STC62WV2568 STC, STC62WV2568 Datasheet - Page 3

• Manufacturer Part Number: STC62WV2568
• Description: Very Low Power/Voltage CMOS SRAM 256K X 8 bit
• Manufacturer: STC

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STC62WV2568
1. Typical characteristics are at TA = 25
3. These are absolute values with respect to device ground and all overshoots due to system or tester notice are included.
4. I
1. Vcc = 1.5V, T
2. t
3. I
DATA RETENTION CHARACTERISTICS
LOW V
LOW V
PARAMETER
DC ELECTRICAL CHARACTERISTICS
SYMBOL
Vcc
CE1
Vcc
CE2
ccs
cc
RC
I
CCDR
DR_MAX.
I
V
t
NAME
B1_MAX.
= Read Cycle Time
CCSB1
CDR
t
I
I
DR
R
V
CCSB
V
CC
V
V
I
I
LO
OH
IL
OL
(3)
CC
CC
IH
IL
(5)
STC
(4)
DATA RETENTION WAVEFORM (1)
DATA RETENTION WAVEFORM (2)
is 0.7uA at T
is 3uA / 10uA at Vcc=3V / 5V and T
A
Vcc for Data Retention
Data Retention Current
Chip Deselect to Data
Retention Time
Operation Recovery Time
= + 25
Guaranteed Input Low
Voltage
Guaranteed Input High
Voltage
Input Leakage Current
Output Leakage Current
Output Low Voltage
Output High Voltage
Operating Power Supply
Current
Standby Current-TTL
Standby Current-CMOS
PARAMETER
O
PARAMETER
C
A
=70
(3)
(3)
o
C.
o
C.
V
V
IH
IL
t
t
Vcc
Vcc
CDR
A
CDR
Vcc = Max, V
Vcc = Max, CE1 = V
or OE = V
Vcc = Max, I
Vcc = Min, I
Vcc=Max,CE1=V
I
Vcc = Max, CE1 = V
I
Vcc = Max, CE1≧Vcc-0.2V or
CE2≦0.2V ;V
V
DQ
DQ
=70
CE1 ≧ Vcc - 0.2V or CE2 ≦ 0.2V,
V
CE1 ≧ Vcc - 0.2V or CE2 ≦ 0.2V,
V
See Retention Waveform
IN
≦0.2V
IN
IN
= 0mA, F = Fmax
= 0mA
DataSheet4U.com
o
( TA = -40
≧ Vcc - 0.2V or V
≧ Vcc - 0.2V or V
C.
( TA = -40
( CE1 Controlled )
( CE2 Controlled )
TEST CONDITIONS
IH
, V
OH
TEST CONDITIONS
OL
IN
I/O
IN
2. Fmax = 1/t
= -1.0mA
= 2.0mA
= 0V to Vcc
≧ Vcc - 0.2V or
5. Icc_
Data Retention Mode
Data Retention Mode
= 0V to Vcc
3
o
CE1
CE2 ≦ 0.2V
IL
C to + 85
o
, CE2=V
C to + 85
V
IH
IH
V
(2)
≥
DR
DR
or CE2=V
or CE2=V
MAX.
≥
Vcc - 0.2V
≧ 1.5V
IN
IN
1.5V
IH
≦ 0.2V
≦ 0.2V
is 23mA(@3V) / 55mA(@5V) under 55ns operation.
RC
o
.
C )
o
C )
IL
IL
70ns
70ns
Vcc=3.0V
Vcc=5.0V
Vcc=3.0V
Vcc=5.0V
Vcc=3.0V
Vcc=5.0V
Vcc=3.0V
Vcc=5.0V
Vcc=3.0V
Vcc=5.0V
Vcc=3.0V
Vcc=5.0V
Vcc=3.0V
Vcc=5.0V
MIN.
T
1.5
RC
Vcc
Vcc
--
0
(2)
t
t
R
R
V
V
IH
STC62WV2568
IL
TYP.
-0.5
MIN. TYP.
2.0
2.2
2.4
--
--
--
--
--
--
--
--
--
0.1
--
--
--
(1)
0.3
1.0
--
--
--
--
--
--
--
--
--
--
--
MAX.
1.0
--
--
--
(1)
Revision 1.1
MAX.
V
cc+
0.8
0.4
0.5
1.0
18
45
30
--
1
1
5
0.3
Jan.
UNITS
UNITS
uA
ns
ns
V
mA
mA
uA
uA
uA
V
V
V
V
2004