CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY 36-Mbit (1M x 36/2M x 18/512K x 72) Pipelined Sync SRAM Functional Description[1] Features • Supports bus operation up to 250 MHz • Available speed grades are 250, 200,167 MHz • Registered inputs and outputs for pipelined operation • 3.3V core power supply • 2.5V/3.3V I/O operation • Fast clock-to-output times — 2.6 ns (for 250-MHz device) — 3.2 ns (for 200-MHz device) — 3.4 ns (for 167-MHz device) • Provide high-performance 3-1-1-1 access rate Intel® • User-selectable burst counter supporting Pentium® interleaved or linear burst sequences • Separate processor and controller address strobes • Synchronous self-timed writes • Asynchronous output enable • Single Cycle Chip Deselect • Offered in JEDEC-standard 100-pin TQFP, 165-Ball fBGA and 209-Ball fBGA packages • Also available in lead-free packages • IEEE 1149.1 JTAG-Compatible Boundary Scan • “ZZ” Sleep Mode Option The CY7C1440AV33/CY7C1442AV33/CY7C1446AV33 SRAM integrates 1,048,576 x 36, 2,097,152 x 18 and 524,288 x 72 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[2]), 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. Addresses and chip enables are registered at rising edge of 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 Descriptions and Truth Table 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 CY7C1440AV33/CY7C1442AV33/CY7C1446AV33 operates from a +3.3V core power supply while all outputs may operate with either a +2.5 or +3.3V supply. All inputs and outputs are JEDEC-standard JESD8-5-compatible. Selection Guide 250 MHz 200 MHz 167 MHz Unit Maximum Access Time 2.6 3.2 3.4 ns Maximum Operating Current 475 425 375 mA Maximum CMOS Standby Current 100 100 100 mA Shaded areas contain advance information. Please contact your local Cypress sales representative for availability of these parts. Notes: 1. For best-practices recommendations, please refer to the Cypress application note System Design Guidelines on www.cypress.com. 2. CE3, CE2 are for TQFP and 165 fBGA package only. Cypress Semiconductor Corporation Document #: 38-05383 Rev. *B • 3901 North First Street • San Jose, CA 95134 • 408-943-2600 Revised January 31, 2005 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY Logic Block Diagram – CY7C1440AV33 (1 Mbit x 36) A0, A1, A ADDRESS REGISTER 2 A[1:0] MODE ADV CLK Q1 BURST COUNTER CLR AND Q0 LOGIC ADSC ADSP BWD DQD ,DQPD BYTE WRITE REGISTER DQD ,DQPD BYTE WRITE DRIVER BWC DQC ,DQPC BYTE WRITE REGISTER DQC ,DQPC BYTE WRITE DRIVER DQB ,DQPB BYTE WRITE REGISTER DQB ,DQPB BYTE WRITE DRIVER BWB BWA BWE GW CE1 CE2 CE3 OE ZZ MEMORY ARRAY SENSE AMPS OUTPUT REGISTERS OUTPUT BUFFERS E DQs DQPA DQPB DQPC DQPD DQA ,DQPA BYTE WRITE DRIVER DQA ,DQPA BYTE WRITE REGISTER ENABLE REGISTER INPUT REGISTERS PIPELINED ENABLE SLEEP CONTROL Logic Block Diagram – CY7C1442AV33 (2 Mbit x 18) A0, A1, A ADDRESS REGISTER 2 A[1:0] MODE BURST Q1 COUNTER AND LOGIC CLR Q0 ADV CLK ADSC ADSP BWB DQB,DQPB WRITE DRIVER DQB,DQPB WRITE REGISTER MEMORY ARRAY BWA DQA,DQPA WRITE DRIVER DQA,DQPA WRITE REGISTER SENSE AMPS OUTPUT REGISTERS OUTPUT BUFFERS DQs DQPA DQPB E BWE GW CE1 CE2 CE3 ENABLE REGISTER PIPELINED ENABLE INPUT REGISTERS OE ZZ SLEEP CONTROL Document #: 38-05383 Rev. *B Page 2 of 27 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY Logic Block Diagram – CY7C1446AV33 (512K x 72) ADDRESS REGISTER A0, A1,A A[1:0] MODE Q1 BINARY COUNTER CLR Q0 ADV CLK ADSC ADSP BWH DQH, DQPH WRITE DRIVER DQH, DQPH WRITE DRIVER BWG DQF, DQPF WRITE DRIVER DQG, DQPG WRITE DRIVER BWF DQF, DQPF WRITE DRIVER DQF, DQPF WRITE DRIVER BWE DQE, DQPE WRITE DRIVER DQ E, DQP BYTE “a”E WRITE DRIVER BWD DQD, DQPD WRITE DRIVER DQD, DQPD WRITE DRIVER BWC DQC, DQPC WRITE DRIVER DQC, DQPC WRITE DRIVER MEMORY ARRAY SENSE AMPS BWB BWA BWE GW CE1 CE2 CE3 OE ZZ DQB, DQPB WRITE DRIVER DQB, DQPB WRITE DRIVER OUTPUT BUFFERS E DQA, DQPA WRITE DRIVER DQA, DQPA WRITE DRIVER ENABLE REGISTER OUTPUT REGISTERS PIPELINED ENABLE INPUT REGISTERS DQs DQPA DQPB DQPC DQPD DQPE DQPF DQPG DQPH SLEEP CONTROL Document #: 38-05383 Rev. *B Page 3 of 27 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY Pin Configurations NC NC NC VDDQ VSSQ NC NC DQB DQB VSSQ VDDQ DQB DQB NC VDD NC VSS DQB DQB VDDQ VSSQ DQB DQB DQPB NC VSSQ VDDQ NC NC NC 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 CY7C1442AV33 (2 Mbit x 18) 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 Document #: 38-05383 Rev. *B A NC NC VDDQ VSSQ NC DQPA DQA DQA VSSQ VDDQ DQA DQA VSS NC VDD ZZ DQA DQA VDDQ VSSQ DQA DQA NC NC VSSQ VDDQ NC NC NC A A A A A A A A A A A A A A A A A A 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 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 MODE A A A A A1 A0 NC / 72M A VSS VDD CY7C1440AV33 (1 Mbit x 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 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 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 MODE A A A A A1 A0 NC / 72M A VSS VDD 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 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 A A CE1 CE2 NC NC BWB BWA CE3 VDD VSS CLK GW BWE OE ADSC ADSP ADV A A A A CE1 CE2 BWD BWC BWB BWA CE3 VDD VSS CLK GW BWE OE ADSC ADSP ADV A A 100-pin TQFP Pinout Page 4 of 27 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY Pin Configurations (continued) 165-ball fBGA CY7C1440AV33 (1 Mbit x 36) 1 A B C D E F G H J K L M N P NC / 288M R 2 A 3 4 5 6 7 8 9 10 11 CE1 BWC BWB CE3 BWE ADSC ADV A NC NC A CE2 BWD BWA CLK GW A NC / 144M NC DQC VDDQ VSS VSS VSS VSS VSS VSS VDDQ VDDQ VSS VDD OE VSS VDD ADSP DQPC DQC VDDQ NC DQB DQPB DQB DQC DQC VDDQ VDD VSS VSS VSS VDD VDDQ DQB DQB DQC DQC NC DQD DQC VDDQ VDD VSS VSS VSS VDD DQB DQB DQC NC DQD VDDQ NC VDDQ VDD VDD VDD VSS VSS VSS VSS VSS VSS VSS VSS VSS VDD VDD VDD VDDQ VDDQ NC VDDQ DQB NC DQA DQB ZZ DQA DQD DQD VDDQ VDD VSS VSS VSS VDD VDDQ DQA DQA DQD DQD VDDQ VDD VSS VSS VSS VDD VDDQ DQA DQA DQD DQPD DQD NC VDDQ VDDQ VDD VSS VSS NC VSS A VSS NC VDD VSS VDDQ VDDQ DQA NC DQA DQPA NC NC / 72M A A TDI A1 TDO A A A A MODE A A A TMS TCK A A A A 8 