CY7C199CN-12VXAT

CY7C199CN Automotive 256 K (32 K × 8) Static RAM Features General Description [1] ■ Fast access time: 12 ns ■ Wide voltage range: 5.0 V ± 10% (4.5 V to 5.5 V) ■ Complementary metal oxide semiconductor (CMOS) for optimum speed and power ■ Transistor-transistor logic (TTL) compatible inputs and outputs ■ Low CMOS standby power ■ Automated power down when deselected ■ Available in 28-pin Molded SOJ package The CY7C199CN Automotive is a high performance CMOS Asynchronous SRAM organized as 32 K by 8 bits that supports an asynchronous memory interface. The device features an automatic power down feature that reduces power consumption when deselected. See the “Truth Table” on page 4 in this data sheet for a complete description of read and write modes. The CY7C199CN Automotive is available in 28-pin Molded SOJ package. Logic Block Diagram RAM Array Sense Amps Row Decoder Input Buffer I/Ox CE Column Decoder WE Power Down Circuit OE X A X Product Portfolio –12 Unit Maximum access time 12 ns Maximum operating current 85 mA Maximum CMOS standby current 10 mA Cypress Semiconductor Corporation Document #: 001-67737 Rev. ** • 198 Champion Court • San Jose, CA 95134-1709 • 408-943-2600 Revised May 23, 2011 [+] Feedback CY7C199CN Automotive Contents Pin Layout and Specifications ........................................ 3 Pin Description ................................................................. 4 Truth Table ........................................................................ 4 Maximum Ratings ............................................................. 4 Operating Range ............................................................... 4 DC Electrical Characteristics .......................................... 5 Capacitance ....................................................................... 5 Thermal Resistance........................................................... 5 AC Test Loads .................................................................. 6 AC Test Conditions .......................................................... 6 AC Electrical Characteristics ........................................... 7 Document #: 001-67737 Rev. ** Timing Waveforms ........................................................... 8 Ordering Information ...................................................... 11 Ordering Code Definitions ......................................... 11 Package Diagrams .......................................................... 12 Acronyms ........................................................................ 13 Document Conventions ................................................. 13 Units of Measure ....................................................... 13 Document History Page ................................................. 14 Sales, Solutions, and Legal Information ...................... 15 Worldwide Sales and Design Support ....................... 15 Products .................................................................... 15 PSoC Solutions ......................................................... 15 Page 2 of 15 [+] Feedback CY7C199CN Automotive Pin Layout and Specifications 28 SOJ A5 1 28 VCC A6 2 27 WE A7 3 26 A4 A8 4 25 A3 A9 5 24 A2 A10 6 23 A1 A11 7 22 OE A12 8 21 A0 A13 9 20 CE A14 10 19 IO7 IO0 11 18 IO6 IO1 12 17 IO5 IO2 13 16 IO4 VSS 14 15 IO3 Note 1. For best practices recommendations, refer to the Cypress application note System Design Guidelines on www.cypress.com. Document #: 001-67737 Rev. ** Page 3 of 15 [+] Feedback CY7C199CN Automotive Pin Description Pin Type Description SOJ AX Input Address inputs 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 21, 23, 24, 25, 26 CE Control Chip enable IOX Input or output Data input outputs OE Control Output enable 22 VCC Supply Power (5.0V) 28 VSS Supply Ground 14 WE Control Write enable 27 20 11, 12, 13, 15, 16, 17, 18, 19 Truth Table CE OE WE IOx Mode Power H X X High-Z Deselect/power-down Stand by (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) Maximum Ratings Exceeding maximum ratings may shorten the useful life of the device. User guidelines are not tested. Parameter Description Value Unit TSTG Storage temperature –65 to +150 °C TAMB Ambient temperature with power applied (that is, case temperature) –55 to +125 °C VCC Core supply voltage relative to VSS VIN, VOUT DC voltage applied to any pin relative to VSS IOUT Output short-circuit current VESD Static discharge voltage (in accordance with MIL-STD-883, Method 3015) ILU Latch-up current > 200 mA –0.5 to +7.0 V –0.5 to VCC + 0.5 V 20 mA > 2001 V Operating Range Range Ambient Temperature (TA) Voltage Range (VCC) Automotive-A –40 °C to 85 °C 5.0 V ± 10% Document #: 001-67737 Rev. ** Page 4 of 15 [+] Feedback CY7C199CN Automotive DC Electrical Characteristics Over the Operating Range [2] Parameter Description Condition –12 Min Max Unit VIH Input HIGH voltage 2.2 VCC + 0.3 V VIL Input LOW voltage –0.5 0.8 V VOH Output HIGH voltage VCC = Min, IOH = –4.0 mA 2.4 – V VOL Output LOW voltage VCC = Min, IOL = 8.0 mA – 0.4 V ICC VCC operating supply current VCC = Max, IOUT = 0 mA, f = Fmax = 1/tRC – 85 mA ISB1 Automatic CE power- down current TTL Inputs Max VCC, CE  VIH, VIN  VIH or VIN  VIL, f = Fmax – 30 mA ISB2 Automatic CE power- down current CMOS Inputs Max VCC, CE  VCC – 0.3 V, VIN  VCC – 0.3 V, or VIN  0.3V, f = 0 – 10 mA IOZ Output leakage current GND  VI  VCC, Output disabled –5 +5 A IIX Input leakage current GND  VI  VCC –5 +5 A Capacitance [3] Parameter Description CIN Input capacitance COUT Output capacitance Conditions TA = 25 °C, f = 1 MHz, VCC = 5.0 V Max Unit 8 pF 8 Thermal Resistance [3] Parameter Description Conditions JA Thermal resistance (junction Still air, soldered on a 3 × 4.5 square inch, to ambient) two-layer printed circuit board JC Thermal resistance (junction to case) SOJ Unit 79 °C/W 41.42 Notes 2. VIL (min) = –2.0 V for pulse durations of less than 20 ns. 3. Tested initially and after any design or process change that may affect these parameters. Document #: 001-67737 Rev. ** Page 5 of 15 [+] Feedback CY7C199CN Automotive AC Test Loads O u tp u t L o a d s O u tp u t L o a d s fo r t H Z O E , t H Z C E & t H Z W E R1 R3 VC C VC C O u tp u t C1 R2 C2 (A )* (B )* T h e v e n in E q u iv a le n t O u tp u t R th R4 A ll In p u t P u ls e s VC C 90% VT 90% 10% VS S 10% R is e T im e 1 V /n s F a ll T im e 1 V /n s * in c lu d in g s c o p e a n d jig c a p a c ita n c e AC Test Conditions Parameter Description Nom Unit 30 pF C1 Capacitor 1 C2 Capacitor 2 5 R1 Resistor 1 480 R2 Resistor 2 255 R3 Resistor 3 480 R4 Resistor 4 255 RTH Resistor Thevenin 167 VTH Voltage Thevenin 1.73 Document #: 001-67737 Rev. **  V Page 6 of 15 [+] Feedback CY7C199CN Automotive AC Electrical Characteristics [4] Parameter Description –12 Min Max Unit tRC Read cycle time 12 – ns tAA Address to data valid – 12 ns tOHA Data hold from address change 3 – ns tACE CE to data valid – 12 ns tDOE OE to data valid – 6 ns 0 – ns – 5 ns 3 – ns tLZOE tHZOE OE to low-Z [5] OE to high-Z [5, 6] [5] tLZCE CE to low-Z tHZCE CE to high-Z [5, 6] – 5 ns tPU CE to power-up 0 – ns tPD CE to power-down – 12 ns tWC Write cycle time [7] 12 – ns tSCE CE to write end 9 – ns tAW Address setup to write end 9 – ns tHA Address hold from write end 0 – ns tSA Address setup to write start 0 – ns WE pulse width 8 – ns tSD Data setup to write end 8 – ns tHD Data hold from write end 0 – ns – 7 ns 3 – ns tPWE [5, 6] tHZWE WE LOW to high-Z tLZWE WE HIGH to low-Z [5] Notes 4. Test Conditions are based on a transition time of 3 ns or less and timing reference levels of 1.5 V, and input pulse levels of 0 to 3.0 V. 5. At any given temperature and voltage condition, tHZCE is less than tLZCE, tHZOE is less than tLZOE, and tHZWE is less than tLZWE for any given device. 6. tHZOE, tHZCE, tHZWE are specified as in part (b) of AC Test Loads, page 6. Transitions are measured ± 200 mV from steady state voltage. 