of this specification is
not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
Short Circuit Output Current ………………………………50mA
DC ELECTRICAL CHARACTERISTICS AND RECOMMENDED OPERATIONS
(All Temperature Ranges ; VCC = 3.3V ± 0.3V unless otherwise noted)
DESCRIPTION
CONDITIONS
SYMBOL
MIN
MAX
UNITS NOTES
Input High (Logic 1) Voltage
VIH
2.2
VCC+0.5
V
1,2
Input Low (Logic 0) Voltage
VII
-0.5
0.8
V
1,2
Input Leakage Current
0V ≤ VIN ≤ VCC
ILI
-10
10
µA
Output Leakage Current
Output(s) disable
0V ≤ VOUT ≤ VCC
ILO
-5
5
µA
Output High Voltage
IOH = -4.0 mA
VOH
2.4
Output Low Voltage
IOL = 8.0 mA
VOL
Supply Voltage
VCC
DESCRIPTION
CONDITIONS
3.0
V
1
0.4
V
1
3.6
V
1
MAX
SYMBOL
-10
-12
-15
UNITS
NOTES
3
Power Supply
Current : Operating
Device selected; CE ≤ VIL; VCC=MAX;
f=fMAX ; outputs open
ICC
190
160
130
mA
TTL Standby
CE ≥ VIH; VCC=MAX; f=fMAX
ISB1
35
30
25
mA
CMOS Standby
CE1 ≥ VCC-0.2; VCC = MAX;
all other inputs ≤ GND +0.2 or ≥ VCC -0.2;
all inputs static ; f=0
ISB2
10
10
10
mA
CAPACITANCE
DESCRIPTION
Input Capacitance
CONDITIONS
SYMBOL
MAX
TA= 25°C ; f=1 MHz
CI
6
pF
4
VCC=3.3V
CI/O
8
pF
4
Input/Output Capacitance(DQ)
Elite Semiconduture Memory Technology Inc
UNITS NOTES
Publication Date : Sep. 2000
Revision : 1.0
3/14
(607
M21L216128A
AC ELECTRICAL CHARACTERISTICS
(Note 5)(All Temperature Ranges; VCC =3.3V ± 0.3V)
DESCRIPTION
SYMBOL
-10
MIN
-12
MAX
MIN
-15
MAX
MIN
MAX
UNIT
Notes
Read Cycle
Read Cycle Time
tRC
10
12
Access access time
tAA
10
12
15
ns
Chip Enable access time
tACE
10
12
15
ns
Output hold from address change
tOH
3
4
4
ns
Chip Enable to output in Low-Z
tCLZ
3
4
4
ns
4,7
Chip disable to output in High-Z
tCHZ
5
6
7
ns
4,6,7
Output Enable access time
tOE
5
6
7
ns
Output Enable to output in Low-Z
tOLZ
Output Disable to output in High-Z
tOHZ
5
6
7
ns
Byte Enable access time
tBE
6
7
8
ns
Byte Enable to output in Low-Z
tBLZ
Byte disable to output in High-Z
tBHZ
0
15
0
0
0
0
5
ns
ns
0
6
7
4,6
ns
4,7
ns
4,6,7
Write Cycle
Write cycle time
tWC
10
12
15
ns
Chip Enable to end of write
tCW
8
8
9
ns
Address valid to end of write, with
OE HIGH
tAW
8
8
9
ns
Address setup time
tAS
0
0
0
ns
Address hold from end of write
tWR
0
0
0
ns
Write pulse width
tWP2
10
10
11
ns
