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A62L256 Series
Preliminary
Document Title 32K X 8 BIT LOW VOLTAGE CMOS SRAM Revision History
Rev. No.
1.0 1.1 1.2 1.3 1.4
32K X 8 BIT LOW VOLTAGE CMOS SRAM
History
Initial issue Modify 28-pin DIP, SOP and TSOP packages outline dimensions. Modify 28-pin SOP and TSOP packages outline drawings and dimensions Add -LLU type Change operating voltage Vccmax from 3.3V to 3.6V Add Product Family in page 1 Delete ICC item Add ICC2(typ.) ICCDR(typ.) Change ISB1(typ.) ICCDR(max.) Change ordering information from ICC1 to ICC2
Issue Date
September 01, 1997 January 20, 1998 June 17, 1998 April 11, 2001 November 30, 2001
Remark
PRELIMINARY
(November, 2001, Version 1.4)
AMIC Technology, Inc.
A62L256 Series
Preliminary
Features
n External Operating Voltage: 2.7V to 3.6V n Access times: 55ns (max.): for VCC = 3.0V to 3.6V 70ns (max.): for VCC = 2.7V to 3.6V n Current: Operating (ICC1): -55 series 18mA (typ.) -70 series 12mA (typ.) Standby (ISB1): 0.05A (typ.) n Extended operating temperature range: -40 C to +85 C for -LLU series n Full static operation, no clock or refreshing required n All inputs and outputs are directly TTL-compatible n Common I/O using three-state output n Data retention voltage: 2.0V (min.) n Available in 28-pin DIP, SOP and TSOP (forward and reverse type) packages
32K X 8 BIT LOW VOLTAGE CMOS SRAM
General Description
The A62L256 is a low operating current 262,144-bit static random access memory organized as 32,768 words by 8 bits and operates on a low power voltage: 2.7V to 3.6V. 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.
Product Family
Product Family Operating Temperature VCC Range Speed Power Dissipation Data Retention Standby Operating (ICCDR, Typ.) (ISB1, Typ.) (ICC2, Typ.) 0.02A 0.05A 1mA Package Type 28L DIP 28L SOP 28L TSOP
A62L256
-40C ~ +85C
2.7V~3.6V
55ns / 70ns
1. Typical values are measured at VCC = 3.0V, TA = 25C and not 100% tested. 2. Data retention current VCC = 2.0V.
Pin Configurations
n DIP
A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 I/O0 I/O1 I/O2 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 VCC WE A13 A8 A9 A11 OE A10 CE I/O7 I/O6 I/O5 I/O4 I/O3
n SOP
A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 I/O0 I/O1 I/O2 GND 1 2 3 4 5 28 27 26 25 24 VCC WE A13 A8 A9 A11 OE A10 CE I/O7 I/O6 I/O5 I/O4 I/O3
n TSOP
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
~ ~
6 7 8 9 10 11 12 13 14
23 22 21 20 19 18 17 16 15
A62L256V
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AMIC Technology, Inc.
~ ~
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
~~ ~~
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
A62L256
A62L256M
A62L256R
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
A62L256 Series
Block Diagram
A5
VCC GND ROW 512 X 512 MEMORY ARRAY
A9 A11 A14
DECODER
I/O0 COLUMN I/O INPUT DATA CIRCUIT COLUMN DECODER I/O7
A0
A4 A10
CE OE WE
CONTORL CIRCUIT
Pin Descriptions - DIP/SOP
Pin No. 1-10, 21, 23-26 11-13, 15-19 14 20 22 27 28 Symbol A0 - A14 I/O0 - I/O7 GND CE OE WE VCC Description Address Input Data Input/Output Ground Chip Enable Output Enable Write Enable Power Supply
Pin Description-TSOP
Pin No. 1 2-5, 8-17, 28 7 6 18-20, 22-26 21 27 Symbol OE A0 - A14 VCC WE I/O0 - I/O7 GND CE Description Output Enable Address Input Power Supply Write Enable Data Input/Output Ground Chip Enable
PRELIMINARY
(November, 2001, Version 1.4)
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AMIC Technology, Inc.
