GS72108ATP/J SOJ, TSOP Commercial Temp Industrial Temp 7, 8, 10, 12 ns 3.3 V VDD Center VDD and VSS 256K x 8 2Mb Asynchronous SRAM Features SOJ 256K x 8-Pin Configuration • Fast access time: 7, 8, 10, 12 ns • CMOS low power operation: 135/115/95/80 mA at minimum cycle time • Single 3.3 V power supply • All inputs and outputs are TTL-compatible • Fully static operation • Industrial Temperature Option: –40° to 85°C • Package line up J: 400 mil, 36-pin SOJ package TP: 400 mil, 44-pin TSOP Type II package GP:Pb-free 400 mil, 44-pin TSOP Type II package • Pb-Free TSOP-II package available A4 1 36 NC A3 2 35 A5 A2 3 34 A6 A1 4 33 A7 A0 5 32 A8 CE 6 31 OE DQ1 7 30 DQ8 DQ2 8 29 DQ7 VDD 9 28 VSS VSS 10 27 VDD DQ3 11 26 DQ6 Description DQ4 12 25 DQ5 The GS72108A is a high speed CMOS Static RAM organized as 262,144 words by 8 bits. Static design eliminates the need for external clocks or timing strobes. The GS operates on a single 3.3 V power supply and all inputs and outputs are TTLcompatible. The GS72108A is available in 400 mil SOJ and 400 mil TSOP Type-II packages. WE 13 24 A9 A17 14 23 A10 A16 15 22 A11 A15 16 21 A12 A14 17 20 NC A13 18 19 NC 36-pin 400 mil SOJ Package J Pin Descriptions Symbol Description A0–A17 Address input DQ1–DQ8 Data input/output CE Chip enable input WE Write enable input OE Output enable input VDD +3.3 V power supply VSS Ground NC No connect Rev: 1.05 10/2004 1/12 Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. © 2001, GSI Technology GS72108ATP/J TSOP-II 256K x 8-Pin Configuration A13 19 20 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 NC NC 21 22 24 23 NC NC A4 A3 A2 A1 A0 CE DQ1 DQ2 VDD VSS DQ3 DQ4 WE A17 A16 A15 A14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 44-pin 400 mil TSOP II NC NC NC A5 A6 A7 A8 OE DQ8 DQ7 VSS VDD DQ6 DQ5 A9 A10 A11 A12 NC NC NC NC Package TP Block Diagram A0 Address Input Buffer Row Decoder Column Decoder A17 CE WE OE Memory Array I/O Buffer Control DQ1 Rev: 1.05 10/2004 DQ8 2/12 Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. © 2001, GSI Technology GS72108ATP/J Truth Table CE OE WE DQ1 to DQ8 VDD Current H X X Not Selected ISB1, ISB2 L L H Read L X L Write L H H High Z IDD Note: X: “H” or “L” Absolute Maximum Ratings Parameter Symbol Rating Unit Supply Voltage VDD –0.5 to +4.6 V Input Voltage VIN –0.5 to VDD +0.5 (≤ 4.6 V max.) V Output Voltage VOUT –0.5 to VDD +0.5 (≤ 4.6 V max.) V Allowable power dissipation PD 0.7 W Storage temperature TSTG –55 to 150 o C Note: Permanent device damage may occur if Absolute Maximum Ratings are exceeded. Functional operation shall be restricted to Recommended Operating Conditions. Exposure to higher than recommended voltages for extended periods of time could affect device reliability. Rev: 1.05 10/2004 3/12 Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. © 2001, GSI Technology GS72108ATP/J Recommended Operating Conditions Parameter Symbol Min Typ Max Unit Supply Voltage for -7/-8/-10/-12 VDD 3.0 3.3 3.6 V Input High Voltage VIH 2.0 — VDD +0.3 V Input Low Voltage VIL –0.3 — 0.8 V Ambient Temperature, Commercial Range TAc 0 — 70 oC Ambient Temperature, Industrial Range TAI –40 — 85 o C Notes: 1. Input overshoot voltage should be less than VDD +2 V and not exceed 20 ns. 2. Input undershoot voltage should be greater than –2 V and not exceed 20 ns. Capacitance Parameter Symbol Test Condition Max Unit Input Capacitance CIN VIN = 0 V 5 pF Output Capacitance COUT VOUT = 0 V 7 pF Notes: 1. Tested at TA = 25°C, f = 1 MHz 2. These parameters