Datasheet4U Logo Datasheet4U.com

IS43DR16640DL Datasheet 64mx16 Ddr2 Dram

Manufacturer: ISSI (now Infineon)

Overview: IS43/46DR81280D, IS43/46DR81280DL IS43/46DR16640D, IS43/46DR16640DL 128Mx8, 64Mx16 DDR2.

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

General Description

ISSI's 1Gb DDR2 SDRAM uses a double-data-rate architecture to achieve high-speed operation.

The double-data rate architecture is essentially a 4n-prefetch architecture, with an interface designed to transfer two data words per clock cycle at the I/O balls.

ADDRESS TABLE Parameter 128M x 8 Configuration 16M x 8 x 8 banks Refresh Count 8K/64ms Row Addressing 16K (A0-A13) Column Addressing 1K (A0-A9) Bank Addressing BA0 - BA2 Precharge Addressing A10 64M x 16 8M x 16 x 8 banks 8K/64ms 8K (A0-A12) 1K (A0-A9) BA0 - BA2 A10 KEY TIMING PARAMETERS Speed Grade -18F -22E -25D tRCD 13.125 13.33 12.5 tRP 13.125 13.33 12.5 tRC 51.25 55 55 tRAS 40 40 40 tCK @CL=3 X 5 5 tCK @CL=4 3.75 3.75 3.75 tCK @CL=5 2.5 2.5 2.5 tCK @CL=6 2.2 2.2 2.5 tCK @CL=7 1.875 2.2 — Note: Faster speed options

Key Features

  • Standard Voltage: Vdd and Vddq = 1.8V ±0.1V.
  • Low Voltage (L): Vdd and Vddq = 1.5V ±0.075V.
  • SSTL_18-compatible for Standard Voltage.
  • SSTL_15-compatible for Low Voltage.
  • Double data rate interface: two data transfers per clock cycle.
  • Differential data strobe (DQS, DQS).
  • 4-bit prefetch architecture.
  • On chip DLL to align DQ and DQS transitions with CK.
  • 8 internal banks for concurrent operation.
  • Programmable CA.

IS43DR16640DL Distributor

More Datasheets from ISSI (now Infineon)

Part Number Description
IS43DR16640D 64Mx16 DDR2 DRAM
IS43DR16640B 1Gb DDR2 SDRAM
IS43DR16640BL 1Gb DDR2 SDRAM
IS43DR16640C DDR2 DRAM
IS43DR16128C DDR2 DRAM
IS43DR16160B DDR2 DRAM
IS43DR16320B 512Mb DDR2 SDRAM
IS43DR16320D DDR2 DRAM
IS43DR16320E DDR2 DRAM
IS43DR32160C 16Mx32 512Mb DDR2 DRAM