CY7C1480V33 72-Mbit (2 M × 36) Pipelined Sync SRAM 72-Mbit (2 M × 36) Pipelined Sync SRAM Features Functional Description ■ Supports bus operation up to 200 MHz ■ Available speed grades are 200 and 167 MHz ■ Registered inputs and outputs for pipelined operation ■ 3.3 V core power supply ■ 2.5 V/3.3 V I/O operation ■ Fast clock-to-output times ❐ 3.0 ns (for 200 MHz device) The CY7C1480V33 SRAM integrates 2 M × 36 SRAM cells with advanced synchronous peripheral circuitry and a two-bit counter for internal burst operation. All synchronous inputs are gated by registers controlled by a positive-edge-triggered Clock Input (CLK). The synchronous inputs include all addresses, all data inputs, address-pipelining Chip Enable (CE1), depth-expansion Chip Enables (CE2 and CE3), Burst Control inputs (ADSC, ADSP, and ADV), Write Enables (BWX, and BWE), and Global Write (GW). Asynchronous inputs include the Output Enable (OE) and the ZZ pin. ■ Provide high performance 3-1-1-1 access rate ■ User selectable burst counter supporting Intel® Pentium® interleaved or linear burst sequences ■ Separate processor and controller address strobes ■ Synchronous self timed writes ■ Asynchronous output enable ■ Single cycle chip deselect ■ CY7C1480V33 available in JEDEC-standard Pb-free 100-pin TQFP package ■ IEEE 1149.1 JTAG-Compatible Boundary Scan ■ “ZZ” Sleep Mode option Addresses and chip enables are registered at the rising edge of the clock when either Address Strobe Processor (ADSP) or Address Strobe Controller (ADSC) are active. Subsequent burst addresses can be internally generated as controlled by the Advance pin (ADV). Address, data inputs, and write controls are registered on-chip to initiate a self timed write cycle.This part supports byte write operations (see "Pin Definitions" on page 5 and "Truth Table" on page 8 for further details). Write cycles can be one to two or four bytes wide as controlled by the byte write control inputs. GW when active LOW causes all bytes to be written. The CY7C1480V33 operates from a +3.3 V core power supply while all outputs may operate with either a +2.5 or +3.3 V supply. All inputs and outputs are JEDEC standard JESD8-5 compatible. Selection Guide 200 MHz 167 MHz Unit Maximum Access Time Description 3.0 3.4 ns Maximum Operating Current 500 450 mA Maximum CMOS Standby Current 120 120 mA Errata: For information on silicon errata, see "Errata" on page 21. Details include trigger conditions, devices affected, and proposed workaround. Cypress Semiconductor Corporation Document Number: 38-05283 Rev. *N • 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600 Revised June 19, 2013 CY7C1480V33 Logic Block Diagram – CY7C1480V33 A 0, A1, A ADDRESS REGISTER 2 A [1:0] MODE ADV CLK Q1 BURST COUNTER CLR AND LOGIC ADSC Q0 ADSP BW D DQ D ,DQP D BYTE WRITE REGISTER DQ D ,DQPD BYTE WRITE DRIVER BW C DQ C ,DQP C BYTE WRITE REGISTER DQ C ,DQP C BYTE WRITE DRIVER DQ B ,DQP B BYTE WRITE REGISTER DQ B ,DQP B BYTE WRITE DRIVER BW B BW A BWE ZZ ENABLE REGISTER SENSE AMPS OUTPUT REGISTERS OUTPUT BUFFERS E DQs DQP A DQP B DQP C DQP D DQ A ,DQP A BYTE WRITE DRIVER DQ A ,DQP A BYTE WRITE REGISTER GW CE 1 CE 2 CE 3 OE MEMORY ARRAY PIPELINED ENABLE INPUT REGISTERS SLEEP CONTROL Document Number: 38-05283 Rev. *N Page 2 of 25 CY7C1480V33 Contents Pin Configurations ........................................................... 4 Pin Definitions .................................................................. 5 Functional Overview ........................................................ 6 Single Read Accesses ................................................ 6 Single Write Accesses Initiated by ADSP ................... 6 Single Write Accesses Initiated by ADSC ................... 7 Burst Sequences ......................................................... 7 Sleep Mode ................................................................. 7 Interleaved Burst Address Table ................................. 7 Linear Burst Address Table ......................................... 7 ZZ Mode Electrical Characteristics ................................. 7 Truth Table ........................................................................ 8 Truth Table for Read/Write .............................................. 9 Maximum Ratings ........................................................... 10 Operating Range ............................................................. 10 Electrical Characteristics ............................................... 10 Capacitance .................................................................... 11 Thermal Resistance ........................................................ 11 Document Number: 38-05283 Rev. *N AC Test Loads and Waveforms ..................................... 12 Switching Characteristics .............................................. 13 Switching Waveforms .................................................... 14 Ordering Information ...................................................... 18 Ordering Code Definitions ......................................... 18 Package Diagrams .......................................................... 19 Acronyms ........................................................................ 20 Document Conventions ................................................. 20 Units of Measure ....................................................... 20 Errata ............................................................................... 21 Part Numbers Affected .............................................. 21 Product Status ........................................................... 21 Ram9 Sync/NoBL ZZ Pin Issues Errata Summary .... 21 Document History Page ................................................. 22 Sales, Solutions, and Legal Information ...................... 