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SMJ44C251B датащи (PDF) - Austin Semiconductor

SMJ44C251B Datasheet PDF - Austin Semiconductor
номер детали SMJ44C251B
скачать  SMJ44C251B скачать

объем файла   1265.41 Kbytes
Page   57 Pages
производитель  AUSTIN [Austin Semiconductor]
домашняя страница  http://www.austinsemiconductor.com
Logo AUSTIN - Austin Semiconductor
подробное описание детали 256K X 4 VRAM 256K x 4 DRAM with 512K x 4 SAM

SMJ44C251B Datasheet (PDF)

Go To PDF Page скачать датащи
SMJ44C251B Datasheet PDF - Austin Semiconductor

номер детали SMJ44C251B
скачать  SMJ44C251B Click to download

объем файла   1265.41 Kbytes
Page   57 Pages
производитель  AUSTIN [Austin Semiconductor]
домашняя страница  http://www.austinsemiconductor.com
Logo AUSTIN - Austin Semiconductor
подробное описание детали 256K X 4 VRAM 256K x 4 DRAM with 512K x 4 SAM

SMJ44C251B датащи (HTML) - Austin Semiconductor

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SMJ44C251B Информация о продукте

DESCRIPTION
The SMJ44C251B/MT42C4256 multiport video RAM is a high-speed, dual-ported memory device. It consists of a dynamic random-access memory (DRAM) organized as 262144 words of 4 bits each interfaced to a serial-data register or serial-access memory (SAM) organized as 512 words of 4 bits each. The SMJ44C251B/MT42C4256 supports three types of operation: random access to and from the DRAM, serial access to and from the serial register, and bidirectional transfer of data between any row in the DRAM and the serial register. Except during transfer operations, the SMJ44C251B/MT42C4256 can be accessed simultaneously and asynchronously from the DRAM and SAM ports.

FEATURES
• Class B High-Reliability Processing
• DRAM: 262144 Words × 4 Bits SAM: 512 Words × 4 Bits
• Single 5-V Power Supply (±10% Tolerance)
• Dual Port Accessibility–Simultaneous and Asynchronous Access From the DRAM and SAM Ports
• Bidirectional-Data-Transfer Function Between the DRAM and the Serial-Data Register
• 4 × 4 Block-Write Feature for Fast Area Fill Operations; As Many as Four Memory Address Locations Written per Cycle From an On-Chip Color Register
• Write-Per-Bit Feature for Selective Write to Each RAM I/O; Two Write-Per-Bit Modes to Simplify System Design
• Enhanced Page-Mode Operation for Faster Access
• CAS-Before-RAS (CBR) and Hidden Refresh Modes
• All Inputs/Outputs and Clocks Are TTL Compatible
• Long Refresh Period: Every 8 ms (Max)
• Up to 33-MHz Uninterrupted Serial-Data Streams
• 3-State Serial I/Os Allow Easy Multiplexing of Video-Data Streams
• 512 Selectable Serial-Register Starting
• Split Serial-Data Register for Simplified Real-Time Register Reload




Аналогичный номер детали - SMJ44C251B

производительномер деталидатащиподробное описание детали
logo
Texas Instruments
SMJ44C251B TI-SMJ44C251B Datasheet
930Kb / 53P
[Old version datasheet]   262144 BY 4-BIT MULTIPORT VIDEO RAM
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Аналогичное описание - SMJ44C251B

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Austin Semiconductor
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