Revision 1.1
Jan. 2004
1
R0201-BS62LV4008
Very Low Power/Voltage CMOS SRAM
512K X 8 bit
• Vcc operation voltage : 2.4V ~ 3.6V
• Very low power consumption :
Vcc = 3.0V C-grade: 29mA (@55ns) operating current
I -grade: 30mA (@55ns) operating current
C-grade: 24mA (@70ns) operating current
I -grade: 25mA (@70ns) operating current
0.45uA (Typ.) CMOS standby current
• High speed access time :
-55 55ns
-70 70ns
• Automatic power down when chip is deselected
• Fully static operation
The BS62LV4008 is a high performance, very low power CMOS
Static Random Access Memory organized as 524,288 words by 8 bits
and operates from a range of 2.4V to 3.6V supply voltage.
Advanced CMOS technology and circuit techniques provide both high
speed and low power features with a typical CMOS standby current of
0.45uA at 3.0V/25
o
C and maximum access time of 55ns at 3.0V/85
o
C.
Easy memory expansion is provided by an active LOW chip enable
(CE) , and active LOW output enable (OE) and three-state output
drivers.
The BS62LV4008 has an automatic power down feature, reducing the
power consumption significantly when chip is deselected.
The BS62LV4008 is available in the JEDEC standard 32L SOP, TSOP
, PDIP, TSOP II and STSOP package.
„ DESCRIPTION„ FEATURES
„ BLOCK DIAGRAM
„ PRODUCT FAMILY
„ PIN CONFIGURATIONS
Brilliance Semiconductor, Inc. reserves the right to modify document contents without notice.
Address
Input
Buffer
Row
Decoder
Memory Array
2048 X 2048
Column I/O
Write Driver
Sense Amp
Column Decoder
Data
Buffer
Output
Address Input Buffer
Data
Buffer
Input
Control
GND
Vdd
OE
WE
CE
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
A13
A17
A15
A18
A16
A14
A12
A7
A6
A5
A4
8
8
8
8
16
256
2048
2048
22
A11 A9 A8 A3 A2 A1 A0 A10
BS62LV4008
BSI
POWER DISSIPATION
SPEED
( ns )
STANDBY
( I CCSB1 , Max )
Operating
( I CC , Max )
PKG
TYPE
BS62LV4008TC TSOP- 32
BS62LV4008STC STSOP-32
BS62LV4008SC SOP -32
BS62LV4008EC TSOP2-32
BS62LV4008PC
+0
O
C to +70
O
C 2.4V ~ 3.6V 55 / 70 5uA 29mA 24mA
PDIP
-32
BS62LV4008TI TSOP-32
BS62LV4008STI STSOP-32
BS62LV4008SI SOP - 32
BS62LV4008EI TSOP2-32
BS62LV4008PI
-
40
O
C to +85
O
C 2.4V ~ 3.6V 55 / 70 10uA 30mA 25mA
PDIP- 32
OE
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
GND
DQ2
DQ1
DQ0
A0
A1
A2
A3
A11
A9
A8
A13
WE
A17
A15
VCC
A18
A16
A14
A12
A7
A6
A5
A4
•
BS62LV4008TC
BS62LV4008STC
BS62LV4008TI
BS62LV4008STI
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A18
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
GND
VCC
A15
A17
WE
A13
A8
A9
A11
OE
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
•
BS62LV4008SC
BS62LV4008SI
BS62LV4008EC
BS62LV4008EI
BS62LV4008PC
BS62LV4008PI
PRODUCT
FAMILY
OPERATING
TEMPERATURE
Vcc
RANGE
55ns :3.0~3.6V
Vcc = 3.0V Vcc =3.0V
• Data retention supply voltage as low as 1.5V
• Easy expansion with CE and OE options
• Three state outputs and TTL compatible
70ns :2.7~3.6V
55ns 70ns
Vcc =3.0V