25 Worldwide Sales and Design Support ....................... 25 Products .................................................................... 25 PSoC Solutions ......................................................... 25 Page 3 of 25 CY7C1480V33 Pin Configurations 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 A A CE1 CE2 BWD BWC BWB BWA CE3 VDD VSS CLK GW BWE OE ADSC ADSP ADV A A Figure 1. 100-pin TQFP (14 × 20 × 1.4 mm) Pinout[1] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 CY7C1480V33 (2 M × 36) 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 DQPB DQB DQB VDDQ VSSQ DQB DQB DQB DQB VSSQ VDDQ DQB DQB VSS NC VDD ZZ DQA DQA VDDQ VSSQ DQA DQA DQA DQA VSSQ VDDQ DQA DQA DQPA A A A A A A A A A MODE A A A A A1 A0 A A VSS VDD 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 DQPC DQC DQc VDDQ VSSQ DQC DQC DQC DQC VSSQ VDDQ DQC DQC NC VDD NC VSS DQD DQD VDDQ VSSQ DQD DQD DQD DQD VSSQ VDDQ DQD DQD DQPD Note 1. Errata: The ZZ pin (Pin 64) needs to be externally connected to ground. For more information, see“Errata” on page 21.This issue is fixed in the CY7C1480BV33 device. Document Number: 38-05283 Rev. *N Page 4 of 25 CY7C1480V33 Pin Definitions Pin Name I/O Description A0, A1, A InputAddress Inputs Used to Select One of the Address Locations. Sampled at the rising edge of the CLK Synchronous if ADSP or ADSC is active LOW, and CE1, CE2, and CE3 are sampled active. A1:A0 are fed to the two-bit counter. BWA,BWB, BWC,BWD InputByte Write Select Inputs, Active LOW. Qualified with BWE to conduct byte writes to the SRAM. Synchronous Sampled on the rising edge of CLK. GW InputGlobal Write Enable Input, active LOW. When asserted LOW on the rising edge of CLK, a global write Synchronous is conducted (all bytes are written, regardless of the values on BWX and BWE). BWE InputByte Write Enable Input, Active LOW. Sampled on the rising edge of CLK. This signal must be asserted Synchronous LOW to conduct a byte write. CLK InputClock Clock Input. Used to capture all synchronous inputs to the device. Also used to increment the burst counter when ADV is asserted LOW during a burst operation. CE1 InputChip Enable 1 Input, Active LOW. Sampled on the rising edge of CLK. Used in conjunction with CE2 Synchronous and CE3 to select or deselect the device. ADSP is ignored if CE1 is HIGH. CE1 is sampled only when a new external address is loaded. CE2 InputChip Enable 2 Input, Active HIGH. Sampled on the rising edge of CLK. Used in conjunction with CE1 Synchronous and CE3 to select or deselect the device. CE2 is sampled only when a new external address is loaded. CE3 InputChip Enable 3 Input, Active LOW. Sampled on the rising edge of CLK. Used in conjunction with CE1 Synchronous and CE2 to select or deselect the device. CE3 is sampled only when a new external address is loaded. OE InputOutput Enable, Asynchronous Input, Active LOW. Controls the direction of the I/O pins. When LOW, Asynchronous the I/O pins behave as outputs. When deasserted HIGH, I/O pins are tri-stated, and act as input data pins. OE is masked during the first clock of a read cycle when emerging from a deselected state. ADV InputAdvance Input Signal, Sampled on the Rising Edge of CLK, Active LOW. When asserted, it Synchronous automatically increments the address in a burst cycle. ADSP InputAddress Strobe from Processor, Sampled on the Rising Edge of CLK, Active LOW. When asserted Synchronous LOW, addresses presented to the device are captured in the address registers. A1:A0 are also loaded into the burst counter. When ADSP and ADSC are both asserted, only ADSP is recognized. ASDP is ignored when CE1 is deasserted HIGH. ADSC InputAddress Strobe from Controller, Sampled on the Rising Edge of CLK, Active LOW. When asserted Synchronous LOW, addresses presented to the device are captured in the address registers. A1:A0 are also loaded into the burst counter. When ADSP and ADSC are both asserted, only ADSP is recognized. ZZ[2] InputZZ “Sleep” Input, Active HIGH. When asserted HIGH places the device in a non-time-critical “sleep” Asynchronous condition with data integrity preserved. For normal operation, this pin has to be LOW or left floating. ZZ pin has an internal pull-down. DQs, DQPs I/OBidirectional Data I/O Lines. As inputs, they feed into an on-chip data register that is triggered by the Synchronous rising edge of CLK. As outputs, they deliver the data contained in the memory location specified by the addresses presented during the previous clock rise of the read cycle. The direction of the pins is controlled by OE. When OE is asserted LOW, the pins behave as outputs. When HIGH, DQs and DQPX are placed in a tri-state condition. VDD Power Supply Power supply inputs to the core of the device. VSS Ground Ground for the core of the device. VSSQ[3] I/O Ground Ground for the I/O circuitry. VDDQ I/O Power Supply Power supply for the I/O circuitry. Notes 2. Errata: The ZZ pin (Pin 64) needs to be externally connected to ground. For more information, see“Errata” on page 21.This issue is fixed in the CY7C1480BV33 device. 