AMIC LP62S16256FU-70LLT 256k x 16 bit low voltage cmos sram Datasheet

LP62S16256F-T Series
Preliminary
256K X 16 BIT LOW VOLTAGE CMOS SRAM
Features
n Operating voltage: 2.7V to 3.3V
n Access times: 70 ns (max.)
n Current:
Very low power version: Operating: 40mA (max.)
Standby:
10µA (max.)
n
n
n
n
All inputs and outputs are directly TTL-compatible
Common I/O using three-state output
Data retention voltage: 2.0V (min.)
Available in 44-pin TSOP and 48-ball CSP (6×8mm)
packages
n Full static operation, no clock or refreshing required
General Description
The chip enable input is provided for POWER-DOWN,
device enable. Two byte enable inputs and an output
enable input are included for easy interfacing.
Data retention is guaranteed at a power supply voltage
as low as 2.0V.
The LP62S16256F-T is a low operating current
4,194,304-bit static random access memory organized as
262,144 words by 16 bits and operates on low power
voltage from 2.7V to 3.3V. 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.
Pin Configurations
n TSOP
A4
1
44
A5
A3
2
43
A6
A2
3
42
A7
A1
4
41
OE
A0
5
40
HB
39
LB
38
I/O16
37
I/O15
36
I/O14
35
I/O13
CE
6
I/O1
7
I/O2
8
I/O3
9
I/O4
10
VCC
11
GND
12
I/O5
13
I/O6
14
I/O7
15
I/O8
16
LP62S16256FV-T
PRELIMINARY
n CSP (Chip Size Package)
48-pin Top View
34
GND
33
VCC
32
I/O12
31
I/O11
30
I/O10
29
I/O9
28
NC
27
A8
WE
17
A17
18
A16
19
26
A9
A15
20
25
A10
A14
21
24
A11
A13
22
23
A12
(August, 2001, Version 0.2)
1
1
2
3
4
5
6
A
LB
OE
A0
A1
A2
NC
B
I/O9
HB
A3
A4
CE
I/O1
C
I/O10
I/O11
A5
A6
I/O2
I/O3
D
GND
I/O12
A17
A7
I/O4
VCC
E
VCC
I/O13
NC
A16
I/O5
GND
F
I/O15
I/O14
A14
A15
I/O6
I/O7
G
I/O16
NC
A12
A13
WE
I/O8
H
NC
A8
A9
A10
A11
NC
AMIC Technology, Inc.
LP62S16256F-T Series
Block Diagram
VCC
A0
GND
512 X 8192
DECODER
MEMORY ARRAY
A16
A17
I/O1
I/O9
COLUMN I/O
INPUT
INPUT
DATA
CIRCUIT
DATA
CIRCUIT
I/O16
I/O8
CE
LB
HB
CONTROL
CIRCUIT
OE
WE
Pin Descriptions -- TSOP
Pin No.
Symbol
1 - 5, 18 - 27,
42 - 44
A0 - A17
6
CE
7 - 10, 13 - 16,
29 - 32, 35 - 38
I/O1 - I/O16
17
WE
Write Enable Input
39
LB
Lower Byte Enable Input (I/O1 to I/O8)
40
HB
Higher Byte Enable Input (I/O9 to I/O16)
41
OE
Output Enable Input
11, 33
VCC
Power
12, 34
GND
Ground
28
NC
PRELIMINARY
Description
Address Inputs
Chip Enable Input
Data Inputs/Outputs
No Connection
(August, 2001, Version 0.2)
2
AMIC Technology, Inc.
LP62S16256F-T Series
Pin Description - CSP
Symbol
Symbol
Description
Address Inputs
HB
Higher Byte Enable Input
(I/O9 - I/O16)
Chip Enable
OE
Output Enable
I/O1 - I/O16
Data Input/Output
VCC
Power Supply
WE
Write Enable Input
GND
Ground
LB
Byte Enable Input
(I/O1 - I/O8)
NC
A0 - A17
CE
Description
No Connection
Recommended DC Operating Conditions
(TA = -25°C to + 85°C)
Symbol
Parameter
Min.