are sampled and are not 100% tested. DC I/O Pin Characteristics Parameter Symbol Test Conditions Min Max Input Leakage Current IIL VIN = 0 to VDD – 1 uA 1 uA Output Leakage Current ILO Output High Z VOUT = 0 to VDD –1 uA 1 uA Output High Voltage VOH IOH = –4mA 2.4 — Output Low Voltage VOL ILO = +4mA — 0.4 V Rev: 1.05 10/2004 4/12 Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. © 2001, GSI Technology GS72108ATP/J Power Supply Currents Parameter Operating Supply Current Standby Current Standby Current Symbol Test Conditions 0 to 70°C –40 to 85°C 7 ns 8 ns 10 ns 12 ns 7 ns 8 ns 10 ns 12 ns IDD (max) CE ≤ VIL All other inputs ≥ VIH or ≤ VIL Min. cycle time IOUT = 0 mA 135 mA 115 mA 95 mA 80 mA 140 mA 120 mA 100 mA 85 mA ISB1 (max) CE ≥ VIH All other inputs ≥ VIH or ≤VIL Min. cycle time 25 mA 20 mA 20 mA 15 mA 30 mA 25 mA 25 mA 20 mA ISB2 (max) CE ≥ VDD - 0.2 V All other inputs ≥ VDD – 0.2 V or ≤ 0.2 V 5 mA 10 mA AC Test Conditions Output Load 1 Parameter Conditions Input high level VIH = 2.4 V Input low level VIL = 0.4 V 50Ω Input rise time tr = 1 V/ns VT = 1.4 V Input fall time tf = 1 V/ns Input reference level 1.4 V Output Load 2 Output reference level 1.4 V 3.3 V Output load Fig. 1& 2 DQ Rev: 1.05 10/2004 589Ω DQ Notes: 1. Include scope and jig capacitance. 2. Test conditions as specified with output loading as shown in Fig. 1 unless otherwise noted. 3. Output load 2 for tLZ, tHZ, tOLZ and tOHZ 5/12 Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. 30pF1 5pF1 434Ω © 2001, GSI Technology GS72108ATP/J AC Characteristics Read Cycle Parameter Symbol Read cycle time -7 -8 -10 -12 Unit Min Max Min Max Min Max Min Max tRC 7 — 8 — 10 — 12 — ns Address access time tAA — 7 — 8 — 10 — 12 ns Chip enable access time (CE) tAC — 7 — 8 — 10 — 12 ns Byte enable access time (UB, LB) tAB — 3 — 3.5 — 4 — 5 ns Output enable to output valid (OE) tOE — 3 — 3.5 — 4 — 5 ns Output hold from address change tOH 3 — 3 — 3 — 3 — ns Chip enable to output in low Z (CE) tLZ* 3 — 3 — 3 — 3 — ns Output enable to output in low Z (OE) tOLZ* 0 — 0 — 0 — 0 — ns Byte enable to output in low Z (UB, LB) tBLZ* 0 — 0 — 0 — 0 — ns Chip disable to output in High Z (CE) tHZ* — 3.5 — 4 — 5 — 6 ns Output disable to output in High Z (OE) tOHZ* — 3 — 3.5 — 4 — 5 ns * These parameters are sampled and are not 100% tested. Read Cycle 1: CE = OE = VIL, WE = VIH tRC Address tAA tOH Data Out Rev: 1.05 10/2004 Previous Data Data valid 6/12 Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. © 2001, GSI Technology GS72108ATP/J Read Cycle 2: WE = VIH tRC Address tAA CE tAC tHZ tLZ OE tOE Data Out tOHZ tOLZ DATA VALID High impedance Write Cycle Parameter Symbol Write cycle time -7 -8 -10 -12 Unit Min Max Min Max Min Max Min Max tWC 7 — 8 — 10 — 12 — ns Address valid to end of write tAW 5 — 5.5 — 7 — 8 — ns Chip enable to end of write tCW 5 — 5.5 — 7 — 8 — ns Data set up time tDW 3.5 — 4 — 5 — 6 — ns Data hold time tDH 0 — 0 — 0 — 0 — ns Write pulse width tWP 5 — 5.5 — 7 — 8 — ns Address set up time tAS 0 — 0 — 0 — 0 — ns Write recovery time (WE) tWR 0 — 0 — 0 — 0 — ns Write recovery time (CE) tWR1 0 — 0 — 0 — 0 — ns Output Low Z from end of write tWLZ* 3 — 3 — 3 — 3 — ns Write to output in High Z tWHZ* — 3 — 3.5 — 4 — 5 ns * These parameters are sampled and are not 100% tested. Rev: 1.05 10/2004 7/12 Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. © 2001, GSI Technology GS72108ATP/J Write Cycle 1: WE control tWC Address tAW tWR OE tCW CE tAS tWP WE tDW Data In tDH DATA VALID tWHZ tWLZ Data Out