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IS46DR16640C Datasheet DDR2 DRAM

Manufacturer: ISSI (now Infineon)

Overview: IS43/46DR81280C IS43/46DR16640C 128Mx8, 64Mx16 DDR2 DRAM.

Download the IS46DR16640C datasheet PDF. This datasheet also includes the IS43DR81280C variant, as both parts are published together in a single manufacturer document.

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General Description

MAY 2013 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 Configuration Refresh Count 128M x 8 16M x 8 x 8 banks 8K/64ms 64M x 16 8M x 16 x 8 banks 8K/64ms Row Addressing 16K (A0-A13) 8K (A0-A12) Column Addressing 1K (A0-A9) Bank Addressing BA0 - BA2 1K (A0-A9) BA0 - BA2 Precharge Addressing A10 A10 OPTIONS • Configuration(s): 128Mx8 (16Mx8x8 banks): IS43/46DR81280C 64Mx16 (8Mx16x8 banks): IS43/46DR16640C • Package: x8: 60-ball BGA (8mm x 10.5mm) x16: 84-ball WBGA (8mm x 12.5mm) • Timing – Cycle time 2.5ns @CL=5 DDR2-800D 2.5ns @CL=6 DDR2-800E 3.0ns @CL=5 DDR2-667D 3.75ns @CL=4 DDR2-533C 5ns @CL=3 DDR2-400B • Temperature Range: Commercial (0°C ≤ Tc ≤ 85°C) Industrial (-40°C ≤ Tc ≤ 95°C;

Key Features

  • Vdd = 1.8V ±0.1V, Vddq = 1.8V ±0.1V.
  • JEDEC standard 1.8V I/O (SSTL_18-compatible).
  • 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 CAS latency (CL) 3, 4, 5, 6 and 7 supported.
  • Posted CAS and programmable additive laten.

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More Datasheets from ISSI (now Infineon)

Part Number Description
IS46DR16640B 1Gb DDR2 SDRAM
IS46DR16640BL 1Gb DDR2 SDRAM
IS46DR16640D 64Mx16 DDR2 DRAM
IS46DR16640DL 64Mx16 DDR2 DRAM
IS46DR16128C DDR2 DRAM
IS46DR16160B DDR2 DRAM
IS46DR16320B 512Mb DDR2 SDRAM
IS46DR16320D DDR2 DRAM
IS46DR16320E DDR2 DRAM
IS46DR32160C 16Mx32 512Mb DDR2 DRAM