CY7C185-25ZC Cypress Semiconductor, CY7C185-25ZC Datasheet
CY7C185-25ZC
Related parts for CY7C185-25ZC
CY7C185-25ZC Summary of contents
Page 1
... CMOS for optimum speed/power • Easy memory expansion with • TTL-compatible inputs and outputs • Automatic power-down when deselected Functional Description The CY7C185 is a high-performance CMOS static RAM orga- nized as 8192 words by 8 bits. Easy memory expansion is Logic Block Diagram ...
Page 2
... GND OUT V = Max OUT Max Min. Duty Cycle=100% Max – 0.3V 0. – CY7C185 I/O 3 GND ...
Page 3
... 0. – Test Conditions MHz 5. 481 255 INCLUDING JIGAND SCOPE C185–4 (b) 1.73V 3 CY7C185 7C185–20 7C185–25, 35 Min. Max. Min. Max. 2.4 2.4 0.4 0.4 2 –0.5 0.8 –0.5 0.8 –5 +5 –5 +5 –5 +5 –5 +5 –300 – ...
Page 4
... AC Test Loads. Transition is measured 500 mV from steady state voltage less than t and t for any given device. HZCE LZCE1 LZCE2 LOW, CE HIGH, and WE LOW. All 3 signals must be active to initiate a write and CY7C185 7C185–20 7C185–25 7C185–35 Max. Min. Max. Min. Max ...
Page 5
... NOTE 15 DATA I/O t HZOE FOR REVIEW ONLY OHA DOE DATA VALID 50 SCEI SCE2 t PWE t SD DATA VALID IN 5 CY7C185 DATA VALID C185–6 t HZOE t HZCE HIGH IMPEDANCE t PD ICC 50% ISB C185– C185–8 ...
Page 6
... LOW, CE HIGH and WE LOW going HIGH or CE going LOW. The data input set-up and hold timing should be referenced to the 1 2 HZWE 6 CY7C185 VALID VALID IN t LZWE and WE must be LOW and CE must be HIGH ...
Page 7
... AMBIENT TEMPERATURE ( C) TYPICAL ACCESS TIME CHANGE vs.OUTPUT LOADING 30.0 25.0 20.0 15.0 10.0 V =4. = 5.0 0.0 0 200 400 600 800 1000 CAPACITANCE (pF) 7 CY7C185 OUTPUT SOURCE CURRENT vs.OUTPUT VOLTAGE 120 100 80 V =5. = 0.0 1.0 2.0 3.0 4.0 OUTPUT VOLTAGE (V) OUTPUT SINK CURRENT vs.OUTPUT VOLTAGE 140 120 ...
Page 8
... CY7C185–12VC 15 CY7C185–15PC CY7C185–15VC CY7C185–15ZC 20 CY7C185–20PC CY7C185–20VC CY7C185–20ZC 25 CY7C185–25PC CY7C185–25VC CY7C185–25ZC 35 CY7C185–35PC CY7C185–35VC CY7C185–35ZC Shaded areas contain preliminary information. Document #: 38–00037–K FOR REVIEW ONLY Mode Deselect/Power-Down Deselect/Power-Down Read ...
Page 9
... Package Diagrams FOR REVIEW ONLY 28-Lead (300-Mil) Molded DIP P21 28-Lead Molded SOJ V21 9 CY7C185 ...
Page 10
... The inclusion of Cypress Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges. FOR REVIEW ONLY CY7C185 ...