3. Applicable for TQFP package. Document Number: 38-05283 Rev. *N Page 5 of 25 CY7C1480V33 Pin Definitions (continued) Pin Name MODE I/O Description Input Static Selects Burst Order. When tied to GND selects linear burst sequence. When tied to VDD or left floating selects interleaved burst sequence. This is a strap pin and must remain static during device operation. Mode Pin has an internal pull up. TDO JTAG Serial Serial data-out to the JTAG circuit. Delivers data on the negative edge of TCK. If the JTAG feature is Output not used, this pin must be disconnected. This pin is not available on TQFP packages. Synchronous TDI JTAG Serial Serial data-In to the JTAG circuit. Sampled on the rising edge of TCK. If the JTAG feature is not used, Input this pin can be disconnected or connected to VDD. This pin is not available on TQFP packages. Synchronous TMS JTAG Serial Serial data-In to the JTAG circuit. Sampled on the rising edge of TCK. If the JTAG feature is not used, this pin can be disconnected or connected to VDD. This pin is not available on TQFP packages. Input Synchronous TCK JTAG Clock Clock input to the JTAG circuitry. If the JTAG feature is not used, this pin must be connected to VSS. This pin is not available on TQFP packages. NC – No Connects. Not internally connected to the die. 144M, 288M, 576M, and 1G are address expansion pins and are not internally connected to the die. Functional Overview All synchronous inputs pass through input registers controlled by the rising edge of the clock. All data outputs pass through output registers controlled by the rising edge of the clock. Maximum access delay from the clock rise (tCO) is 3.0 ns (200 MHz device). The CY7C1480V33 supports secondary cache in systems using either a linear or interleaved burst sequence. The interleaved burst order supports Pentium and i486 processors. The linear burst sequence is suited for processors that use a linear burst sequence. The burst order is user selectable, and is determined by sampling the MODE input. Accesses can be initiated with either the Processor Address Strobe (ADSP) or the Controller Address Strobe (ADSC). Address advancement through the burst sequence is controlled by the ADV input. A two-bit on-chip wraparound burst counter captures the first address in a burst sequence and automatically increments the address for the rest of the burst access. Byte Write operations are qualified with the Byte Write Enable (BWE) and Byte Write Select (BWX) inputs. A Global Write Enable (GW) overrides all byte write inputs and writes data to all four bytes. All writes are simplified with on-chip synchronous self-timed write circuitry. Three synchronous Chip Selects (CE1, CE2, CE3) and an asynchronous Output Enable (OE) provide easy bank selection and output tri-state control. ADSP is ignored if CE1 is HIGH. Single Read Accesses This access is initiated when the following conditions are satisfied at clock rise: (1) ADSP or ADSC is asserted LOW, (2) CE1, CE2, CE3 are all asserted active, and (3) the write signals (GW, BWE) are all deasserted HIGH. ADSP is ignored if CE1 is HIGH. The address presented to the address inputs (A) is stored into the address advancement logic and the Address Register while being presented to the memory array. The corresponding data is allowed to propagate to the input of the Output Registers. At the rising edge of the next clock the data is allowed to Document Number: 38-05283 Rev. *N propagate through the output register and onto the data bus within 3.0 ns (250-MHz device) if OE is active LOW. The only exception occurs when the SRAM is emerging from a deselected state to a selected state, its outputs are always tri-stated during the first cycle of the access. After the first cycle of the access, the outputs are controlled by the OE signal. Consecutive single read cycles are supported. After the SRAM is deselected at clock rise by the chip select and either ADSP or ADSC signals, its output tri-states immediately. Single Write Accesses Initiated by ADSP This access is initiated when both of the following conditions are satisfied at clock rise: (1) ADSP is asserted LOW, and (2) CE1, CE2, CE3 are all asserted active. The address presented to A is loaded into the address register and the address advancement logic while being delivered to the memory array. The write signals (GW, BWE, and BWX) and ADV inputs are ignored during this first cycle. ADSP triggered write accesses require two clock cycles to complete. If GW is asserted LOW on the second clock rise, the data presented to the DQs inputs is written into the corresponding address location in the memory array. If GW is HIGH, then the write operation is controlled by BWE and BWX signals. The CY7C1480V33 provides byte write capability that is described in the "Truth Table for Read/Write" on page 9. Asserting the Byte Write Enable input (BWE) with the selected Byte Write (BWX) input, will selectively write to only the desired bytes. Bytes not selected during a Byte Write operation will remain unaltered. A synchronous self-timed Write mechanism has been provided to simplify the Write operations. Because CY7C1480V33 is a common I/O device, the Output Enable (OE) must be deasserted HIGH before presenting data to the DQs inputs. Doing so will tri-state the output drivers. As a safety precaution, DQs are automatically tri-stated whenever a Write cycle is detected, regardless of the state of OE. Page 6 of 25 CY7C1480V33 Single Write Accesses Initiated by ADSC Sleep Mode ADSC Write accesses are initiated when the following conditions are satisfied: (1) ADSC is asserted LOW, (2) ADSP is deasserted HIGH, (3) CE1, CE2, CE3 are all asserted active, and (4) the appropriate combination of the Write inputs (GW, BWE, and BWX) are asserted active to conduct a Write to the desired byte(s). ADSC-triggered Write accesses require a single clock cycle to complete. The address presented to A is loaded into the address register and the address advancement logic while being delivered to the memory array. The ADV input is ignored during this cycle. If a global Write is conducted, the data presented to the DQs is written into the corresponding address location in the memory core. If a Byte Write is conducted, only the selected bytes are written. Bytes not selected during a Byte Write operation will remain unaltered. A synchronous self-timed Write mechanism has been provided to simplify the Write operations. The ZZ input pin is an asynchronous input. Asserting ZZ places the SRAM in a power conservation “sleep” mode. Two clock cycles are required to enter into or exit from this “sleep” mode. While