AMIC A625308-L 32k x 8 bit cmos sram Datasheet

A625308 Series
Preliminary
32K X 8 BIT CMOS SRAM
Document Title
32K X 8 BIT CMOS SRAM
Revision History
Rev. No.
History
Issue Date
Remark
0.0
Initial issue
June 30, 1998
Preliminary
0.1
Erase 28-pin DIP package type
May 21, 1999
0.2
Erase 55ns part
December 1, 2000
PRELIMINARY
(December, 2000, Version 0.2)
AMIC Technology, Inc.
A625308 Series
Preliminary
32K X 8 BIT CMOS SRAM
Features
n
n
n
n
n
n External Operating Voltage: 4.5V to 5.5V
n Access times: 70 ns (max.)
n Current:
A625308-L series:
Operating: 70mA (max.)
Standby: 100µA (max.)
A625308-S series:
Operating: 70mA (max.)
Standby: 25µA (max.)
Full static operation, no clock or refreshing required
All inputs and outputs are directly TTL compatible
Common I/O using three-state output
Data retention voltage: 2.0V (min.)
Available in 28-pin SOP and TSOP (forward and
reverse type) packages
General Description
The A625308 is a low operating current 262,144-bit
static random access memory organized as 32,768
words by 8 bits and operates on a single 5V power
supply.
Inputs and three-state outputs are TTL compatible and
allow for direct interfacing with common system bus
structures.
Minimum standby power is drawn by this device when
CE is at a high level, independent of the other input
levels.
Data retention is guaranteed at a power supply voltage
as low as 2.0V.
Pin Configurations
VCC
27
WE
A7
3
26
A13
A6
4
25
A8
A5
5
24
A9
A4
6
23
A11
A3
7
22
OE
A2
8
21
A10
A1
9
20
CE
A0
10
19
I/O7
I/O0
11
18
I/O6
I/O1
12
17
I/O5
I/O2
13
16
I/O4
GND
14
15
I/O3
(December, 2000, Version 0.2)
OE
A11
A9
A8
A13
WE
VCC
A14
A12
A7
A6
A5
A4
A3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A3
A4
A5
A6
A7
A12
A14
VCC
WE
A13
A8
A9
A11
OE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
~
~
28
2
A625308V
~
~
1
A12
~
~
A14
A625308M
PRELIMINARY
n TSOP
A625308R
~
~
n SOP
28
27
26
25
24
23
22
21
20
19
18
17
16
15
A10
CE
I/O7
I/O6
I/O5
I/O4
I/O3
VSS
I/O2
I/O1
I/O0
A0
A1
A2
28
27
26
25
24
23
22
21
20
19
18
17
16
15
A2
A1
A0
I/O0
I/O1
I/O2
VSS
I/O3
I/O4
I/O5
I/O6
I/O7
CE
A10
AMIC Technology, Inc.
A625308 Series
Block Diagram
VCC
A5
GND
A9
ROW
512 X 512
DECODER
MEMORY ARRAY
A11
A14
I/O0
COLUMN I/O
INPUT
DATA
CIRCUIT
COLUMN DECODER
I/O7
A0
CE
A4 A10
CONTORL
OE
CIRCUIT
WE
Pin Descriptions - SOP
Pin Description-TSOP
Pin No.
Symbol
Description
1-10, 21, 23-26
A0 - A14
Address Input
11-13, 15-19
I/O0 - I/O7
Data Inputs/Outputs
14
GND
20
Pin No.
Symbol
1
OE
Output Enable
2-5, 8-17, 28
A0 - A14
Address Input
Ground
7
VCC
Power Supply
CE
Chip Enable
6
WE
Write Enable
22
OE
Output Enable
18-20, 22-26
I/O0 - I/O7
27
WE
Write Enable
21
GND
28
VCC
Power Supply
27
CE
PRELIMINARY
(December, 2000, Version 0.2)
2
Description
Data Inputs/Outputs
Ground
Chip Enable
AMIC Technology, Inc.
A625308 Series
Recommended DC Operating Conditions
(TA = 0°C to + 70°C)
Symbol
Parameter
Min.