Typ.
Max.
Unit
2.7
3
3.3
V
0
0
0
V
VCC
Supply Voltage
GND
Ground
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
-
PRELIMINARY
(August, 2001, Version 0.2)
3
AMIC Technology, Inc.
LP62S16256F-T Series
Absolute Maximum Ratings*
*Comments
VCC to GND ..............................................-0.5V to +4.0V
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
Power Dissipation, PT ...................................................................... 0.7W
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 3.3V, GND = 0V)
Symbol
Parameter
LP62S16256F-70LLT
Unit
Conditions
Min.
Max.
-
1
µA
VIN = GND to VCC
ILI
Input Leakage Current
ILO
Output Leakage Current
-
1
µA
CE = VIH
LB = HB = VIH
VI/O = GND to VCC
Active Power Supply
Current
-
5
mA
CE = VIL,
ICC
LB = VIL or HB = VIL , II/O = 0mA
ICC1
-
40
mA
Min. Cycle, Duty = 100%
CE = VIL , LB = VIL or HB = VIL , II/O = 0mA
Dynamic Operating
Current
CE ≤ 0.2V
LB ≤ 0.2V or HB ≤ 0.2V
II/O = 0 mA
ICC2
-
15
mA
ISB
-
1
mA
CE = VIH or LB = HB = VIH
-
10
µA
CE ≥ VCC - 0.2V or LB = HB ≥ VCC - 0.2V
VIN ≥ VCC - 0.2V or VIN ≤ 0.2V
ISB1
Standby Current
VOL
Output Low Voltage
-
0.4
V
IOL = 2.1 mA
VOH
Output High Voltage
2.2
-
V
IOH = -1.0 mA
PRELIMINARY
(August, 2001, Version 0.2)
4
AMIC Technology, Inc.
LP62S16256F-T Series
Truth Table
I/O1 to I/O8 Mode
I/O9 to I/O16 Mode
VCC Current
CE
OE
WE
LB
HB
H
X
X
X
X
Not selected
Not selected
ISB1, ISB
X
X
X
H
H
High - Z
High - Z
ISB1, ISB
L
L
Read
Read
ICC1, ICC2, ICC
L
H
Read
High - Z
ICC1, ICC2, ICC
H
L
High - Z
Read
ICC1, ICC2, ICC
L
L
Write
Write
ICC1, ICC2, ICC
L
H
Write
High - Z
ICC1, ICC2, ICC
H
L
High - Z
Write
ICC1, ICC2, ICC
L
L
L
X
H
L
L
H
H
L
X
High - Z
High - Z
ICC1, ICC2, ICC
L
H
H
X
L
High - Z
High - Z
ICC1, ICC2, ICC
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.
PRELIMINARY
(August, 2001, Version 0.2)
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AMIC Technology, Inc.
LP62S16256F-T Series
AC Characteristics (TA = -25°C to +85°C, VCC = 2.7V to 3.3V)
Symbol
LP62S16256F-70LLT
Parameter
Unit
Min.
Max.
70
-
ns
Read Cycle
tRC
Read Cycle Time
tAA
Address Access Time
-
70
ns
tACE
Chip Enable Access Time
-
70
ns
tBE
Byte Enable Access Time
-
70
ns
tOE
Output Enable to Output Valid
-
35
ns
tCLZ
Chip Enable to Output in Low Z
10
-
ns
tBLZ
Byte Enable to Output in Low Z
10
-
ns
tOLZ
Output Enable to Output in Low Z
5
-
ns
tCHZ
Chip Disable to Output in High Z
-
25
ns
tBHZ
Byte Disable to Output in High Z
-
25
ns
tOHZ
Output Disable to Output in High Z
-
25
ns
tOH
Output Hold from Address Change
5
-
ns
tWC
Write Cycle Time
70
-
ns
tCW
Chip Enable to End of Write
60
-
ns
tBW
Byte Enable to End of Write
60
-
ns
tAS
Address Setup Time
0
-
ns
tAW
Address Valid to End of Write
60
-
ns
tWP
Write Pulse Width
50
-
ns
tWR
Write Recovery Time
0
-
ns
tWHZ
Write to Output in High Z
-
25
ns
tDW
Data to Write Time Overlap
30
-
ns
tDH
Data Hold from Write Time
0
-
ns
tOW
Output Active from End of Write
5
-
ns
Write Cycle
Note: tBLZ, tOLZ, tCHZ, tBHZ and 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.
