A62S6308A Series
Preliminary
Document Title
64K X 8 BIT LOW VOLTAGE CMOS SRAM
Revision History
Rev. No.
0.0
64K X 8 BIT LOW VOLTAGE CMOS SRAM
History
Initial issue
Issue Date
May 31, 2011
Remark
Preliminary
PRELIMINARY
(May, 2011, Version 0.0)
AMIC Technology, Corp.
A62S6308A Series
Preliminary
Features
Power supply range: 2.7V to 3.6V
Access times:55/70 ns (max.)
Current:
A62S6308A series: Operating: 30mA (max.)
Standby: 5μA (max.)
Extended operating temperature range: 0°C to 70°C
for -S series, -40°C to +85°C for -SU series
Full static operation, no clock or refreshing required
All inputs and outputs are directly TTL-compatible
Common I/O using three-state output
Output enable and two chip enable inputs for easy
application
Data retention voltage: 2V (min.)
Available in 32-pin SOP, TSOP, sTSOP (8 X
13.4mm) forward type packages
All Pb-free (Lead-free) products are RoHS compliant
64K X 8 BIT LOW VOLTAGE CMOS SRAM
General Description
The A62S6308A is a low operating current 524,288-bit
static random access memory organized as 65,536 words
by 8 bits and operates on a low power supply voltage
from 2.7V to 3.6V.
Inputs and three-state outputs are TTL compatible and
allow for direct interfacing with common system bus
structures.
Two chip enable inputs are provided for POWER-DOWN
and a device enable and an output enable input are
included for easy interfacing.
Data retention is guaranteed at a power supply voltage as
low as 2V.
Pin Configurations
SOP
TSOP/(sTSOP)
(forward type)
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
VCC
A15
CE2
WE
A13
A8
A9
A11
OE
A10
CE1
I/O
7
I/O
6
I/O
5
I/O
4
I/O
3
A11
A9
A8
A13
WE
CE2
A15
VCC
NC
NC
A14
A12
A7
A6
A5
A4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
NC
NC
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O
0
I/O
1
I/O
2
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
~
~
A62S6308AV
(A62S6308AX)
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
OE
A10
CE1
I/O
7
I/O
6
I/O
5
I/O
4
I/O
3
GND
I/O
2
I/O
1
I/O
0
A0
A1
A2
A3
~
~
A62S6308AM
PRELIMINARY
(May, 2011, Version 0.0)
1
AMIC Technology, Corp.
A62S6308A Series
Block Diagram
A0
VCC
GND
A13
A14
A15
ROW
DECODER
512 X 1024
MEMORY ARRAY
I/O
0
INPUT DATA
CIRCUIT
SENSE AMPS
I/O
7
CE2
CE1
OE
WE
CONTROL
CIRCUIT
Pin Descriptions - SOP
Pin No.
1,2
3 - 12, 23,
25 - 28, 31
13 - 15,
17 - 21
16
22
Symbol
NC
A0 - A15
Description
No Connection
Address Inputs
Pin Description - TSOP/sTSOP
Pin No.
Symbol
Description
1 - 4, 7,
11 - 20, 31
5
6
8
9, 10
21 - 23,
25 - 29
24
30
32
A0 - A15
WE
CE2
VCC
NC
I/O
0
- I/O
7
GND
CE1
OE
Address Inputs
Write Enable
Chip Enable
Power Supply
No Connection
Data Inputs/Outputs
Ground
Chip Enable
Output Enable
I/O
0
- I/O
7
GND
Data Inputs/Outputs
Ground
CE1
OE
WE
CE2
VCC
Chip Enable
Output Enable
Write Enable
Chip Enable
Power Supply
24
29
30
32
PRELIMINARY
(May, 2011, Version 0.0)
2
AMIC Technology, Corp.
A62S6308A Series
Recommended DC Operating Conditions
(T
A
= 0
°
C to +70
°
C, or -40
°
C to +85
°
C)
Symbol
Parameter
Min.
Typ.
Max.
