LP621024D-T Series
128K X 8 BIT CMOS SRAM
Document Title
128K X 8 BIT CMOS SRAM
Revision History
Rev. No.
1.1
1.2
History
Add Pb-Free package type
Remove non-Pb-free package type
Issue Date
August 19, 2004
July 3, 2006
Remark
Final
(July, 2005, Version 1.2)
AMIC Technology, Corp.
LP621024D-T Series
128K X 8 BIT CMOS SRAM
Features
Single +5V power supply
Access times: 55/70 ns (max.)
Current:
Very low power version: Operating: 70mA (max.)
Standby:
50µA (max.)
Full static operation, no clock or refreshing required
All inputs and outputs are directly TTL-compatible
Common I/O using three-state output
Output enable and two chip enable inputs for easy
application
Data retention voltage: 2V (min.)
Available in 32-pin DIP, SOP TSOP and TSSOP (8 X
13.4mm) packages
Pb-Free package only
All Pb-free (Lead-free) products are RoHS compliant
General Description
The LP621024D-T is a low operating current 1,048,576-bit
static random access memory organized as 131,072 words
by 8 bits and operates on a single 5V power supply.
Inputs and three-state outputs are TTL compatible and allow
for direct interfacing with common system bus structures.
Two chip enable inputs are provided for POWER-DOWN and
device enable and an output enable input is included for easy
interfacing.
Data retention is guaranteed at a power supply voltage as
low as 2V.
Product Family
Product Family
Operating
Temperature
VCC
Range
Power Dissipation
Speed
Data Retention
(I
CCDR
, Typ.)
0.5µA
Standby
(I
SB1
, Typ.)
2µA
Operating
(I
CC2
, Typ.)
10mA
Package
Type
32L DIP/
SOP/TSOP/
TSSOP
LP621024D
-25°C to +85°C
4.5V~5.5V
55ns / 70ns
1. Typical values are measured at VCC = 5.0V, T
A
= 25°C and not 100% tested.
2. Data retention current VCC = 2.0V.
Pin Configurations
DIP
NC
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O
1
I/O
2
I/O
3
GND
1
2
3
4
5
32
31
30
29
28
VCC
A15
CE2
WE
A13
A8
A9
A11
OE
A10
CE1
I/O
8
I/O
7
I/O
6
I/O
5
I/O
4
NC
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O
1
I/O
2
I/O
3
GND
1
2
3
4
5
SOP
32
31
30
29
28
VCC
A15
CE2
WE
A13
16
TSOP/(TSSOP)
1
LP621024DM-T
LP621024DV-T
(LP621024DX-T)
6
7
8
9
10
11
12
13
14
15
16
27
26
25
24
23
22
21
20
19
18
17
6
7
8
9
10
11
12
13
14
15
16
27
26
25
24
23
22
21
20
19
18
17
A8
A9
A11
OE
A10
CE1
I/O
8
I/O
7
I/O
6
I/O
5
I/O
4
17
(July, 2005, Version 1.2)
LP621024D-T
32
Pin No.
Pin
Name
Pin No.
Pin
Name
1
A11
17
A3
2
A9
18
A2
3
A8
19
A1
4
A13
20
A0
5
WE
21
I/O
1
6
CE2
22
I/O
2
7
A15
23
I/O
3
8
VCC
24
GND
9
NC
25
I/O
4
10
A16
26
I/O
5
11
A14
27
I/O
6
12
A12
28
I/O
7
13
A7
29
I/O
8
14
A6
30
CE1
15
A5
31
A10
16
A4
32
OE
1
AMIC Technology, Corp.
LP621024D-T Series
Block Diagram
A0
VCC
GND
A14
A15
A16
ROW
DECODER
512 X 2048
MEMORY ARRAY
I/O
1
INPUT DATA
CIRCUIT
COLUMN I/O
I/O
8
CE2
CE1
OE
WE
CONTROL
CIRCUIT
Pin Descriptions - DIP/SOP
Pin No.
1
2 - 12, 23,
25 - 28, 31
13 - 15,
17 - 21
16
22
Symbol
NC
A0 - A16
Description
No Connection
Address Inputs
Pin Description - TSOP/TSSOP
Pin No.