Write pulse width, with OE HIGH
tWP1
8
8
9
ns
Data setup time
tDW
5
6
7
ns
Data hold time
tDH
0
0
0
ns
Write disable to output in Low-Z
tOW
3
4
5
ns
4,7
Byte Enable to output in High-Z
tWHZ
ns
4,6,7
Byte Enable to end of write
tBW
Elite Semiconduture Memory Technology Inc
5
8
6
8
7
9
ns
Publication Date : Sep. 2000
Revision : 1.0
4/14
(607
M21L216128A
TRUTH TABLE
MODE
CE
WE
OE
LE
HE
DQ1-DQ8
DQ9-DQ16
POWER
LOW BYTE READ (DQ1-DQ8)
L
H
L
L
H
Q
HIGH-Z
ACTIVE
HIGH BYTE READ (DQ9-DQ16)
L
H
L
H
L
HIGH-Z
Q
ACTIVE
WORD READ (DQ1-DQ16)
L
H
L
L
L
Q
Q
ACTIVE
LOW BYTE WRITE (DQ1-DQ8)
L
L
X
L
H
D
HIGH-Z
ACTIVE
HIGH BYTE WRITE (DQ9-DQ16)
L
L
X
H
L
HIGH-Z
D
ACTIVE
WORD WRITE (DQ1-DQ16)
L
L
X
L
L
D
D
ACTIVE
L
X
X
H
H
HIGH-Z
HIGH-Z
ACTIVE
L
H
H
X
X
HIGH-Z
HIGH-Z
ACTIVE
H
X
X
X
X
HIGH-Z
HIGH-Z
STANBY
OUTPUT DISABLE
STANDBY
AC TEST CONDITIONS
Input plus levels
0V to 3.0V
Input rise and fail times
1.5ns
Input timing reference levels
1.5V
Output reference levels
1.5V
Output load
See Figures 1 and 2
3.3V
DQ
317
è
Z0 =50
50
è
è
DQ
30pF
è
5pF
351
Vt=1.5V
Fig.1 OUTPUT LOAD EQUIVALENT
Elite Semiconduture Memory Technology Inc
Fig.2 OUTPUT LOAD EQUIVALENT
Publication Date : Sep. 2000
Revision : 1.0
5/14
(607
M21L216128A
NOTES
1.
All voltages referenced to GND (VSS).
2.
Overshoot : VIH ≤ +6.0V for t ≤ tRC /2.
Undershoot : VIL ≤ -2.0V for t ≤ tRC /2.
3.
ICC is given without output current. ICC increases with greater output loading and faster cycle times.
4.
This parameter is sampled.
5.
Test conditions as specified with the output loading as shown in Fig. 1 unless otherwise noted.
6.
Output loading is specified with CL=5pF as in Fig.2. Transition is measured ± 500mV from steady static voltage.
7.
At any give temperature and voltage conditions, tCHZ is less than tCLZ and tWHZ is less than tOW
8.
WE is High for Read cycle.
9.
Device is continuously selected. Chip enable and output enables are held in their active state.
10. Address valid prior to, or coincident with, latest occurring chip enable.
11. tRC=Read Cycle Time.
12. Chip Enable and Write Enable can initiate and terminate a Write cycle.
13. Capacitance derating applies to capacitance different from the load capacitance shown in
Fig. 1.
