Very Low Power CMOS SRAM
128K X 8 bit
Green package materials are compliant to RoHS
Automotive Grade
BS62LV1027
n
FEATURES
Ÿ
Wide V
CC
operation voltage : 2.4V ~ 5.5V
Ÿ
Very low power consumption :
V
CC
= 3.0V Operation current : 15mA (Max.) at 70ns
2mA (Max.) at 1MHz
Standby current : 0.02uA (Typ.) at 25
O
C
V
CC
= 5.0V Operation current : 39mA (Max.) at 70ns
10mA (Max.) at 1MHz
Standby current : 0.4uA (Typ.) at 25
O
C
Ÿ
High speed access time :
-70
70ns (Max.) at V
CC
:
2.7~5.5V
Ÿ
Automatic power down when chip is deselected
Ÿ
Easy expansion with CE2, CE1 and OE options
Ÿ
Three state outputs and TTL compatible
Ÿ
Fully static operation
Ÿ
Data retention supply voltage as low as 1.5V
n
DESCRIPTION
The BS62LV1027 is a high performance, very low power CMOS
Static Random Access Memory organized as 131,072 by 8 bits and
operates form a wide range of 2.4V to 5.5V supply voltage.
Advanced CMOS technology and circuit techniques provide both
high speed and low power features with typical CMOS standby
current of 0.02uA at 3.0V/25
O
C and maximum access time of 70ns at
2.7V/125
O
C.
Easy memory expansion is provided by an active LOW chip enable
(CE1), an active HIGH chip enable (CE2), and active LOW output
enable (OE) and three-state output drivers.
The BS62LV1027 has an automatic power down feature, reducing
the power consumption significantly when chip is deselected.
The BS62LV1027 is available in DICE form, JEDEC standard 32 pin
450mil Plastic SOP, 600mil Plastic DIP, 8mmx13.4mm STSOP,
8mmx20mm TSOP and 36-ball BGA package.
n
POWER CONSUMPTION
POWER DISSIPATION
PRODUCT
FAMILY
BS62LV1027HA
BS62LV1027PA
BS62LV1027SA
BS62LV1027STA
BS62LV1027TA
Automotive
Grade
-40
O
C to +125
O
C
OPERATING
TEMPERATURE
STANDBY
(I
CCSB1
, Typ.)
(I
CCSB1
, Max.)
Operating
(I
CC
, Max.)
PKG TYPE
V
CC
=5.0V
V
CC
=3.0V
V
CC
=5.0V
V
CC
=3.0V
V
CC
=5.0V
1MHz
f
Max.
V
CC
=3.0V
1MHz
f
Max.
BGA-36-0608
PDIP-32
0.4uA
0.02uA
15uA
8.0uA
10mA
39mA
2mA
15mA
SOP-32
STSOP-32
TSOP-32
n
PIN CONFIGURATIONS
n
BLOCK DIAGRAM
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
OE
A10
CE1
DQ7
DQ6
DQ5
DQ4
DQ3
GND
DQ2
DQ1
DQ0
A0
A1
A2
A3
A6
A7
A12
A14
A16
A15
A13
A8
A9
A11
•
BS62LV1027STA
BS62LV1027TA
1
2
A1
A11
A9
A8
A13
WE
CE2
A15
VCC
NC
A16
A14
A12
A7
A6
A5
A4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Address
Input
Buffer
10
Row
Decoder
1024
Memory Array
1024 x 1024
1024
DQ0
DQ1
DQ2
DQ3
5
A6
6
A8
8
Data
Input
Buffer
8
8
Column I/O
Write Driver
Sense Amp
128
Column Decoder
7
3
CE2
4
A3
NC
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
•
BS62LV1027PA
BS62LV1027SA
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
VCC
A15
CE2
WE
A13
A8
A9
A11
OE
A10
CE1
DQ7
DQ6
DQ5
DQ4
DQ3
A
A0
DQ4
DQ5
DQ6
DQ7
8
Data
Output
Buffer
B
DQ4
A2
WE
A4
A7
DQ0
C
DQ5
NC
A5
DQ1
D
VSS
VCC
E
VCC
VSS
CE2
CE1
WE
OE
V
CC
GND
Control
Address Input Buffer
A5 A10 A4 A3 A2 A1 A0
F
DQ6
NC
NC
DQ2
G
DQ7
OE
CE1
A16
A15
DQ3
H
A9
A10
A11
A12
A13
A14
36-ball BGA top view
Brilliance Semiconductor, Inc.