9 10 11 A A0 CY7C1442AV33 (2 Mbit x 18) 1 2 A B C D E F G H J K L M N P NC / 288M A 3 4 5 6 CE1 CE2 BWB NC CE3 NC A NC BWA NC NC NC DQB VDDQ VSS VDD VSS R VDDQ 7 CLK BWE GW ADSC OE ADV ADSP A VSS VSS VSS VSS VSS VDD VDDQ VSS VDDQ NC NC A NC / 144M DQPA DQA NC DQB VDDQ VDD VSS VSS VSS VDD VDDQ NC DQA NC DQB VDDQ VDD VSS VSS VSS VDD VDDQ NC DQA NC NC DQB DQB NC NC VDDQ NC VDDQ VDD VDD VDD VSS VSS VSS VSS VSS VSS VSS VSS VSS VDD VDD VDD VDDQ NC VDDQ NC NC DQA DQA ZZ NC DQB NC VDDQ VDD VSS VSS VSS VDD VDDQ DQA NC DQB NC VDDQ VDD VSS VSS VSS VDD VDDQ DQA NC DQB DQPB NC NC VDDQ VDDQ VDD VSS VSS NC VSS A VSS NC VDD VSS VDDQ VDDQ DQA NC NC NC NC NC / 72M A A TDI A1 TDO A A A A MODE A A A TMS A0 TCK A A A A Document #: 38-05383 Rev. *B Page 5 of 27 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY Pin Configurations (continued) 209-ball fBGA CY7C1446AV33 (512K × 72) 1 2 3 A DQG DQG B DQG DQG BWSC C DQG DQG D DQG DQG E DQPG F DQC G DQC H 4 6 7 8 9 10 11 CE3 A DQB DQB ADSP ADSC ADV BWSG NC BW A BWSB BWSF DQB DQB BWSH BWSD NC CE1 NC BWSE BWSA DQB DQB VSS NC NC OE GW NC VSS DQB DQB DQPC VDDQ VDDQ VDD VDD VDD VDDQ VDDQ DQPF DQPB DQC VSS VSS VSS NC VSS VSS VSS DQF DQF DQC VDDQ VDDQ VDD NC VDD VDDQ VDDQ DQF DQF DQC DQC VSS VSS VSS NC VSS VSS VSS DQF DQF J DQC DQC VDDQ VDDQ VDD NC VDD VDDQ VDDQ DQF DQF K NC NC CLK NC VSS VSS VSS NC NC NC NC L DQH DQH VDDQ VDDQ VDD NC VDD VDDQ VDDQ DQA DQA M DQH DQH VSS VSS VSS NC VSS VSS VSS DQA DQA N DQH DQH VDDQ VDDQ VDD NC VDD VDDQ VDDQ DQA DQA P DQH DQH VSS VSS VSS ZZ VSS VSS VSS DQA DQA R DQPD DQPH VDDQ VDDQ VDD VDD VDD VDDQ VDDQ T DQD DQD VSS NC NC MODE NC NC VSS U DQD DQD V DQD W DQD A CE2 5 DQPA DQPE DQE DQE NC A A A A A A DQE DQE DQD A A A A1 A A A DQE DQE DQD TMS TDI A A0 A TCK DQE DQE TDO Pin Definitions Name I/O Description A0, A1, A InputSynchronous Address Inputs used to select one of the address locations. Sampled at the rising edge of the CLK if ADSP or ADSC is active LOW, and CE1, CE2, and CE3[2]are sampled active. A1: A0 are fed to the two-bit counter. BWA, BWB, BWC, BWD, BWE, BWF, BWG, BWH InputSynchronous Byte Write Select Inputs, active LOW. Qualified with BWE to conduct byte writes to the SRAM. Sampled on the rising edge of CLK. GW InputSynchronous Global Write Enable Input, active LOW. When asserted LOW on the rising edge of CLK, a global write is conducted (ALL bytes are written, regardless of the values on BWX and BWE). BWE InputSynchronous Byte Write Enable Input, active LOW. Sampled on the rising edge of CLK. This signal must be asserted 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. InputSynchronous Chip Enable 1 Input, active LOW. Sampled on the rising edge of CLK. Used in conjunction with CE2 and CE3 to select/deselect the device. ADSP is ignored if CE1 is HIGH. CE1 is sampled only when a new external address is loaded. CE1 Document #: 38-05383 Rev. *B Page 6 of 27 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY Pin Definitions (continued) I/O Description CE2[2] Name InputSynchronous Chip Enable 2 Input, active HIGH. Sampled on the rising edge of CLK. Used in conjunction with CE1 and CE3 to select/deselect the device. CE2 is sampled only when a new external address is loaded. CE3[2] InputSynchronous Chip Enable 3 Input, active LOW. Sampled on the rising edge of CLK. Used in conjunction with CE1 and CE2 to select/deselect the device. Not available for AJ package version. Not connected for BGA. Where referenced, CE3 is assumed active throughout this document for BGA. CE3 is sampled only when a new external address is loaded. OE InputAsynchronous Output Enable, asynchronous input, active LOW. Controls the direction of the I/O pins. When LOW, 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 InputSynchronous Advance Input signal, sampled on the rising edge of CLK, active LOW. When asserted, it automatically increments the address in a burst cycle. ADSP InputSynchronous Address Strobe from Processor, sampled on the rising edge of CLK, active LOW. When asserted 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 InputSynchronous Address Strobe from Controller, sampled on the rising edge of CLK, active LOW. When asserted 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 InputAsynchronous ZZ “sleep” Input, active HIGH. When asserted HIGH places the device in a non-time-critical “sleep” 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, DQPX I/OSynchronous VDD Power Supply Bidirectional Data I/O lines. As inputs, they feed into an on-chip data register that is triggered by the 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. Power supply inputs to the core of the device. VSS Ground VSSQ VDDQ MODE TDO I/O Ground Ground for the core of the device. Ground for the I/O circuitry. I/O Power Supply Power supply for the I/O circuitry. InputStatic 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 should remain static during device operation. Mode Pin has an internal pull-up. JTAG serial output Synchronous Serial data-out to the JTAG circuit. Delivers data on the negative edge of TCK. If the JTAG feature is not being utilized, this pin should be disconnected. This pin is not available on TQFP packages. TDI JTAG serial input Serial data-In to the JTAG circuit. Sampled on the rising edge of TCK. If the JTAG feature Synchronous is not being utilized, this pin can be disconnected or connected to VDD. This pin is not available on TQFP packages. TMS JTAG serial input Serial data-In to the JTAG circuit. Sampled on the rising edge of TCK. If the JTAG feature Synchronous is not being utilized, this pin can be disconnected or connected to VDD. This pin is not available on TQFP packages. TCK JTAGClock NC – No Connects. Not internally connected to the die NC/72M, NC/144M, NC/288M – No Connects. Not internally connected to the die. NC/72M, NC/144M and NC/288M are address expansion pins are not internally connected to the die. Document #: 38-05383 Rev. *B Clock input to the JTAG circuitry. If the JTAG feature is not being utilized, this pin must be connected to VSS. This pin is not available on TQFP packages. Page 7 of 27 PRELIMINARY CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 Functional Overview then the Write operation is controlled by BWE and BWX signals. 