Elite Semiconduture Memory Technology Inc
Publication Date : Sep. 2000
Revision : 1.0
6/14
(607
M21L216128A
Timing Waveforms
Read Cycle 1(8, 9)
tRC
Addr ess
tAA
tCH
Dout
Read Cycle 2(7, 8, 9, 10)
tRC
Addr es s
tAA
CE
tACE
tCHZ
tCLZ
tBE
HB,LB
tBHZ
tBLZ
OE
tOE
tOHZ
tOLZ
Dout
: DON'T CARE
: UNDEFINED
Elite Semiconduture Memory Technology Inc
Publication Date : Sep. 2000
Revision : 1.0
7/14
(607
M21L216128A
Timing Waveforms (continued)
Write Cycle 1(7, 12, 13)
(Write Enable Controlled with Output Enable OE active LOW)
tWC
Address
tAW
tWR
tCW
CE
tBW
HB,LB
tA S
tWP2
WE
tDW
tDH
Di n
tWHZ
tOW
Dout
DON'T CARE
U NDEFINED
Elite Semiconduture Memory Technology Inc
Publication Date : Sep. 2000
Revision : 1.0
8/14
(607
M21L216128A
Timing Waveforms (continued)
Write Cycle 2(12, 13)
(Write Enable Controlled with Output Enable OE active HIGH)
tWC
Address
tAW
tWR
tCW
CE
tBW
HB,LB
tA S
tWP1
WE
tDW
tDH
Di n
Dout
HIG H-Z
DON'T CARE
U NDEFINED
Elite Semiconduture Memory Technology Inc
Publication Date : Sep. 2000
Revision : 1.0
9/14
(607
M21L216128A
Timing Waveforms (continued)
Write Cycle 3(12, 13)
(Chip Enable Controlled)
tW C
A d d res s
tWR
tAW
tAS
tCW
CE
tBW
HB,LB
tWP1
WE
tDW
tDH
Din
Dout
HIGH -Z
DON'T CARE
UN DEFINED
Elite Semiconduture Memory Technology Inc
Publication Date : Sep. 2000
Revision : 1.0
10/14
(607
M21L216128A
Timing Waveforms (continued)
Write Cycle 4(12, 13)
(Byte Enable Controlled)
tW C
A d d res s
tAW
tCW
CE
tAS
tBW
tWR
HB,LB
tWP1
WE
tDW
tDH
Din
Dout
HIGH -Z
DON'T CARE
UN DEFINED
Elite Semiconduture Memory Technology Inc
Publication Date : Sep. 2000
Revision : 1.0
11/14
(607
PACKING
44-LEAD
M21L216128A
DIMENSIONS
SOJ
SYMBOL
SRAM(400mil)
DIMENSION ( INCH )
DIMENSION ( MM )
MIN
NOM
MAX
MIN
NOM
MAX
A
0.128
0.138
0.148
3.25
3.51
3.76
A1
0.082
-
-
2.08
-
-
A2
0.025
-
-
0.60
-
-
b
0.015
-
0.020
0.38
-
0.51
b1
0.015
-
0.018
0.38
-
0.46
c
0.007
-
0.013
0.18
-
0.21
c1
0.007
0.008
0.011
0.18
0.20
0.28
D
1.120
1.125
1.130
28.45
28.58
28.70
E
0.435
0.440
0.445
11.05
11.18
11.30
E1
0.394
0.400
0.405
10.01
10.16
10.29
10º
0º
ð
e
0º
0.050BSC
Elite Semiconduture Memory Technology Inc
10º
1.27 BSC
Publication Date : Sep. 2000
Revision : 1.0
12/14
(607
PACKING
44-LEAD
Symbol
A
A1
A2
B
B1
C
C1
D
ZD
E
E1
L
L1
e
θ
M21L216128A
DIMENSIONS
TSOP(II)
SRAM(400mil)
Dimension in mm
Min
Norm
Max
1.20
0.05
0.15
0.95
1.00
1.05
0.30
0.45
0.30
0.35
0.40
0.12
0.21
0.10
0.16
18.28
18.41
18.54
0.805 REF
11.56
11.76
11.96
10.03
10.16
10.29
0.40
0.59
0.69
0.80 REF
0.80 BSC
°
°
Elite Semiconduture Memory Technology Inc
Dimension in inch
Min
Norm
Max
0.047
0.002
0.006
0.037
0.039
0.042
0.012
0.018
0.012
0.014
0.016
0.005
0.008
0.004
0.006
0.720
0.725
0.730
0.0317 REF
0.455
0.463
0.471
0.395
0.400
0.4
0.016
0.023
0.027
0.031 REF
0.0315 BSC
°
°
Publication Date : Sep. 2000
Revision : 1.0
13/14
(607
M21L216128A
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Elite Semiconduture Memory Technology Inc
Publication Date : Sep. 2000
Revision : 1.0
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