Typ.
Max.
Unit
4.5
5.0
5.5
V
0
0
0
V
VCC
Supply Voltage
GND
Ground
VIH
Input High Voltage
2.2
3.5
VCC + 0.3
V
VIL
Input Low Voltage
-0.3
0
+0.8
V
Absolute Maximum Ratings*
*Comments
VCC to GND . . . . . . . . . . . . . . . . . . . . . -0.5V to +7.0V
IN, IN/OUT Volt to GND . . . . . . . . . -0.5V to VCC + 0.5V
Operating Temperature, Topr . . . . . . . . . . 0°C to +70°C
Storage Temperature, Tstg . . . . . . . . . -55°C to +125°C
Power Dissipation, PT . . . . . . . . . . . . . . . . . . . . . 0.7W
Soldering Temp. & Time . . . . . . . . . . . . . 260°C, 10 sec
Stresses above those listed under "Absolute Maximum
Ratings" may cause permanent damage to the 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 and exposure to absolute maximum rating
conditions for extended periods may affect device
reliability.
DC Electrical Characteristics (TA = 0°C to + 70°C, VCC = 5.0V ± 10%, GND = 0V)
Symbol
Parameter
A625308-70L
A625308-70S
Min.
Max.
Min.
Max.
Unit
Conditions
ILI
Input Leakage
Current
-
1
-
1
µA
VIN = GND to VCC
ILO
Output Leakage
Current
-
1
-
1
µA
CE = VIH or OE = VIH or
WE = VIH
VI/O = GND to VCC
ICC
Active Power
Supply Current
-
15
-
15
mA
CE = VIL, II/O = 0mA
ICC1
Dynamic
Operating Current
-
70
-
70
mA
Min. Cycle, Duty = 100%
CE = VIL, II/O = 0mA
ICC2
Dynamic
Operating Current
-
15
-
15
mA
CE = VIL, VIH = VCC
VIL = 0V, f = 1 MHz
II/O = 0 mA
PRELIMINARY
(December, 2000, Version 0.2)
3
AMIC Technology, Inc.
A625308 Series
DC Electrical Characteristics (continued)
Symbol
ISB
A625308-70L
Parameter
A625308-70S
Unit
Conditions
Min.
Max.
Min.
Max.
-
3
-
2
mA
CE = VIH
-
100
-
25
µA
CE ≥ VCC - 0.2V
VIN ≥ 0V
Supply Current
Standby Power
ISB1
VOL
Output Low
Voltage
-
0.4
-
0.4
V
IOL = 2.1mA
VOH
Output High
Voltage
2.4
-
2.4
-
V
IOH = -1.0mA
Truth Table
Mode
I/O Operation
Supply Current
CE
OE
WE
Standby
H
X
X
High Z
ISB, ISB1
Output Disable
L
H
H
High Z
ICC, ICC1, ICC2
Read
L
L
H
DOUT
ICC, ICC1, ICC2
Write
L
X
L
DIN
ICC, ICC1, ICC2
Note: X: H or L
Capacitance (TA = 25°C, f = 1.0 MHz)
Symbol
Parameter
Min.
Max.
Unit
Conditions
CIN*
Input Capacitance
6
pF
VIN = 0V
CI/O*
Input/Output Capacitance
8
pF
VI/O = 0V
* These parameters are sampled and not 100% tested.
PRELIMINARY
(December, 2000, Version 0.2)
4
AMIC Technology, Inc.
A625308 Series
AC Characteristics (TA = 0°C to +70°C, VCC = 5.0V ± 10%)
Symbol
A625308-70L/70S
Parameter
Unit
Min.
Max.
