Cypress CY7C027V manuals
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18 pages 466.24 Kb
3.3V 32K/64K x 16/18 Dual-Port Static RAM,Cypress Semiconductor Corporation 198 Champion Court San Jose CA 95134-1709 408-943-2600 Document #: 38-06078 Rev. *B Revised December 09, 2008 Features= 10 A (typical) 32K x 18 organization (CY7C037V/037AV 32K x 16 organization (CY7C027V/027VN/027AV True Dual-Ported memory cells which allow simultaneous access of the same memory location ) 64K x 16 organization (CY7C028V) ) 64K x 18 organization (CY7C038V) 0.35 micron CMOS for optimum speed and power High speed access: 15, 20, and 25 ns Low operating power Active: I = 115 mA (typical) Standby: I Fully asynchronous operation Automatic power down On-chip arbitration logic Semaphores included to permit software handshaking between ports INT flag for port-to-port communication Separate upper-byte and lower-byte control Dual chip enables Pin select for Master or Slave Commercial and Industrial temperature ranges 100-pin Pb-free TQFP and 100-pin TQFP Logic Block Diagram 2 CY7C027V/027VN/027AV/028VCY7C028V (64K x 16) CY7C027V/027VN/027AV (32K x 16)Figure 1. 100-Pin TQFP (Top View)Note 1. This pin is NC for CY7C027V/027VN/027AV. 3 CY7C037V/037AV/038VCY7C038V (64K x 18) CY7C037V/037AV (32K x 18)Document #: 38-06078 Rev. *B Page 3 of 18 Figure 2. 100-Pin TQFP (Top View) Selection Guide(Both ports TTL level) 35 35 30 mA Typical Standby Current for I (Both ports CMOS level) 10 A10 A10 AANote 2. This pin is NC for CY7C037V/037AV. 4 ArchitectureFunctional DescriptionWrite Operation Read Operation Interrupts Pin Definitions5 BusyMaster/Slave Semaphore Operation 6 Maximum RatingsOperating Range Capacitance Electrical Characteristics 7 CY7C027V/027VN/027AV/028V CY7C037V/037AV/038VSwitching Characteristics 8 CY7C027V/027VN/027AV/028V CY7C037V/037AV/038VSwitching Characteristics Data Retention Mode Timing 16 Ordering Information32K x16 3.3V Asynchronous Dual-Port SRAM 64K x16 3.3V Asynchronous Dual-Port SRAM 32K x18 3.3V Asynchronous Dual-Port SRAM 64K x18 3.3V Asynchronous Dual-Port SRAM 18 Document History PageSales, Solutions, and Legal Information Worldwide Sales and Design Support Products PSoC Solutions
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