in this mode, data integrity is guaranteed. Accesses pending when entering the “sleep” mode are not considered valid nor is the completion of the operation guaranteed. The device must be deselected before entering the “sleep” mode. CE1, CE2, CE3, ADSP, and ADSC must remain inactive for the duration of tZZREC after the ZZ input returns LOW. Interleaved Burst Address Table (MODE = Floating or VDD) Because CY7C1480V33 is a common I/O device, the Output Enable (OE) must be deasserted HIGH before presenting data to the DQs inputs. Doing so will tri-state the output drivers. As a safety precaution, DQs are automatically tri-stated whenever a Write cycle is detected, regardless of the state of OE. Burst Sequences The CY7C1480V33 provides a two-bit wraparound counter, fed by A1:A0, that implements either an interleaved or linear burst sequence. The interleaved burst sequence is designed specifically to support Intel Pentium applications. The linear burst sequence is designed to support processors that follow a linear burst sequence. The burst sequence is user selectable through the MODE input. First Address A1:A0 Second Address A1:A0 Third Address A1:A0 Fourth Address A1:A0 00 01 10 11 01 00 11 10 10 11 00 01 11 10 01 00 Linear Burst Address Table (MODE = GND) Asserting ADV LOW at clock rise will automatically increment the burst counter to the next address in the burst sequence. Both Read and Write burst operations are supported. First Address A1:A0 Second Address A1:A0 Third Address A1:A0 Fourth Address A1:A0 00 01 10 11 01 10 11 00 10 11 00 01 11 00 01 10 ZZ Mode Electrical Characteristics Parameter Description Test Conditions IDDZZ Sleep mode standby current ZZ > VDD– 0.2 V tZZS Device operation to ZZ ZZ > VDD – 0.2 V tZZREC ZZ recovery time ZZ < 0.2 V tZZI ZZ Active to Sleep current tRZZI Min Max Unit – 120 mA – 2tCYC ns 2tCYC – ns This parameter is sampled – 2tCYC ns ZZ Inactive to exit Sleep current This parameter is sampled 0 – ns Document Number: 38-05283 Rev. *N Page 7 of 25 CY7C1480V33 Truth Table The Truth Table for CY7C1480V33 follows. [4, 5, 6, 7, 8] Operation Add. Used CE1 CE2 CE3 ZZ ADSP ADSC ADV WRITE OE CLK DQ Deselect Cycle, Power Down None H X X L X L X X X L–H Tri-State Deselect Cycle, Power Down None L L X L L X X X X L–H Tri-State Deselect Cycle, Power Down None L X H L L X X X X L–H Tri-State Deselect Cycle, Power Down None L L X L H L X X X L–H Tri-State L–H Tri-State Deselect Cycle, Power Down None L X H L H L X X X Sleep Mode, Power Down None X X X H X X X X X X Tri-State READ Cycle, Begin Burst External L H L L L X X X L L–H Q READ Cycle, Begin Burst External L H L L L X X X H L–H Tri-State WRITE Cycle, Begin Burst External L H L L H L X L X L–H D READ Cycle, Begin Burst External L H L L H L X H L L–H Q READ Cycle, Begin Burst External L H L L H L X H H L–H Tri-State Next X X X L H H L H L L–H READ Cycle, Continue Burst Q READ Cycle, Continue Burst Next X X X L H H L H H L–H Tri-State READ Cycle, Continue Burst Next H X X L X H L H L L–H READ Cycle, Continue Burst Next H X X L X H L H H L–H Tri-State WRITE Cycle, Continue Burst Next X X X L H H L L X L–H WRITE Cycle, Continue Burst Next H X X L X H L L X L–H D READ Cycle, Suspend Burst Current X X X L H H H H L L–H Q READ Cycle, Suspend Burst Current X X X L H H H H H L–H Tri-State READ Cycle, Suspend Burst Current H X X L X H H H L L–H READ Cycle, Suspend Burst Current H X X L X H H H H L–H Tri-State WRITE Cycle,Suspend Burst Current X X X L H H H L X L–H D WRITE Cycle,Suspend Burst Current H X X L X H H L X L–H D Q D Q Notes 4. X = “Don't Care.” H = Logic HIGH, L = Logic LOW. 5. WRITE = L when any one or more Byte Write enable signals and BWE = L or GW = L. WRITE = H when all Byte write enable signals, BWE, GW = H. 6. The DQ pins are controlled by the current cycle and the OE signal. OE is asynchronous and is not sampled with the clock. 7. The SRAM always initiates a read cycle when ADSP is asserted, regardless of the state of GW, BWE, or BWX. Writes may occur only on subsequent clocks after the ADSP or with the assertion of ADSC. As a result, OE must be driven HIGH before the start of the write cycle to allow the outputs to tri-state. OE is a “don't care” for the remainder of the write cycle. 8. OE is asynchronous and is not sampled with the clock rise. It is masked internally during write cycles. During a read cycle all data bits are Tri-State when OE is inactive or when the device is deselected, and all data bits behave as output when OE is active (LOW). Document Number: 38-05283 Rev. *N Page 8 of 25 CY7C1480V33 Truth Table for Read/Write The following is a Truth Table for Read/Write for the CY7C1480V33. [9] Function GW BWE BWD BWC BWB BWA Read H H X X X X Read H L H H H H Write Byte A – (DQA and DQPA) Write Byte B – (DQB and DQPB) H L H H H L H L H H L H Write Bytes B, A H L H H L L Write Byte C – (DQC and DQPC) H L H L H H Write Bytes C, A H L H L H L Write Bytes C, B H L H L L H Write Bytes C, B, A H L H L L L Write Byte D – (DQD and DQPD) H L L H H H Write Bytes D, A H L L H H L Write Bytes D, B H L L H L H Write Bytes D, B, A H L L H L L Write Bytes D, C H L L L H H Write Bytes D, C, A H L L L H L Write Bytes D, C, B H L L L L H Write All Bytes H L L L L L Write All Bytes L X X X X X Note 9. The DQ pins are controlled by the current cycle and the OE signal. OE is asynchronous and is not sampled with the clock. Document Number: 38-05283 Rev. *N Page 9 of 25 CY7C1480V33 Maximum Ratings DC Input Voltage ................................ –0.5 V to VDD + 0.5 V Exceeding the maximum ratings may impair the useful life of the device. These user guidelines are not tested. Storage Temperature ............................... –65 C to +150 C Ambient Temperature with Power Applied ......................................... –55 C to +125 C Current into Outputs (LOW) ........................................ 