70
-
ns
Read Cycle
tRC
Read Cycle Time
tAA
Address Access Time
-
70
ns
tACE
Chip Enable Access Time
-
70
ns
tOE
Output Enable to Output Valid
-
35
ns
tCLZ
Chip Enable to Output in Low Z
10
-
ns
tOLZ
Output Enable to Output in Low Z
5
-
ns
tCHZ
Chip Disable to Output in High Z
-
25
ns
tOHZ
Output Disable to Output in High Z
-
25
ns
tOH
Output Hold from Address Change
5
-
ns
tWC
Write Cycle Time
70
-
ns
tCW
Chip Enable to End of Write
60
-
ns
tAS
Address Set up Time
0
-
ns
tAW
Address Valid to End of Write
60
-
ns
tWP
Write Pulse Width
50
-
ns
tWR
Write Recovery Time
0
-
ns
tWHZ
Write to Output in High Z
-
30
ns
tDW
Data to Write Time Overlap
30
-
ns
tDH
Data Hold from Write Time
0
-
ns
tOW
Output Active from End of Write
5
-
ns
Write Cycle
Notes:
tCHZ, tOHZ and tWHZ are defined as the time at which the outputs achieve the open circuit condition and are not
referred to output voltage levels.
PRELIMINARY
(December, 2000, Version 0.2)
5
AMIC Technology, Inc.
A625308 Series
Timing Waveforms
Read Cycle 1 (1)
tRC
Address
tAA
OE
tOE
tOH
tOLZ5
CE
tOHZ5
tACE
tCHZ5
tCLZ5
DOUT
Read Cycle 2 (1, 2, 4)
tRC
Address
tAA
tOH
tOH
DOUT
PRELIMINARY
(December, 2000, Version 0.2)
6
AMIC Technology, Inc.
A625308 Series
Timing Waveforms (continued)
Read Cycle 3 (1, 3, 4)
CE
tACE
tCLZ 5
tCHZ 5
DOUT
Notes: 1.
2.
3.
4.
5.
WE is high for Read Cycle.
Device is continuously enabled, CE = VIL.
Address valid prior to or coincident with CE transition low.
OE = VIL.
Transition is measured ±500mV from steady state. This parameter is sampled and not 100% tested.
Write Cycle 1 (6)
(Write Enable Controlled)
tWC
Address
tAW
tWR3
tCW5
(4)
CE
tAS1
tWP2
WE
tDW
tDH
DIN
tWHZ 7
tOW 7
DOUT
PRELIMINARY
(December, 2000, Version 0.2)
7
AMIC Technology, Inc.
A625308 Series
Timing Waveforms (continued)
Write Cycle 2 (6)
(Chip Enable Controlled)
tWC
Address
tWR3
tAW
tCW5
CE
tAS1
(4)
tWP2
WE
tDW
tDH
DIN
tWHZ7
DOUT
Notes: 1.
2.
3.
4.
tAS is measured from the address valid to the beginning of Write.
A Write occurs during the overlap (tWP) of a low CE and a low WE .
tWR is measured from the earliest of CE or WE going high to the end of the Write cycle.
If the CE low transition occurs simultaneously with the WE low transition or after the WE transition, outputs
remain in a high impedance state.
5. tCW is measured from the later of CE going low to the end of Write.
6. OE level is high or low.
7. Transition is measured ±500mV from steady. This parameter is sampled and not 100% tested.
PRELIMINARY
(December, 2000, Version 0.2)
8
AMIC Technology, Inc.
A625308 Series
AC Test Conditions
Input Pulse Levels
0V, 3.0V
Input Rise And Fall Time
5 ns
Input and Output Timing Reference Levels
1.5V
Output Load
See Figure 1,2
+5V
+5V
1800Ω
1800Ω
I/O
I/O
990Ω
CL
CL
990Ω
30pF*
5pF*
* Including scope and jig.
* Including scope and jig.
Figure 1. Output Load
Figure 2. Output Load for tCLZ
tOLZ , tCHZ, tOHZ, tWHZ, and tow
Data Retention Characteristics (TA = 0°C to 70°C)
Symbol
Parameter
VDR
VCC for Data Retention
ICCDR
Data Retention Current
Min.
Max.
