GS88418B-166

Preliminary GS88418/36B-200/180/166/150/133 119-Bump BGA Commercial Temp Industrial Temp Features • FT pin for user-configurable flow through or pipelined operation • Single/Dual Cycle Deselect Selectable • ZQ mode pin for user-selectable high/low output drive strength • 3.3 V +10%/–5% core power supply • 2.5 V or 3.3 V I/O supply • LBO pin for Linear or Interleaved Burst mode • Internal input resistors on mode pins allow floating mode pins • Default to SCD x18/x36 Interleaved Pipeline mode • Byte Write (BW) and/or Global Write (GW) operation • Common data inputs and data outputs • Clock Control, registered, address, data, and control • Internal self-timed write cycle • Automatic power-down for portable applications • 119-bump BGA package 512K x 18, 256K x 36 8Mb S/DCD Sync Burst SRAMs Flow Through/Pipeline Reads 200 MHz–133 MHz 3.3 V VDD 3.3 V and 2.5 V I/O (LBO) input. The Burst function need not be used. New addresses can be loaded on every cycle with no degradation of chip performance. The function of the Data Output register can be controlled by the user via the FT mode bump (Bump 5R). Holding the FT mode pin low places the RAM in Flow Through mode, causing output data to bypass the Data Output Register. Holding FT high places the RAM in Pipeline mode, activating the risingedge-triggered Data Output Register. SCD and DCD Pipelined Reads The GS88436B is a SCD (Single Cycle Deselect) and DCD (Dual Cycle Deselect) pipelined synchronous SRAM. DCD SRAMs pipeline disable commands to the same degree as read commands. SCD SRAMs pipeline deselect commands one stage less than read commands. SCD RAMs begin turning off their outputs immediately after the deselect command has been captured in the input registers. DCD RAMs hold the deselect command for one full cycle and then begin turning off their outputs just after the second rising edge of clock. The user may configure this SRAM for either mode of operation using the SCD mode input on Bump 4L. Pipeline 3-1-1-1 Flow Through 2-1-1-1 tCycle tKQ IDD tKQ tCycle IDD -200 5.0 3.0 450 7.5 10 270 -180 5. 5 3.2 410 8 10 270 -166 6.0 3.5 380 8.5 10 250 -150 6.7 3.8 350 9.0 10 240 -133 7.5 4.0 340 9.5 10 220 Unit ns ns mA ns ns mA Byte Write and Global Write Byte write operation is performed by using Byte Write enable (BW) input combined with one or more individual byte write signals (Bx). In addition, Global Write (GW) is available for writing all bytes at one time, regardless of the Byte Write control inputs. Functional Description Applications The GS88418/36B is a 9,437,184-bit high performance synchronous SRAM with a 2-bit burst address counter. Although of a type originally developed for Level 2 Cache applications supporting high performance CPUs, the device now finds application in synchronous SRAM applications, ranging from DSP main store to networking chip set support. FLXDrive™ The ZQ pin allows selection between high drive strength (ZQ low) for multi-drop bus applications and normal drive strength (ZQ floating or high) point-to-point applications. See the Output Driver Characteristics chart for details. Controls Addresses, data I/Os, chip enables (E1, in x18 version, E1 and E2 in x36 version), address burst control inputs (ADSP, ADSC, ADV), and write control inputs (Bx, BW, GW) are synchronous and are controlled by a positive-edge-triggered clock input (CK). Output enable (G) and power-down control (ZZ) are asynchronous inputs. Burst cycles can be initiated with either ADSP or ADSC inputs. In Burst mode, subsequent burst addresses are generated internally and are controlled by ADV. The burst address counter may be configured to count in either linear or interleave order with the Linear Burst Order Rev: 1.05 10/2001 1/25 Sleep Mode Low power (Sleep mode) is attained through the assertion (High) of the ZZ signal, or by stopping the clock (CK). Memory data is retained during Sleep mode. Core and Interface Voltages The GS884B operates on a 3.3 V power supply and all inputs/ outputs are 3.3 V- and 2.5 V-compatible. Separate output power (VDDQ) pins are used to decouple output noise from the internal circuit. © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 GS88436 Pad Out 119-Bump BGA—Top View 1 A B C D E F G H J K L M N P R T U VDDQ NC NC DQC4 DQC3 VDDQ DQC2 DQC1 VDDQ DQD1 DQD2 VDDQ DQD3 DQD4 NC NC VDDQ 2 A6 E2 A5 DQPC9 DQC8 DQC7 DQC6 DQC5 VDD DQD5 DQD6 DQD7 DQD8 DQPD9 A2 NC NC 3 A7 A4 A3 VSS VSS VSS BC VSS NC VSS BD VSS VSS VSS LBO A10 NC 4 ADSP ADSC VDD ZQ E1 G ADV GW VDD CK SCD BW A1 A0 VDD A11 NC 5 A8 A15 A14 VSS VSS VSS BB VSS NC VSS BA VSS VSS VSS FT A12 NC 6 A9 A17 A16 DQPB9 DQB8 DQB7 DQB6 DQB5 VDD DQA5 DQA6 DQA7 DQA8 DQPA9 A13 NC NC 7 VDDQ NC NC DQB4 DQB3 VDDQ DQB2 DQB1 VDDQ DQA1 DQA2 VDDQ DQA3 DQA4 NC ZZ VDDQ Rev: 1.05 10/2001 2/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 GS88418 Pad Out 119-Bump BGA—Top View 1 A B C D E F G H J K L M N P R T U VDDQ NC NC DQB1 NC VDDQ NC DQB4 VDDQ NC DQB6 VDDQ DQB8 NC NC NC VDDQ 2 A6 NC A5 NC DQB2 NC DQB3 NC VDD DQB5 NC DQB7 NC DQB9 A2 A10 NC 3 A7 A4 A3 VSS VSS VSS BB VSS NC VSS NC VSS VSS VSS LBO A11 NC 4 ADSP ADSC VDD ZQ E1 G ADV GW VDD CK SCD BW A1 A0 VDD NC NC 5 A8 A15 A14 VSS VSS VSS NC VSS NC VSS BA VSS VSS VSS FT A12 NC 6 A9 A17 A16 DQA9 NC DQA7 NC DQA5 VDD NC DQA3 NC DQA2 NC A13 A18 NC 7 VDDQ NC NC NC DQA8 VDDQ DQA6 NC VDDQ DQA4 NC VDDQ NC DQA1 NC ZZ VDDQ Rev: 1.05 10/2001 3/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 GS88418/36 BGA Pin Description Pin Location P4, N4 A2, A3, A5, A6, B3, B5, C2, C3, C5, C6, G4, R2, R6, T3, T5 T4 T2, T6 T2, T6 K7, L7, N7, P7, K6, L6, M6, N6, P6 H7, G7, E7, D7, H6, G6, F6, E6, D6 H1, G1, E1, D1, H2, G2, F2, E2, D2 K1, L1, N1, P1, K2, L2, M2, N2, P2 L5, G5, G3, L3 P7, N6, L6, K7, H6, G7, F6, E7, D6 D1, E2, G2, H1, K2, L1, M2, N1, P2 L5, G3 P6, N7, M6, L7, K6, H7, G6, E6, D7, D2, E1, F2, G1, H2, K1, L2, N2, P1, G5, L3, T4 K4 E4 B2 F4 T7 R5 R3 L4 D4 B1, C1, R1, T1, L4, B7, C7, U6, R7, J3,J5, U2, U3, U4, U5 J2, C4, J4, R4, J6 D3, E3, F3, H3, K3, M3, N3, P3, D5, E5, F5, H5, K5, M5, N5, P5 A1, F1, J1, M1, U1, A7, F7, J7, M7, U7 Symbol A0, A1 An An NC An DQA1–DQPA9 DQB1–DQPB9 DQC1–DQPC9 DQD1–DQPD9 BA, BB, BC, BD DQA1–DQA9 DQB1–DQB9 BA, BB NC CK E1 E2 G ZZ FT LBO SCD ZQ NC VDD VSS VDDQ Type I I I — I I/O I I/O I — I I I I I I I I I — I I I Description Address field LSBs and Address Counter Preset Inputs Address Inputs Address Inputs (x36 Version) No Connect (x36 Version) Address Inputs (x18 Version) Data Input and Output pins (x36 Version) Byte Write Enable for DQA, DQB, DQC, DQD I/Os; active low ( x36 Version) Data Input and Output pins (x18 Version) Byte Write Enable for DQA, DQB Data I/Os; active low ( x18 Version) No Connect (x18 Version) Clock Input Signal; active high Chip Enable; active low Chip Enable; active high Output Enable; active low Sleep