Very Low Power/Voltage CMOS SRAM
256K X 16 bit
BSI
BS616LV4015
DESCRIPTION
FEATURES
The BS616LV4015 is a high performance, very low power CMOS Static
Random Access Memory organized as 262,144 words by 16 bits and
operates from a wide range of 4.5V to 5.5V supply voltage.
Advanced CMOS technology and circuit techniques provide both high
speed and low power features with a typical CMOS standby current
of 1.5uA and maximum access time of 55ns in 5V operation.
Easy memory expansion is provided by an active LOW chip
enable(CE) and active LOW output enable(OE) and three-state output
drivers.
• Operation voltage : 4.5 ~ 5.5V
• Low power consumption :
Vcc = 5.0V
C-grade: 45mA (Max.) operating current
I-grade: 50mA (Max.) operating current
1.5uA (Typ.) CMOS standby current
• High speed access time :
-70
-55
70ns (Max.) at Vcc = 5.0V
55ns (Max.) at Vcc = 5.0V
• Automatic power down when chip is deselected
• Three state outputs and TTL compatible
• Fully static operation
The BS616LV4015 has an automatic power down feature, reducing the
power consumption significantly when chip is deselected.
The BS616LV4015 is available in DICE form, JEDEC standard 44-pin
TSOP Type II package and 48-pin BGA package.
• Data retention supply voltage as low as 2V
• Easy expansion with CE and OE options
• I/O Configuration x8/x16 selectable by LB and UB pin
PRODUCT FAMILY
POWER DISSIPATION
SPEED
( ns )
(SICTCASBN1,DMBaxY)
Operating
PRODUCT
FAMILY
OPERATING
Vcc
( ICC, Max )
PKG TYPE
TEMPERATURE
RANGE
Vcc=
Vcc=
5.0V
Vcc=
5.0V
5.0V
BS616LV4015DC
BS616LV4015EC
BS616LV4015BC
BS616LV4015AC
BS616LV4015DI
BS616LV4015EI
BS616LV4015BI
BS616LV4015AI
DICE
TSOP2-44
BGA-48-0810
BGA-48-0608
DICE
+0 O C to +70O
-40O C to +85O
C
C
4.5V ~ 5.5V
4.5V ~ 5.5V
70/55
70/55
15uA
45mA
TSOP2-44
BGA-48-0810
BGA-48-0608
50uA
50mA
BLOCK DIAGRAM
PIN CONFIGURATIONS
1
2
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
A4
A3
A5
A6
3
A2
A7
A4
A3
A2
4
A1
OE
5
A0
UB
6
CE
LB
7
DQ0
DQ1
DQ2
DQ3
VCC
GND
DQ4
DQ5
DQ6
DQ7
WE
DQ15
DQ14
DQ13
DQ12
GND
VCC
DQ11
DQ10
DQ9
DQ8
NC
8
A1
A0
Address
9
22
2048
10
11
12
13
14
15
16
17
18
19
20
21
22
Input
A17
BS616LV4015EC
BS616LV4015EI
Row
Decoder
Memory Array
2048 x 2048
A16
Buffer
A15
A14
A13
A12
A17
A16
A15
A14
A13
A8
A9
A10
A11
A12
2048
Data
16
16
Column I/O
Input
DQ0
Buffer
.
.
.
.
.
.
.
.
Write Driver
Sense Amp
16
128
Data
16
Output
Buffer
Column Decoder
DQ15
14
CE
WE
OE
UB
Control
Address Input Buffer
LB
A11 A10 A9 A8 A7
A6 A5
Vcc
Gnd
Brilliance Semiconductor Inc. reserves the right to modify document contents without notice.
Revision 2.4
April 2002
R0201-BS616LV4015
1