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UPD4564441 Datasheet (upd4564841/441/163) 64m-bit Sdram

Manufacturer: Elpida Memory

Overview: DATA SHEET MOS INTEGRATED CIRCUIT µPD4564441, 4564841, 4564163 64M-bit Synchronous DRAM 4-bank,.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The µPD4564441, 4564841, 4564163 are high-speed 67,108,864-bit synchronous dynamic random-access memories, organized as 4,194,304 × 4 × 4, 2,097,152 × 8 × 4, 1,048,576 ×16 × 4 (word × bit × bank), respectively.

The synchronous DRAMs achieved high-speed data transfer using the pipeline architecture.

All inputs and outputs are synchronized with the positive edge of the clock.

Key Features

  • Fully Synchronous Dynamic RAM, with all signals referenced to a positive clock edge.
  • Pulsed interface.
  • Possible to assert random column address in every cycle.
  • Quad internal banks controlled by A12 and A13 (Bank Select).
  • Byte control (×16) by LDQM and UDQM.
  • Programmable Wrap sequence (Sequential / Interleave).
  • Programmable burst length (1, 2, 4, 8 and full page).
  • Programmable /CAS latency (2 and 3).
  • Automatic prech.

Similar Datasheet

Brand Logo Part Number Description Manufacturer
NEC Logo UPD4564441 64M-bit Synchronous DRAM NEC

More Datasheets from Elpida Memory

Part Number Description
UPD4564163 (UPD4564841/441/163) 64M-bit SDRAM
UPD4564841 (UPD4564841/441/163) 64M-bit SDRAM
UPD488588 288M bits Direct Rambus DRAM
UPD488588FF-C80-40 288M bits Direct Rambus DRAM

UPD4564441 Distributor