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 2.6ns (250-MHz device). The CY7C1440AV33/CY7C1442AV33/CY7C1446AV33 provides Byte Write capability that is described in the Write Cycle Descriptions table. 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. The CY7C1440AV33/CY7C1442AV33/CY7C1446AV33 supports secondary cache in systems utilizing 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 utilize 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 for 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 deserted 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 propagate through the output register and onto the data bus within 2.6 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. Once the SRAM is deselected at clock rise by the chip select and either ADSP or ADSC signals, its output will tri-state 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, Document #: 38-05383 Rev. *B Because CY7C1440AV33/CY7C1442AV33/CY7C1446AV33 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. Single Write Accesses Initiated by ADSC ADSC Write accesses are initiated when the following conditions are satisfied: (1) ADSC is asserted LOW, (2) ADSP is deserted 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. Because CY7C1440AV33/CY7C1442AV33/CY7C1446AV33 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 CY7C1440AV33/CY7C1442AV33/CY7C1446AV33 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. 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. Sleep Mode 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 prior to entering Page 8 of 27 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY 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) 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) 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 IDDZZ Sleep mode standby current Test Conditions Min. ZZ > VDD – 0.2V tZZS Device operation to ZZ ZZ > VDD – 0.2V tZZREC ZZ recovery time ZZ < 0.2V tZZI ZZ Active to sleep current This parameter is sampled tRZZI ZZ Inactive to exit sleep current This parameter is sampled Max. Unit 100 mA 2tCYC ns 2tCYC ns 2tCYC ns 0 ns Truth Table [3, 4, 5, 6, 7, 8] Operation Add. Used CE1 CE2 ZZ ADSP X CE3 X Deselect Cycle, Power Down None H Deselect Cycle, Power Down None L Deselect Cycle, Power Down None Deselect Cycle, Power Down None ADSC ADV WRITE OE CLK DQ L X L X X X L-H Tri-State L X L L X X X X L-H Tri-State L X H L L X X X X L-H Tri-State 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 Notes: 3. X = “Don't Care.” H = Logic HIGH, L = Logic LOW. 4. 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. 5. The DQ pins are controlled by the current cycle and the OE signal. OE is asynchronous and is not sampled with the clock. 6. CE1, CE2, and CE3 are available only in the TQFP package. BGA package has only 2 chip selects CE1 and CE2. 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 prior to 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 #: 38-05383 Rev. *B Page 9 of 27 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY Truth Table (continued)[3, 4, 5, 6, 7, 8] Operation Add. Used CE1 CE2 ZZ ADSP ADSC ADV X CE3 X READ Cycle, Continue Burst Next X READ Cycle, Continue Burst Next X READ Cycle, Continue Burst Next READ Cycle, Continue Burst Next WRITE Cycle, Continue Burst Next X X WRITE Cycle, Continue Burst Next H X WRITE OE CLK DQ L H H L H L L-H X X L H H L H H L-H Tri-State H X X L X H L H L L-H H X X L X H L H H L-H Tri-State X L H H L L X L-H D X L X H L L X L-H D Q Q Q READ Cycle, Suspend Burst Current X X X L H H H H L L-H 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 Q 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 Truth Table for Read/Write[5,9,10] Function (CY7C1440AV33) Read Read Write Byte A – (DQA and DQPA) Write Byte B – (DQB and DQPB) Write Bytes B, A Write Byte C – (DQC and DQPC) Write Bytes C, A Write Bytes C, B Write Bytes C, B, A Write Byte D – (DQD and DQPD) Write Bytes D, A Write Bytes D, B Write Bytes D, B, A Write Bytes D, C Write Bytes D, C, A Write Bytes D, C, B Write All Bytes Write All Bytes GW H H H H H H H H H H H H H H H H H L BWE H L L L L L L L L L L L L L L L L X BWD X H H H H H H H H L L L L L L L L X BWC X H H H H L L L L H H H H L L L L X BWB X H H L L H H L L H H L L H H L L X BWA X H L H L H L H L H L H L H L H L X Truth Table for Read/Write[5, 9, 10] Function (CY7C1442AV33) Read GW H BWE H BWB X BWA X Read H L H H Write Byte A – (DQA and DQPA) H L H L Write Byte B – (DQB and DQPB) Write Bytes B, A H L L H H L L L Write All Bytes H L L L Write All Bytes L X X X Notes: 9. BWx represents any byte write signal. 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. 10. Table only lists a partial listing of the byte write combinations. Any combination of BWX is valid. Appropriate write will be done based on which byte write is active. Document #: 38-05383 Rev. *B Page 10 of 27 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY Truth Table for Read/Write[5, 9, 10] Function ( CY7C1446AV33) Read Read Write Byte x – (DQx and DQPx) Write All Bytes Write All Bytes GW BWE BWx H H H H L H L L L X X All BW = H L All BW = L X IEEE 1149.1 Serial Boundary Scan (JTAG) Test Access Port (TAP) The CY7C1440AV33/CY7C1442AV33/CY7C1446AV33 incorporates a serial boundary scan test access port (TAP). This part is fully compliant with IEEE Standard 1149.1. The TAP operates using JEDEC-standard 3.3V or 2.5V I/O logic levels. Test Clock (TCK) The CY7C1440AV33/CY7C1442AV33/CY7C1446AV33 contains a TAP controller, instruction register, boundary scan register, bypass register, and ID register. Disabling the JTAG Feature It is possible to operate the SRAM without using the JTAG feature. To disable the TAP controller, TCK must be tied LOW (VSS) to prevent clocking of the device. TDI and TMS are internally pulled up and may be unconnected. They may alternately be connected