PRELIMINARY
(August, 2001, Version 0.2)
6
AMIC Technology, Inc.
LP62S16256F-T Series
Timing Waveforms
(1, 2, 4)
Read Cycle 1
tRC
Address
tAA
tOH
tOH
DOUT
(1, 2, 3)
Read Cycle 2
tRC
Address
tAA
CE
tACE
tCHZ 5
tCLZ 5
tBE
HB, LB
tBLZ 5
tBHZ 5
OE
tOHZ 5
tOE
tOLZ 5
DOUT
Notes:
1. WE is high for Read Cycle.
2. Device is continuously enabled CE = VIL, HB = VIL and, or LB = VIL.
3. Address valid prior to or coincident with CE and ( HB and, or LB ) transition low.
4. OE = VIL.
5. Transition is measured ±500mV from steady state. This parameter is sampled and not 100% tested.
PRELIMINARY
(August, 2001, Version 0.2)
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AMIC Technology, Inc.
LP62S16256F-T Series
Timing Waveforms (continued)
Write Cycle 1
(Write Enable Controlled)
tWC
Address
tWR3
tAW
tCW
CE
tBW
HB, LB
tAS1
tWP2
WE
tDW
tDH
DATA IN
tWHZ 4
tOW
DATA OUT
PRELIMINARY
(August, 2001, Version 0.2)
8
AMIC Technology, Inc.
LP62S16256F-T Series
Timing Waveforms (continued)
Write Cycle 2
(Chip Enable Controlled)
tWC
Address
tAW
tAS1
tWR3
tCW2
CE
tBW
HB, LB
tWP
WE
tDW
tDH
DATA IN
tWHZ 4
tOW
DATA OUT
PRELIMINARY
(August, 2001, Version 0.2)
9
AMIC Technology, Inc.
LP62S16256F-T Series
Timing Waveforms (continued)
Write Cycle 3
(Byte Enable Controlled)
tWC
Address
tAW
tCW
CE
tAS1
tWR3
tBW2
HB, LB
tWP
WE
tDH
tDW
DATA IN
tWHZ 4
tOW
DATA OUT
Notes: 1. tAS is measured from the address valid to the beginning of Write.
2. A Write occurs during the overlap (tWP, tBW) of a low CE , WE and ( HB and , or LB ).
3. tWR is measured from the earliest of CE or WE or ( HB and , or LB ) going high to the end of the Write cycle.
4. OE level is high or low.
5. Transition is measured ±500mV from steady state. This parameter is sampled and not 100% tested.
PRELIMINARY
(August, 2001, Version 0.2)
10
AMIC Technology, Inc.
LP62S16256F-T Series
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
TTL
TTL
CL
CL
5pF
30pF
* Including scope and jig.
* Including scope and jig.
Figure 1. Output Load
Figure 2. Output Load for tCLZ, tOLZ,
tCHZ, tOHZ, tWHZ, and tOW
Data Retention Characteristics (TA = -25°C to 85°C)
Symbol
VDR
Parameter
VCC for Data Retention
Min.
Max.
Unit
2.0
3.3
V
Conditions
CE ≥ VCC - 0.2V
or LB = HB ≥ VCC - 0.2V
ICCDR
Data Retention Current
-
5*
µA
tCDR
Chip Disable to Data Retention Time
0
-
ns
tRC
-
ns
5
-
ms
tR
Operation Recovery Time
tVR
VCC Rising Time from Data Retention
Voltage to Operating Voltage
* LP62S16256F-70LLT
PRELIMINARY
ICCDR: max.