Unit
VCC
GND
V
IH
V
IL
C
L
TTL
Supply Voltage
Ground
Input High Voltage
Input Low Voltage
Output Load
Output Load
2.7
0
2.2
-0.3
-
-
3.0
0
-
-
-
-
3.6
0
VCC + 0.3
+0.6
30
1
V
V
V
V
pF
-
Absolute Maximum Ratings*
VCC to GND . . . . . . . . . . . . . . . . . . . . . -0.5V to + 4.6V
IN, IN/OUT Volt to GND . . . . . . . . . -0.5V to VCC + 0.5V
Operating Temperature, Topr . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . 0
°
C to +70
°
C, or -40
°
C to +85
°
C
Storage Temperature, Tstg . .. . . . . . . . -55
°
C to + 125
°
C
Power Dissipation, P
T
. . . . . . . . . . . . . . . . . . . . . . 0.7W
*Comments
Stresses above those listed under "Absolute Maximum
Ratings" may cause permanent damage to this device.
These are stress ratings only. Functional operation of this
device at these or any other conditions above those
indicated in the operational sections of this specification is
not implied or intended. Exposure to the absolute
maximum rating conditions for extended periods may
affect device reliability.
DC Electrical Characteristics
Symbol
⎜
I
LI
⎥
(T
A
= 0
°
C to +70
°
C or -40
°
C to +85
°
C, VCC = 2.7V to 3.6V, GND = 0V)
Min.
Max.
Unit
μ
A
Conditions
Parameter
Input Leakage Current
-
1
V
IN
= GND to VCC
CE1 = V
IH
or CE2 = V
IL
or
OE = V
IH
or WE = V
IL
V
I/O
= GND to VCC
CE1 = V
IL
, CE2 = V
IH
I
I/O
= 0mA
Min. Cycle, Duty = 100%
CE1 = V
IL
, CE2 = V
IH
I
I/O
= 0mA
CE1 = V
IL
, CE2 = V
IH
V
IH
= VCC, V
IL
= 0V
f = 1MH
Z
, I
I/O
= 0mA
⎜
I
LO
⎥
Output Leakage Current
-
1
μ
A
I
CC
Active Power Supply Current
-
3
mA
I
CC1
Dynamic Operating Current
I
CC2
-
30
mA
-
3
mA
PRELIMINARY
(May, 2011, Version 0.0)
3
AMIC Technology, Corp.
A62S6308A Series
DC Electrical Characteristics (continued)
Symbol
Parameter
Min.
Max.
Unit
Conditions
I
SB
Standby Power
Supply Current
I
SB1
-
0.5
mA
VCC
≤
3.3V
CE1 = V
IH
or CE2 = V
IL
VCC
≤
3.3V
CE1
≥
VCC - 0.2V or CE2
≤
0.2V
V
IN
≥
0V
I
OL
= 2.1mA
I
OH
= -1.0mA
-
5
μ
A
V
OL
V
OH
Output Low Voltage
Output High Voltage
-
2.2
0.4
-
V
V
Truth Table
Mode
CE1
H
X
CE2
OE
X
X
H
L
X
WE
X
X
H
H
L
I/O Operation
Supply Current
Standby
X
L
H
H
H
High Z
High Z
High Z
D
OUT
D
IN
I
SB
, I
SB1
I
SB
, I
SB1
I
CC,
I
CC1,
I
CC2
I
CC,
I
CC1,
I
CC2
I
CC,
I
CC1,
I
CC2
Output Disable
Read
Write
Note: X = H or L
L
L
L
Capacitance
(T
A
= 25
°
C, f = 1.0MHz)
Symbol
C
IN
*
C
I/O
*
Parameter
Input Capacitance
Input/Output Capacitance
Min.
Max.
6
8
Unit
pF
pF
Conditions
V
IN
= 0V
V
I/O
= 0V
* These parameters are sampled and not 100% tested.
PRELIMINARY
(May, 2011, Version 0.0)
4
AMIC Technology, Corp.