20 mA Static Discharge Voltage (MIL-STD-883, Method 3015) ................................. > 2001 V Latch-up Current .................................................... > 200 mA Operating Range Supply Voltage on VDD Relative to GND .....–0.3 V to +4.6 V Range Supply Voltage on VDDQ Relative to GND .... –0.3 V to +VDD DC Voltage Applied to Outputs in Tri-State ........................................–0.5 V to VDDQ + 0.5 V Commercial Ambient Temperature 0 C to +70 C VDD VDDQ 3.3 V– 5% / 2.5 V – 5% to + 10% VDD Electrical Characteristics Over the Operating Range Parameter [10, 11] Description VDD Power Supply Voltage VDDQ I/O Supply Voltage VOH Output HIGH Voltage VOL VIH Output LOW Voltage Input HIGH Voltage[10] Voltage[10] Test Conditions Min Max Unit 3.135 3.6 V For 3.3 V I/O 3.135 VDD V For 2.5 V I/O 2.375 2.625 V For 3.3 V I/O, IOH = –4.0 mA 2.4 – V For 2.5 V I/O, IOH = –1.0 mA 2.0 – V For 3.3 V I/O, IOL = 8.0 mA – 0.4 V For 2.5 V I/O, IOL = 1.0 mA – 0.4 V For 3.3 V I/O 2.0 VDD + 0.3 V V For 2.5 V I/O 1.7 VDD + 0.3 V V For 3.3 V I/O –0.3 0.8 V For 2.5 V I/O VIL Input LOW –0.3 0.7 V IX Input Leakage Current except ZZ GND VI VDDQ and MODE –5 5 A Input Current of MODE –30 – A Input = VSS Input = VDD – 5 A Input Current of ZZ Input = VSS –5 – A Input = VDD – 30 A IOZ Output Leakage Current GND VI VDDQ, Output Disabled –5 5 A IDD VDD Operating Supply Current VDD = Max, IOUT = 0 mA, f = fMAX = 1/tCYC 5.0-ns cycle, 200 MHz – 500 mA 6.0-ns cycle, 167 MHz – 450 mA VDD = Max, Device Deselected, 5.0-ns cycle, VIN VIH or VIN VIL, 200 MHz f = fMAX = 1/tCYC 6.0-ns cycle, 167 MHz – 245 mA – 245 mA VDD = Max, Device Deselected, All speeds VIN 0.3 V or VIN > VDDQ – 0.3 V, f=0 – 120 mA ISB1 ISB2 Automatic CE Power Down Current – TTL Inputs Automatic CE Power Down Current – CMOS Inputs Notes 10. Overshoot: VIH(AC) < VDD +1.5 V (Pulse width less than tCYC/2). Undershoot: VIL(AC) > –2V (Pulse width less than tCYC/2). 11. Power up: Assumes a linear ramp from 0 V to VDD(min.) within 200 ms. During this time VIH < VDD and VDDQ < VDD. Document Number: 38-05283 Rev. *N Page 10 of 25 CY7C1480V33 Electrical Characteristics (continued) Over the Operating Range Parameter [10, 11] ISB3 Description Automatic CE Power Down Current – CMOS Inputs ISB4 Automatic CE Power Down Current – TTL Inputs Test Conditions Min Max Unit VDD = Max, Device Deselected, 5.0-ns cycle, VIN 0.3 V or VIN > VDDQ – 0.3 V, 200 MHz f = fMAX = 1/tCYC 6.0-ns cycle, 167 MHz – 245 mA – 245 mA VDD = Max, Device Deselected, All speeds VIN VIH or VIN VIL, f = 0 – 135 mA Capacitance Parameter [12] Description CADDRESS Address input capacitance CDATA Data input capacitance CCTRL CCLK CI/O Test Conditions TA = 25 C, f = 1 MHz, VDD = 3.3 V, VDDQ = 2.5 V 100-pin TQFP Unit Max 6 pF 5 pF Control input capacitance 8 pF Clock input capacitance 6 pF Input/Output capacitance 5 pF Test Conditions 100-pin TQFP Package Unit Test conditions follow standard test methods and procedures for measuring thermal impedance, according to EIA/JESD51. 24.63 C/W 2.28 C/W Thermal Resistance Parameter [12] Description JA Thermal resistance (junction to ambient) JC Thermal resistance (junction to case) Note 12. Tested initially and after any design or process change that may affect these parameters. Document Number: 38-05283 Rev. *N Page 11 of 25 CY7C1480V33 AC Test Loads and Waveforms Figure 2. AC Test Loads and Waveforms 3.3 V I/O Test Load R = 317 3.3 V OUTPUT ALL INPUT PULSES VDDQ OUTPUT RL = 50 Z0 = 50 10% 90% 10% 90% GND 5 pF R = 351 1 ns 1 ns VL = 1.5 V INCLUDING JIG AND SCOPE (a) (c) (b) 2.5 V I/O Test Load R = 1667 2.5V OUTPUT Z0 = 50 10% R = 1538 VL = 1.25 V Document Number: 38-05283 Rev. *N INCLUDING JIG AND SCOPE 90% 10% 90% GND 5 pF (a) ALL INPUT PULSES VDDQ OUTPUT RL = 50 (b) 1 ns 1 ns (c) Page 12 of 25 CY7C1480V33 Switching Characteristics Over the Operating Range Parameter [13, 14] tPOWER Description VDD(Typical) to the First Access [15] 200 MHz 167 MHz Unit Min Max Min Max 1 – 1 – ms Clock tCYC Clock Cycle Time 5.0 – 6.0 – ns tCH Clock HIGH 2.0 – 2.4 – ns tCL Clock LOW 2.0 – 2.4 – ns Output Times tCO Data Output Valid After CLK Rise – 3.0 – 3.4 ns tDOH Data Output Hold After CLK Rise 1.3 – 1.5 – ns Clock to Low Z [16, 17, 18] 1.3 – 1.5 – ns tCHZ Clock to High Z [16, 17, 18] – 3.0 – 3.4 ns tOEV OE LOW to Output Valid – 3.0 – 3.4 ns 0 – 0 – ns – 3.0 – 3.4 ns tCLZ tOELZ tOEHZ OE LOW to Output Low Z [16, 17, 18] OE HIGH to Output High Z [16, 17, 18] Setup Times tAS Address Setup Before CLK Rise 1.4 – 1.5 – ns tADS ADSC, ADSP Setup Before CLK Rise 1.4 – 1.5 – ns tADVS ADV Setup Before CLK Rise 1.4 – 1.5 – ns tWES GW, BWE, BWX Setup Before CLK Rise 1.4 – 1.5 – ns tDS Data Input Setup Before CLK Rise 1.4 – 1.5 – ns tCES Chip Enable Setup Before CLK Rise 1.4 – 1.5 – ns tAH Address Hold After CLK Rise 0.4 – 0.5 – ns tADH ADSP, ADSC Hold After CLK Rise 0.4 – 0.5 – ns tADVH ADV Hold After CLK Rise 0.4 – 0.5 – ns tWEH GW, BWE, BWX Hold After CLK Rise 0.4 – 0.5 – ns tDH Data Input Hold After CLK Rise 0.4 – 0.5 – ns tCEH Chip Enable Hold After CLK Rise 0.4 – 0.5 – ns Hold Times Notes 13. Timing reference level is 1.5 V when VDDQ = 3.3 V and is 1.25 V when VDDQ = 2.5 V. 14. Test conditions shown in (a) of Figure 2 on page 12 unless otherwise noted. 15. This part has an internal voltage regulator; tPOWER is the time that the power needs to be supplied above VDD(minimum) initially before a read or write operation can be initiated. 16. tCHZ, tCLZ, tOELZ, and tOEHZ are specified with AC test conditions shown in part (b) of Figure 2 on page 12. Transition is measured ±200 mV from steady-state voltage. 