reserves the right to change products and specifications without notice.
R0201-BS62LV1027A
1
Revision 2.2A
Mar.
2006
BS62LV1027
n
PIN DESCRIPTIONS
Name
A0-A16 Address Input
CE1 Chip Enable 1 Input
CE2 Chip Enable 2 Input
WE Write Enable Input
Function
These 17 address inputs select one of the 131,072 x 8-bit in the RAM
CE1 is active LOW and CE2 is active HIGH. Both chip enables must be active when
data read form or write to the device. If either chip enable is not active, the device is
deselected and is in standby power mode. The DQ pins will be in the high impedance
state when the device is deselected.
The write enable input is active LOW and controls read and write operations. With the
chip selected, when WE is HIGH and OE is LOW, output data will be present on the
DQ pins; when WE is LOW, the data present on the DQ pins will be written into the
selected memory location.
The output enable input is active LOW. If the output enable is active while the chip is
selected and the write enable is inactive, data will be present on the DQ pins and they
will be enabled. The DQ pins will be in the high impendence state when OE is inactive.
There 8 bi-directional ports are used to read data from or write data into the RAM.
OE Output Enable Input
DQ0-DQ7 Data Input/Output
Ports
V
CC
GND
Power Supply
Ground
n
TRUTH TABLE
MODE
Not selected
(Power Down)
Output Disabled
Read
Write
CE1
H
X
L
L
L
CE2
X
L
H
H
H
WE
X
X
H
H
L
OE
X
I/O OPERATION
High Z
V
CC
CURRENT
I
CCSB
, I
CCSB1
I
CC
I
CC
I
CC
X
H
L
X
High Z
D
OUT
D
IN
n
ABSOLUTE MAXIMUM RATINGS
SYMBOL
V
TERM
T
BIAS
T
STG
P
T
I
OUT
(1)
n
OPERATING RANGE
UNITS
V
O
PARAMETER
Terminal Voltage with
Respect to GND
Temperature Under
Bias
Storage Temperature
Power Dissipation
DC Output Current
RATING
-0.5
(2)
to 7.0
-40 to +125
-60 to +150
1.0
20
RANG
Automotive
AMBIENT
TEMPERATURE
-40
O
C to + 125
O
C
V
CC
2.4V ~ 5.5V
C
C
O
n
CAPACITANCE
(1)
(T
A
= 25 C, f = 1.0MHz)
O
W
mA
SYMBOL PAMAMETER CONDITIONS MAX. UNITS
C
IN
C
IO
Input
Capacitance
Input/Output
Capacitance
V
IN
= 0V
V
I/O
= 0V
6
8
pF
pF
1. Stresses greater than those listed under ABSOLUTE
MAXIMUM RATINGS 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 operational sections of this specification is not
implied. Exposure to absolute maximum rating conditions for
extended periods may affect reliability.
2.
–2.0V
in case of AC pulse width less than 30 ns.
R0201-BS62LV1027A
1. This parameter is guaranteed and not 100% tested.
2
Revision 2.2A
Mar.