to VDD through a pull-up resistor. TDO should be left unconnected. Upon power-up, the device will come up in a reset state which will not interfere with the operation of the device. TAP Controller State Diagram 1 TEST-LOGIC RESET RUN-TEST/ IDLE Test MODE SELECT (TMS) The TMS input is used to give commands to the TAP controller and is sampled on the rising edge of TCK. It is allowable to leave this ball unconnected if the TAP is not used. The ball is pulled up internally, resulting in a logic HIGH level. Test Data-In (TDI) The TDI ball is used to serially input information into the registers and can be connected to the input of any of the registers. The register between TDI and TDO is chosen by the instruction that is loaded into the TAP instruction register. TDI is internally pulled up and can be unconnected if the TAP is unused in an application. TDI is connected to the most significant bit (MSB) of any register. (See Tap Controller Block Diagram.) Test Data-Out (TDO) 0 0 The test clock is used only with the TAP controller. All inputs are captured on the rising edge of TCK. All outputs are driven from the falling edge of TCK. 1 SELECT DR-SCAN 1 SELECT IR-SCAN 0 1 0 1 CAPTURE-DR CAPTURE-IR 0 0 SHIFT-DR 0 SHIFT-IR 1 1 EXIT1-IR 0 0 1 0 PAUSE-DR 0 PAUSE-IR 1 0 1 EXIT2-DR 0 EXIT2-IR 1 1 UPDATE-DR 1 The TDO output ball is used to serially clock data-out from the registers. The output is active depending upon the current state of the TAP state machine. The output changes on the falling edge of TCK. TDO is connected to the least significant bit (LSB) of any register. (See Tap Controller State Diagram.) 1 EXIT1-DR 0 1 0 UPDATE-IR 1 0 The 0/1 next to each state represents the value of TMS at the rising edge of TCK. Document #: 38-05383 Rev. *B Page 11 of 27 PRELIMINARY TAP Controller Block Diagram state and is then placed between the TDI and TDO balls when the controller is moved to the Shift-DR state. The EXTEST, SAMPLE/PRELOAD and SAMPLE Z instructions can be used to capture the contents of the I/O ring. 0 Bypass Register 2 1 0 TDI Selection Circuitry Instruction Register 31 30 29 . . . 2 1 0 Selection Circuitry TDO Identification Register x . . . . . 2 1 0 Boundary Scan Register TCK TMS CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 TAP CONTROLLER The Boundary Scan Order tables show the order in which the bits are connected. Each bit corresponds to one of the bumps on the SRAM package. The MSB of the register is connected to TDI, and the LSB is connected to TDO. Identification (ID) Register The ID register is loaded with a vendor-specific, 32-bit code during the Capture-DR state when the IDCODE command is loaded in the instruction register. The IDCODE is hardwired into the SRAM and can be shifted out when the TAP controller is in the Shift-DR state. The ID register has a vendor code and other information described in the Identification Register Definitions table. TAP Instruction Set Overview Performing a TAP Reset A RESET is performed by forcing TMS HIGH (VDD) for five rising edges of TCK. This RESET does not affect the operation of the SRAM and may be performed while the SRAM is operating. At power-up, the TAP is reset internally to ensure that TDO comes up in a High-Z state. TAP Registers Registers are connected between the TDI and TDO balls and allow data to be scanned into and out of the SRAM test circuitry. Only one register can be selected at a time through the instruction register. Data is serially loaded into the TDI ball on the rising edge of TCK. Data is output on the TDO ball on the falling edge of TCK. Instruction Register Three-bit instructions can be serially loaded into the instruction register. This register is loaded when it is placed between the TDI and TDO balls as shown in the Tap Controller Block Diagram. Upon power-up, the instruction register is loaded with the IDCODE instruction. It is also loaded with the IDCODE instruction if the controller is placed in a reset state as described in the previous section. When the TAP controller is in the Capture-IR state, the two least significant bits are loaded with a binary “01” pattern to allow for fault isolation of the board-level serial test data path. Eight different instructions are possible with the three bit instruction register. All combinations are listed in the Instruction Codes table. Three of these instructions are listed as RESERVED and should not be used. The other five instructions are described in detail below. Instructions are loaded into the TAP controller during the Shift-IR state when the instruction register is placed between TDI and TDO. During this state, instructions are shifted through the instruction register through the TDI and TDO balls. To execute the instruction once it is shifted in, the TAP controller needs to be moved into the Update-IR state. IDCODE The IDCODE instruction causes a vendor-specific, 32-bit code to be loaded into the instruction register. It also places the instruction register between the TDI and TDO balls and allows the IDCODE to be shifted out of the device when the TAP controller enters the Shift-DR state. The IDCODE instruction is loaded into the instruction register upon power-up or whenever the TAP controller is given a test logic reset state. SAMPLE Z The SAMPLE Z instruction causes the boundary scan register to be connected between the TDI and TDO pins when the TAP controller is in a Shift-DR state. The SAMPLE Z command puts the output bus into a High-Z state until the next command is given during the “Update IR” state. Bypass Register To save time when serially shifting data through registers, it is sometimes advantageous to skip certain chips. The bypass register is a single-bit register that can be placed between the TDI and TDO balls. This allows data to be shifted through the SRAM with minimal delay. The bypass register is set LOW (VSS) when the BYPASS instruction is executed. Boundary Scan Register The boundary scan register is connected to all the input and bidirectional balls on the SRAM. The boundary scan register is loaded