17. At any possible voltage and temperature, tOEHZ is less than tOELZ and tCHZ is less than tCLZ to eliminate bus contention between SRAMs when sharing the same data bus. These specifications do not imply a bus contention condition, but reflect parameters guaranteed over worst case user conditions. Device is designed to achieve High-Z before Low-Z under the same system conditions. 18. This parameter is sampled and not 100% tested. Document Number: 38-05283 Rev. *N Page 13 of 25 CY7C1480V33 Switching Waveforms Figure 3. Read Cycle Timing [19] t CYC CLK t t ADS CH t CL t ADH ADSP t ADS tADH ADSC t AS tAH A1 ADDRESS A2 t WES A3 Burst continued with new base address tWEH GW, BWE, BWx t CES Deselect cycle tCEH CE t ADVS tADVH ADV ADV suspends burst. OE t OEHZ t CLZ Data Out (Q) High-Z Q(A1) t OEV t CO t OELZ t DOH Q(A2) t CHZ Q(A2 + 1) Q(A2 + 2) Q(A2 + 3) Q(A2) Q(A2 + 1) t CO Burst wraps around to its initial state Single READ BURST READ DON’T CARE UNDEFINED Note 19. On this diagram, when CE is LOW: CE1 is LOW, CE2 is HIGH and CE3 is LOW. When CE is HIGH: CE1 is HIGH, CE2 is LOW, or CE3 is HIGH. Document Number: 38-05283 Rev. *N Page 14 of 25 CY7C1480V33 Switching Waveforms (continued) Figure 4. Write Cycle Timing [20, 21] t CYC CLK tCH t ADS tCL tADH ADSP t ADS ADSC extends burst tADH t ADS tADH ADSC t AS tAH A1 ADDRESS A2 A3 Byte write signals are ignored for first cycle when ADSP initiates burst t WES tWEH BWE, BW X t WES tWEH GW t CES tCEH CE t t ADVS ADVH ADV ADV suspends burst OE t DS Data In (D) High-Z t OEHZ tDH D(A1) D(A2) D(A2 + 1) D(A2 + 1) D(A2 + 2) D(A2 + 3) D(A3) D(A3 + 1) D(A3 + 2) Data Out (Q) BURST READ Single WRITE BURST WRITE DON’T CARE Extended BURST WRITE UNDEFINED Notes 20. On this diagram, when CE is LOW: CE1 is LOW, CE2 is HIGH and CE3 is LOW. When CE is HIGH: CE1 is HIGH, CE2 is LOW, or CE3 is HIGH. 21. Full width write can be initiated by either GW LOW; or by GW HIGH, BWE LOW, and BWX LOW. Document Number: 38-05283 Rev. *N Page 15 of 25 CY7C1480V33 Switching Waveforms (continued) Figure 5. Read/Write Cycle Timing [22, 23, 24] tCYC CLK tCL tCH t ADS tADH t AS tAH ADSP ADSC ADDRESS A1 A2 A3 A4 A5 A6 t WES tWEH BWE, BW X t CES tCEH CE ADV OE t DS tCO tDH t OELZ Data In (D) High-Z tCLZ Data Out (Q) High-Z Q(A1) Back-to-Back READs tOEHZ D(A5) D(A3) Q(A4) Q(A2) Single WRITE Q(A4+1) Q(A4+2) Q(A4+3) BURST READ DON’T CARE D(A6) Back-to-Back WRITEs UNDEFINED Notes 22. On this diagram, when CE is LOW: CE1 is LOW, CE2 is HIGH and CE3 is LOW. When CE is HIGH: CE1 is HIGH, CE2 is LOW, or CE3 is HIGH. 23. The data bus (Q) remains in high Z following a write cycle, unless a new read access is initiated by ADSP or ADSC. 24. GW is HIGH. Document Number: 38-05283 Rev. *N Page 16 of 25 CY7C1480V33 Switching Waveforms (continued) Figure 6. ZZ Mode Timing [25, 26] CLK t ZZ ZZ I t ZZREC t ZZI SUPPLY I DDZZ t RZZI ALL INPUTS (except ZZ) Outputs (Q) DESELECT or READ Only High-Z DON’T CARE Notes 25. Device must be deselected when entering ZZ mode. See "Truth Table" on page 8 for all possible signal conditions to deselect the device. 26. DQs are in high Z when exiting ZZ sleep mode. Document Number: 38-05283 Rev. *N Page 17 of 25 CY7C1480V33 Ordering Information Speed (MHz) Package Diagram Ordering Code Part and Package Type Operating Range 167 CY7C1480V33-167AXC 51-85050 100-pin TQFP (14 × 20 × 1.4 mm) Pb-free Commercial 200 CY7C1480V33-200AXC 51-85050 100-pin TQFP (14 × 20 × 1.4 mm) Pb-free Commercial Ordering Code Definitions CY 7 C 1480 V33 - XXX A X C Temperature Range: C = Commercial Pb-free Package Type: A = 100-pin TQFP Frequency Range: XXX = 167 MHz or 200 MHz VDD = 3.3 V Part Identifier: 1480 = SCD, 2 Mb × 36 (72 Mb) Technology Code: C = CMOS Marketing Code: 7 = SRAMs Company ID: CY = Cypress Document Number: 38-05283 Rev. *N Page 18 of 25 CY7C1480V33 Package Diagrams Figure 7. 100-pin TQFP (14 × 20 × 1.4 mm) A100RA Package Outline, 51-85050 51-85050 *D Document Number: 38-05283 Rev. *N Page 19 of 25 CY7C1480V33 Acronyms Document Conventions Acronym Description Units of Measure BGA Ball Grid Array CMOS Complementary Metal Oxide Semiconductor °C degree Celsius FBGA Fine-Pitch Ball Grid Array MHz megahertz I/O Input/Output µA microampere JTAG Joint Test Action Group mA milliampere LSB Least Significant Bit mm millimeter MSB Most Significant Bit ms millisecond OE Output Enable ns nanosecond SRAM Static Random Access Memory ohm TAP Test Access Port % percent TCK Test Clock pF picofarad TDI Test Data-In V volt TDO Test Data-Out W watt TMS Test Mode Select TQFP Thin Quad Flat Pack TTL Transistor Transistor Logic WE Write Enable Document Number: 38-05283 Rev. *N Symbol Unit of Measure Page 20 of 25 CY7C1480V33 Errata This section describes the Ram9 Sync/NoBL ZZ pin, JTAG, and Chip Enable issues. Details include trigger conditions, the devices affected, proposed workaround and silicon revision applicability. Please contact your local Cypress sales representative if you have further questions. Part Numbers Affected Density & Revision 72Mb-Ram9 Synchronous SRAMs: CY7C148*V33 Package Type Operating Range All packages Commercial/Industrial Product Status All of the devices in the Ram9 72Mb Sync/NoBL family are qualified and available in production quantities. Ram9 Sync/NoBL ZZ Pin Issues Errata Summary The following table defines the errata applicable to available Ram9 72Mb Sync/NoBL family devices. Item 1. Issues ZZ Pin Description Device Fix Status When asserted HIGH, the ZZ pin places device in a “sleep” condition with data integrity preserved.The ZZ pin currently does not have an internal pull-down resistor and hence cannot be left floating externally by the user during normal mode of operation. 72M-Ram9 (90nm) For the 72M Ram9 (90 nm) devices, this issue was fixed in the new revision. Please contact your local sales rep for availability. 