SDA9253 - Siemens

SDA9253 2.6 MBit Dynamic Sequential Access Memory for Television Applications (TV-SAM)

The SDA 9253 is a triple port 2605056 bit dynamic sequential-access memory for high-data-rate video applications. It is organized as 212 rows by 64 columns by 16 arrays by 12 bit to allow for the storage of 12-bit planes of a TV field (NTSC, PAL, SECAM, MAC) in standard or studio quality (13.5-MHz basic sample rate) or 12-bit planes of parts of a HDTV field..

Features

q q q q q q q q q q q q q q q q q CMOS IC 212 × 64 × 16 × 12-bit organization Triple port architecture One 16 × 12-bit input shift register Two 16 × 12-bit output shift registers Shift registers independently and simultaneously accessible Continuous data flow even at maximum speed 40-MHz shift rate
  – 0.96-Gbit/s total data rate All inputs and outputs TTL-compatible Tristate outputs Random access of groups of 16 × 12 bits for a wide range of applications Refresh-free operation possible 5 V ± 10 % power supply 0 … 70 °C operating temperature range Low power dissipation: 700 mW active, 28 mW st.