with the contents of the RAM I/O ring when the TAP controller is in the Capture-DR Document #: 38-05383 Rev. *B SAMPLE/PRELOAD SAMPLE/PRELOAD is a 1149.1 mandatory instruction. When the SAMPLE/PRELOAD instructions are loaded into the instruction register and the TAP controller is in the Capture-DR state, a snapshot of data on the inputs and output pins is captured in the boundary scan register. The user must be aware that the TAP controller clock can only operate at a frequency up to 20 MHz, while the SRAM clock operates more than an order of magnitude faster. Because there is a large difference in the clock frequencies, it is possible that during the Capture-DR state, an input or output will undergo a transition. The TAP may then try to capture a signal Page 12 of 27 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY EXTEST while in transition (metastable state). This will not harm the device, but there is no guarantee as to the value that will be captured. Repeatable results may not be possible. The EXTEST instruction enables the preloaded data to be driven out through the system output pins. This instruction also selects the boundary scan register to be connected for serial access between the TDI and TDO in the shift-DR controller state. To guarantee that the boundary scan register will capture the correct value of a signal, the SRAM signal must be stabilized long enough to meet the TAP controller's capture set-up plus hold times (tCS and tCH). The SRAM clock input might not be captured correctly if there is no way in a design to stop (or slow) the clock during a SAMPLE/PRELOAD instruction. If this is an issue, it is still possible to capture all other signals and simply ignore the value of the CK and CK captured in the boundary scan register. EXTEST OUTPUT BUS TRI-STATE IEEE Standard 1149.1 mandates that the TAP controller be able to put the output bus into a tri-state mode. The boundary scan register has a special bit located at , bit #89 (for 165-FBGA package) or bit #138 (for 209-fBGA package). When this scan cell, called the “extest output bus tristate”, is latched into the preload register during the “Update-DR” state in the TAP controller, it will directly control the state of the output (Q-bus) pins, when the EXTEST is entered as the current instruction. When HIGH, it will enable the output buffers to drive the output bus. When LOW, this bit will place the output bus into a High-Z condition. Once the data is captured, it is possible to shift out the data by putting the TAP into the Shift-DR state. This places the boundary scan register between the TDI and TDO pins. PRELOAD allows an initial data pattern to be placed at the latched parallel outputs of the boundary scan register cells prior to the selection of another boundary scan test operation. The shifting of data for the SAMPLE and PRELOAD phases can occur concurrently when required—that is, while data captured is shifted out, the preloaded data can be shifted in. This bit can be set by entering the SAMPLE/PRELOAD or EXTEST command, and then shifting the desired bit into that cell, during the “Shift-DR” state. During “Update-DR”, the value loaded into that shift-register cell will latch into the preload register. When the EXTEST instruction is entered, this bit will directly control the output Q-bus pins. Note that this bit is pre-set HIGH to enable the output when the device is powered-up, and also when the TAP controller is in the “Test-Logic-Reset” state. BYPASS When the BYPASS instruction is loaded in the instruction register and the TAP is placed in a Shift-DR state, the bypass register is placed between the TDI and TDO pins. The advantage of the BYPASS instruction is that it shortens the boundary scan path when multiple devices are connected together on a board. Reserved These instructions are not implemented but are reserved for future use. Do not use these instructions. TAP Timing 1 2 Test Clock (TCK) 3 t TH t TMSS t TMSH t TDIS t TDIH t TL 4 5 6 t CYC Test Mode Select (TMS) Test Data-In (TDI) t TDOV t TDOX Test Data-Out (TDO) DON’T CARE Document #: 38-05383 Rev. *B UNDEFINED Page 13 of 27 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY TAP AC Switching Characteristics Over the operating Range[11, 12] Parameter Description Min. Max. Unit Clock tTCYC TCK Clock Cycle Time tTF TCK Clock Frequency tTH TCK Clock HIGH time 25 ns tTL TCK Clock LOW time 25 ns 50 ns 20 MHz Output Times tTDOV TCK Clock LOW to TDO Valid tTDOX TCK Clock LOW to TDO Invalid 5 ns 0 ns Set-up Times tTMSS TMS Set-up to TCK Clock Rise 5 ns tTDIS TDI Set-up to TCK Clock Rise 5 ns tCS Capture Set-up to TCK Rise 5 ns tTMSH TMS hold after TCK Clock Rise 5 ns tTDIH TDI Hold after Clock Rise 5 ns tCH Capture Hold after Clock Rise 5 ns Hold Times 3.3V TAP AC Test Conditions 2.5V TAP AC Test Conditions Input pulse levels ............................................... VSS to 3.3V Input rise and fall times ...................... ..............................1ns Input pulse levels................................................ .VSS to 2.5V Input rise and fall time .....................................................1 ns Input timing reference levels ...........................................1.5V Input timing reference levels................... ......................1.25V Output reference levels...................................................1.5V Output reference levels .................. ..............................1.25V Test load termination supply voltage...............................1.5V Test load termination supply voltage .................... ........1.25V 3.3V TAP AC Output Load Equivalent 2.5V TAP AC Output Load Equivalent 1.5V 1.25V 50Ω TDO 50Ω TDO Z O= 50Ω 20pF Z O= 50Ω 20pF Notes: 11. tCS and tCH refer to the set-up and hold time requirements of latching data from the boundary scan register. 