1. ZZ Pin Issue ■ PROBLEM DEFINITION The problem occurs only when the device is operated in the normal mode with ZZ pin left floating. The ZZ pin on the SRAM device does not have an internal pull-down resistor. Switching noise in the system may cause the SRAM to recognize a HIGH on the ZZ input, which may cause the SRAM to enter sleep mode. This could result in incorrect or undesirable operation of the SRAM. ■ TRIGGER CONDITIONS Device operated with ZZ pin left floating. ■ SCOPE OF IMPACT When the ZZ pin is left floating, the device delivers incorrect data. ■ WORKAROUND Tie the ZZ pin externally to ground. ■ FIX STATUS Fix was done for the 72Mb RAM9 Synchronous SRAMs and 72M RAM9 NoBL SRAMs devices. Fixed devices have a new revision. The following table lists the devices affected and the new revision after the fix. Table 1. List of Affected Devices and the new revision Revision before the Fix New Revision after the Fix CY7C148*V33 CY7C148*BV33 Document Number: 38-05283 Rev. *N Page 21 of 25 CY7C1480V33 Document History Page Document Title: CY7C1480V33, 72-Mbit (2 M × 36) Pipelined Sync SRAM Document Number: 38-05283 Rev. ECN No. Submission Date Orig. of Change Description of Change ** 114670 08/06/02 PKS New data sheet. *A 118281 01/21/03 HGK Changed status from Advanced Information to Preliminary. Updated Features (Removed 300 MHz frequency related information, updated package offering). Updated Selection Guide (Removed 300 MHz frequency related information). Updated Electrical Characteristics (Removed 300 MHz frequency related information). Updated Switching Characteristics (Removed 300 MHz frequency related information, changed maximm value of tCO parameter from 2.4 ns to 2.6 ns for 250 MHz). Updated Ordering Information (Updated part numbers). *B 233368 See ECN NJY Updated Features (Removed 250 MHz frequency related information and included 225 MHz frequency related information). Updated Functional Description. Updated Logic Block Diagrams (Corresponding to CY7C1480V33, CY7C1482V33, CY7C1486V33). Updated Selection Guide (Removed 250 MHz frequency related information and included 225 MHz frequency related information). Updated Functional Overview. Added Boundary Scan Exit Order (For all packages (Corresponding to CY7C1480V33, CY7C1482V33, CY7C1486V33)). Updated Electrical Characteristics (Removed 250 MHz frequency related information and included 225 MHz frequency related information, replaced the TBD’s with their respective values for IDD, ISB1, ISB2, ISB3 and ISB4 parameters). Updated Capacitance (Replaced values for all parameters for all Packages). Updated Thermal Resistance (Replaced values of JA and JC parameters from TBD to respective Thermal Values for all Packages). Updated Switching Characteristics (Removed 250 MHz frequency related information and included 225 MHz frequency related information). Updated Switching Waveforms. Updated Package Diagrams (Changed package outline for 165-ball FBGA package and 209-ball BGA package, removed 119-BGA package offering). *C 299452 See ECN SYT Updated Features (Removed 225 MHz frequency related information and included 250 MHz frequency related information). Updated Selection Guide (Removed 225 MHz frequency related information and included 250 MHz frequency related information). Updated Electrical Characteristics (Removed 225 MHz frequency related information and included 250 MHz frequency related information). Updated Thermal Resistance (Changed values of JA parameter from 16.8 C/W to 24.63 C/W and JC parameter from 3.3 C/W to 2.28 C/W for 100-pin TQFP Package). Updated Switching Characteristics (Removed 225 MHz frequency related information and included 250 MHz frequency related information, changed minimum value of tCYC parameter from 4.4 ns to 4.0 ns for 250 MHz frequency). Updated Ordering Information (Updated part numbers (Added Pb-free information for 100-pin TQFP, 165-ball FBGA and 209-ball BGA Packages), added ‘Pb-free BG packages availability’ comment below the Ordering Information). Document Number: 38-05283 Rev. *N Page 22 of 25 CY7C1480V33 Document History Page (continued) Document Title: CY7C1480V33, 72-Mbit (2 M × 36) Pipelined Sync SRAM Document Number: 38-05283 Rev. ECN No. Submission Date Orig. of Change Description of Change *D 323080 See ECN PCI Updated Selection Guide (Unshaded 200 MHz and 167 MHz frequency related information). Updated Pin Configurations (Modified Address expansion pins/balls in the pinouts for all packages as per JEDEC standard). Updated Pin Definitions. Added Truth Table for Read/Write (Corresponding to CY7C1486V33). Added Note “BWx represents any byte write signal BW[0..7].To enable any byte write BWx, a Logic LOW signal should be applied at clock rise. Any number of bye writes can be enabled at the same time for any given write.” and referred the same note in that table). Updated Operating Range (Added Industrial Operating Range). Updated Electrical Characteristics (Unshaded 200 MHz and 167 MHz frequency related information, Updated test conditions for VOL, VOH parameters). Updated Switching Characteristics (Unshaded 200 MHz and 167 MHz frequency related information). Updated Ordering Information (Updated part numbers, removed ‘Pb-free BG packages availability’ comment below the Ordering Information). *E 416193 See ECN NXR Changed status from Preliminary to Final. Changed address of Cypress Semiconductor Corporation from “3901 North First Street” to “198 Champion Court”. Updated Electrical Characteristics (Updated Note 11 (Changed test condition from VIH < VDD to VIH VDD), changed “Input Load Current except ZZ and MODE” to “Input Leakage Current except ZZ and MODE”, changed minimum value of IX parameter (corresponding to Input current of MODE (Input = VSS)) from –5 A to –30 A, changed maximum value of IX parameter (corresponding to Input current of MODE (Input = VDD)) from 30 A to 5 A respectively, changed minimum value of IX parameter (corresponding to Input current of ZZ (Input = VSS)) from –30 A to –5 A, changed