STC62WV25616 Datasheet, PDF (1/10 Pages) List of Unclassifed Manufacturers – Very Low Power/Voltage CMOS SRAM 256K X 16 bit

STC
Very Low Power/Voltage CMOS SRAM
256K X 16 bit
STC62WV25616
„ FEATURES
• Wide Vcc operation voltage : 2.4~5.5V
• Very low power consumption :
Vcc = 3.0V C-grade: 26mA (@55ns) operating current
I-grade: 27mA (@55ns) operating current
C-grade: 21mA (@70ns) operating current
I-grade: 22mA (@70ns) operating current
0.45uA (Typ.) CMOS standby current
Vcc = 5.0V C-grade: 63mA (@55ns) operating current
I-grade: 65mA (@55ns) operating current
C-grade: 53mA (@70ns) operating current
I-grade: 55mA (@70ns) operating current
2.0uA (Typ.) CMOS standby current
• High speed access time :
-55
55ns
-70
70ns
• Automatic power down when chip is deselected
• Three state outputs and TTL compatible
• Fully static operation
• Data retention supply voltage as low as 1.5V
• Easy expansion with CE and OE options
• I/O Configuration x8/x16 selectable by LB and UB pin
„ DESCRIPTION
The STC62WV25616 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 2.4V 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
0.45uA at 3.0V/25^oC and maximum access time of 55ns at 3.0V/85^oC.
Easy memory expansion is provided by an active LOW chip enable (CE)
,active LOW output enable(OE) and three-state output drivers.
The STC62WV25616 has an automatic power down feature, reducing the
power consumption significantly when chip is deselected.
The STC62WV25616 is available in DICE form, JEDEC standard 44-pin
TSOP Type II package and 48-ball BGA package.
„ PRODUCT FAMILY
PRODUCT FAMILY
OPERATING
TEMPERATURE
Vcc
RANGE
STC62WV25616DC
STC62WV25616EC
STC62WV25616AC
STC62WV25616DI
STC62WV25616EI
STC62WV25616AI
+0 ^O C to +70^O C
-40 ^OC to +85 ^OC
„ PIN CONFIGURATIONS
A4
1
A3
2
A2
3
A1
4
A0
5
CE
6
DQ0
7
DQ1
8
DQ2
9
DQ3
10
VCC
11
GND
12
DQ4
13
DQ5
14
DQ6
15
DQ7
16
WE
17
A17
18
A16
19
A15
20
A14
21
A13
22
62WV25616EC
62WV25616EI
44
A5
43
A6
42
A7
41
OE
40
UB
39
LB
38
DQ15
37
DQ14
36
DQ13
35
DQ12
34
GND
33
VCC
32
DQ11
31
DQ10
30
DQ9
29
DQ8
28
NC
27
A8
26
A9
25
A10
24
A11
23
A12
2.4V ~ 5.5V
2.4V ~ 5.5V
SPEED
( ns )
55ns :3.0~5.5V
70ns :2.7~5.5V
POWER DISSIPATION
STANDBY
( I CCSB1 , Max )
Operating
( I CC , Max )
Vcc= 3.0V Vcc= 5.0V ^{Vcc =3.0V Vcc =5.0V}
70ns
70ns
55 /70
5uA
30uA 21mA 53mA
55 /70
10uA 60uA 22mA 55mA
„ BLOCK DIAGRAM
PKG TYPE
DICE
TSOP2-44
BGA-48-0608
DICE
TSOP2-44
BGA-48-0608
A4
A3
A2
A1
Address
A0
22
2048
A17
Input
Row
A16
Buffer
A15
Decoder
A14
A13
A12
16
DQ0
.
.
Data
Input
16
Buffer
.
.
.
.
16
.
.
Data
Output
16
DQ15
Buffer
Memory Array
2048 x 2048
2048
Column I/O
Write Driver
Sense Amp
128
Column Decoder
CE
WE
OE
UB
LB
Vcc
Gnd
Control
14
Address Input Buffer
A11 A10 A9 A8 A7 A6 A5
STC International Limited. reserves the right to modify document contents without notice.
R0201-STC62WV25616
1
Revision 2.1
Jan. 2004