CY7C1049CV33 4-Mbit (512 K × 8) Static RAM 4-Mbit (512 K × 8) Static RAM Features Functional Description ■ Temperature ranges ❐ Commercial: 0 °C to 70 °C The CY7C1049CV33 is a high performance CMOS Static RAM organized as 524,288 words by eight bits. Easy memory expansion is provided by an active LOW Chip Enable (CE), an active LOW Output Enable (OE), and three-state drivers. Writing to the device is accomplished by taking Chip Enable (CE) and Write Enable (WE) inputs LOW. Data on the eight I/O pins (I/O0 through I/O7) is then written into the location specified on the address pins (A0 through A18). ■ High speed ❐ tAA = 8 ns ■ Low active power ❐ 360 mW (max) ■ 2.0 V data retention ■ Automatic power down when deselected ■ TTL-compatible inputs and outputs ■ Easy memory expansion with CE and OE features Reading from the device is accomplished by taking Chip Enable (CE) and Output Enable (OE) LOW while forcing Write Enable (WE) HIGH. Under these conditions, the contents of the memory location specified by the address pins appear on the I/O pins. The eight input and output pins (I/O0 through I/O7) are placed in a high impedance state when the device is deselected (CE HIGH), the outputs are disabled (OE HIGH), or during a write operation (CE LOW, and WE LOW). The CY7C1049CV33 is available in standard 44-pin TSOP II package with center power and ground (revolutionary) pinout. For best practice recommendations, refer to the Cypress application note AN1064, SRAM System Guidelines. Logic Block Diagram SENSE AMPS IO1 512K x 8 ARRAY IO2 IO3 IO4 IO5 IO6 CE • IO7 POWER DOWN A18 A17 A15 A13 A14 OE A16 COLUMN DECODER WE Cypress Semiconductor Corporation Document #: 38-05006 Rev. *K IO0 INPUT BUFFER ROW DECODER A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 198 Champion Court • San Jose, CA 95134-1709 •408-943-2600 Revised March 02, 2011 [+] Feedback CY7C1049CV33 Contents Selection Guide ................................................................ 3 Pin Configuration ............................................................. 3 Pin Definitions .................................................................. 3 Maximum Ratings ............................................................. 4 Operating Range ............................................................... 4 Electrical Characteristics ................................................. 4 Capacitance ...................................................................... 4 Thermal Resistance .......................................................... 4 AC Switching Characteristics ......................................... 6 Switching Waveforms ...................................................... 7 Truth Table ........................................................................ 8 Document #: 38-05006 Rev. *K Ordering Information ....................................................... 9 Ordering Code Definitions ........................................... 9 Package Diagram ........................................................... 10 Acronyms ........................................................................ 11 Document Conventions ................................................. 11 Units of Measure ....................................................... 11 Document History Page ................................................. 12 Sales, Solutions, and Legal Information ...................... 13 Worldwide Sales and Design Support ....................... 13 Products .................................................................... 13 PSoC Solutions ......................................................... 13 Page 2 of 13 [+] Feedback CY7C1049CV33 Selection Guide Description -8 Unit 8 ns Maximum Operating Current 100 mA Maximum CMOS Standby Current 10 mA Maximum Access Time Pin Configuration Figure 1. 