Symbol
Description
1 - 4, 7,
10 - 20, 31
5
6
8
9
21 - 23,
25 - 29
24
30
32
A0 - A16
WE
CE2
VCC
NC
I/O
1
- I/O
8
GND
CE1
OE
Address Inputs
Write Enable
Chip Enable
Power Supply
No Connection
Data Input/Outputs
Ground
Chip Enable
Output Enable
I/O
1
- I/O
8
GND
Data Input/Outputs
Ground
CE1
OE
WE
CE2
VCC
Chip Enable
Output Enable
Write Enable
Chip Enable
Power Supply (+5V)
24
29
30
32
(July, 2005, Version 1.2)
2
AMIC Technology, Corp.
LP621024D-T Series
Recommended DC Operating Conditions
(T
A
= -25
°
C to + 85
°
C)
Symbol
Parameter
Min.
Typ.
Max.
Unit
Supply Voltage
GND
V
IH
V
IL
C
L
TTL
Ground
Input High Voltage
Input Low Voltage
Output Load
Output Load
4.5
0
2.2
-0.3
-
-
5.0
0
3.5
0
-
-
5.5
0
VCC + 0.3
+0.8
30
1
V
V
V
V
pF
-
Absolute Maximum Ratings*
VCC to GND ..............................................-0.5V to + 7.0V
IN, IN/OUT Volt to GND.................... -0.5V to VCC + 0.5V
Operating Temperature, Topr .................. -25
°
C to + 85
°
C
Storage Temperature, Tstg.................... -55
°
C to + 125
°
C
Temperature Under Bias, Tbias............... -10
°
C to + 85
°
C
Power Dissipation, P
T........................................................................
0.7W
Soldering Temp. & Time ............................. 260
°
C, 10 sec
*Comments
Stresses above those listed under "Absolute Maximum
Ratings" may cause permanent damage to this device.
These are stress ratings only. Functional operation of this
device at these or any other conditions above those
indicated in the operational sections of this specification is
not implied or intended. Exposure to the absolute maximum
rating conditions for extended periods may affect device
reliability.
DC Electrical Characteristics
Symbol
Parameter
(T
A
= -25
°
C to + 85
°
C, VCC = 5V
±
10%, GND = 0V)
LP621024D-55LLT
Min.
Max.
LP621024D-70LLT
Min.
Max.
Unit
Conditions
⎜
I
LI
⎥
Input Leakage
Current
-
1
-
1
µ
A
V
IN
= GND to VCC
CE1 = V
IH
or CE2 = V
IL
or OE = V
IH
or WE = V
IL
V
I/O
= GND to VCC
CE1 = V
IL
, CE2 = V
IH
I
I/O
= 0mA
Min. Cycle, Duty = 100%
CE1 = V
IL
, CE2 = V
IH
I
I/O
= 0mA
CE1 = V
IL
, CE2 = V
IH
V
IH
= VCC, V
IL
= 0V
f = 1MH
Z,
I
I/O
= 0mA
⎜
I
LO
⎥
Output Leakage
Current
Active Power
Supply Current
-
1
-
1
µ
A
I
CC
-
15
-
15
mA
I
CC1
Dynamic
Operating
Current
-
70
-
70
mA
I
CC2
-
15
-
15
mA
(July, 2005, Version 1.2)
3
AMIC Technology, Corp.
LP621024D-T Series
DC Electrical Characteristics (continued)
Symbol
Parameter
LP621024D-55LLT
Min.
Max.
LP621024D-70LLT
Min.
Max.
Unit
Conditions
I
SB
-
2
-
2
mA
CE1 = V
IH
or CE2 =V
IL
CE1
≥
VCC - 0.2V
CE2
≥
VCC - 0.2V
V
IN
≥
0V
CE2
≤
0.2V
V
IN
≥
0V
I
OL
= 2.1mA
I
SB1
Standby Power
Supply Current
-
50
-
50
µ
A
I
SB2
Output Low
Voltage
Output High
Voltage
-
50
-
50
µ
A
V
OL
-
0.4
-
0.4
V
V
OH
2.4
-
2.4
-
V
I
OH
= -1.0mA
Truth Table
Mode
CE1
H
X
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
SB2
I
CC,
I
CC1,
I
CC2
I
CC,
I
CC1,
I
CC2
I
CC,
I
CC1,
I
CC2
Standby
Output Disable
Read
Write
Note: X = H or L
L
L
L
Capacitance
(T
A
= 25
°
C, f = 1.0MHz)
Symbol
C
IN
*
C
I/O
*
Parameter
Input Capacitance
Input/Output Capacitance
Min.
Max.
6
8
Unit
pF
pF
Conditions
V
IN
= 0V
V
I/O
= 0V
* These parameters are sampled and not 100% tested.
(July, 2005, Version 1.2)
4
AMIC Technology, Corp.