Mode control; active high Flow Through or Pipeline mode; active low Linear Burst Order mode; active low Single Cycle Deselect/Dual Cycle Deselect Mode Control FLXDrive Output Impedance Control (Low = Low Impedance [High Drive], High = High Impedance [Low Drive]) No Connect Core power supply I/O and Core Ground Output driver power supply BPR2000.002.14 Rev: 1.05 10/2001 4/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 GS88418/36 Block Diagram Register A0–An D Q A0 D0 A1 D1 Q1 Counter Load A Q0 A0 A1 LBO ADV CK ADSC ADSP GW BW BA Register Memory Array Q D Q D Register D BB Q 18 4 18 Register D BC Q Q Register D Register Q Register D D BD Q Register D Q Register E1 D Q Register D FT G Power Down Control Q ZZ DCD=0 SCD=1 DQx0–DQx9 Note: Only x18 version shown for simplicity. Rev: 1.05 10/2001 5/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 Mode Pin Functions Mode Name Burst Order Control Output Register Control Power Down Control Single/Dual Cycle Deselect Control FLXDrive Output Impedance Control Pin Name LBO FT ZZ SCD ZQ State L H or NC L H or NC L or NC H L H or NC L H Function Linear Burst Interleaved Burst Flow Through Pipeline Active Standby, IDD = ISB Dual Cycle Deselect Single Cycle Deselect High Drive (Low Impedance) Low Drive (High Impedance) Note: There are pull-up devices on the LBO, ZQ, SCD, and FT pins and a pull down device on the ZZ pin, so those input pins can be unconnected and the chip will operate in the default states as specified in the above table. Enable / Disable Parity I/O Pins This SRAM allows the user to configure the device to operate in Parity I/O active (x18 or x36) or in Parity I/O inactive (x16 or x32) mode. Holding the PE bump low or letting it float will activate the 9th I/O on each byte of the RAM. Tying PE high deactivates the 9th I/O of each byte, although the bit in each byte of the memory array remains active to store and recall parity bits generated and read into the ByteSafe parity circuits. Burst Counter Sequences Linear Burst Sequence A[1:0] A[1:0] A[1:0] A[1:0] 1st address 2nd address 3rd address 4th address 00 01 10 11 01 10 11 00 10 11 00 01 11 00 01 10 1st address 2nd address 3rd address 4th address Interleaved Burst Sequence A[1:0] A[1:0] A[1:0] A[1:0] 00 01 10 11 01 00 11 10 10 11 00 01 11 10 01 00 BPR 1999.05.18 Note: The burst counter wraps to initial state on the 5th clock. Note: The burst counter wraps to initial state on the 5th clock. Rev: 1.05 10/2001 6/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 Byte Write Truth Table Function Read Read Write byte a Write byte b Write byte c Write byte d Write all bytes Write all bytes GW H H H H H H H L BW H L L L L L L X BA X H L H H H L X BB X H H L H H L X BC X H H H L H L X BD X H H H H L L X Notes 1 1 2, 3 2, 3 2, 3, 4 2, 3, 4 2, 3, 4 Notes: 1. All byte outputs are active in read cycles regardless of the state of Byte Write Enable inputs. 2. Byte Write Enable inputs BA, BB, BC, and/or BD may be used in any combination with BW to write single or multiple bytes. 3. All byte I/Os remain High-Z during all write operations regardless of the state of Byte Write Enable inputs. 