NanoAmp Solutions, Inc.
670 North McCarthy Blvd. Suite 220, Milpitas, CA 95035
ph: 408-935-7777, FAX: 408-935-7770
www.nanoamp.com
N02L1618C1A
(DOC# 14-02-012 REV B ECN# 01-1274)
1
The specifications of this device are subject to change without notice. For latest documentation see http://www.nanoamp.com.
Advance Information
2Mb Ultra-Low Power Asynchronous CMOS SRAM
128Kx16 bit
Overview
The N02L1618C1A is an integrated memory
device containing a 2 Mbit Static Random Access
Memory organized as 131,072 words by 16 bits.
The device is designed and fabricated using
NanoAmp's advanced CMOS technology to
provide both high-speed performance and ultra-low
power. The base design is the same as
NanoAmp's N02L163WN1A, which is processed to
operate at higher voltages. The device operates
with a single chip enable (CE) control and output
enable (OE) to allow for easy memory expansion.
Byte controls (UB and LB) allow the upper and
lower bytes to be accessed independently. The
N02L1618C1A is optimal for various applications
where low-power is critical such as battery backup
and hand-held devices. The device can operate
over a very wide temperature range of -40
o
C to
+85
o
C and is available in JEDEC standard
packages compatible with other standard 128Kb x
16 SRAMs.
Features
Single Wide Power Supply Range
1.65 to 2.2 Volts
Very low standby current
0.5A at 1.8V (Typical)
Very low operating current
1.4mA at 1.8V and 1s (Typical)
Very low Page Mode operating current
0.5mA at 1.8V and 1s (Typical)
Simple memory control
Single Chip Enable (CE)
Byte control for independent byte operation
Output Enable (OE) for memory expansion
Low voltage data retention
Vcc = 1.2V
Very fast output enable access time
30ns OE access time
Automatic power down to standby mode
TTL compatible three-state output driver
Compact space saving BGA package avail-
able
Product Family
Part Number
Package Type
Operating
Temperature
Power
Supply
(Vcc)
Speed
Standby
Current (I
SB
),
Max
Operating
Current (Icc),
Max
N02L1618C1AB
48 - BGA
-40
o
C to +85
o
C 1.65V - 2.2V
70/85ns @
1.65V
10
A
3 mA @ 1MHz
N02L1618C1AB2 Green 48-BGA
N02L1618C1AT2 Green 44-TSOP2
N02L1618C1AT
44 - TSOP2
Stock No. 23265-A
2
The specifications of this device are subject to change without notice. For latest documentation see http://www.nanoamp.com.
NanoAmp Solutions, Inc.
N02L1618C1A
Advance Information
Pin Configurations
Pin Descriptions
Pin Name
Pin Function
A
0
-A
16
Address Inputs
WE
Write Enable Input
CE
Chip Enable Input
OE
Output Enable Input
LB
Lower Byte Enable Input
UB
Upper Byte Enable Input
I/O
0
-I/O
15
Data Inputs/Outputs
NC
Not Connected
V
CC
Power
V
SS
Ground
PIN
ONE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
A
4
A
3
A
2
A
1
A
0
CE
I/O
0
I/O
1
I/O
2
I/O
3
VCC
VSS
I/O
4
I/O
5
I/O
6
I/O
7
WE
A
16
A
15
A
14
A
13
A
12
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
A
5
A
6
A
7
OE
UB
LB
I/O
15
I/O
14
I/O
13
I/O
12
VSS
VCC
I/O
11
I/O
10
I/O
9
I/O
8
NC
A
8
A
9
A
10
A
11
NC
N02
L
16
18C1
A
T
S
OP
1
2
3
4
5
6
A
LB
OE
A
0
A
1
A
2
NC
B
I/O
8
UB
A
3
A
4
CE
I/O
0
C
I/O
9
I/O
10
A
5
A
6
I/O
1
I/O
2
D
V
SS
I/O
11
NC
A
7
I/O
3
V
CC
E
V
CC
I/O
12
NC
A
16
I/O
4
V
SS
F
I/O
14
I/O
13
A
14
A
15
I/O
5
I/O
6
G
I/O
15
NC
A
12
A
13
WE
I/O
7
H
NC
A
8
A
9
A
10
A
11
NC
48 Pin BGA (top)
6 x 8 mm
Stock No. 23265-A
3
The specifications of this device are subject to change without notice. For latest documentation see http://www.nanoamp.com.
NanoAmp Solutions, Inc.
N02L1618C1A
Advance Information
Functional Block Diagram
Functional Description
CE
WE
OE
UB
LB
I/O
0
- I/O
15
1
1. When UB and LB are in select mode (low), I/O
0
- I/O
15
are affected as shown. When LB only is in the select mode only I/O
0
- I/O
7
are affected as shown. When UB is in the select mode only I/O
8
- I/O
15
are affected as shown.
MODE
POWER
H
X
X
X
X
High Z
Standby
2
2. When the device is in standby mode, control inputs (WE, OE, UB, and LB), address inputs and data input/outputs are internally
isolated from any external influence and disabled from exerting any influence externally.
