CY7C197-35PC Cypress Semiconductor Corporation., CY7C197-35PC Datasheet
CY7C197-35PC
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CY7C197-35PC Summary of contents
Page 1
... The output pin stays in a high-impedance state when Chip Enable (CE) is HIGH or Write Enable (WE) is LOW. The CY7C197 utilizes a die coat to insure alpha immunity. Pin Configurations DI DIP/SOJ ...
Page 2
... MAX Max > V 0.3V [3] V > < 0. [1] 0. Ambient Temperature +70 C 7C197-12 7C197-15 Min. Max. Min. 2.4 2.4 0.4 2 0.3V 0.5 0.8 0 300 150 power-up, otherwise I will exceed values given CY7C197 + 0. 10% Max. Unit V 0 +0.3V 0 300 mA 140 Page ...
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... C197-4 (b) 1.90V = < for the -20 and slower speeds. 7C197-20 7C197-25, 35, 45 Min. Max. Min. 2.4 2.4 0.4 2 0.3V 0.5 0.8 0 300 135 Max ALL INPUT PULSES 3.0V 90% 10% GND < CY7C197 Max. Unit V 0 0.3V 0 300 Unit pF pF 90% 10% < C197-5 Page ...
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... HIGH. The data input set-up and hold timing should be referenced to the rising edge of the signal that terminates the write. Document #: 38-05049 Rev. ** [6] 7C197-15 7C197- and 30-pF load capacitance less than t and t is less than t HZCE LZCE HZWE CY7C197 7C197-25 7C197-35 7C197- for any given device. LZWE Page Unit ns ...
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... DATA IN DATA OUT Notes: 10 HIGH for read cycle. 11. Device is continuously selected Document #: 38-05049 Rev OHA ACE 50% [ SCE HZWE DATA UNDEFINED . IL DATA VALID t HZCE IMPEDANCE DATA VALID PWE DATA VALID t LZWE HIGH IMPEDANCE CY7C197 C197-6 HIGH ICC ISB C197-7 C197-8 Page ...
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... Switching Waveforms (continued) Write Cycle No. 2 (CE Controlled) ADDRESS DATA IN DATA OUT Note: 12 goes HIGH simultaneously with WE HIGH, the output remains in a high-impedance state. Document #: 38-05049 Rev. ** [9, 12 SCE PWE t SD DATA VALID CY7C197 HIGH IMPEDANCE C197-9 Page ...
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... OUTPUT VOLTAGE(V) OUTPUT SINK CURRENT vs. OUTPUT VOLTAGE 140 120 100 0.0 1.0 2.0 125 OUTPUT VOLTAGE(V) NORMALIZED I vs. CYCLE TIME CC 1.25 V =5. =25°C A 1.00 V =0.5V IN 0.75 0.50 800 1000 CYCLE FREQUENCY (MHz) CY7C197 =5.0V =25°C 3.0 4.0 =5.0V =25°C 3.0 4.0 40 Page ...
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... Data In Ordering Information Speed (ns) Ordering Code 12 CY7C197-12PC CY7C197-12VC 15 CY7C197-15PC CY7C197-15VC 20 CY7C197-20PC CY7C197-20VC 25 CY7C197-25PC CY7C197-25VC 35 CY7C197-35PC CY7C197-35VC 45 CY7C197-45PC CY7C197-45VC Document #: 38-05049 Rev. ** Input/Output Deselect/Power-Down Read Write Package Name Package Type P13 24-Lead (300-Mil) Molded DIP V13 24-Lead Molded SOJ P13 24-Lead (300-Mil) Molded DIP ...
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... 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. 24-Lead (300-Mil) Molded DIP P13/P13A 24-Lead (300-Mil) Molded SOJ V13 CY7C197 51-85013-A 51-85030-A Page ...
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... Document Title: CY7C197 256K x 1 Static RAM Document Number: 38-05049 Issue REV. ECN NO. Date ** 107151 09/10/01 Document #: 38-05049 Rev. ** Orig. of Change Description of Change SZV Change from Spec number: 38-00078 to 38-05049 CY7C197 Page ...