2006
BS62LV1027
n
DC ELECTRICAL CHARACTERISTICS (T
A
= -40 C to +125 C)
PARAMETER
NAME
V
CC
V
IL
V
IH
I
IL
I
LO
V
OL
V
OH
I
CC
I
CC1
I
CCSB
I
CCSB1
PARAMETER
Power Supply
Input Low Voltage
Input High Voltage
Input Leakage Current
Output Leakage Current
Output Low Voltage
Output High Voltage
Operating Power Supply
Current
Operating Power Supply
Current
Standby Current
–
TTL
Standby Current
–
CMOS
V
CC
= Max, V
IN
= 0V to V
CC
V
CC
= Max, CE1= V
IH
, CE2= V
IL
, or
OE = V
IH
, V
I/O
= 0V to V
CC
V
CC
= Max, I
OL
= 2.0mA
V
CC
= Min, I
OH
= -1.0mA
CE1 = V
IL
, CE2 = V
IH
,
I
DQ
= 0mA, f = f
Max(4)
CE1 = V
IL
, CE2 = V
IH
,
I
DQ
= 0mA, f = 1MHz
CE1 = V
IH
, or CE2 = V
IL
,
I
DQ
= 0mA
CE1≧V
CC
-0.2V or CE2≦0.2V,
V
CC
=3.0V
V
CC
=5.0V
V
CC
=3.0V
V
CC
=5.0V
V
CC
=3.0V
V
CC
=5.0V
V
CC
=3.0V
V
CC
=5.0V
V
CC
=3.0V
V
CC
=5.0V
V
CC
=3.0V
V
CC
=5.0V
O
O
TEST CONDITIONS
MIN.
2.4
-0.5
(2)
2.2
--
--
--
2.4
--
--
TYP.
(1)
--
--
--
--
--
--
--
--
--
MAX.
5.5
0.8
V
CC
+0.3
(3)
1
1
0.4
--
15
39
2
10
UNITS
V
V
V
UA
UA
V
V
mA
MA
mA
uA
--
--
--
--
--
--
0.02
0.4
0.5
1.0
8.0
15
V
IN
≧V
CC
-0.2V or V
IN
≦0.2V
O
1. Typical characteristics are at T
A
=25 C and not 100% tested.
2. Undershoot: -1.0V in case of pulse width less than 20 ns.
3. Overshoot: V
CC
+1.0V in case of pulse width less than 20 ns.
4. f
Max.
=1/t
RC.
n
DATA RETENTION CHARACTERISTICS (T
A
= -40 C to +125 C)
SYMBOL
V
DR
I
CCDR
t
CDR
t
R
PARAMETER
V
CC
for Data Retention
Data Retention Current
Chip Deselect to Data
Retention Time
Operation Recovery Time
O
O
TEST CONDITIONS
CE1≧V
CC
-0.2V or CE2≦0.2V,
V
IN
≧V
CC
-0.2V or V
IN
≦0.2V
CE1≧V
CC
-0.2V or CE2≦0.2V,
V
IN
≧V
CC
-0.2V or V
IN
≦0.2V
MIN.
1.5
--
0
TYP.
(1)
--
0.02
--
--
MAX.
--
5.0
--
--
UNITS
V
uA
ns
ns
See Retention Waveform
t
RC (2)
1. V
CC
=1.5V, T
A
=25
O
C and not 100% tested.
2. t
RC
= Read Cycle Time.
n
LOW V
CC
DATA RETENTION WAVEFORM (1) (CE1 Controlled)
Data Retention Mode
V
CC
V
IH
V
CC
V
DR
≧1.5V
V
CC
t
CDR
CE1≧V
CC
- 0.2V
t
R
V
IH
CE1
R0201-BS62LV1027A
3
Revision 2.2A
Mar.