44-pin TSOP II (Top View) NC NC A0 A1 A2 A3 A4 CE I/O0 I/O1 VCC VSS I/O2 I/O3 WE A5 A6 A7 A8 A9 NC NC 1 44 2 3 43 42 4 41 40 39 38 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 NC NC NC A18 A17 A16 A15 OE I/O7 I/O6 VSS VCC I/O5 I/O4 A14 A13 A12 A11 A10 NC NC NC Pin Definitions Pin Name 44-pin TSOP II Pin Number A0–A18 3–7, 16–20, 26–30, 38–41 Input I/O0–I/O7 9, 10, 13, 14, 31, 32, 35, 36 Input/Output Bidirectional data I/O lines. Used as input or output lines depending on operation. NC[1] 1, 2, 21, 22, 23, 24, 25, 42, 43, 44 No Connect No connects. This pin is not connected to the die. WE 15 Input/Control Write Enable input, active LOW. When selected LOW, a WRITE is conducted. When selected HIGH, a READ is conducted. CE 8 Input/Control Chip Enable input, active LOW. When LOW, selects the chip. When HIGH, deselects the chip. OE 37 Input/Control Output Enable, active LOW. Controls the direction of the I/O pins. When LOW, the I/O pins are allowed to behave as outputs. When deasserted HIGH, I/O pins are three-stated, and act as input data pins. VSS, GND 12, 34 Ground VCC 11, 33 Power Supply I/O Type Description Address inputs used to select one of the address locations. Ground for the device. Should be connected to ground of the system. Power supply inputs to the device. Note 1. NC pins are not connected on the die. Document #: 38-05006 Rev. *K Page 3 of 13 [+] Feedback CY7C1049CV33 Maximum Ratings Exceeding maximum ratings may impair the useful life of the device. These user guidelines are not tested. Storage Temperature ............................... –65 C to +150 C Voltage Applied to Outputs in High Z State[2] .................................. –0.5 V to VCC + 0.5 V Input Voltage[2] .................................... –0.5 V to VCC + 0.5 V Current into Outputs (LOW) ........................................ 20 mA Operating Range Ambient Temperature with Power Applied .......................................... –55 C to +125 C Range Supply Voltage on VCC to Relative GND[2]–0.5 V to +4.6 VDC Ambient Temperature VCC 0 C to +70 C 3.3 V 0.3 V Commercial Electrical Characteristics Over the Operating Range Parameter Description Test Conditions VOH Output HIGH Voltage VCC = Min; IOH = –4.0 mA VOL Output LOW Voltage VCC = Min; IOL = 8.0 mA VIH Input HIGH Voltage Voltage[2] -8 Unit Min Max 2.4 – V – 0.4 V 2.0 VCC + 0.3 V VIL Input LOW –0.3 0.8 V IIX Input Load Current GND < VI < VC –1 +1 A ICC VCC Operating Supply Current VCC = Max, f = fMAX = 1/tRC – 100 mA ISB1 Max. VCC, CE > VIH, VIN > VIH or VIN < VIL, f = fMAX Automatic CE Power Down Current —TTL Inputs – 40 mA ISB2 Automatic CE Max. VCC, CE > VCC – 0.3 V, VIN > VCC – 0.3 V, Power Down Current or VIN < 0.3 V, f = 0 —CMOS Inputs – 10 mA Capacitance Tested initially and after any design or process changes that may affect these parameters. Parameter[3] Description CIN Input Capacitance COUT I/O Capacitance Test Conditions TA = 25 C, f = 1 MHz, VCC = 3.3 V Max Unit 8 pF 8 pF Thermal Resistance Tested initially and after any design or process changes that may affect these parameters. Parameter[3] Description JA Thermal Resistance (Junction to Ambient) JC Thermal Resistance (Junction to Case) Test Conditions Test conditions follow standard test methods and procedures for measuring thermal impedance, per EIA / JESD51. 44-pin TSOP-II Unit 41.66 °C/W 10.56 °C/W Notes 2. VIL (min) = –2.0 V and VIH(max) = VCC + 0.5 V for pulse durations of less than 20 ns. 3. Tested initially and after any design or process changes that may affect these parameters. Document #: 38-05006 Rev. *K Page 4 of 13 [+] Feedback CY7C1049CV33 Figure 2. AC Test Loads and Waveforms [4] 10-ns devices: 12-, 15-ns devices: Z = 50 50 * CAPACITIVE LOAD CONSISTS OF ALL COMPONENTS OF THE TEST ENVIRONMENT 3.0 V GND Rise Time: 1 V/ns R 317 3.3 V OUTPUT 30 pF* OUTPUT (a) (b) High Z characteristics: ALL INPUT PULSES 90% 10% (c) R 317 3.3 V 90% 10% R2 351 30 pF 1.5 V Fall Time: 1 V/ns OUTPUT R2 351 5 pF (d) Note 4. AC characteristics (except High Z) for 10 ns parts are