A62L256 Series
Recommended DC Operating Conditions
(TA = 0C to + 70C or -40C to +85C) Symbol VCC GND VIH VIL Parameter Supply Voltage Ground Input High Voltage Input Low Voltage Min. 2.7 0 VCC * 0.7 -0.3 Typ. 3.0 0 0 Max. 3.6 0 VCC + 0.3 +0.3 Unit V V V V
Absolute Maximum Ratings*
VCC to GND . . . . . . . . . . . . . . . . . . . . . -0.5V to +3.6V IN, IN/OUT Volt to GND . . . . . . . . . -0.5V to VCC + 0.5V Operating Temperature, Topr . . . . . . . . . . 0C to +70C Storage Temperature, Tstg . . . . . . . . . -55C to +125C Power Dissipation, PT . . . . . . . . . . . . . . . . . . . . . 0.7W Soldering Temp. & Time . . . . . . . . . . . . . 260C, 10 sec
*Comments
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 = 0C to + 70C or -40 C to +85 C, VCC = 2.7V to 3.6V, GND = 0V)
Symbol Parameter A62L256-55LL/55LLU Min. ILI Input Leakage Current Output Leakage Current Dynamic Operating Current Typ. Max. 1 A62L256-70LL/70LLU Min. Typ. Max. 1 A VIN = GND to VCC Unit Conditions
ILO
-
-
1
-
-
1
A
CE = VIH or WE = VIL VI/O = GND to VCC Min. Cycle, Duty = 100% CE = VIL, II/O = 0mA CE = VIL, VIH = VCC VIL = 0V, f = 1 MHz II/O = 0 mA
ICC1
-
*18
25
-
**12
20
mA
ICC2
Dynamic Operating Current
-
1
3
-
1
3
mA
Typical values are measured at VCC = 3.0V, TA = 25C and not 100% tested. * Testing condition : TA = 25C, VCC = 3.0V, Cycle Time = 55 ns ** Testing condition : TA = 25C, VCC = 3.0V, Cycle Time = 70 ns
PRELIMINARY
(November, 2001, Version 1.4)
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AMIC Technology, Inc.
A62L256 Series
DC Electrical Characteristics (continued)
Symbol Parameter A62L256-55LL/70LL Min. ISB Supply Current Standby Power ISB1 VOL Output Low Voltage Output High Voltage 0.05 2 0.3 0.05 5 0.3 A V Typ. Max. 50 A62L256-55LLU/70LLU Min. Typ. Max. 50 A CE = VIH CE VCC - 0.2V VIN 0V IOL = 2.1mA Unit Conditions
VOH
VCC - 0.3
-
-
VCC - 0.3
-
-
V
IOH = -1.0mA
Typical values are measured at VCC = 3.0V, TA = 25C and not 100% tested.
Truth Table
Mode Standby Output Disable Read Write Note: X: H or L CE H L L L OE X H L X WE X H H L I/O Operation High Z High Z DOUT DIN Supply Current ISB, ISB1 ICC, ICC1, ICC2 ICC, ICC1, ICC2 ICC, ICC1, ICC2
Capacitance (TA = 25C, f = 1.0 MHz)
Symbol CIN* CI/O* Parameter Input Capacitance Input/Output Capacitance Min. Max. 6 8 Unit pF pF Conditions VIN = 0V VI/O = 0V
These parameters are sampled and not 100% tested.
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AMIC Technology, Inc.
A62L256 Series
AC Characteristics (TA = 0C to +70C or -40 C to +85 C)
A62L256-55LL/LLU Symbol Parameter (VCC = 3.0V to 3.6V) Min. Read Cycle tRC tAA tACE tOE tCLZ tOLZ tCHZ tOHZ tOH Write Cycle tWC tCW tAS tAW tWP tWR tWHZ tDW tDH tOW Notes: Write Cycle Time Chip Enable to End of Write Address Set up Time Address Valid to End of Write Write Pulse Width Write Recovery Time Write to Output in High Z Data to Write Time Overlap Data Hold from Write Time Output Active from End of Write 55 50 0 50 40 0 25 0 5 25 70 60 0 60 50 0 30 0 5 25 ns ns ns ns ns ns ns ns ns ns Read Cycle Time Address Access Time Chip Enable Access Time Output Enable to Output Valid Chip Enable to Output in Low Z Output Enable to Output in Low Z Chip Disable to Output in High Z Output Disable to Output in High Z Output Hold from Address Change 55 10 5 5 55 55 30 20 20 70 10 5 10 70 70 35 25 25 ns ns ns ns ns ns ns ns ns Max. A62L256-70LL/LLU (VCC = 2.7V to 3.6V) Min. Max. Unit
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.
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AMIC Technology, Inc.
A62L256 Series
Timing Waveforms
Read Cycle 1
(1)
tRC Address
tAA
OE
tOE tOLZ5 CE
tOH
tACE tCLZ5 DOUT
tOHZ5 tCHZ5
Read Cycle 2
(1, 2, 4)
tRC Address
tAA tOH tOH
DOUT
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(November, 2001, Version 1.4)
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AMIC Technology, Inc.
A62L256 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.
(6)
Write Cycle 1 (Write Enable Controlled)
tWC Address tAW tCW5 CE (4) tWR 3
tAS1
tWP 2
WE
tDW
tDH
DIN tWHZ 7 tOW 7 DOUT
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(November, 2001, Version 1.4)
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AMIC Technology, Inc.
A62L256 Series
Timing Waveforms (continued)
Write Cycle 2 (Chip Enable Controlled)
(6)
tWC Address tAW tCW5 CE tAS1 (4) tWR 3
tWP 2 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 form 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
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AMIC Technology, Inc.
A62L256 Series
AC Test Conditions
Input Pulse Levels Input Rise And Fall Time Input and Output Timing Reference Levels Output Load 0V, VCC 5 ns VCC/2 See Figure 1
CL 30pF
* Including scope and jig.
