
LP62S1024B-T Series
Preliminary 128K X 8 BIT LOW VOLTAGE CMOS SRAM
PRELIMINARY (October, 2002, Version 0.1) AMIC Technology, Corp.
Document Title
128K X 8 BIT LOW VOLTAGE CMOS SRAM
Revision History
Rev. No. History Issue Date Remark
0.0 Initial issue February 19, 2002 Preliminary
0.1 Add 32L Pb-Free TSSOP package type October 2, 2002

LP62S1024B-T Series
Preliminary 128K X 8 BIT LOW VOLTAGE CMOS SRAM
PRELIMINARY (October, 2002, Version 0.1) 1 AMIC Technology, Corp.
Features General Description
n Power supply range: 2.7V to 3.6V
n Access times: 55/70 ns (max.)
n Current:
Very low power version: Operating: 30mA(max.)
Standby: 5uA (max.)
n Full static operation, no clock or refreshing required
n All inputs and outputs are directly TTL-compatible
n Common I/O using three-state output
n Output enable and two chip enable inputs for easy
application
n Data retention voltage: 2V (min.)
n Available in 32-pin SOP, TSOP, TSSOP (8 X 13.4mm)
forward type and 36-pin CSP packages
The LP62S1024B-T is a low operating current 1,048,576bit static random access memory organized as 131,072
words by 8 bits and operates on a low power voltage: 2.7V
to 3.6V. It is built using AMIC's high performance CMOS
process.
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
Power Dissipation
Product Family Operating
Temperature
VCC
Range
Speed
Data Retention
(ICCDR, Typ.)
Standby
(ISB1, Typ.)
Operating
(ICC2, Typ.)
Package
Type
LP62S1024B
-25°C ~ +85°C
2.7V~3.6V 55ns / 70ns
0.05µA 0.08µA
1.5mA
32L SOP
32L TSOP
32L TSSOP
36B µBGA
1. Typical values are measured at VCC = 3.0V, TA = 25°C and not 100% tested.
2. Data retention current VCC = 2.0V.

LP62S1024B-T Series
PRELIMINARY (October, 2002, Version 0.1) 2 AMIC Technology, Corp.
Pin Configurations
nn SOP nn TSOP/TSSOP nn CSP (Chip Size Package)
36-pin Top View
NC
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O1
I/O2
I/O
3
I/O4GND
I/O
5
I/O
6
I/O7
I/O8
A10
A9
A8
A13
CE2
A15
VCC
A11
LP62S1024BM-T
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16 17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
OE
LP62S1024BV-T
(LP62S1024BX-T)
1
16
17
32
CE1
WE
A0
I/O5
I/O6
GND
VCC
I/O7
I/O8
A9 A10OEA11
CE1
A12 A13 A14
A16
NC NC
A15
I/O4
I/O3
I/O2
I/O1
GND
VCC
A1A2CE2
WE
NC A5
A4
A3 A6
A7
A8
654321
A
B
C
D
E
F
G
H
Pin No.
Pin
Name
Pin No.
Pin
Name
1 2A93 4 5 6 7 8 9 10 11 12 13 14
302928272625242219 2120 231817
A8 A13 CE2 A15 VCC NC
I/O
8
A16 A14 A12 A7 A6
A3 A2 A1 A0 I/O1I/O
2
GND I/O4I/O5I/O6I/O
7
I/O
3
A11 WE
CE1
15 16
31 32
A5 A4
A10 OE
Block Diagram
ROW
DECODER
512 X 2048
MEMORY ARRAY
INPUT DATA
CIRCUIT
COLUMN I/O
CONTROL
CIRCUIT
CE2
CE1
WE
I/O8
I/O1
A16
A15
A14
A0
VCC
GND
OE

