Part SAA128M4T27B
Description 512M DDR SDRAM
Manufacturer SpecTek
Size 627.31 KB
SpecTek
SAA128M4T27B

Overview

  • PC2100, PC2700 and PC3200 compatible
  • VDD = +2.5V ±0.2V, VDDQ = +2.5V ±0.2V (For -6A & 75A)
  • VDD = +2.6V ±0.1V, VDDQ = +2.6V ±0.1V (For -5B)
  • Bi-directional data strobe (DQS) transmitted/ received with data, i.e. source-synchronous data capture (x16 has two: LDQS and UDQS - one per byte)
  • Internal, pipelined double-data-rate (DDR) architecture; two data accesses per clock cycle
  • Differential clock inputs (CK and CK#)
  • Commands entered on each positive CK edge
  • DQS edge-aligned with data for READs; center-aligned with data for WRITEs
  • DLL to align DQ and DQS transitions with CK
  • Four internal banks for concurrent operation