4. Bytes “C” and “D” are only available on the x36 version. Rev: 1.05 10/2001 7/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 Synchronous Truth Table Operation Deselect Cycle, Power Down Deselect Cycle, Power Down Deselect Cycle, Power Down Read Cycle, Begin Burst Read Cycle, Begin Burst Write Cycle, Begin Burst Read Cycle, Continue Burst Read Cycle, Continue Burst Write Cycle, Continue Burst Write Cycle, Continue Burst Read Cycle, Suspend Burst Read Cycle, Suspend Burst Write Cycle, Suspend Burst Write Cycle, Suspend Burst Address Used None None None External External External Next Next Next Next Current Current Current Current State Diagram Key5 X X X R R W CR CR CW CW E1 H L L L L L X H X H X H X H E22 (x36only) ADSP ADSC X L H L H H H X H X H X H X L X L X L L H H H H H H H H ADV X X X X X X L L L L H H H H W3 X X X X F T F F T T F F T T DQ4 High-Z High-Z High-Z Q Q D Q Q D D Q Q D D X F F T T T X X X X X X X X Notes: 1. X = Don’t Care, H = High, L = Low. 2. For x36 Version, E = T (True) if E2 = 1; E = F (False) if E2 = 0. 3. W = T (True) and F (False) is defined in the Byte Write Truth Table preceding. 4. G is an asynchronous input. G can be driven high at any time to disable active output drivers. G low can only enable active drivers (shown as “Q” in the Truth Table above). 5. 6. 7. All input combinations shown above are tested and supported. Input combinations shown in gray boxes need not be used to accomplish basic synchronous or synchronous burst operations and may be avoided for simplicity. Tying ADSP high and ADSC low allows simple non-burst synchronous operations. See BOLD items above. Tying ADSP high and ADV low while using ADSC to load new addresses allows simple burst operations. See ITALIC items above. Rev: 1.05 10/2001 8/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 Simplified State Diagram X Deselect W W Simple Synchronous Operation R R X CW First Write R CR First Read X CR Simple Burst Synchronous Operation W R X Burst Write CR CW R Burst Read X CR Notes: 1. The diagram shows only supported (tested) synchronous state transitions. The diagram presumes G is tied low. 2. The upper portion of the diagram assumes active use of only the Enable (E1 and E2) and Write (BA, BB, BC, BD, BW, and GW) control inputs, and that ADSP is tied high and ADSC is tied low. 3. The upper and lower portions of the diagram together assume active use of only the Enable, Write, and ADSC control inputs, and assumes ADSP is tied high and ADV is tied low. Rev: 1.05 10/2001 9/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 Simplified State Diagram with G X Deselect W W X W CW R R First Write R CR First Read X CR CW W X Burst Write R CR W CW R X Burst Read CW CR Notes: 1. The diagram shows supported (tested) synchronous state transitions plus supported transitions that depend upon the use of G. 2. Use of “Dummy Reads” (Read Cycles with G High) may be used to make the transition from read cycles to write cycles without passing through a Deselect cycle. Dummy Read cycles increment the address counter just like normal read cycles. 3. Transitions shown in gray tone assume G has been pulsed high long enough to turn the RAM’s drivers off and for incoming data to meet Data Input Set Up Time. Rev: 1.05 10/2001 10/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 Absolute Maximum Ratings (All voltages reference to VSS) Symbol VDD VDDQ VCK VI/O VIN IIN IOUT PD TSTG TBIAS Description Voltage on VDD Pins Voltage in VDDQ Pins Voltage on Clock Input Pin Voltage on I/O Pins Voltage on Other Input Pins Input Current on Any Pin Output Current on Any I/O Pin Package Power Dissipation Storage Temperature Temperature Under Bias