LP62S1024B-T Series
PRELIMINARY (October, 2002, Version 0.1) 3 AMIC Technology, Corp.
Pin Descriptions - SOP
Pin No. Symbol Description
1 NC No Connection
2 - 12, 23,
25 - 28, 31
A0 - A16 Address Inputs
13 - 15,
17 - 21
I/O1 - I/O8 Data Input/Outputs
16 GND Ground
22
CE1
Chip Enable
24
OE
Output Enable
29
WE
Write Enable
30 CE2 Chip Enable
32 VCC Power Supply
Pin Description – TSOP/TSSOP
Pin No. Symbol Description
1 - 4, 7,
10 - 20, 31
A0 - A16 Address Inputs
5
WE
Write Enable
6 CE2 Chip Enable
8 VCC Power Supply
9 NC No Connection
21 - 23,
25 - 29
I/O1 - I/O8 Data Input/Outputs
24 GND Ground
30
CE1
Chip Enable
32
OE
Output Enable
Pin Description - CSP
Symbol Description Symbol Description
A0 - A16 Address Inputs NC No Connection
WE
Write Enable I/O1 - I/O8 Data Input/Output
OE
Output Enable VCC Power Supply
CE1
Chip Enable GND Ground
CE2 Chip Enable -- --

LP62S1024B-T Series
PRELIMINARY (October, 2002, Version 0.1) 4 AMIC Technology, Corp.
Recommended DC Operating Conditions
(TA = -25°C to +85°C)
Symbol Parameter Min. Typ. Max. Unit
VCC Supply Voltage 2.7 3.0 3.6 V
GND Ground 0 0 0 V
VIH Input High Voltage 2.2 - VCC + 0.3 V
VIL Input Low Voltage -0.3 - +0.6 V
CL Output Load - - 30 pF
TTL Output Load - - 1 -
Absolute Maximum Ratings*
VCC to GND .............................................. -0.5V to +4.6V
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, PT ...............................................0.7W
*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 (TA = -25°C to +85°C, VCC = 2.7V to 3.6V, GND = 0V)
Symbol Parameter LP62S1024B-55LLT/70LLT Unit Conditions
Min. Max.
ILI
Input Leakage Current
- 1
µA
VIN = GND to VCC
ILO
Output Leakage Current
- 1
µA
CE1 = VIH or CE2 = VIL
or OE = VIH or WE = VIL
VI/O = GND to VCC
ICC
Active Power Supply
Current
- 3 mA
CE1 = VIL, CE2 = VIH
II/O = 0mA
ICC1
Dynamic Operating
- 30
mA
Min. Cycle, Duty = 100%
CE1 = VIL, CE2 = VIH
II/O = 0mA
ICC2
Current
- 3 mA
CE1 = VIL, CE2 = VIH
VIH = VCC, VIL = 0V
f = 1 MHZ, II/O = 0mA

LP62S1024B-T Series
PRELIMINARY (October, 2002, Version 0.1) 5 AMIC Technology, Corp.
DC Electrical Characteristics (continued)
Symbol Parameter
LP62S1024B-55LLT/70LLT
Unit Conditions
Min. Max.
ISB - 0.5 mA
VCC ≤ 3.3V
CE1 = VIH or CE2 =VIL
ISB1
Standby Power Supply Current
- 5
µA
VCC ≤ 3.3V
CE1 ≥ VCC - 0.2V or
CE2 ≤ 0.2V
VIN ≥ 0V
VOL Output Low Voltage - 0.4 V IOL = 2.1mA
VOH Output High Voltage 2.2 - V IOH = -1.0mA
Truth Table
Mode
I/O Operation Supply Current
Standby
H X X X High Z ISB, ISB1
X L X X High Z ISB, ISB2
Output Disable L H H H High Z ICC, ICC1, ICC2
Read L H L H DOUT ICC, ICC1, ICC2
Write L H X L DIN ICC, ICC1, ICC2
Note: X = H or L
Capacitance (TA = 25°C, f = 1.0MHz)
Symbol Parameter Min. Max. Unit Conditions
CIN* Input Capacitance 6 pF VIN = 0V
CI/O* Input/Output Capacitance 8 pF VI/O = 0V
* These parameters are sampled and not 100% tested.

