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.