12. Test conditions are specified using the load in TAP AC test Conditions. tR/tF = ns. Document #: 38-05383 Rev. *B Page 14 of 27 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY TAP DC Electrical Characteristics And Operating Conditions (0°C < TA < +70°C; VDD = 3.135 to 3.6V unless otherwise noted)[13] Parameter VOH1 Description Test Conditions Output HIGH Voltage VOH2 Output HIGH Voltage VOL1 Output LOW Voltage VOL2 Output LOW Voltage VIH 2.4 V 2.0 V IOH = –100 µA VDDQ = 3.3V 2.9 V VDDQ = 2.5V 2.1 V IOL = 8.0 mA VDDQ = 3.3V 0.4 V IOL = 1.0 mA VDDQ = 2.5V 0.4 V VDDQ = 3.3V 0.2 V VDDQ = 2.5V 0.2 V IOL = 100 µA Input Load Current Unit IOH = –4.0 mA, VDDQ = 3.3V Input LOW Voltage IX Max. IOH = –1.0 mA, VDDQ = 2.5V Input HIGH Voltage VIL Min. VDDQ = 3.3V 2.0 VDD + 0.3 V VDDQ = 2.5V 1.7 VDD + 0.3 V VDDQ = 3.3V –0.3 0.8 V VDDQ = 2.5V –0.3 0.7 V –5 5 µA GND < VIN < VDDQ Identification Register Definitions CY7C1440AV33 (1 Mbit x 36) Instruction Field CY7C1442AV33 (2 Mbit x 18) CY7C1446AV33 (512K x 72) Description Describes the version number. Revision Number (31:29) 000 000 000 Device Depth (28:24)[14] 01011 01011 01011 000000 000000 000000 Architecture/Memory Type(23:18) Bus Width/Density(17:12) Cypress JEDEC ID Code (11:1) ID Register Presence Indicator (0) Reserved for Internal Use Defines memory type and architecture 100111 010111 110111 00000110100 00000110100 00000110100 Defines width and density 1 1 1 Allows unique identification of SRAM vendor. Indicates the presence of an ID register. Scan Register Sizes Register Name Bit Size (x36) Bit Size (x18) Bit Size (x72) Instruction 3 3 3 Bypass 1 1 1 ID 32 32 32 Boundary Scan Order–165FBGA 89 89 – Boundary Scan Order–209fBGA – – 138 Identification Codes Instruction Code Description EXTEST 000 Captures the I/O ring contents. IDCODE 001 Loads the ID register with the vendor ID code and places the register between TDI and TDO. This operation does not affect SRAM operations. SAMPLE Z 010 Captures I/O ring contents. Places the boundary scan register between TDI and TDO. Forces all SRAM output drivers to a High-Z state. RESERVED 011 Do Not Use: This instruction is reserved for future use. Notes: 13. All voltages referenced to VSS (GND). 14. Bit #24 is “1” in the ID Register Definitions for both 2.5V and 3.3V versions of this device. Document #: 38-05383 Rev. *B Page 15 of 27 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY Identification Codes (continued) Instruction Code Description SAMPLE/PRELOAD 100 Captures I/O ring contents. Places the boundary scan register between TDI and TDO. Does not affect SRAM operation. RESERVED 101 Do Not Use: This instruction is reserved for future use. RESERVED 110 Do Not Use: This instruction is reserved for future use. BYPASS 111 Places the bypass register between TDI and TDO. This operation does not affect SRAM operations. 165-Ball fBGA Boundary Scan Order [15,16] 165-Ball fBGA Boundary Scan Order (continued)[15,16] CY7C1440AV33 (1 Mbit x 36),CY7C1442AV33 (2 Mbit x 18) CY7C1440AV33 (1 Mbit x 36),CY7C1442AV33 (2 Mbit x 18) BIT# BALL ID BIT# BALL ID BIT# BALL ID BIT# BALL ID G11 69 K1 1 N6 46 B5 24 2 47 F11 70 L1 48 A5 A4 25 3 N7 N10 26 E11 71 M1 4 P11 49 B4 27 D11 72 J2 G10 73 K2 5 P8 50 B3 28 6 R8 51 A3 29 F10 74 L2 E10 75 M2 7 R9 52 A2 30 8 P9 53 B2 31 D10 76 N1 C11 77 N2 9 P10 54 C2 32 10 R10 55 B1 33 A11 78 P1 B11 79 R1 11 R11 56 A1 34 12 H11 57 C1 35 A10 80 R2 B10 81 P3 13 N11 58 D1 36 14 M11 59 E1 37 A9 82 R3 B9 83 P2 15 L11 60 F1 38 16 K11 61 G1 39 C10 84 R4 A8 85 P4 17 J11 62 D2 40 18 M10 63 E2 41 B8 86 N5 A7 87 P6 19 L10 64 F2 42 20 K10 65 G2 43 B7 88 R6 B6 89 Internal A6 21 J10 66 H1 44 22 H9 67 H3 45 23 H10 68 J1 Notes: 15. Balls that are NC (No Connect) are preset LOW. 16. Bit# 89 is preset HIGH. Document #: 38-05383 Rev. *B Page 16 of 27 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY 209-Ball fBGA Boundary Scan Order [15,17] 209-Ball fBGA Boundary Scan Order (continued) [15,17] CY7C1446AV33 (512K x 72) CY7C1446AV33 (512K x 72) BIT# BALL ID BIT# BALL ID BIT# 1 W6 42 H11 36 F6 77 C5 43 H10 37 K8 78 D5 44 G11 38 K9 79 D4 K10 80 C4 2 3 V6 U6 BALL ID BIT# BALL ID 4 W7 45 G10 39 5 V7 46 F11 40 J11 81 A4 J10 82 B4 6 U7 47 F10 41 7 T7 48 E10 83 C3 111 L1 B3 112 M2 8 V8 49 E11 84 9 U8 50 D11 85 A3 113 M1 A2 114 N2 10 T8 51 D10 86 11 V9 52 C11 87 A1 115 N1 B2 116 P2 12 U9 53 C10 88 13 P6 54 B11 89 B1 117 P1 C2 118 R2 14 W11 55 B10 90 15 W10 56 A11 91 C1 119 R1 D2 120 T2 16 V11 57 A10 92 17 V10 58 C9 93 D1 121 T1 E1 122 U2 18 U11 59 B9 94 19 U10 60 A9 95 E2 123 U1 F2 124 V2 20 T11 61 D7 96 21 T10 62 C8 97 F1 125 V1 98 G1 126 W2 22 R11 63 B8 23 R10 64 A8 99 G2 127 W1 H2 128 T6 24 P11 65 D8 100 25 P10 66 C7 101 H1 129 U3 J2 130 V3 26 N11 67 B7 102 27 N10 68 A7 103 J1 131 T4 K1 132 T5 28 M11 69 D6 104 29 M10 70 G6 105 N6 133 U4 H6 C6 106 K3 134 V4 107 K4 135 5W K6 136 5V 30 L11 71 31 L10 72 32 K11 73 B6 108 33 M6 74 A6 109 K2 137 5U 110 L2 138 Internal 34 L6 75 A5 35 J6 76 B5 Note: 17. Bit# 138 is preset HIGH. Document #: 38-05383 Rev. *B Page 17 of 27 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY Maximum Ratings Current into Outputs (LOW)......................................... 20 mA (Above which the useful life may be impaired. For user guidelines, not tested.) Storage Temperature ................................. –65°C to +150°C Ambient Temperature with Power Applied............................................. –55°C to +125°C Static Discharge Voltage.......................................... > 2001V (per MIL-STD-883, Method 3015) Latch-up Current.................................................... > 200 mA Operating Range Supply Voltage on VDD Relative to GND........ –0.3V to +4.6V Range Ambient Temperature DC Voltage Applied to Outputs in Tri-State........................................... –0.5V to VDDQ + 0.5V Commercial 0°C to +70°C VDD VDDQ 3.3V – 5%/+10% 2.5V – 5% to VDD DC Input Voltage....................................