Value –0.5 to 4.6 –0.5 to VDD –0.5 to 6 –0.5 to VDDQ +0.5 (≤ 4.6 V max.) –0.5 to VDD +0.5 (≤ 4.6 V max.) +/–20 +/–20 1.5 –55 to 125 –55 to 125 Unit V V V V V mA mA W oC o C Note: Permanent damage to the device may occur if the Absolute Maximum Ratings are exceeded. Operation should be restricted to Recommended Operating Conditions. Exposure to conditions exceeding the Absolute Maximum Ratings, for an extended period of time, may affect reliability of this component. Recommended Operating Conditions Parameter Supply Voltage I/O Supply Voltage Input High Voltage Input Low Voltage Ambient Temperature (Commercial Range Versions) Ambient Temperature (Industrial Range Versions) Symbol VDD VDDQ VIH VIL TA TA Min. 3.135 2.375 1.7 –0.3 0 –40 Typ. 3.3 2.5 — — 25 25 Max. 3.6 VDD VDD +0.3 0.8 70 85 Unit V V V V °C °C Notes 1 2 2 3 3 Notes: 1. Unless otherwise noted, all performance specifications quoted are evaluated for worst case at both 2.75 V ≤ VDDQ ≤ 2.375 V (i.e., 2.5 V I/O) and 3.6 V ≤ VDDQ ≤ 3.135 V (i.e., 3.3 V I/O), and quoted at whichever condition is worst case. 2. This device features input buffers compatible with both 3.3 V and 2.5 V I/O drivers. 3. Most speed grades and configurations of this device are offered in both Commercial and Industrial Temperature ranges. The part number of Industrial Temperature Range versions end the character “I”. Unless otherwise noted, all performance specifications quoted are evaluated for worst case in the temperature range marked on the device. 4. Input Under/overshoot voltage must be –2 V > Vi < VDD +2 V with a pulse width not to exceed 20% tKC. Rev: 1.05 10/2001 11/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 Undershoot Measurement and Timing VIH VDD + 2.0 V VSS 50% VSS – 2.0 V 20% tKC VIL 50% VDD Overshoot Measurement and Timing 20% tKC Capacitance (TA = 25oC, f = 1 MHZ, VDD = 3.3 V) Parameter Input Capacitance Input/Output Capacitance Note: These parameters are sample tested. Symbol CIN CI/O Test conditions VIN = 0 V VOUT = 0 V Typ. 4 6 Max. 5 7 Unit pF pF Package Thermal Characteristics Rating Junction to Ambient (at 200 lfm) Junction to Ambient (at 200 lfm) Junction to Case (TOP) Layer Board single four — Symbol RΘJA RΘJA RΘJC Max 40 24 9 Unit °C/W °C/W °C/W Notes 1,2 1,2 3 Notes: 1. Junction temperature is a function of SRAM power dissipation, package thermal resistance, mounting board temperature, ambient. Temperature air flow, board density, and PCB thermal resistance. 2. SCMI G-38-87 3. Average thermal resistance between die and top surface, MIL SPEC-883, Method 1012.1 Rev: 1.05 10/2001 12/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 AC Test Conditions Parameter Input high level Input low level Input slew rate Input reference level Output reference level Output load Conditions 2.3 V 0.2 V 1 V/ns 1.25 V 1.25 V Fig. 1& 2 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 4. Device is deselected as defined by the Truth Table. Output Load 1 DQ 50Ω VT = 1.25 V * Distributed Test Jig Capacitance Output Load 2 2.5 V 30pF* DQ 5pF* 225Ω 225Ω DC Electrical Characteristics Parameter Input Leakage Current (except mode pins) ZZ Input Current Mode Pin Input Current Output Leakage Current Output High Voltage Output High Voltage Output Low Voltage Symbol IIL IINZZ IINM IOL VOH VOH VOL Test Conditions VIN = 0 to VDD VDD ≥ VIN ≥ VIH 0 V ≤ VIN ≤ VIH VDD ≥ VIN ≥ VIL 0 V ≤ VIN ≤ VIL Output Disable, VOUT = 