STC62WV2568 STC, STC62WV2568 Datasheet

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STC62WV2568

Manufacturer Part Number
STC62WV2568
Description
Very Low Power/Voltage CMOS SRAM 256K X 8 bit
Manufacturer
STC
Datasheet
DataSheet4U.com
www.DataSheet4U.com
STC
STC62WV2568
• Wide Vcc operation voltage : 2.4V~5.5V
• Very low power consumption :
• High speed access time :
• Automatic power down when chip is deselected
• Three state outputs and TTL compatible
STC62WV2568DC
STC62WV2568TC
STC62WV2568STC
STC62WV2568SC
STC62WV2568DI
STC62WV2568TI
STC62WV2568STI
STC62WV2568SI
STC International Limited
PIN CONFIGURATIONS
PRODUCT FAMILY
FEATURES
VCC
CE2
Vcc = 3.0V
Vcc = 5.0V
-55
-70
A11
A13
A15
A17
A16
A14
A12
WE
A9
A8
A7
A6
A5
A4
PRODUCT
FAMILY
GND
DQ0
DQ1
DQ2
A17
A16
A14
A12
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A7
A6
A5
A4
A3
A2
A1
A0
55ns
70ns
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
STC62WV2568S
STC62WV2568SI
STC62WV2568TC
STC62WV2568STC
STC62WV2568TI
STC62WV2568STI
C-grade : 22mA (@55ns) operating current
C-grade : 17mA (@70ns) operating current
C-grade : 53mA (@55ns) operating current
C-grade : 43mA (@70ns) operating current
0.3uA (Typ.) CMOS standby current
1.0uA (Typ.) CMOS standby current
I- grade : 23mA (@55ns) operating current
I- grade : 18mA (@70ns) operating current
I- grade : 55mA (@55ns) operating current
I- grade : 45mA (@70ns) operating current
-40
TEMPERATURE
+0
OPERATING
O
O
C to +70
C to +85
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
Very Low Power/Voltage CMOS SRAM
256K X 8 bit
VCC
A15
CE2
WE
A13
A8
A9
A11
OE
A10
CE1
DQ7
DQ6
DQ5
DQ4
DQ3
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
O
O
C
C
OE
A10
CE1
DQ7
DQ6
DQ5
DQ4
DQ3
GND
DQ2
DQ1
DQ0
A0
A1
A2
A3
. reserves the right to modify document contents without notice.
2.4V ~ 5.5V
2.4V ~5.5V
RANGE
Vcc
DataSheet4U.com
55ns :3.0~5.5V
70ns :2.7~5.5V
CE2
SPEED
55/70
55/70
( ns )
• Fully static operation
• Data retention supply voltage as low as 1.5V
• Easy expansion with CE2, CE1, and OE options
The STC62WV2568 is a high performance, very low power CMOS
Static Random Access Memory organized as 262,144 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
0.3uA at 3.0V /25
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 STC62WV2568 has an automatic power down feature, reducing the
power consumption significantly when chip is deselected.
The STC62WV2568 is available in DICE form, JEDEC standard 32 pin
450mil Plastic SOP, 8mmx13.4mm STSOP and 8mmx20mm TSOP.
1
DESCRIPTION
BLOCK DIAGRAM
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
CE1
A15
A16
A14
A12
Vdd
Gnd
A13
A17
WE
Vcc=3.0V
OE
OE
A7
A6
A5
A4
3.0uA
5.0uA
( I
STANDBY
CCSB1
Address
Buffer
Input
, Max )
o
POWER DISSIPATION
C and maximum access time of 55ns at 3.0V /85
8
Control
8
Vcc=5.0V
10uA
30uA
20
Output
Data
Buffer
Data
Buffer
Input
Decoder
Row
Vcc=3.0V
17mA
18mA
70ns
Operating
( I
CC
STC62WV2568
8
1024
, Max )
8
Vcc=5.0V
45mA
43mA
A11
70ns
A9
Address Input Buffer
Column Decoder
Memory Array
A8 A3 A2 A1
Write Driver
Sense Amp
1024 x 2048
Column I/O
Revision 1.1
SOP-32
SOP-32
2048
PKG TYPE
256
16
TSOP-32
STSOP-32
Jan.
DICE
DICE
TSOP-32
STSOP-32
A0
A10
o
2004
C.