maximum value of IX parameter (corresponding to Input current of ZZ (Input = VDD)) from 5 A to 30 A respectively). Updated Ordering Information (Updated part numbers, replaced Package Name column with Package Diagram in the Ordering Information table). *F 470723 See ECN VKN Updated Maximum Ratings (Added the Maximum Rating for Supply Voltage on VDDQ Relative to GND). Updated TAP AC Switching Characteristics (Changed minimum value of tTH and tTL parameters from 25 ns to 20 ns, changed maximum value of tTDOV parameter from 5 ns to 10 ns). Updated Ordering Information (Updated part numbers). *G 486690 See ECN VKN Updated Pin Configurations (Corrected the typo in the figure 209-ball FBGA pinout (Corrected the ball name H9 to VSS from VSSQ)). *H 1026720 See ECN VKN Updated Pin Definitions (Added Note 3 and referred the same note in VSSQ pin). *I 2898501 03/24/2010 NJY Updated Ordering Information (Removed inactive parts from Ordering Information table) Updated Package Diagrams. *J 3067398 10/20/10 NJY Updated Ordering Information (The part CY7C1480V33-250AXC found to be in “EOL Prune” state in Oracle PLM is removed from the ordering information table) and added Ordering Code Definitions. *K 3257192 05/14/2011 NJY Updated Package Diagrams. Added Acronyms and Units of Measure. Updated in new template. Document Number: 38-05283 Rev. *N Page 23 of 25 CY7C1480V33 Document History Page (continued) Document Title: CY7C1480V33, 72-Mbit (2 M × 36) Pipelined Sync SRAM Document Number: 38-05283 Rev. ECN No. Submission Date Orig. of Change Description of Change *L 3596931 04/23/2012 NJY Updated Features (Removed 250 MHz frequency related information, removed CY7C1482V33, CY7C1486V33 related information, removed 165-ball FBGA pakcage, 209-ball FBGA package related information). Updated Functional Description (Removed CY7C1482V33, CY7C1486V33 related information, removed the Note “For best practices recommendations, please refer to the Cypress application note AN1064, SRAM System Guidelines.” and its reference). Updated Selection Guide (Removed 250 MHz frequency related information). Removed Logic Block Diagram – CY7C1482V33. Removed Logic Block Diagram – CY7C1486V33. Updated Pin Configurations (Removed CY7C1482V33, CY7C1486V33 related information, removed 165-ball FBGA pakcage, 209-ball FBGA package related information). Updated Functional Overview (Removed CY7C1482V33, CY7C1486V33 related information). Updated Truth Table (Removed CY7C1482V33, CY7C1486V33 related information). Removed Truth Table for Read/Write (Corresponding to CY7C1482V33, CY7C1486V33). Removed IEEE 1149.1 Serial Boundary Scan (JTAG). Removed TAP Controller State Diagram. Removed TAP Controller Block Diagram. Removed TAP Timing. Removed TAP AC Switching Characteristics. Removed 3.3 V TAP AC Test Conditions. Removed 3.3 V TAP AC Output Load Equivalent. Removed 2.5 V TAP AC Test Conditions. Removed 2.5 V TAP AC Output Load Equivalent. Removed TAP DC Electrical Characteristics and Operating Conditions. Removed Identification Register Definitions. Removed Scan Register Sizes. Removed Identification Codes. Removed Boundary Scan Exit Order (Corresponding to CY7C1480V33, CY7C1482V33, CY7C1486V33). Updated Operating Range (Removed Industrial Temperature Range). Updated Electrical Characteristics (Removed 250 MHz frequency related information). Updated Capacitance (Removed 165-ball FBGA pakcage, 209-ball FBGA package related information). Updated Thermal Resistance (Removed 165-ball FBGA pakcage, 209-ball FBGA package related information). Updated Switching Characteristics (Removed 250 MHz frequency related information). Updated Package Diagrams (Removed 165-ball FBGA pakcage (spec 51-85165), 209-ball FBGA package (spec 51-85167) related information). Replaced all instances of IO with I/O across the document. *M 3971185 04/23/2013 NJY Added Errata. *N 4033875 06/19/2013 NJY Completing Sunset Review. Document Number: 38-05283 Rev. *N Added Errata Footnotes. Updated in new template. Page 24 of 25 CY7C1480V33 Sales, Solutions, and Legal Information Worldwide Sales and Design Support Cypress maintains a worldwide network of offices, solution centers, manufacturer’s representatives, and distributors. To find the office closest to you, visit us at Cypress Locations. PSoC® Solutions Products Automotive Clocks & Buffers Interface Lighting & Power Control cypress.com/go/automotive cypress.com/go/clocks cypress.com/go/interface cypress.com/go/powerpsoc psoc.cypress.com/solutions PSoC 1 | PSoC 3 | PSoC 4 | PSoC 5LP Cypress Developer Community Community | Forums | Blogs | Video | Training cypress.com/go/plc Memory cypress.com/go/memory PSoC cypress.com/go/psoc Touch Sensing cypress.com/go/support cypress.com/go/touch USB Controllers Wireless/RF Technical Support cypress.com/go/USB cypress.com/go/wireless © Cypress Semiconductor Corporation, 2002-2013. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges. Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by and subject to worldwide patent protection (United States and foreign), United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of, and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as specified above is prohibited without the express written permission of Cypress. Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not assume any liability arising out of the application or use of any product or circuit described herein. Cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges. Use may be limited by and subject to the applicable Cypress software license agreement. Document Number: 38-05283 Rev. *N Revised June 19, 2013 Page 25 of 25 i486 is a trademark and Intel and Pentium are registered trademarks of Intel Corporation. All products and company names mentioned in this document may be the trademarks of their respective holders.