0 to VDD IOH = –4 mA, VDDQ = 2.375 V IOH = –4 mA, VDDQ = 3.135 V IOL = 4 mA Min –1 uA –1 uA –1 uA –300 uA –1 uA –1 uA 1.7 V 2.4 V — Max 1 uA 1 uA 300 uA 1 uA 1 uA 1 uA — — 0.4 V Rev: 1.05 10/2001 13/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 Operating Currents -200 Parameter Test Conditions Device Selected; All other inputs ≥VIH or ≤ VIL Output open Symbol IDD Pipeline IDD Flow Through ISB Pipeline ISB Flow Through IDD Pipeline IDD Flow Through 0 to 70°C 450 270 40 40 120 90 -40 to 85°C 470 290 60 60 140 110 -180 -166 -150 -133 Unit 0 -40 0 -40 0 -40 0 -40 to to to to to to to to 70°C 85°C 70°C 85°C 70°C 85°C 70°C 85°C 410 270 40 40 110 80 430 290 60 60 130 100 380 250 40 40 100 80 400 270 60 60 120 100 350 240 40 40 100 70 370 250 60 60 120 90 340 220 40 40 90 70 360 240 60 60 110 90 Operating Current mA mA mA mA mA mA Standby Current ZZ ≥ VDD – 0.2 V Deselect Current Device Deselected; All other inputs ≥ VIH or ≤ VIL Rev: 1.05 10/2001 14/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 AC Electrical Characteristics Parameter Clock Cycle Time Pipeline Clock to Output Valid Clock to Output Invalid Clock to Output in Low-Z Clock Cycle Time Flow Through Clock to Output Valid Clock to Output Invalid Clock to Output in Low-Z Clock HIGH Time Clock LOW Time Clock to Output in High-Z G to Output Valid G to output in Low-Z G to output in High-Z Setup time Hold time ZZ setup time ZZ hold time ZZ recovery Symbol tKC tKQ tKQX tLZ 1 -200 Min 5.0 — 1.5 1.5 10.0 — 3.0 3.0 1.3 1.5 1.5 — 0 — 1.5 0.5 5 1 20 Max — 3.0 — — — 7.5 — — — — 3.0 3.2 — 3.0 — — — — — Min 5.5 — 1.5 1.5 -180 Max — 3.2 — — — 8.0 — — — — 3.2 3.2 — 3.2 — — — — — Min 6.0 — 1.5 1.5 -166 Max — 3.5 — — — 8.5 — — — — 3.5 3.5 — 3.5 — — — — — Min 6.7 — 1.5 1.5 -150 Max — 3.8 — — — 9.0 — — — — 3.8 3.8 — 3.8 — — — — — Min 7.5 — 1.5 1.5 -133 Max — 4.0 — — — 9.5 — — — — 4.0 4.0 — 4.0 — — — — — Unit ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns ns tKC tKQ tKQX tLZ1 tKH tKL tHZ1 tOE tOLZ1 tOHZ1 tS tH tZZS2 tZZH2 tZZR 10.0 — 3.0 3.0 1.3 1.5 1.5 — 0 — 1.5 0.5 5 1 20 10.0 — 3.0 3.0 1.3 1.5 1.5 — 0 — 1.5 0.5 5 1 20 10.0 — 3.0 3.0 1.3 1.5 1.5 — 0 — 1.5 0.5 5 1 20 10.0 — 3.0 3.0 1.3 1.5 1.5 — 0 — 1.5 0.5 5 1 20 Notes: 1. These parameters are sampled and are not 100% tested. 2. ZZ is an asynchronous signal. However, in order to be recognized on any given clock cycle, ZZ must meet the specified setup and hold times as specified above. Rev: 1.05 10/2001 15/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 Write Cycle Timing Single Write Burst Write Write Deselected CK tS tH tKH tKL tKC ADSP is blocked by E inactive ADSP tS tH ADSC initiated write ADSC tS tH ADV tS tH ADV must be inactive for ADSP Write WR2 WR3 A0–An WR1 tS tH GW tS tH BW tS tH BA–BD tS tH WR1 WR1 WR2 WR3 WR3 E1 masks ADSP E1 tS tH Deselected with E2 E2* E2 only sampled with ADSP or ADSC G tS tH Write specified byte for 2A and all bytes for 2B, 2C& 2D D2A D2B D2C D2D D3A DQA–DQD Hi-Z D1A * Only in 88436B Rev: 1.05 10/2001 16/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 Flow Through Read Cycle Timing Single Read tKL Burst Read CK tS tH tKH tKC ADSP is blocked by E inactive ADSP tS tH ADSC initiated read ADSC tS tH Suspend Burst Suspend Burst ADV tS tH A0–An RD1 tS RD2 RD3 tH GW tS tH BW BA–BD tS tH E1 masks ADSP E1 tS tH E2 only sampled with ADSP or ADSC Deselected with E2 E2* tOE tOHZ G tOLZ tKQX Q1A tLZ tHZ tKQ Q2A Q2B