Unit
2.0
5.5
V
CE ≥ VCC - 0.2V
µA
VCC = 3.0V,
CE ≥ VCC - 0.2V
VIN ≥ 0V
L Version
50*
-
S Version
tCDR
10**
Chip Disable to Data Retention Time
0
-
ns
Operation Recovery Time
5
-
ms
Conditions
See Retention Waveform
tR
* A625308-70L
** A625308-70S
ICCDR : Max. 20µA at TA = 0°C to +40°C
ICCDR : Max. 3µA at TA = 0°C to +40°C
Low VCC Data Retention Waveform
DATA RETENTION MODE
VCC
4.5V
tCDR
4.5V
tR
VDR ≥ 2.0V
VIH
VIH
CE
CE ≥ VDR - 0.2V
PRELIMINARY
(December, 2000, Version 0.2)
9
AMIC Technology, Inc.
A625308 Series
Ordering Information
Operating Current
Max. (mA)
Standby Current
Max. (µA)
Package
A625308M-70L
70
100
28L SOP
A625308M-70S
70
25
28L SOP
70
100
28L TSOP (Forward)
A625308V-70S
70
25
28L TSOP (Forward)
A625308R-70L
70
100
28L TSOP (Reverse)
A625308R-70S
70
25
28L TSOP (Reverse)
Part No.
Access Time (ns)
A625308V-70L
70
PRELIMINARY
(December, 2000, Version 0.2)
10
AMIC Technology, Inc.
A625308 Series
Package Information
SOP (W.B.) 28L Outline Dimensions
unit: inches/mm
H
15
E
28
θ
L
1
B
Detail F
14
L1
A1
e
S
D
y
A
A2
c
D
Seating Plane
y
See Detail F
Dimensions in inches
Symbol
Min
Nom
Max
Dimensions in mm
Min
Nom
Max
2.85
A
-
-
0.112
-
-
A1
0.004
-
-
0.10
-
-
A2
0.093
0.098
0.103
2.36
2.49
2.62
0.51
B
0.014
0.016
0.020
0.36
0.41
C
0.008
0.010
0.012
0.20
0.25
0.30
D
-
0.713
0.728
-
18.11
18.49
E
0.326
0.331
0.336
8.28
8.41
8.53
e
0.044
0.050
0.056
1.12
1.27
1.42
H
0.453
0.465
0.477
11.51
11.81
12.12
L
0.028
0.036
0.044
0.71
0.91
1.12
L1
0.059
0.067
0.075
1.50
1.70
1.91
S
-
-
0.047
-
-
1.19
y
-
-
0.004
-
-
0.10
θ
0°
-
8°
0°
-
8°
Notes:
1. The maximum value of dimension D includes end flash.
2. Dimension E does not include resin fins.
3. Dimension S includes end flash.
PRELIMINARY
(December, 2000, Version 0.2)
11
AMIC Technology, Inc.
A625308 Series
Package Information
TSOP 28L TYPE I (8 X 13.4mm) Outline Dimensions
unit: inches/mm
D1
Detail "A"
28
A1
E
c
A
A2
1
e
θ
14
L
15
D
D
Detail "A"
y
S
Dimensions in inches
Symbol
Min
Nom
Max
A
-
-
A1
0.002
-
A2
0.037
b
0.007
b
Dimensions in mm
Min
Nom
Max
0.049
-
-
1.25
-
0.05
-
-
0.039
0.041
0.95
1.00
1.05
0.009
0.011
0.17
0.22
0.27
c
0.005
-
0.008
0.12
-
0.21
E
0.311
0.315
0.319
7.90
8.00
8.10
L
0.012
0.020
0.028
0.30
0.50
0.70
D
0.520
0.528
0.536
13.20
13.40
13.60
D1
0.461
0.465
0.469
11.70
11.80
11.90
e
0.022 BSC
S
0.55 BSC
0.017 TYP
0.425 TYP
y
-
-
0.004
-
-
0.10
θ
0°
-
5°
0°
-
5°
Notes:
1. The maximum value of dimension D1 includes end flash.
2. Dimension E does not include resin fins.
3. Dimension S includes end flash.
PRELIMINARY
(December, 2000, Version 0.2)
12
AMIC Technology, Inc.
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