tested using the load conditions shown in Figure 2 (a). All other speeds are tested using the Thevenin load shown in Figure 2 (b). High Z characteristics are tested for all speeds using the test load shown in Figure 2 (d). Document #: 38-05006 Rev. *K Page 5 of 13 [+] Feedback CY7C1049CV33 AC Switching Characteristics Over the Operating Range [5] -8 Parameter Description Min Max Unit 100 – s Read Cycle tpower[6] VCC(typical) to the first access tRC Read Cycle Time 8 – ns tAA Address to Data Valid – 8 ns tOHA Data Hold from Address Change 3 – ns tACE CE LOW to Data Valid – 8 ns tDOE OE LOW to Data Valid – 5 ns tLZOE OE LOW to Low Z 0 – ns – 4 ns 3 – ns – 4 ns Z[7, 8] tHZOE OE HIGH to High tLZCE CE LOW to Low Z[8] Z[7, 8] tHZCE CE HIGH to High tPU CE LOW to Power Up 0 – ns tPD CE HIGH to Power Down – 8 ns tWC Write Cycle Time 8 – ns tSCE CE LOW to Write End 6 – ns tAW Address Setup to Write End 6 – ns tHA Address Hold from Write End 0 – ns tSA Address Setup to Write Start 0 – ns tPWE WE Pulse Width 6 – ns tSD Data Setup to Write End 4 – ns tHD Data Hold from Write End 0 – ns WE HIGH to Low Z[8] 3 – ns WE LOW to High Z[7, 8] – 4 ns Write Cycle [9, 10] tLZWE tHZWE Notes 5. Test conditions assume signal transition time of 3 ns or less, timing reference levels of 1.5 V, input pulse levels of 0 to 3.0 V. 6. tPOWER gives the minimum amount of time that the power supply should be at stable, typical VCC values until the first memory access can be performed. 7. tHZOE, tHZCE, and tHZWE are specified with a load capacitance of 5 pF as in part (d) of AC Test Loads. Transition is measured ±500 mV from steady-state voltage. 8. At any temperature and voltage condition, tHZCE is less than tLZCE, tHZOE is less than tLZOE, and tHZWE is less than tLZWE for any device. 9. The internal Write time of the memory is defined by the overlap of CE LOW, and WE LOW. CE and WE must be LOW to initiate a Write, and the transition of either of these signals can terminate the Write. The input data setup and hold timing should be referenced to the leading edge of the signal that terminates the Write. 10. The minimum Write cycle time for Write Cycle No. 3 (WE controlled, OE LOW) is the sum of tHZWE and tSD. Document #: 38-05006 Rev. *K Page 6 of 13 [+] Feedback CY7C1049CV33 Switching Waveforms Figure 3. Read Cycle No. 1 (Address Transition Controlled) [11, 12] tRC RC ADDRESS tOHA DATA OUT tAA PREVIOUS DATA VALID DATA VALID Figure 4. Read Cycle No. 2 (OE Controlled) [12, 13] ADDRESS tRC CE tACE OE tHZOE tDOE tHZCE tLZOE HIGH IMPEDANCE DATA OUT DATA VALID tLZCE tPD tPU VCC SUPPLY CURRENT HIGH IMPEDANCE 50% 50% ICC ISB Figure 5. Write Cycle No. 1 (WE Controlled, OE HIGH During Write) [14, 15] tWC ADDRESS tSCE CE tAW tSA tHA tPWE WE OE tSD DATA I/O NOTE 16 tHD DATA VALID tHZOE Notes 11. Device is continuously selected. OE, CE = VIL. 12. WE is HIGH for read cycles. 13. Address valid before or similar to CE transition LOW. 14. Data I/O is high impedance if OE = VIH. 15. If CE goes HIGH simultaneously with WE HIGH, the output remains in high impedance state. 16. During this period, the I/Os are in output state. Do not apply input signals. Document #: 38-05006 Rev. *K Page 7 of 13 [+] Feedback CY7C1049CV33 Switching Waveforms (continued) Figure 6. Write Cycle No. 2 (WE Controlled, OE LOW) [17] tWC ADDRESS tSCE CE tAW tSA tHA tPWE WE tSD NOTE 18 DATA I/O tHD DATA VALID tLZWE tHZWE Truth Table CE OE WE I/O0–I/O7 H X X High Z Mode Power Down Power Standby (ISB) L L H Data Out Read Active (ICC) L X L Data In Write Active (ICC) L H H High Z Selected, Outputs Disabled Active (ICC) Notes 17. If CE goes HIGH simultaneously with WE HIGH, the output remains in high impedance state. 