CY7C0251AV-20AC Cypress Semiconductor Corporation., CY7C0251AV-20AC Datasheet
CY7C0251AV-20AC
Specifications of CY7C0251AV-20AC
Related parts for CY7C0251AV-20AC
CY7C0251AV-20AC Summary of contents
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Dual-Port Static RAM Features • True dual-ported memory cells which allow simultaneous access of the same memory location • 4/8/16K × 16 organization (CY7C024AV/025AV/026AV) • 4/8K × 18 organization (CY7C0241AV/0251AV) • 16K × 18 organization (CY7C036AV) ...
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Pin Configurations I/O 10L 5 I/O 6 11L I/O 12L 7 I/O 13L 8 GND 9 I/O 10 14L I/O 11 15L GND I I/O 15 ...
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... NC 4 I/O10L 5 I/O11L 6 I/O12L 7 I/O13L 8 GND 9 I/O14L 10 I/O15L 11 VCC 12 GND 13 I/O0R 14 I/O1R 15 I/O2R 16 VCC 17 I/O3R 18 I/O4R 19 I/O5R 20 I/O6R Notes the CY7C0251AV. 12L the CY7C0251AVC. 12R Document #: 38-06052 Rev. *H Top View 100-Pin TQFP CY7C0241AV (4K × 18) CY7C0251AV (8K × 18 CY7C026AV (16K × 16 CY7C024AV/025AV/026AV CY7C0241AV/0251AV/036AV ...
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Pin Configurations (continued I/O 8L I/O 17L I/O 11L I/O 12L I/O 13L I/O 14L GND I/O 15L I/O 16L V CC GND I/O 0R I I/O 3R I/O 4R I/O 5R I/O ...
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Pin Definitions Left Port Right Port R/W R –A A –A 0L 13L 0R 13R I/O –I/O I/O –I/O 0L 17L 0R 17R SEM SEM ...
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CY7C026AV/36AV) is the mailbox for the right port and the second-highest memory location (FFE for the CY7C024AV/ 41AV, 1FFE for the CY7C025AV/51AV, 3FFE for the CY7C026AV/36AV) is the mailbox for the left port. When one port writes to the ...
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Table 1. Non-Contending Read/Write Inputs CE R ...
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Maximum Ratings (Above which the useful life may be impaired. For user guide- lines, not tested.) Storage Temperature ................................. –65°C to +150°C Ambient Temperature with Power Applied............................................. –55°C to +125°C Supply Voltage to Ground Potential ............... –0.5V to +4.6V ...
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AC Test Loads and Waveforms 3. 590Ω OUTPUT 435Ω (a) Normal Load (Load 1) Switching Characteristics Over the Operating Range Parameter Read Cycle t Read Cycle Time RC t Address to Data ...
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Switching Characteristics Over the Operating Range (continued) Parameter t Data Set-up to Write End SD t Data Hold From Write End HD [22, 23] t R/W LOW to High Z HZWE [22, 23] t R/W HIGH to Low Z LZWE ...
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Switching Waveforms Read Cycle No. 1 (Either Port Address Access) ADDRESS t OHA DATA OUT PREVIOUS DATA VALID Read Cycle No. 2 (Either Port CE/OE Access) CE and DATA OUT I CC CURRENT I SB [28, ...
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Switching Waveforms (continued) Write Cycle No. 1: R/W Controlled Timing ADDRESS OE [37, 38 R/W NOTE 40 DATA OUT DATA IN Write Cycle No Controlled Timing ADDRESS [37, 38 R/W DATA IN ...
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Switching Waveforms (continued) Semaphore Read After Write Timing, Either Side A –A VALID ADRESS 0 2 SEM I R/W OE Timing Diagram of Semaphore Contention A – R/W L SEM L A – ...
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Switching Waveforms (continued) Timing Diagram of Read with BUSY (M/S=HIGH) ADDRESS R R/W R DATA ADDRESS L BUSY L DATA OUTL Write Timing with Busy Input (M/S=LOW) R/W BUSY Note: 46 LOW. ...
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Switching Waveforms (continued) Busy Timing Diagram No.1 (CE Arbitration) CE Valid First: L ADDRESS L BUSY R CE Valid First: R ADDRESS L BUSY L Busy Timing Diagram No.2 (Address Arbitration) Left ...
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Switching Waveforms (continued) Interrupt Timing Diagrams Left Side Sets INT : R ADDRESS WRITE 1FFF (OR 1/3FFF R/W L INT R t INS Right Side Clears INT : R ADDRESS R ...
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... Asynchronous Dual-Port SRAM Speed (ns) Ordering Code 20 CY7C0241AV-20AC 25 CY7C0241AV-25AC 8K x18 3.3V Asynchronous Dual-Port SRAM Speed (ns) Ordering Code 20 CY7C0251AV-20AC 25 CY7C0251AV-25AC Document #: 38-06052 Rev. *H CY7C024AV/025AV/026AV CY7C0241AV/0251AV/036AV Package Name Package Type A100 100-Pin Thin Quad Flat Pack A100 100-Pin Lead-free Thin Quad Flat Pack ...
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Asynchronous Dual-Port SRAM Speed (ns) Ordering Code 20 CY7C036AV-20AC 25 CY7C036AV-25AC CY7C036AV-25AXC CY7C036AV-25AI Package Diagram 100-Pin Thin Plastic Quad Flat Pack (TQFP) A100 100-Pin Lead (Pb)-free Thin Plastic Quad Flat Pack (TQFP) A100 All product and company ...
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... Document History Page Document Title: CY7C024AV/CY7C025AV/CY7C026AV/CY7C0241AV/CY7C0251AV/CY7C036AV 3.3V 4K/8K/16K x 16/18 Dual Port Static RAM Document Number: 38-06052 REV. ECN NO. Issue Date ** 110204 11/11/01 *A 122302 12/27/02 *B 128958 9/03/03 *C 237622 See ECN *D 241968 See ECN *E 276451 See ECN *F 279452 See ECN *G 373580 See ECN ...