2006
BS62LV1027
n
LOW V
CC
DATA RETENTION WAVEFORM (2) (CE2 Controlled)
Data Retention Mode
V
CC
V
CC
V
DR
≧1.5V
V
CC
t
CDR
t
R
CE2≦0.2V
CE2
V
IL
V
IL
n
AC TEST CONDITIONS
(Test Load and Input/Output Reference)
n
KEY TO SWITCHING WAVEFORMS
WAVEFORM
INPUTS
MUST BE
STEADY
MAY CHANGE
FROM
“H”
TO
“L”
MAY CHANGE
FROM
“L”
TO
“H”
DON’T CARE
ANY CHANGE
PERMITTED
DOES NOT
APPLY
OUTPUTS
MUST BE
STEADY
WILL BE CHANGE
FROM
“H”
TO
“L”
WILL BE CHANGE
FROM
“L”
TO
“H”
CHANGE :
STATE UNKNOW
CENTER LINE IS
HIGH INPEDANCE
“OFF”
STATE
Input Pulse Levels
Input Rise and Fall Times
Input and Output Timing
Reference Level
Output Load
t
CLZ
, t
OLZ
, t
CHZ
, t
OHZ
, t
WHZ
Others
Vcc / 0V
1V/ns
0.5Vcc
C
L
= 5pF+1TTL
C
L
= 30pF+1TTL
ALL INPUT PULSES
1 TTL
Output
C
L(1)
V
CC
GND
10%
90%
90%
10%
→ ←
Rise Time :
1V/ns
→ ←
Fall Time :
1V/ns
1. Including jig and scope capacitance.
n
AC ELECTRICAL CHARACTERISTICS (T
A
= -40 C to +125 C)
READ CYCLE
JEDEC
PARAMETER
NAME
PARANETER
NAME
CYCLE TIME : 70ns
(V
CC
= 2.7~5.5V)
MIN.
TYP.
MAX.
70
--
(CE1)
(CE2)
--
--
--
(CE1)
(CE2)
10
10
5
(CE1)
(CE2)
--
--
--
10
--
--
--
--
--
--
--
--
--
--
--
--
--
70
70
70
35
--
--
--
35
35
30
--
O
O
DESCRIPTION
Read Cycle Time
Address Access Time
Chip Select Access Time
Chip Select Access Time
Output Enable to Output Valid
Chip Select to Output Low Z
Chip Select to Output Low Z
Output Enable to Output Low Z
Chip Select to Output High Z
Chip Select to Output High Z
Output Enable to Output High Z
Data Hold from Address Change
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
AVAX
t
AVQX
t
E1LQV
t
E2HQV
t
GLQV
t
E1LQX
t
E2HQX
t
GLQX
t
E1HQZ
t
E2LQZ
t
GHQZ
t
AVQX
t
RC
t
AA
t
ACS1
t
ACS2
t
OE
t
CLZ1
t
CLZ2
t
OLZ
t
CHZ1
t
CHZ2
t
OHZ
t
OH
R0201-BS62LV1027A
4
Revision 2.2A
Mar.
2006
BS62LV1027
n
SWITCHING WAVEFORMS (READ CYCLE)
READ CYCLE 1
(1,2,4)
t
RC
ADDRESS
t
OH
D
OUT
(1,3,4)
t
AA
t
OH
READ CYCLE 2
CE1
t
ACS1
CE2
t
CLZ
D
OUT
(5)
t
ACS2
t
CHZ1
, t
CHZ2
(5)
READ CYCLE 3
(1, 4)
t
RC
ADDRESS
t
AA
OE
t
OE
CE1
t
CLZ1
CE2
t
CLZ2
D
OUT
(5)
(5)
t
OH
t
OLZ
t
ACS1
t
OHZ
t
CHZ1
(5)
(1,5)
t
ACS2
t
CHZ2
(2,5)
NOTES:
1. WE is high in read Cycle.
2. Device is continuously selected when CE1 = V
IL
and CE2= V
IH
.
3. Address valid prior to or coincident with CE1 transition low and/or CE2 transition high.
4. OE = V
IL
.
5. Transition is measured
±
500mV from steady state with C
L
= 5pF.
The parameter is guaranteed but not 100% tested.
R0201-BS62LV1027A
5
Revision 2.2A
Mar.
2006
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