18. During this period, the I/Os are in output state. Do not apply input signals. Document #: 38-05006 Rev. *K Page 8 of 13 [+] Feedback CY7C1049CV33 Ordering Information Speed (ns) 8 Package Diagram Ordering Code CY7C1049CV33-8ZSXC 51-85087 Package Type 44-pin TSOP II (Pb-free) Operating Range Commercial Ordering Code Definitions CY 7C 1 04 9 C V33 - 8 ZS X C Temperature Range: C = Commercial X = Pb-free; X Absent = Leaded Package Type: ZS = 44-pin TSOP II Speed Grade: 8 ns V33 = 3.0 V to 3.6 V Process Technology:C 150 nm Data width: × 8-bits 4-Mbit density Fast Asynchronous SRAM Marketing Code: 7C = SRAMs Company ID: CY = Cypress Document #: 38-05006 Rev. *K Page 9 of 13 [+] Feedback CY7C1049CV33 Package Diagram Figure 7. 44-pin TSOP II, 51-85087 51-85087 *C Document #: 38-05006 Rev. *K Page 10 of 13 [+] Feedback CY7C1049CV33 Acronyms Acronym Description CMOS complementary metal oxide semiconductor CE Chip Enable OE Output Enable RAM Random Access Memory I/O Input/Output SOJ small outline J-lead TTL transistor-transistor logic TSOP thin small outline package WE Write Enable Document Conventions Units of Measure Symbol Unit of Measure ohms ns nano seconds V Volts µs micro seconds µA micro Amperes mA milli Amperes mm milli meter ms milli seconds MHz Mega Hertz pF pico Farad % percent mW milli Watts W Watts °C degree Celcius Document #: 38-05006 Rev. *K Page 11 of 13 [+] Feedback CY7C1049CV33 Document History Page Document Title: CY7C1049CV33 4-Mbit (512 K × 8) Static RAM Document Number: 38-05006 Rev. ECN Orig. of Change Submission Date Description of Change ** 112569 HGK 03/06/02 New data sheet *A 114091 DFP 04/25/02 Changed Tpower unit from ns to s *B 116479 CEA 09/16/02 Add applications foot note to data sheet, page 1. *C 262949 RKF See ECN Added Automotive-E Specs Added JA and JC values on Page #3. *D 300091 RKF See ECN Added -20-ns Speed bin *E 344595 SYT See ECN Added Pb-free package on page #8 Removed shading for CY7C1049CV33-15ZSXE in the ordering Information on page 9 *F 2615344 VKN/PYRS 12/03/08 Added Automotive-A information Removed 8 ns and 20 ns speed bins, Changed tPOWER spec from 1 s to 100 s, Updated Ordering Information table. *G 2841563 NXR/ *H 2898958 AJU 01/07/2010 Added CY7C1049CV33-10VXA to Ordering Info table. 03/25/10 Removed inactive parts from the ordering informaiton table. Updated package diagrams. *I 2954734 AJU *J 3072834 PRAS 11/12/2010 Removed obsolete parts and updated package diagram. *K 3185812 PRAS 03/02/2011 Updated Features. Updated Functional Description. Updated Selection Guide (Added -8 ns speed grade devices and removed -10 ns, -12 ns, and -15 ns speed grade devices). Removed Figure 36-pin SOJ (Top View) in Pin Configuration. Updated Electrical Characteristics (Added -8 ns speed grade devices and removed -10 ns, -12 ns, and -15 ns speed grade devices). Deleted 36-pin SOJ column in Thermal Resistance. Updated AC Switching Characteristics (Added -8 ns speed grade devices and removed -10 ns, -12 ns, and -15 ns speed grade devices). Added Units of Measure. Dislodged Automotive information to 001-67511. Removed SOJ package related information in all instances in the document. Document #: 38-05006 Rev. *K 06/30/2010 New Part Number added CY7C1049CV33-10ZXC to Ordering Info table. Page 12 of 13 [+] Feedback CY7C1049CV33 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. Products Automotive Clocks & Buffers Interface Lighting & Power Control PSoC Solutions cypress.com/go/automotive cypress.com/go/clocks psoc.cypress.com/solutions cypress.com/go/interface PSoC 1 | PSoC 3 | PSoC 5 cypress.com/go/powerpsoc cypress.com/go/plc Memory Optical & Image Sensing PSoC Touch Sensing USB Controllers Wireless/RF cypress.com/go/memory cypress.com/go/image cypress.com/go/psoc cypress.com/go/touch cypress.com/go/USB cypress.com/go/wireless © Cypress Semiconductor Corporation, 2002-2011. The information contained herein is subject to change without notice. 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Document #: 38-05006 Rev. *K Revised March 02, 2011 Page 13 of 13 All products and company names mentioned in this document may be the trademarks of their respective holders. [+] Feedback