LP62S1024B-T Series
PRELIMINARY (October, 2002, Version 0.1) 6 AMIC Technology, Corp.
AC Characteristics (TA = -25°C to +85°C, VCC = 2.7V to 3.6V)
Symbol Parameter
LP62S1024B-55LLT LP62S1024B-70LLT
Unit
Min. Max. Min. Max.
Read Cycle
tRC Read Cycle Time 55 - 70 - ns
tAA Address Access Time - 55 - 70 ns
tACE1
Chip Enable Access Time
CE1
- 55 - 70 ns
tACE2 CE2 - 55 - 70 ns
tOE Output Enable to Output Valid - 30 - 35 ns
tCLZ1
Chip Enable to Output in Low Z
CE1
10 - 10 - ns
tCLZ2 CE2 10 - 10 - ns
tOLZ Output Enable to Output in Low Z 5 - 5 - ns
tCHZ1
Chip Disable to Output in High Z
CE1
0 20 0 25 ns
tCHZ2 CE2 0 20 0 25 ns
tOHZ Output Disable to Output in High Z 0 20 0 25 ns
tOH Output Hold from Address Change 5 - 10 - ns
Write Cycle
tWC Write Cycle Time 55 - 70 - ns
tCW Chip Enable to End of Write 50 - 60 - ns
tAS Address Setup Time 0 - 0 - ns
tAW Address Valid to End of Write 50 - 60 - ns
tWP Write Pulse Width 40 - 50 - ns
tWR Write Recovery Time 0 - 0 - ns
tWHZ Write to Output in High Z 0 25 0 25 ns
tDW Data to Write Time Overlap 25 - 30 - ns
tDH Data Hold from Write Time 0 - 0 - ns
tOW Output Active from End of Write 5 - 5 - ns
Notes: tCHZ1, tCHZ2, tOHZ, and tWHZ are defined as the time at which the outputs achieve the open circuit condition and are
not referred to output voltage levels.

LP62S1024B-T Series
PRELIMINARY (October, 2002, Version 0.1) 7 AMIC Technology, Corp.
Timing Waveforms
Read Cycle 1
(1, 2, 4)
tRC
tOH
tAA
tOH
Address
DOUT
Read Cycle 2
(1, 3, 4, 6)
tCLZ1
5
tACE1
tCHZ1
5
CE1
DOUT
Read Cycle 3
(1, 4, 7, 8)
tCLZ2
5
tACE2
tCHZ2
5
CE2
DOUT

LP62S1024B-T Series
PRELIMINARY (October, 2002, Version 0.1) 8 AMIC Technology, Corp.
Timing Waveforms (continued)
Read Cycle 4
(1)
tRC
Address
CE2
DOUT
tAA
tOE
tOLZ
5
tACE1
tCLZ1
5
tACE2
tCLZ2
5
tCHZ2
5
tOHZ
5
tCHZ1
5
tOH
OE
CE1
Notes: 1. WE is high for Read Cycle.
2. Device is continuously enabled CE1 = VIL and CE2 = VIH.
3. Address valid prior to or coincident with CE1 transition low.
4. OE = VIL.
5. Transition is measured ±500mV from steady state. This parameter is sampled and not 100% tested.
6. CE2 is high.
7. CE1 is low.
8. Address valid prior to or coincident with CE2 transition high.

LP62S1024B-T Series
PRELIMINARY (October, 2002, Version 0.1) 9 AMIC Technology, Corp.
Timing Waveforms (continued)
Write Cycle 1
(6)
(Write Enable Controlled)
tWC
Address
CE1
CE2
DIN
tOW
tDH
tDW
tWHZ
tWP
2
tAS
1
(4)
tCW
5
tAW
tWR
3
WE
DOUT
(4)

LP62S1024B-T Series
PRELIMINARY (October, 2002, Version 0.1) 10 AMIC Technology, Corp.
Timing Waveforms (continued)
Write Cycle 2
(Chip Enable Controlled)
tWC
Address
CE1
CE2
DIN
tDH
tDW
(4)
(4)
tCW
5
tAW tWR
3
WE
DOUT
tWHZ
7
tWP
2
tCW
5
tAS
1
Notes: 1. tAS is measured from the address valid to the beginning of Write.
2. A Write occurs during the overlap (tWP) of a low CE1, a high CE2 and a low WE .
3. tWR is measured from the earliest of CE1 or WE going high or CE2 going low to the end of the Write cycle.
4. If the CE1 low transition or the CE2 high transition occurs simultaneously with the WE low transition or after
the WE transition, outputs remain in a high impedance state.
5. tCW is measured from the later of CE1 going low or CE2 going high to the end of Write.
6. OE is continuously low. ( OE = VIL)
7. Transition is measured ±500mV from steady state. This parameter is sampled and not 100% tested.