Figure 1. Output Load
Data Retention Characteristics (TA = 0C to 70C or -40 C to +85 C)
Symbol VDR Parameter VCC for Data Retention LL-version LLU-version tCDR tR Chip Disable to Data Retention Time Operation Recovery Time Min. 2.0 0 tRC Typ. 0.02 0.02 Max. 3.6 0.5 A 2 ns ns Unit V Conditions CE VCC - 0.2V VCC = 2V, CE VCC - 0.2V VIN 0V
ICCDR
Data Retention Current
See Retention Waveform
Typical values are measured at TA = 25C.
Low VCC Data Retention Waveform
DATA RETENTION MODE VCC 3.0V tCDR 3.0V tR
VCC 2.0V
VIH CE CE VCC - 0.2V
VIH
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(November, 2001, Version 1.4)
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AMIC Technology, Inc.
A62L256 Series
Ordering Information
Part No. A62L256-55LL A62L256M-55LL A62L256V-55LL A62L256R-55LL A62L256-70LL A62L256M-70LL A62L256V-70LL A62L256R-70LL A62L256-55LLU A62L256M-55LLU A62L256V-55LLU A62L256R-55LLU A62L256-70LLU A62L256M-70LLU A62L256V-70LLU A62L256R-70LLU 70 55 70 55 Access Time (ns) Operating Current (ICC2) Max. (mA) 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 Standby Current (ISB1) Max. (A) 2 2 2 2 2 2 2 2 5 5 5 5 5 5 5 5 Package 28L DIP 28L SOP 28L TSOP (Forward) 28L TSOP (Reverse) 28L DIP 28L SOP 28L TSOP (Forward) 28L TSOP (Reverse) 28L DIP 28L SOP 28L TSOP (Forward) 28L TSOP (Reverse) 28L DIP 28L SOP 28L TSOP (Forward) 28L TSOP (Reverse)
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AMIC Technology, Inc.
A62L256 Series
Package Information P-DIP 28L Outline Dimensions
unit: inches/mm
D 28 15
E1
1 S
14 E C
A2
A
A1
Base Plane
Seating Plane B B1 e1 eA
L
Dimensions in inches Symbol A A1 A2 B B1 C D E E1 e1 L eA S Min 0.010 0.150 0.016 0.058 0.008 0.590 0.540 0.090 0.120 0 0.630 Nom 0.155 0.018 0.060 0.010 1.460 0.600 0.545 0.100 0.130 0.650 Max 0.210 0.160 0.022 0.064 0.014 1.470 0.610 0.550 0.110 0.140 15 0.670 0.090
Dimensions in mm Min 0.25 3.81 0.41 1.47 0.20 14.99 13.72 2.29 3.05 0 16.00 Nom 3.94 0.46 1.52 0.25 37.08 15.24 13.84 2.54 3.30 16.51 Max 5.33 4.06 0.56 1.63 0.36 37.34 15.49 13.97 2.79 3.56 15 17.02 2.29
Notes: 1. The maximum value of dimension D includes end flash. 2. Dimension E1 does not include resin fins. 3. Dimension S includes end flash.
PRELIMINARY
(November, 2001, Version 1.4)
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AMIC Technology, Inc.
A62L256 Series
Package Information SOP (W.B.) 28L Outline Dimensions
28 15
unit: inches/mm
H
E
L
1
B
14
Detail F
D c A2 S Seating Plane y D A1
y
A
e
L1 See Detail F
Dimensions in inches Symbol A A1 A2 B C D E e H L L1 S y Min 0.004 0.093 0.014 0.008 0.326 0.044 0.453 0.028 0.059 0 Nom 0.098 0.016 0.010 0.713 0.331 0.050 0.465 0.036 0.067 Max 0.112 0.103 0.020 0.012 0.728 0.336 0.056 0.477 0.044 0.075 0.047 0.004 8
Dimensions in mm Min 0.10 2.36 0.36 0.20 8.28 1.12 11.51 0.71 1.50 0 Nom 2.49 0.41 0.25 18.11 8.41 1.27 11.81 0.91 1.70 Max 2.85 2.62 0.51 0.30 18.49 8.53 1.42 12.12 1.12 1.91 1.19 0.10 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.
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A62L256 Series
Package Information TSOP 28L TYPE I (8 X 13.4mm) Outline Dimensions
unit: inches/mm
D1 1 28 A2
Detail "A"
E
A1
c
L
14 D
15
y
D
e
Detail "A"
S
b
Dimensions in inches Symbol A A1 A2 b c E L D D1 e S y 0 Min 0.002 0.037 0.007 0.005 0.311 0.012 0.520 0.461 Nom 0.039 0.009 0.315 0.020 0.528 0.465 0.022 BSC 0.017 TYP 0.004 5 Max 0.049 0.041 0.011 0.008 0.319 0.028 0.536 0.469
Dimensions in mm Min 0.05 0.95 0.17 0.12 7.90 0.30 13.20 11.70 Nom 1.00 0.22 8.00 0.50 13.40 11.80 0.55 BSC 0.425 TYP 0 0.10 5 Max 1.25 1.05 0.27 0.21 8.10 0.70 13.60 11.90
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.
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(November, 2001, Version 1.4)
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AMIC Technology, Inc.
A

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