CY7C197B-12VC Cypress Semiconductor Corp, CY7C197B-12VC Datasheet
CY7C197B-12VC
Specifications of CY7C197B-12VC
Related parts for CY7C197B-12VC
CY7C197B-12VC Summary of contents
Page 1
... The device features an automatic power-down feature that significantly reduces power consumption when deselected. See the Truth Table in this data sheet for a complete description of read and write modes. The CY7C197B is available in 24 DIP and 24 SOJ package(s). Input Buffer RAM Array ...
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... Pin Layout and Specifications Document #: 38-05410 Rev DIP (6.6 × 31.8 × 3.5 mm) – P13 Dout GND SOJ (8 × 15 × 3.5 mm) – V13 Dout GND 12 13 CY7C197B Din Din CE Page [+] Feedback ...
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... V Supply Power (5.0V Control Write Enable. Truth Table CE WE Input/Output H X High Data Out L L Data In Document #: 38-05410 Rev. ** Description 15, 16, 17, 18, 19, 20, 21, 22, Mode Deselect/Power-Down Read Write CY7C197B DIP SOJ 15, 16, 17, 18, 19, 20, 21, 22 Power Standby ( Active ( Active ( Page [+] Feedback ...
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... MAX = Max – 0.3v, V – – 0. < 0.3v Output Disabled – –5 CC Conditions T = 25C MHz 5.0V CC CY7C197B Value Unit –65 to +150 °C –55 to +125 °C –0.5 to +7.0 V –0 0 > 2001 V > 200 mA Voltage Range ( 5.0V ± 10 Max Min Max Unit V +0.3 2 ...
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... V/ns * including scope and jig capacitance Nom 480 255 480 255 167 1.73 Conditions Still Air, soldered × 4.5 square inches, two-layer printed circuit board /I and 30-pF load capacitance CY7C197B Output Loads for & t HZOE HZCE HZWE (B)* 90% 10% Fall Time 1 V/ns ...
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... HZCE LZCE HZOE LZOE CY7C197B 25 ns Min Max Unit 25 – ns – – ns – – ns – – ns – – – – – ...
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... Data Out Previous Data Valid 8 Read Cycle No. 2 Address CE High Z Data Out I CC Vcc Supply Current I SB Notes HIGH for ready cycle. 9. Device is continuously selected Document #: 38-05410 Rev OHA ACE t LZCE Data Valid t PU 50% CY7C197B Data Valid t HZCE High 50% Page [+] Feedback ...
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... Write Cycle No. 2 Address CE WE Data In Data Out Notes: Notes: 10 goes HIGH simultaneously with WE HIGH, the output remains in high-impedance state. Document #: 38-05410 Rev SCE PWE Data Valid t t LZWE HZWE High Impedance SCE PWE t SD Data Valid High Z CY7C197B Page [+] Feedback ...
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... Ordering Information Speed Ordering Code 12 ns CY7C197B-12VC 25 ns CY7C197B-25PC Package Diagram All product and company names mentioned in this document may be the trademarks of their respective holders. Document #: 38-05410 Rev. ** © Cypress Semiconductor Corporation, 2003. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress Semiconductor product ...
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... Document History Page Document Title: CY7C197B 256 Kb (256K x 1) Static RAM Document Number: 38-05410 REV. ECN No. Issue Date ** 129235 09/16/03 Document #: 38-05410 Rev. ** Orig. of Change Description of Change HGK New Data Sheet CY7C197B Page [+] Feedback ...