STC62WV256 Datasheet, PDF (1/10 Pages) List of Unclassifed Manufacturers – VERY LOW POWER/VOLTAGE CMOS SRAM

STC
Very Low Power/Voltage CMOS SRAM
32K X 8 bit
STC62WV256
„ FEATURES
• Wide Vcc operation voltage : 2.4V ~ 5.5V
• Very low power consumption :
Vcc = 3.0V C-grade : 20mA (Max.) operating current
I- grade : 25mA (Max.) operating current
0.01uA (Typ.) CMOS standby current
Vcc = 5.0V C-grade : 35mA (Max.) operating current
I- grade : 40mA (Max.) operating current
0.4uA (Typ.) CMOS standby current
• High speed access time :
-70
70ns (Max.) at Vcc=3.0V
• 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
„ PRODUCT FAMILY
PRODUCT
FAMILY
OPERATING
TEMPERATURE
Vcc
RANGE
STC62WV256SC
STC62WV256TC
STC62WV256PC
STC62WV256JC
STC62WV256DC
STC62WV256SI
STC62WV256TI
STC62WV256PI
STC62WV256JI
STC62WV256DI
0 ^O C to +70 ^O C
-40 ^O C to +85 ^O C
„ PIN CONFIGURATIONS
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
DQ0
DQ1
DQ2
GND
1
28
2
27
3
26
4
25
5
24
62WV256SC
6 _62WV256SI 23
7 62WV256PC 22
8 ^62WV256PI 21
62WV256JC
9 _62WV256JI 20
10
19
11
18
12
17
13
16
14
15
VCC
WE
A13
A8
A9
A11
OE
A10
CE
DQ7
DQ6
DQ5
DQ4
DQ3
2.4V ~ 5.5V
2.4V ~ 5.5V
OE 1
A11 2
A9 3
A8 4
A13 5
WE 6
VCC 7
A14 8
A12 9
A7 10
A6 11
A5 12
A4 13
A3 14
STC62WV256TC
STC62WV256TI
28 A10
27 CE
26 DQ7
25 DQ6
24 DQ5
23 DQ4
22 DQ3
21 GND
20 DQ2
19 DQ1
18 DQ0
17 A0
16 A1
15 A2
„ DESCRIPTION
The STC62WV256 is a high performance , very low power CMOS
Static Random Access Memory organized as 32,768 words by 8 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
0.01uA and maximum access time of 70ns in 3V operation.
Easy memory expansion is provided by active LOW chip enable (CE),
active LOW output enable (OE) and three-state output drivers.
The STC62WV256 has an automatic power down feature, reducing the
power consumption significantly when chip is deselected.
The STC62WV256 is available in the DICE form, JEDEC standard 28pin
330mil Plastic SOP, 300mil Plastic SOJ, 600mil Plastic DIP and 8mm x
13.4mm TSOP (normal type).
SPEED
(ns)
Vcc=
3.0V
70
POWER DISSIPATION
STANDBY
Operating
(ICCSB1, Max)
(ICC, Max)
Vcc=
5.0V
Vcc=
3.0V
Vcc=
5.0V
Vcc=
3.0V
1uA
0.2uA 35mA 20mA
70
2uA
0.4uA 40mA 25mA
„ BLOCK DIAGRAM
PKG
TYPE
SOP-28
TSOP-28
PDIP-28
SOJ-28
DICE
SOP-28
TSOP-28
PDIP-28
SOJ-28
DICE
A5
A6
A7
A12
A14
A13
A8
A9
A11
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
CE
WE
OE
Vdd
Gnd
Address
18
Input
Buffer
Row
512
Decoder
Memory Array
512 x 512
8
8
Control
Data
Input
Buffer
Data
Output
Buffer
512
8
Column I/O
Write Driver
Sense Amp
8
64
Column Decoder
12
Address Input Buffer
A4 A3 A2 A1 A0 A10
STC International Limited. reserves the right to modify document contents without notice.
R0201-STC62WV256
1
Revision 2.3
Jan. 2004