–0.5V to VDD + 0.5V Electrical Characteristics Over the Operating Range[18, 19] Parameter Description Test Conditions VDD Power Supply Voltage VDDQ I/O Supply Voltage VOH Output HIGH Voltage VOL Output LOW Voltage VDDQ = 3.3V, VDD = Max.., IOL = 8.0 mA VIH Input HIGH Voltage[18] VDDQ = 3.3V VIL Input LOW Voltage[18] IX Input Load Current except ZZ and MODE GND ≤ VI ≤ VDDQ Min. 3.135 3.6 V 3.135 VDD V VDDQ = 2.5V 2.375 2.625 VDDQ = 3.3V, VDD = Min., IOH = –4.0 mA 2.4 VDDQ = 2.5V, VDD = Min., IOH = –1.0 mA 2.0 V V V 0.4 V 0.4 V 2.0 VDD + 0.3V V VDDQ = 2.5V 1.7 VDD + 0.3V V VDDQ = 3.3V –0.3 0.8 V VDDQ = 2.5V –0.3 0.7 V –5 5 µA Input = VDD 30 Input = VSS Output Leakage Current GND ≤ VI ≤ VDDQ, Output Disabled IDD VDD Operating Supply Current VDD = Max., IOUT = 0 mA, f = fMAX = 1/tCYC Automatic CE Power-down Current—TTL Inputs VDD = Max, Device Deselected, VIN ≥ VIH or VIN ≤ VIL f = fMAX = 1/tCYC µA µA –30 5 µA 5 µA 4.0-ns cycle, 250 MHz 475 mA 5.0-ns cycle, 200 MHz 425 mA 6.0-ns cycle, 167 MHz 375 mA 4.0-ns cycle, 250 MHz 225 mA 5.0-ns cycle, 200 MHz 225 mA 6.0-ns cycle, 167 MHz 225 mA All speeds 100 mA Input = VDD IOZ µA –5 Input Current of MODE Input = VSS ISB1 Unit VDDQ = 3.3V VDDQ = 2.5V, VDD = Max.., IOL = 1.0 mA Input Current of ZZ Max. –5 ISB2 Automatic CE VDD = Max, Device Deselected, Power-down VIN ≤ 0.3V or VIN > VDDQ – 0.3V, Current—CMOS Inputs f = 0 ISB3 Automatic CE VDD = Max, Device Deselected, or 4.0-ns cycle, 250 MHz Power-down VIN ≤ 0.3V or VIN > VDDQ – 0.3V 5.0-ns cycle, 200 MHz Current—CMOS Inputs f = fMAX = 1/tCYC 6.0-ns cycle, 167 MHz 200 mA 200 mA 200 mA Automatic CE Power-down Current—TTL Inputs 110 mA ISB4 VDD = Max, Device Deselected, VIN ≥ VIH or VIN ≤ VIL, f = 0 All speeds Shaded areas contain advance information. Notes: 18. Overshoot: VIH(AC) < VDD +1.5V (Pulse width less than tCYC/2), undershoot: VIL(AC) > –2V (Pulse width less than tCYC/2). 19. TPower-up: Assumes a linear ramp from 0V to VDD(min.) within 200 ms. During this time VIH < VDD and VDDQ < VDD\ Document #: 38-05383 Rev. *B Page 18 of 27 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY Thermal Resistance[20] Parameter Description Test Conditions ΘJA Thermal Resistance (Junction to Ambient) ΘJC Thermal Resistance (Junction to Case) Test conditions follow standard test methods and procedures for measuring thermal impedance, per EIA / JESD51. 100 TQFP Package 165 BGA Package 209 fBGA Package Unit 25.21 20.8 25.31 °C/W 2.28 3.2 4.48 °C/W 209 fBGA Package Unit Capacitance[20] Parameter Description 100 TQFP Package Test Conditions CIN Input Capacitance CCLK Clock Input Capacitance CI/O Input/Output Capacitance TA = 25°C, f = 1 MHz, VDD = 3.3V. VDDQ = 2.5V 165 BGA Package 6.5 5 5 pF 3 5 5 pF 5.5 7 7 pF AC Test Loads and Waveforms 3.3V I/O Test Load R = 317Ω 3.3V OUTPUT ALL INPUT PULSES VDDQ OUTPUT RL = 50Ω Z0 = 50Ω 10% GND 5 pF R = 351Ω INCLUDING JIG AND SCOPE VT = 1.5V (a) 90% 10% 90% ≤ 1 ns ≤ 1 ns (b) (c) 2.5V I/O Test Load 2.5V OUTPUT R = 1667Ω Z0 = 50Ω 5 pF INCLUDING JIG AND SCOPE VT = 1.25V (a) ALL INPUT PULSES VDDQ OUTPUT RL = 50Ω 10% 90% 10% 90% GND R = 1538Ω ≤ 1 ns ≤ 1 ns (b) (c) Switching Characteristics Over the Operating Range [25, 26] 250 MHz Parameter tPOWER Description VDD(Typical) to the first Access[21] Min. Max 200 MHz Min. Max. 167 MHz Min. Max Unit 1 1 1 ms Clock tCYC Clock Cycle Time 4.0 5 6 ns tCH Clock HIGH 1.5 2.0 2.4 ns tCL Clock LOW 1.5 2.0 2.4 ns Output Times tCO Data Output Valid After CLK Rise tDOH Data Output Hold After CLK Rise 1.0 1.5 1.5 ns tCLZ Clock to Low-Z[22, 23, 24] 1.0 1.3 1.5 ns 2.6 3.2 3.4 ns Notes: 20. Tested initially and after any design or process change that may affect these parameters. 21. This part has a voltage regulator internally; tPOWER is the time that the power needs to be supplied above VDD(minimum) initially before a read or write operation can be initiated. 22. tCHZ, tCLZ,tOELZ, and tOEHZ are specified with AC test conditions shown in (b) of AC Test Loads. Transition is measured ± 200 mV from steady-state voltage. 23. At any given 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 prior to Low-Z under the same system conditions 24. This parameter is sampled and not 100% tested. 25. Timing reference level is 1.5V when VDDQ = 3.3V and is 1.25V when VDDQ = 2.5V. 26. Test conditions shown in (a) of AC Test Loads unless otherwise noted. Document #: 38-05383 Rev. *B Page 19 of 27 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY Switching Characteristics Over the Operating Range (continued)[25, 26] 250 MHz Parameter Description Min. Max tCHZ Clock to High-Z [22, 23, 24] 2.6 tOEV OE LOW to Output Valid 2.6 [22, 23, 24] tOELZ OE LOW to Output Low-Z tOEHZ OE HIGH to Output High-Z[22, 23, 24] 0 200 MHz Min. Unit 3.0 3.4 ns 3.0 3.4 ns 3.4 ns 0 2.6 167 MHz Max Max. Min. 0 3.0 ns Set-up Times tAS Address Set-up Before CLK Rise 1.2 1.4 1.5 ns tADS ADSC, ADSP Set-up Before CLK Rise 1.2 1.4 1.5 ns tADVS ADV Set-up Before CLK Rise 1.2 1.4 1.5 ns tWES GW, BWE, BWX Set-up Before CLK Rise 1.2 1.4 1.5 ns tDS Data Input Set-up Before CLK Rise 1.2 1.4 1.5 ns tCES Chip Enable Set-up Before CLK Rise 1.2 1.4 1.5 ns tAH Address Hold After CLK Rise 0.3 0.4 0.5 ns tADH ADSP, ADSC Hold After CLK Rise 0.3 0.4 0.5 ns tADVH ADV Hold After CLK Rise 0.3 0.4 0.5 ns tWEH GW, BWE, BWX Hold After CLK Rise 0.3 0.4 0.5 ns tDH Data Input Hold After CLK Rise 0.3 0.4 0.5 ns tCEH Chip Enable Hold After CLK Rise 0.3 0.4 0.5 ns Hold Times Shaded areas contain advance information. Document #: 38-05383 Rev. *B Page 20 of 27 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY Switching Waveforms Read Cycle Timing[27] t CYC CLK t CH t ADS t CL t ADH ADSP tADS tADH ADSC tAS tAH A1 ADDRESS A2 tWES A3 Burst continued with new base address tWEH GW, BWE, BWx tCES Deselect cycle tCEH CE tADVS tADVH ADV ADV suspends burst. OE t OEHZ t CLZ Data Out (Q) Q(A1) High-Z tOEV tCO t OELZ tDOH 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: 27. On this diagram, when CE is LOW: CE1 is LOW, CE2 is HIGH and CE3 is LOW. When CE is HIGH: CE1 is HIGH or CE2 is LOW or CE3 is HIGH. Document #: 38-05383 Rev. *B Page 21 of 27 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY Switching Waveforms (continued) Write Cycle Timing[27, 28] t CYC CLK tCH tADS tCL tADH ADSP tADS ADSC extends burst tADH tADS tADH ADSC tAS tAH A1 ADDRESS A2 A3 Byte write signals are ignored for first cycle when ADSP