Standby
L
X
X
H
H
High Z
Standby
2
Standby
L
L
X
3
3. When WE is invoked, the OE input is internally disabled and has no effect on the circuit.
L
1
L
1
Data In
Write
3
Active
L
H
L
L
1
L
1
Data Out
Read
Active
L
H
H
L
1
L
1
High Z
Active
Active
Capacitance
1
1. These parameters are verified in device characterization and are not 100% tested
Item
Symbol
Test Condition
Min
Max
Unit
Input Capacitance
C
IN
V
IN
= 0V, f = 1 MHz, T
A
= 25
o
C
8
pF
I/O Capacitance
C
I/O
V
IN
= 0V, f = 1 MHz, T
A
= 25
o
C
8
pF
I/O
8
- I/O
15
Control
Logic
Page
Decode
Logic
Address
Inputs
A
4
- A
16
Input/
Output
Mux
and
Buffers
I/O
0
- I/O
7
Address
Word
Decode
Logic
Address
Address
Inputs
A
0
- A
3
8K Page
x 16 word
x 16 bit
RAM Array
W
o
rd Mux
CE
WE
OE
UB
LB
Stock No. 23265-A
4
The specifications of this device are subject to change without notice. For latest documentation see http://www.nanoamp.com.
NanoAmp Solutions, Inc.
N02L1618C1A
Advance Information
Absolute Maximum Ratings
1
Item
Symbol
Rating
Unit
Voltage on any pin relative to V
SS
V
IN,OUT
0.3 to V
CC
+0.3
V
Voltage on V
CC
Supply Relative to V
SS
V
CC
0.3 to 3.0
V
Power Dissipation
P
D
500
mW
Storage Temperature
T
STG
40 to 125
o
C
Operating Temperature
T
A
-40 to +85
o
C
Soldering Temperature and Time
T
SOLDER
240
o
C, 10sec(Lead only)
o
C
1. Stresses greater than those listed above may cause 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 operating section of this specification is not
implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
Operating Characteristics (Over Specified Temperature Range)
Item
Symbol
Test Conditions
Min.
Typ
1
1. Typical values are measured at Vcc=Vcc Typ., T
A
=25C and are not 100% tested.
Max
Unit
Supply Voltage
V
CC
1.65
1.8
2.2
V
Data Retention Voltage
V
DR
Chip Disabled
2
1.2
2.2
V
Input High Voltage
V
IH
0.7Vcc
V
CC
+0.3
V
Input Low Voltage
V
IL
0.3
0.3Vcc
V
Output High Voltage
V
OH
I
OH
= 0.2mA
V
CC
0.2
V
Output Low Voltage
V
OL
I
OL
= -0.2mA
0.3
V
Input Leakage Current
I
LI
V
IN
= 0 to V
CC
0.5
A
Output Leakage Current
I
LO
OE = V
IH
or Chip Disabled
0.5
A
Read/Write Operating Supply Current
@ 1
s Cycle Time
2
2. This parameter is specified with the outputs disabled to avoid external loading effects. The user must add current required to drive
output capacitance expected in the actual system.
I
CC1
V
CC
=2.2 V, V
IN
=V
IH
or V
IL
Chip Enabled, I
OUT
= 0
1.4
3.0
mA
Read/Write Operating Supply Current
@ 70 ns Cycle Time
2
I
CC2
V
CC
=2.2 V, V
IN
=V
IH
or V
IL
Chip Enabled, I
OUT
= 0
8.0
17.0
mA
Page Mode Operating Supply Current
@ 70ns Cycle Time
2
(Refer to Power
Savings with Page Mode Operation
diagram)
I
CC3
V
CC
=2.2V, V
IN
=V
IH
or V
IL
Chip Enabled, I
OUT
= 0
2.0
4.0
mA
Read/Write Quiescent Operating Sup-
ply Current
3
3. This device assumes a standby mode if the chip is disabled (CE high). In order to achieve low standby current all inputs must be
within 0.2 volts of either VCC or VSS
I
CC4
V
CC
=2.2V, V
IN
=V
IH
or V
IL
Chip Enabled, I
OUT
= 0,
f = 0
0.1
mA
Maximum Standby Current
3
I
SB1
V
IN
= V
CC
or 0V
Chip Disabled
t
A
= 85
o
C, VCC = 2.2 V
0.5
10.0
A
Maximum Data Retention Current
3
I
DR
V
CC
= 1.2V, V
IN
= V
CC
or 0
Chip Disabled, t
A
= 85
o
C
5.0
A
Stock No. 23265-A
5
The specifications of this device are subject to change without notice. For latest documentation see http://www.nanoamp.com.
NanoAmp Solutions, Inc.
N02L1618C1A
Advance Information
Power Savings with Page Mode Operation (WE = V
IH
)
Note: Page mode operation is a method of addressing the SRAM to save operating current. The internal
organization of the SRAM is optimized to allow this unique operating mode to be used as a valuable power
saving feature.
The only thing that needs to be done is to address the SRAM in a manner that the internal page is left open
and 16-bit words of data are read from the open page. By treating addresses A0-A3 as the least significant
bits and addressing the 16 words within the open page, power is reduced to the page mode value which is
considerably lower than standard operating currents for low power SRAMs.
Page Address (A4 - A16 )
LB, UB
OE
CE
Word Address (A0 - A3)
Open page
Word 1
Word 2
Word 16
...
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