7. The internal memory write time 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 any of these signals can terminate the write. The input data setup and hold timing must be referenced to the leading edge of the signal that terminates the write. Document #: 001-67737 Rev. ** Page 7 of 15 [+] Feedback CY7C199CN Automotive Timing Waveforms Figure 1. Read Cycle 1 [8, 9] tRC Address tAA tOHA Data Out Previous Data Valid Data Valid Figure 2. Read Cycle [10, 11] tRC Address CE tHZCE tACE OE tDOE tHZOE tLZOE High Z Data Out VCC Current ICC ISB High Z Data Valid tLZCE tPU tPD 50% 50% Notes 8. Device is continuously selected. OE = VIL = CE. 9. WE is HIGH for read cycle. 10. This cycle is OE controlled and WE is HIGH read cycle. 11. Address valid before or similar with CE transition LOW. Document #: 001-67737 Rev. ** Page 8 of 15 [+] Feedback CY7C199CN Automotive Timing Waveforms (continued) Figure 3. Write Cycle 1 (WE controlled) [12, 13, 14] tWC Address tSCE CE tAW tHA tPWE tSA WE OE tHZOE Data In/Out tHD tSD Undefined Data-In Valid see footnotes Figure 4. Write Cycle 2 (CE controlled) [13, 15, 16] tWC Address tSCE CE tSA tHA tAW WE tSD Data In/Out High Z Data-In Valid tHD High Z Notes 12. This cycle is WE controlled, OE is HIGH during write. 13. Data in and/or out is high impedance if OE = VIH. 14. During this period the IOs are in output state and input signals must not be applied. 15. This cycle is CE controlled. 16. If CE goes HIGH simultaneously with WE going HIGH, the output remains in a high impedance state. Document #: 001-67737 Rev. ** Page 9 of 15 [+] Feedback CY7C199CN Automotive Timing Waveforms (continued) Figure 5. Write Cycle 3 (WE controlled, OE low) [17] t WC Address tSCE CE tAW tHA t PWE tSA WE tSD Data In Out Undefined tHD Undefined See Footnotes Data In Valid see footnotes t HZWE t LZWE Note 17. The cycle is WE controlled, OE LOW. The minimum write cycle time is the sum of tHZWE and tSD. Document #: 001-67737 Rev. ** Page 10 of 15 [+] Feedback CY7C199CN Automotive Ordering Information Speed (ns) 12 Ordering Code CY7C199CN-12VXA Package Diagram 51-85031 Package Type 28-Pin (300-Mil) Molded SOJ, Pb-free Power Option Standard Operating Range Automotive-A Ordering Code Definitions CY 7 C 1 99 CN - XX XX X Temperature Range: X = A A = Automotive-A; Package Type: XX = VX VX = 28-Pin Molded SOJ (Pb-free) Speed: XX = 12 ns CN = 0.25 µm Technology 99 = 256 K bit density with datawidth × 8 bits 1 = Fast Asynchronous SRAM family Technology Code: C = CMOS 7 = SRAM CY = Cypress Document #: 001-67737 Rev. ** Page 11 of 15 [+] Feedback CY7C199CN Automotive Package Diagrams Figure 6. 28-Pin (300-Mil) Molded SOJ, 51-85031 51-85031 *D Document #: 001-67737 Rev. ** Page 12 of 15 [+] Feedback CY7C199CN Automotive Acronyms Document Conventions Acronym Description CE chip enable CMOS Complementary metal oxide semiconductor I/O Input/output OE output enable SRAM Static random access memory SOJ Small Outline J-Lead Document #: 001-67737 Rev. ** Units of Measure Symbol Unit of Measure ns nano seconds V Volts µA micro Amperes mA milli Amperes mV milli Volts mW milli Watts MHz Mega Hertz pF pico Farad °C degree Celcius W Watts Page 13 of 15 [+] Feedback CY7C199CN Automotive Document History Page Document Title: CY7C199CN Automotive, 256 K (32 K × 8) Static RAM Document Number: 001-67737 Revision ECN Orig. of Change Submission Date Description of Change ** 3253367 PRAS 05/23/11 New datasheet. Separation of the automotive datasheet from CY7C199CN spec no. 001-06435 Rev. *D. Further rev of 001-06435 would include only industrial / commercial parts. Document #: 001-67737 Rev. ** Page 14 of 15 [+] Feedback CY7C199CN Automotive 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, 2011. 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Document #: 001-67737 Rev. ** Revised May 23, 2011 Page 15 of 15 All products and company names mentioned in this document may be the trademarks of their respective holders. [+] Feedback