initiates burst tWES tWEH BWE, BWX tWES tWEH GW tCES tCEH CE t t ADVS ADVH ADV ADV suspends burst OE tDS 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 Note: 28. Full width write can be initiated by either GW LOW; or by GW HIGH, BWE LOW and BWX LOW. Document #: 38-05383 Rev. *B Page 22 of 27 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY Switching Waveforms (continued) Read/Write Cycle Timing[27, 29, 30] tCYC CLK tCL tCH tADS tADH tAS tAH ADSP ADSC ADDRESS A1 A2 A3 A4 A5 A6 D(A5) D(A6) tWES tWEH BWE, BWX tCES tCEH CE ADV OE tDS tCO tDH tOELZ Data In (D) High-Z tCLZ Data Out (Q) High-Z Q(A1) Back-to-Back READs tOEHZ D(A3) Q(A2) Q(A4) Single WRITE Q(A4+1) Q(A4+2) BURST READ DON’T CARE Q(A4+3) Back-to-Back WRITEs UNDEFINED Notes: 29. The data bus (Q) remains in high-Z following a Write cycle, unless a new read access is initiated by ADSP or ADSC. 30. GW is HIGH. Document #: 38-05383 Rev. *B Page 23 of 27 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY Switching Waveforms (continued) ZZ Mode Timing[32, 33] CLK t ZZ ZZ I t ZZREC t ZZI SUPPLY I DDZZ t RZZI ALL INPUTS (except ZZ) DESELECT or READ Only Outputs (Q) High-Z DON’T CARE Ordering Information Speed (MHz) 250 200 Ordering Code CY7C1440AV33-250AXC CY7C1442AV33-250AXC Package Name Part and Package Type Operating Range A101 Lead-Free 100-lead 14 × 20 × 1.4 mm Thin Quad Flat Pack Commercial CY7C1440AV33-250BZC CY7C1442AV33-250BZC BB165C 165-ball Fine Pitch Ball Grid Array (15 x 17 x 1.4 mm) CY7C1446AV33-250BGC BB209A 209-ball Ball Grid Array (14 × 22 × 1.76 mm) CY7C1440AV33-250BZXC CY7C1442AV33-250BZXC BB165C Lead-Free 165-ball Fine Pitch Ball Grid Array (15 x 17 x 1.4 mm) CY7C1446AV33-250BGXC BB209A Lead-Free 209-ball Ball Grid Array (14 × 22 × 1.76 mm) CY7C1440AV33-200AXC CY7C1442AV33-200AXC CY7C1440AV33-200BZC A101 Lead-Free 100-lead 14 × 20 × 1.4 mm Thin Quad Flat Pack BB165C 165-ball Fine Pitch Ball Grid Array (15 x 17 x 1.4 mm) CY7C1442AV33-200BZC CY7C1446AV33-200BGC BB209A 209-ball Ball Grid Array (14 × 22 × 1.76 mm) CY7C1440AV33-200BZXC CY7C1442AV33-200BZXC BB165C Lead-Free 165-ball Fine Pitch Ball Grid Array (15 x 17 x 1.4 mm) CY7C1446AV33-200BGXC BB209A Lead-Free 209-ball Ball Grid Array (14 × 22 × 1.76 mm) Shaded areas contain advance information. Please contact your local sales representative for availability of these parts. 32. Device must be deselected when entering ZZ mode. See Cycle Descriptions table for all possible signal conditions to deselect the device. 33. DQs are in high-Z when exiting ZZ sleep mode. Document #: 38-05383 Rev. *B Page 24 of 27 CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 PRELIMINARY Ordering Information (continued) Speed (MHz) Ordering Code 167 Package Name Part and Package Type Operating Range A101 Lead-Free 100-lead 14 × 20 × 1.4 mm Thin Quad Flat Pack Commercial CY7C1440AV33-167AXC CY7C1442AV33-167AXC CY7C1440AV33-167BZC CY7C1442AV33-167BZC BB165C 165-ball Fine Pitch Ball Grid Array (15 x 17 x 1.4 mm) CY7C1446AV33-167BGC BB209A 209-ball Ball Grid Array (14 × 22 × 1.76 mm) CY7C1440AV33-167BZXC CY7C1442AV33-167BZXC BB165C Lead-Free165-ball Fine Pitch Ball Grid Array (15 x 17 x 1.4 mm) CY7C1446AV33-167BGXC BB209A Lead-Free 209-ball Ball Grid Array (14 × 22 × 1.76 mm) Package Diagrams 165-Ball FBGA (15 x 17 x 1.40 mm) BB165C PIN 1 CORNER BOTTOM VIEW TOP VIEW Ø0.05 M C PIN 1 CORNER Ø0.25 M C A B Ø0.45±0.05(165X) 1 2 3 4 5 6 7 8 9 10 11 11 10 9 8 7 6 5 4 3 2 1 A B B C C 1.00 A D D F F G G H J 14.00 E 17.00±0.10 E H J K L L 7.00 K M M N N P P R R A 1.00 5.00 0.35 0.15 C +0.05 -0.10 0.53±0.05 0.25 C 10.00 B 15.00±0.10 0.15(4X) SEATING PLANE 1.40 MAX. 0.36 C 51-85165-*A Document #: 38-05383 Rev. *B Page 25 of 27 PRELIMINARY CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 Package Diagrams (continued) 209-Ball FBGA (14 x 22 x 1.76 mm) BB209A 51-85167-** i486 is a trademark, and Intel and Pentium are registered trademarks of Intel Corporation. PowerPC is a trademark of IBM Corporation. All product and company names mentioned in this document are the trademarks of their respective holders. Document #: 38-05383 Rev. *B Page 26 of 27 © Cypress Semiconductor Corporation, 2004. 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. PRELIMINARY CY7C1440AV33 CY7C1442AV33 CY7C1446AV33 Document History Page Document Title: CY7C1440AV33/CY7C1442AV33/CY7C1446AV33 36-Mbit (1M x 36/2M x 18/512K x 72) Pipelined Sync SRAM Document Number: 38-05383 REV. ECN NO. Issue Date Orig. of Change Description of Change ** 124437 03/04/03 CJM New data sheet *A 254910 See ECN SYT Part number changed from previous revision. New and old part number differ by the letter "A” Modified Functional Block diagrams Modified switching waveforms Added Boundary scan information Added Footnote #14 (32-Bit Vendor ID Code changed) Added IDD, IX and ISB values in the DC Electrical Characteristics Added tPOWER specifications in Switching Characteristics table Removed 119 PBGA package Changed 165 FBGA package from BB165C (15 x 17 x 1.20 mm) to BB165 (15 x 17 x 1.40 mm) Changed 209-Lead PBGA BG209 (14 x 22 x 2.20 mm) to BB209A (14 x 22 x 1.76 mm) *B 306335 See ECN SYT Changed H9 pin from VSSQ to VSS on the Pin Configuration table for 209 FBGA on Page # 6 Changed tCO from 3.0 to 3.2 ns and tDOH from 1.3 ns to 1.5 ns for 200 Mhz speed bin on the Switching Characteristics table on Page # 19 Changed ΘJA and ΘJC from TBD to 25.21 and 2.58 °C/W respectively for TQFP Package on Pg # 19 Replaced ΘJA and ΘJC from TBD to respective Values for 165 BGA and 209 fBGA Packages on the Thermal Resistance Table Added lead-free information for 100-Pin TQFP, 165 FBGA and 209 fBGA Packages . Changed IDD from 450, 400 and 350 mA to 475, 425 and 375 mA for frequencies of 250, 200 and 167 MHz respectively Changed ISB1 from 190, 180 and 170 mA to 225 mA for frequencies of 250, 200 and 167 MHz respectively Changed ISB2 from 80 to 100 mA Changed ISB3 from 180, 170 and 160 mA to 200 mA for frequencies of 250, 200 and 167 MHz respectively Changed ISB4 from 100 to 110 mA Document #: 38-05383 Rev. *B Page 27 of 27