Related parts for STC62WV2568

STC62WV2568 Summary of contents

Page 1

... HIGH chip enable (CE2), and active LOW output enable (OE) and three-state output drivers. The STC62WV2568 has an automatic power down feature, reducing the power consumption significantly when chip is deselected. The STC62WV2568 is available in DICE form, JEDEC standard 32 pin 450mil Plastic SOP, 8mmx13.4mm STSOP and 8mmx20mm TSOP. SPEED Vcc ...

Page 2

... RANGE -0 Vcc+0.5 Commercial O -40 to +85 C Industrial O -60 to +150 C 1.0 W CAPACITANCE 20 mA SYMBOL This parameter is guaranteed and not 100% tested. 2 STC62WV2568 Function I/O OPERATION Vcc CURRENT High CCSB High OUT AMBIENT TEMPERATURE + ...

Page 3

... Vcc - 0. See Retention Waveform CE1 Controlled ) Data Retention Mode V DR Vcc t CDR ≥ CE1 CE2 Controlled ) Data Retention Mode V DR Vcc t CDR CE2 ≦ 0. STC62WV2568 MIN. TYP. Vcc=3.0V -0.5 -- Vcc=5.0V 2.0 -- Vcc=3.0V 2.2 -- Vcc=5. Vcc=3. Vcc=5.0V Vcc=3.0V 2.4 -- Vcc=5.0V ...

Page 4

... Chip Select to Output Low Z (CE2) Output Enable to Output in Low Z (CE1) Chip Deselect to Output in High Z Chip Deselect to Output in High Z (CE2) Output Disable to Output in High Z Data Hold from Address Change 4 STC62WV2568 KEY TO SWITCHING WAVEFORMS INPUTS OUTPUTS MUST BE MUST BE STEADY STEADY MAY CHANGE WILL BE ...

Page 5

... The parameter is guaranteed but not 100% tested. STC62WV2568 ACS1 t ACS2 (5) t CLZ DataSheet4U.com OLZ t ACS1 (5) t CLZ1 t ACS2 (5) t CLZ2 and CE2 IH. 5 STC62WV2568 CHZ1, CHZ2 t OH (5) t OHZ (1,5) t CHZ1 (2,5) t CHZ2 Revision 1.1 Jan. 2004 ...

Page 6

... Data Hold from Write Time Output Disable to Output in High Z End of Write to Output Active DataSheet4U.com t WC (11 (5) ( (4,10) t OHZ 6 STC62WV2568 CYCLE TIME : 55ns CYCLE TIME : 70ns (Vcc = 3.0~5.5V) (Vcc = 2.7~5.5V) MIN. TYP. MAX. MIN. TYP. MAX ...

Page 7

... The parameter is guaranteed but not 100% tested. 11 measured from the later of CE1 going low or CE2 going high to the end of write. CW DataSheet4U.com STC62WV2568 t WC (11 (5) (5) (11 ( (4,10) t WHZ DataSheet4U.com ). IL 7 STC62WV2568 t WR2 (3) t (7) ( (8,9) DH Revision 1.1 Jan. 2004 ...

Page 8

... STC ORDERING INFORMATION STC62WV2568X X Note: STC (STC International Limited.) assumes no responsibility for the application or use of any product or circuit described herein. STC does not authorize its products for use as critical components in any application in which the failure of the STC product may be expected to result in significant injury or death, including life-support systems and critical medical instruments ...

Page 9

... PACKAGE DIMENSIONS (continued) TSOP - 32 SOP -32 STC62WV2568 DataSheet4U.com b WITH PLATING BASE METAL SECTION A-A 9 STC62WV2568 Revision 1.1 Jan. 2004 ...

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