LP62S1024B-T Series
PRELIMINARY (October, 2002, Version 0.1) 11 AMIC Technology, Corp.
AC Test Conditions
Input Pulse Levels 0.4V to 2.4V
Input Rise and Fall Time 5 ns
Input and Output Timing Reference Levels 1.5V
Output Load See Figures 1 and 2
30pF
* Including scope and jig. * Including scope and jig.
CL
TTL
5pF
CL
TTL
Figure 1. Output Load Figure 2. Output Load for tCLZ1,
tCLZ2, tOHZ, tOLZ, tCHZ1,
tCHZ2, tWHZ, and tOW
Data Retention Characteristics (TA = -25°C to 85°C)
Symbol Parameter Min. Max. Unit Conditions
VDR1 2.0 3.6 V
CE1 ≥ VCC - 0.2V
VDR2
VCC for Data Retention
2.0 3.6 V
CE2 ≤ 0.2V,
ICCDR1
Data Retention Current
-
3*
µA
VCC = 2V,
CE1 ≥ VCC - 0.2V,
VIN ≥ 0V
ICCDR2
-
3*
µA
VCC = 2V,
CE2 ≤ 0.2V,
VIN ≥ 0V
tCDR Chip Disable to Data Retention Time 0 - ns
See Retention Waveform
tR Operation Recovery Time 5 - ms
* LP62S1024B-55LLT/70LLT ICCDR: max. 3µA at TA = 0°C to + 40°C

LP62S1024B-T Series
PRELIMINARY (October, 2002, Version 0.1) 12 AMIC Technology, Corp.
Low VCC Data Retention Waveform (1) (
Controlled)
VCC
CE1
tCDR
VIH
3.0V
tR
VIH
3.0V
DATA RETENTION MODE
VDR ≥ 2V
CE1 ≥ VDR - 0.2V
Low VCC Data Retention Waveform (2) (CE2 Controlled)
VCC
CE2
tCDR
VIL
3.0V
tR
VIL
3.0V
DATA RETENTION MODE
VDR ≥ 2V
CE2 ≤ 0.2V

LP62S1024B-T Series
PRELIMINARY (October, 2002, Version 0.1) 13 AMIC Technology, Corp.
Ordering Information
Part No. Access Time (ns)
Operating Current
Max. (mA)
Standby Current
Max. (µµA)
Package
LP62S1024BM-55LLT 32L SOP
LP62S1024BV-55LLT 32L TSOP
LP62S1024BX-55LLT 32L TSSOP
LP62S1024BX-55LLTF 32L Pb-Free TSSOP
LP62S1024BU-55LLT
55 30 5
36L CSP
LP62S1024BM-70LLT 32L SOP
LP62S1024BV-70LLT 32L TSOP
LP62S1024BX-70LLT 32L TSSOP
LP62S1024BX-70LLTF 32L Pb-Free TSSOP
LP62S1024BU-70LLT
70 30 5
36L CSP

LP62S1024B-T Series
PRELIMINARY (October, 2002, Version 0.1) 14 AMIC Technology, Corp.
Package Information
SOP (W.B.) 32L Outline Dimensions unit: inches/mm
1
E
HE
L
LE
c
16
See Detail F
Detail F
1732
e1
e1
A1 A2
A
s
D
Seating Plane
D
y
e
b
~
~
Symbol Dimensions in inches Dimensions in mm
A 0.118 Max. 3.00 Max.
A1 0.004 Min. 0.10 Min.
A2 0.106±0.005 2.69±0.13
b 0.016 +0.004 0.41 +0.10
-0.05
c 0.008 +0.004 0.20 +0.10
-0.002 -0.05
D 0.805 Typ. (0.820 Max.) 20.45 Typ. (20.83 Max.)
E 0.445±0.010 11.30±0.25
e 0.050 ±0.006 1.27±0.15
e1 0.525 NOM. 13.34 NOM.
HE 0.556±0.010 14.12±0.25
L 0.031±0.008 0.79±0.20
LE 0.055±0.008 1.40±0.20
S 0.044 Max. 1.12 Max.
y 0.004 Max. 0.10 Max.
θ 0° ~ 10° 0° ~ 10°
Notes:
1. The maximum value of dimension D includes end flash.
2. Dimension E does not include resin fins.
3. Dimension e1 is for PC Board surface mount pad pitch design
reference only.
4. Dimension S includes end flash.

