msm518221 Oki Semiconductor, msm518221 Datasheet
msm518221
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msm518221 Summary of contents
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... Field Memory DESCRIPTION The OKI MSM518221 is a high performance 2-Mbit, 256K ¥ 8-bit, Field Memory designed for high-speed serial access applications such as HDTVs, conventional NTSC TVs, VTRs, digital movies and Multi-media systems. The 2-Mbit capacity fits one field of a conventional NTSC TV screen. ...
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... PRODUCT FAMILY Family Access Time (Max.) MSM518221-25ZS MSM518221-30ZS MSM518221-40ZS MSM518221-25JS MSM518221-30JS MSM518221-40JS MSM518221-30GS-K MSM518221-40GS-K 25 ns/30 ns/ ns/25 ns/30 ns (ZIP28-P-400-1.27) (Product : MSM518221-xxZS) (SOJ28-P-400-1.27) (Product : MSM518221-xxJS) (SOP28-P-430-1.27-K) (Product : MSM518221-xxGS-K) xx indicates speed rank. Cycle Time (Min ...
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... Plastic SOJ Function Serial Write Clock Serial Read Clock Write Enable Read Enable Input Enable Output Enable Write Reset Clock Read Reset Clock Data Input Data Output Power Supply (5 V) Ground ( Connection MSM518221 ...
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... Read Buffer (¥ 8) 512 Word Serial Read Register (¥ 8) Read Line Buffer Low-Half (¥ 8) 256 (¥ Word Sub-Register (¥ 8) 256K (¥ 8) Memory Array 71 Word Sub-Register (¥ 8) 256 (¥ 8) Write Line Buffer Low-Half (¥ 8) 512 Word Serial Write Register (¥ 8) Data-in ...
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... There are no WE disable time (low) and WE enable time (high) restrictions, because the MSM518221 is in fully static operation as long as the power is on. Note that WE setup and hold times are referenced to the rising edge of SWCK. ...
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... The three-state output buffer provides direct TTL compatibility (no pullup resistor required). Data out is the same polarity as data in. The output becomes valid after the access time interval t begins with the rising edge of SRCK. There are no output valid time restrictions on MSM518221. Read Enable : RE The function gate of the SRCK clock for incrementing the read pointer ...
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... RSTR operation must be at least 600 SRCK cycles. If the delay between RSTW and RSTR operations is more than 71 but less than 600 cycles, then the data read out will be undetermined. It may be "old data" or "new" data combination of old and new data. Such a timing should be avoided. MSM518221 and/or the substrate voltage has not CC has ...
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... Other Pins Tested < V < – -25 -30 Minimum Cycle Time, Output Open -40 Input Pin = MSM518221 Rating Unit –1 °C –55 to 150 °C Max. Unit 5 ...
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... T MSM518221 ( ±10 0°C to 70°C) CC MSM518221-40 Unit Max. Min. Max. 25 — — 6 — — 17 — ns — 17 — ns — 5 — ns — ...
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... However, normal write is achieved in this address condition. 6. Outputs are measured with a load equivalent to 1 TTL load and 30 pF. Output reference levels are V is defined transition time that signal transfers ns 2.4 V and MSM518221 = 3.0 V and 10/16 ...
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... SWCK t WENH WE t WWEL RSTW 0 cycle 1 cycle t t WSWH WSWL t RSTWH t SWC 1 2 Disable cycle Disable cycle t t WDSH WDSS t WWEH n+1 MSM518221 2 cycle 3 n+1 cycle t WENS n+2 11/ ...
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... T RSTR OUT RE OE n+1 cycle n+2 cycle IDSH IDSS IENS t WIEH n+3 0 cycle 1 cycle t t WSRH WSRL t RSTRH t SRC t DDCK 0 1 MSM518221 n+3 cycle n cycle ...
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... Read Cycle Timing (Output Enable) n cycle SRCK t OENH OE t WOEN n OUT RE RSTR Disable cycle Disable cycle t t RDSH RDSS t WREH n n+1 cycle n+2 cycle ODSH ODSS t WOEH Hi-Z MSM518221 n+1 cycle t RENS n+1 n+3 cycle OENS t DECK n+3 13/ ...
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... Semiconductor PACKAGE DIMENSIONS ZIP28-P-400-1.27 Mirror finish MSM518221 (Unit : mm) Package material Epoxy resin Lead frame material 42 alloy Pin treatment Solder plating more Solder plate thickness Package weight (g) 1.85 TYP. 14/16 ...
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... Therefore, before you perform reflow mounting, contact Oki’s responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times). MSM518221 (Unit : mm) Package material Epoxy resin ...
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... Therefore, before you perform reflow mounting, contact Oki’s responsible sales person for the product name, package name, pin number, package code and desired mounting conditions (reflow method, temperature and times). MSM518221 (Unit : mm) Package material Epoxy resin ...