HIGH IMPEDANCE Write Cycle 2: CE control tWC Address tAW tWR1 OE tAS tCW CE tWP WE tDW Data In DATA VALID Data Out Rev: 1.05 10/2004 tDH HIGH IMPEDANCE 8/12 Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. © 2001, GSI Technology GS72108ATP/J 36-Pin SOJ, 400 mil Dimension in inch L D e A A1 A A2 1 GE E HE c y B B1 Detail A Q Dimension in mm Symbol min nom max min nom max A — — 0.146 — — 3.70 A1 0.026 — — 0.66 — — A2 0.105 0.110 0.115 2.67 2.80 2.92 B 0.013 0.017 0.021 0.33 0.43 0.53 B1 0.024 0.028 0.032 0.61 0.71 0.81 c 0.006 0.008 0.012 0.15 0.20 0.30 D 0.920 0.924 0.929 23.37 23.47 23.60 E 0.395 0.400 0.405 10.04 10.16 10.28 e — 0.05 — — 1.27 — HE 0.430 0.435 0.440 10.93 11.05 11.17 GE 0.354 0.366 0.378 9.00 9.30 9.60 L 0.082 — — 2.08 — — y — — 0.004 — — 0.10 Q 0o — 10o 0o — 10o Notes: 1. Dimension D& E do not include interlead flash. 2. Dimension B1 does not include dambar protrusion/intrusion. 3. Controlling dimension: inches Rev: 1.05 10/2004 9/12 Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. © 2001, GSI Technology GS72108ATP/J 44-Pin, 400 mil TSOP-II nom max min nom max A — — 0.047 — — 1.20 A1 0.002 — — 0.05 — — A2 0.037 0.039 0.041 0.95 1.00 1.05 B 0.01 0.014 0.018 0.25 0.35 0.45 c — 0.006 — — 0.15 — D 0.721 0.725 0.729 18.31 18.41 18.51 E 0.396 0.400 0.404 10.06 10.16 10.26 e — 0.031 — — 0.80 — HE 0.455 0.463 0.471 11.56 11.76 11.96 L 0.016 0.020 0.024 0.40 0.50 0.60 L1 — 0.031 — — 0.80 — Q y — — 0.004 — — 0.10 Q 0o — 5o 0o — 5o A HE E min 22 e B L1 A1 A y Detail A Dimension in mm Symbol A2 1 Dimension in inch c 23 L D 44 Notes: 1. Dimension D& E do not include interlead flash. 2. Dimension B does not include dambar protrusion/intrusion. 3. Controlling dimension: mm Rev: 1.05 10/2004 10/12 Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. © 2001, GSI Technology GS72108ATP/J Ordering Information * Part Number* Package Access Time Temp. Range GS72108ATP-7 400 mil TSOP-II 7 ns Commercial GS72108ATP-8 400 mil TSOP-II 8 ns Commercial GS72108ATP-10 400 mil TSOP-II 10 ns Commercial GS72108ATP-12 400 mil TSOP-II 12 ns Commercial GS72108ATP78I 400 mil TSOP-II 7 ns Industrial GS72108ATP-8I 400 mil TSOP-II 8 ns Industrial GS72108ATP-10I 400 mil TSOP-II 10 ns Industrial GS72108ATP-12I 400 mil TSOP-II 12 ns Industrial GS72108AGP-7 Pb-free 400 mil TSOP-II 7 ns Commercial GS72108AGP-8 Pb-free 400 mil TSOP-II 8 ns Commercial GS72108AGP-10 Pb-free 400 mil TSOP-II 10 ns Commercial GS72108AGP-12 Pb-free 400 mil TSOP-II 12 ns Commercial GS72108AGP78I Pb-free 400 mil TSOP-II 7 ns Industrial GS72108AGTP-8I Pb-free 400 mil TSOP-II 8 ns Industrial GS72108AGP-10I Pb-free 400 mil TSOP-II 10 ns Industrial GS72108AGP-12I Pb-free 400 mil TSOP-II 12 ns Industrial GS72108AJ-7 400 mil SOJ 7 ns Commercial GS72108AJ-8 400 mil SOJ 8 ns Commercial GS72108AJ-10 400 mil SOJ 10 ns Commercial GS72108AJ-12 400 mil SOJ 12 ns Commercial GS72108AJ-7I 400 mil SOJ 7 ns Industrial GS72108AJ-8I 400 mil SOJ 8 ns Industrial GS72108AJ-10I 400 mil SOJ 10 ns Industrial GS72108AJ-12I 400 mil SOJ 12 ns Industrial Status Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number. For example: GS72108ATP-8T Rev: 1.05 10/2004 11/12 Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. © 2001, GSI Technology WWW.ALLDATASHEET.COM Copyright © Each Manufacturing Company. All Datasheets cannot be modified without permission. This datasheet has been download from : www.AllDataSheet.com 100% Free DataSheet Search Site. Free Download. No Register. Fast Search System. www.AllDataSheet.com