LP62S1024B-T Series
PRELIMINARY (October, 2002, Version 0.1) 15 AMIC Technology, Corp.
Package Information
TSOP 32L TYPE I (8 X 20mm) Outline Dimensions unit: inches/mm
e
LE
L
GAUGE PLANE
A
A2
c
0.25
BSC
Detail "A"
D
y
Detail "A"
S
A1
b
HD
D
E
0.10(0.004) M
°12.0
θ
Symbol Dimensions in inches Dimensions in mm
A 0.047 Max. 1.20 Max.
A1 0.004±0.002 0.10±0.05
A2 0.039±0.002 1.00±0.05
b 0.008±0.001 0.20±0.03
c 0.006±0.001 0.15±0.02
D 0.724±0.004 18.40±0.10
E 0.315±0.004 8.00±0.10
e 0.020 TYP. 0.50 TYP.
HD 0.787±0.007 20.00±0.20
L 0.020±0.004 0.50±0.10
LE 0.031 TYP. 0.80 TYP.
S 0.0167 TYP. 0.425 TYP.
Y 0.004 Max. 0.10 Max.
θ 0° ~ 6° 0° ~ 6°
Notes:
1. The maximum value of dimension D includes end flash.
2. Dimension E does not include resin fins.
3. Dimension e1 is for PC Board surface mount pad pitch design
reference only.
4. Dimension S includes end flash.

LP62S1024B-T Series
PRELIMINARY (October, 2002, Version 0.1) 16 AMIC Technology, Corp.
Package Information
TSSOP 32L TYPE I (8 X 13.4mm) Outline Dimensions unit: inches/mm
e
Detail "A"
D
0.10MM
Detail "A"
S
b
D1
E
D
LE
L
GAUGE PLANE
A
A2
c
0.25
BSC
Detail "A"
A1
SEATING PLANE
°12.0
θ
Symbol Dimensions in inches Dimensions in mm
A 0.049 Max. 1.25 Max.
A1 0.002 Min. 0.05 Min.
A2 0.039±0.002 1.00±0.05
b 0.008±0.001 0.20±0.03
c 0.006±0.0003 0.15±0.008
E 0.315±0.004 8.00±0.10
e 0.020 TYP. 0.50 TYP.
D 0.528±0.008 13.40±0.20
D1 0.465±0.004 11.80±0.10
L 0.02±0.008 0.50±0.20
LE 0.0266 Min. 0.675 Min.
S 0.0109 TYP. 0.278 TYP.
y 0.004 Max. 0.10 Max.
θ 0° ~ 6° 0° ~ 6°
Notes:
1. The maximum value of dimension D includes end flash.
2. Dimension E does not include resin fins.
3. Dimension e1 is for PC Board surface mount pad pitch design
reference only.
4. Dimension S includes end flash.

LP62S1024B-T Series
PRELIMINARY (October, 2002, Version 0.1) 17 AMIC Technology, Corp.
Package Information
36LD CSP (6 x 8 mm) Outline Dimensions unit: mm
A1
A2
A
B
C
D
E
F
G
H
TOP VIEW
Ball#A1 CORNER
SIDE VIEW
C
SEATING PLANE
// 0.25 C
A
(0.36)
A
B
C
D
E
F
G
H
1 2 3 4 5 6
123456
C
0.10 C
S
0.25SA B
b (36X)
BOTTOM VIEW
Ball*A1 CORNER
E
E
1
e
B e
D1
D
A
0.20(4X)
0.10 C
Dimensions in mm
Symbol
MIN.
NOM. MAX.
A 1.00 1.10 1.20
A1 0.16 0.21 0.26
A2 0.48 0.53 0.58
D 5.80 6.00 6.20
E 7.80 8.00 8.20
D1 --- 3.75 ---
E1 --- 5.25 ---
e --- 0.75 ---
b 0.25 0.30 0.35
Note:
1. THE BALL DIAMETER, BALL PITCH, STAND-OFF & PACKAGE THICKNESS
ARE DIFFERENT FROM JEDEC SPEC MO192 (LOW PROFILE BGA FAMILY).
2. PRIMARY DATUM C AND SEATING PLANE ARE DEFINED BY THE SPHERICAL
CROWNS OF THE SOLDER BALLS.
3. DIMENSION b IS MEASURED AT THE MAXIMUM.
4. THEERE SHALL BE A MINIMUM CLEARANCE OF 0.25mm BETWEEN THE EDGE OF
THE SOLDER BALL AND THE BODY EDGE.