(August, 2001, Version 0.2)
VCC = 2.0V,
CE ≥ VCC - 0.2V or
LB = HB ≥ VCC - 0.2V
VIN ≥ VCC - 0.2V or VIN ≤ 0.2V
See Retention Waveform
1.5µA at TA = 0°C to + 40°C
11
AMIC Technology, Inc.
LP62S16256F-T Series
Low VCC Data Retention Waveform
DATA RETENTION MODE
2.7V
2.7V
VCC
tCDR
tR
VDR ≥ 2.0V
tVR
VIH
CE
VIH
CE ≥ V DR − 0.2V
Ordering Information
Part No.
LP62S16256FV-70LLT
Access Time (ns)
70
LP62S16256FU-70LLT
PRELIMINARY
(August, 2001, Version 0.2)
Operating Current
Max. (mA)
Standby Current
Max. (µ
µA)
Package
40
10
44L TSOP
40
10
48L CSP
12
AMIC Technology, Inc.
LP62S16256F-T Series
Package Information
TSOP 44L TYPE II Outline Dimensions
unit: inches/mm
HE
0.254
23
E
44
L
L1
1
22
B
e
D
S
Symbol
y
A
L1
L
A1
A2
c
D
Dimension in inch
Min.
Nom.
Max.
A
-
-
A1
0.002
-
A2
0.037
B
0.010
Dimension in mm
Min.
Nom.
Max.
0.047
-
-
1.20
-
0.05
-
-
0.039
0.041
0.95
1.00
1.05
0.014
0.018
0.25
0.35
0.45
c
-
0.006
-
-
0.15
-
D
0.721
0.725
0.729
18.31
18.41
18.51
E
0.396
0.400
0.404
10.06
10.16
10.26
e
-
0.031
-
-
0.80
-
HE
0.455
0.463
0.471
11.56
11.76
11.96
L
0.016
0.020
0.024
0.40
0.50
0.60
L1
-
0.031
-
-
0.80
-
S
-
-
0.036
-
-
0.93
y
-
-
0.004
-
-
0.10
0°
-
0°
-
5°
θ
5°
Notes:
1. Dimension D&E do not include interlead flash.
2. Dimension B does not include dambar protrusion/intrusion.
3. Dimension S includes end flash.
PRELIMINARY
(August, 2001, Version 0.2)
13
AMIC Technology, Inc.
LP62S16256F-T Series
Package Information
48LD CSP ( 6 x 8 mm ) Outline Dimensions
unit: mm
(48TFBGA)
BOTTOM VIEW
TOP VIEW
Ball#A1 CORNER
0.10 S C
0.25 S C A B
Ball*A1 CORNER
b (48X)
6 5 4 3 2 1
1 2 3 4 5 6
A
B
A
C
D
E1
E
e
B
C
D
E
E
F
F
G
G
H
H
B
e
D1
A
0.10 C
A2
SEATING PLANE
A1
(0.36)
C
D
0.20(4X)
Symbol
A
A1
A2
D
E
D1
E1
e
b
A
// 0.25 C
SIDE VIEW
Dimensions in mm
MIN.
NOM.
MAX.
1.04
0.20
0.48
5.90
7.90
------0.30
1.14
0.25
0.53
6.00
8.00
3.75
5.25
0.75
0.35
1.24
0.30
0.58
6.10
8.10
------0.40
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.
THERE SHALL BE A MINIMUM CLEARANCE OF 0.25mm BETWEEN THE EDGE OF
THE SOLDER BALL AND THE BODY EDGE.
4. BALL PAD OPENING OF SUBSTRATE IS Φ 0.3mm (SMD)
SUGGEST TO DESIGN THE PCB LAND SIZE AS Φ 0.3mm (NSMD)
PRELIMINARY
(August, 2001, Version 0.2)
14
AMIC Technology, Inc.
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