Q2c Q2D Q3A tKQX DQA–DQD Hi-Z Rev: 1.05 10/2001 17/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 Flow Through Read-Write Cycle Timing Single Read Single Write Burst Read CK tS tH tKH tKL tKC ADSP is blocked by E inactive ADSP tS tH ADSC initiated read ADSC ADV tS tH tS tH A0–An RD1 WR1 RD2 tS tH GW tS tH BW tS tH BA–BD tS tH WR1 E1 masks ADSP E1 tS tH E2 only sampled with ADSP and ADSC E2* tOE tOHZ G tKQ tS Q1A tH Q2A Q2B Q2c Q2D Q2A DQA–DQD Hi-Z D1A Burst wrap around to it’s initial state * Only in 88436B Rev: 1.05 10/2001 18/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 Pipelined SCD Read Cycle Timing Single Read Burst Read tKH tKL tKC tS tH ADSC initiated read ADSP is blocked by E inactive CK tS tH ADSP ADSC tS tH Suspend Burst ADV tS tH A0–An RD1 tS RD2 RD3 tH GW tS tH BW BWA–BWD tS tH E1 masks ADSP E1 tS tH E2 only sampled with ADSP or ADSC Deselected with E2 E2* tOE G DQA–DQD Hi-Z tOLZ Q1A tLZ tOHZ tKQX Q2A Q2B Q2c Q2D tKQX Q3A tHZ tKQ * Only in 88436B Rev: 1.05 10/2001 19/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 Pipelined DCD Read-Write Cycle Timing Single Write Single Read tKL Burst Read CK tS tH tKH tKC tS tH ADSP is blocked by E1 inactive ADSP ADSC initiated read ADSC tS tH ADV tS tH A0–An RD1 WR1 RD2 tS tH GW tS tH tH tS BW BA–BD tS tH WR1 E1 masks ADSP E1 tS tH E2 only sampled with ADSP and ADSC E2* tOE tOHZ G DQA–DQD Hi-Z tKQ Q1A tS tH D1a Q2A Q2B Q2c Q2D * Only in 88436B Rev: 1.05 10/2001 20/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 Sleep Mode Timing Diagram CK tS tH tKC tKH tKL ADSP ADSC tZZS ~ ~~~~ ~ ~~~~ ~ tZZH tZZR ZZ Snooze Application Tips Single and Dual Cycle Deselect SCD devices force the use of “dummy read cycles” (read cycles that are launched normally, but that are ended with the output drivers inactive) in a fully synchronous environment. Dummy read cycles waste performance, but their use usually assures there will be no bus contention in transitions from reads to writes or between banks of RAMs. DCD SRAMs do not waste bandwidth on dummy cycles and are logically simpler to manage in a multiple bank application (wait states need not be inserted at bank address boundary crossings), but greater care must be exercised to avoid excessive bus contention. Rev: 1.05 10/2001 21/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 FLXDrive Output Driver Characteristics 120.0 100.0 Pull Down Drivers 80.0 60.0 40.0 20.0 VDD I Out I Out (mA) 0.0 VOut VSS -20.0 -40.0 -60.0 Pull Up Drivers -80.0 -100.0 -120.0 -140.0 -0.5 0 0.5 1 1.5 2 2.5 3 3.5 4 V Out (Pull Down) VDDQ - V Out (Pull Up) 3.1V PD HD 3.6V PD LD 3.6V PU LD 3.1V PU HD 3.6V PD HD 3.1V PU LD 3.3V PD HD 3.3V PU LD 3.3V PD LD 3.3V PU HD 3.1V PD LD 3.6V PU HD Rev: 1.05 10/2001 22/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 Package Dimensions—119-Pin BGA Pin 1 Corner A 7654321 G P B S D A B C D E F G H J K L M N P R T U N Top View R Bottom View Package Dimensions—119-Pin BGA T Symbol A B C D E F G Description Width Length Package Height (including ball) Ball Size Ball Height Package Height (excluding balls) Width between Balls Package Height above board Cut-out Package Width Foot Length Width of package between balls Length of package between balls Variance of Ball Height Min. Nom. Max 13.8 21.8 0.60 0.50 0.75 0.60 1.46 1.27 0.80 0.90 12.00 19.50 7.62 20.32 0.15 1.00 14.0 22.0 14.2 22.2 2.40 0.90 0.70 1.70 K K N P F E C R S T Side View