GENERAL DESCRIPTION
The SAA4956TJ is a 2949264-bit field memory with an optional field based noise reduction designed for advanced TV applications such as 100/120 Hz TV, PALplus, PIP and 3D comb filter. The SAA4956TJ is functional and pin compatible with the SAA4955TJ.

FEATURES
• 2949264-bit field memory with optional field based noise reduction
• 245772 × 12-bit organization
• 3.3 V power supply
• Inputs fully TTL compatible when using an extra 5 V power supply
• High speed read and write operations
• FIFO operations:
    – Full word continuous read and write
    – Independent read and write pointers (asynchronous read and write access)
    – Resettable read and write pointers.
• Optional field based noise reduction activated by an enable pin and controlled via the I2C-bus
• Optional random access by block function (40 words per block) enabled during pointer reset operation
• Quasi static (internal self-refresh and clocking pauses of infinite length)
• Write mask function
• Cascade operation possible
• Compatible with SAA4955TJ
• 16-Mbit CMOS DRAM process technology
• 40-pin SOJ package.