Unit: mm Rev: 1.05 10/2001 23/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 Ordering Information for GSI Synchronous Burst RAMs Org 512K x 18 512K x 18 512K x 18 512K x 18 512K x 18 256K x 36 256K x 36 256K x 36 256K x 36 256K x 36 512K x 18 512K x 18 512K x 18 512K x 18 512K x 18 512K x 36 512K x 36 256K x 36 256K x 36 256K x 36 Part Number1 GS88418B-200 GS88418B-180 GS88418B-166 GS88418B-150 GS88418B-133 GS88436B-200 GS88436B-180 GS88436B-166 GS88436B-150 GS88436B-133 GS88418B-200I GS88418B-180I GS88418B-166I GS88418B-150I GS88418B-133I GS88418B-200I GS88418B-180I GS88436B-166I GS88436B-150I GS88436B-133I Type S/DCD Pipeline/Flow Through S/DCD Pipeline/Flow Through S/DCD Pipeline/Flow Through S/DCD Pipeline/Flow Through S/DCD Pipeline/Flow Through S/DCD Pipeline/Flow Through S/DCD Pipeline/Flow Through S/DCD Pipeline/Flow Through S/DCD Pipeline/Flow Through S/DCD Pipeline/Flow Through S/DCD Pipeline/Flow Through S/DCD Pipeline/Flow Through S/DCD Pipeline/Flow Through S/DCD Pipeline/Flow Through S/DCD Pipeline/Flow Through S/DCD Pipeline/Flow Through S/DCD Pipeline/Flow Through S/DCD Pipeline/Flow Through S/DCD Pipeline/Flow Through S/DCD Pipeline/Flow Through Package BGA BGA BGA BGA BGA BGA BGA BGA BGA BGA BGA BGA BGA BGA BGA BGA BGA BGA BGA BGA Speed2 (MHz/ns) 200/7.5 180/8 166/8.5 150/9 133/9.5 200/7.5 180/8 166/8.5 150/9 133/9.5 200/7.5 180/8 166/8.5 150/9 133/9.5 200/7.5 180/8 166/8.5 150/9 133/9.5 TA3 C C C C C C C C C C I I I I I I I I I I Status Not Available Not Available Notes: 1. Customers requiring delivery in Tape and Reel should add the character “T” to the end of the part number. Example: GS88418BT. 2. The speed column indicates the cycle frequency (MHz) of the device in Pipeline mode and the latency (ns) in Flow Through mode. Each device is Pipeline/Flow Through mode-selectable by the user. 3. TA = C = Commercial Temperature Range. TA = I = Industrial Temperature Range. 4. GSI offers other versions this type of device in many different configurations and with a variety of different features, only some of which are covered in this data sheet. See the GSI Technology web site (www.gsitechnology.com) for a complete listing of current offerings. Rev: 1.05 10/2001 24/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com. Preliminary GS88418/36B-200/180/166/150/133 Revision History DS/DateRev. Code: Old; New GS8841836B Rev 1.00 88418_r1; 88418_r1_01 88418_r1_01; 88418_r1_02 88418_r1_02; 88418_r1_03 Types of Changes Page;Revisions;Reason Format or Content First Release Content Format Content • • Updated BGA pinout to meet JEDEC standards • Updated format to comply with Technical Publications standards • Updated Capitance table—removed Input row and changed Output row to I/O • Updated speed bin table on page 1 (Added 150 MHz and 133 MHz) • Updated pinouts on pages 2 & 3 (U2–U5 should all be NC) • Removed PE, DP, and QE from Pin Description table on page 4; added R7, J3, J5, U2, U3, U4, U5 to NC row • Added 150 MHz and 133 MHz to Operating Currents table on page 14 • Added 150 MHz and 133 MHz to Electrical Characteristics table on page 15 • Deleted BSR table on page 22 • Added references to 150 MHz and 133 MHz speed bins to headers and ordering information table 88418_r1_03; 88418_r1_04 Content 88418_r1_04; 88418_r1_05 Content Rev: 1.05 10/2001 25/25 © 2000, Giga Semiconductor, Inc. Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.