Density 512M
Org 32Mx16
Vcc 1.8V
Type DDR2
Refresh 8K
Speed 25 = 400MHz
Status NR
Pkg Pins BGA(84)
Operating Voltage Range DR = 1.8V DDR2
Bus Width 16 = x16
Product Family 43 = DDR/DDR2/DDR3/DDR4 Commercial/Industrial grade
Generation C = C
Package Type B = BGA
Temp. Grade blank = Commercial Grade (0°C to +70°C)
Solder Type L = SnAgCu
Number Of Words 320 = 32M
CL (CAS Latency) D = 5
Outpack Tape on Reel

IS43DR16320C-25DBL-TR 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
  • 4 internal banks for concurrent operation
  • Programmable CAS latency (CL) 3, 4, 5, and 6 supported
  • Posted CAS and programmable additive latency (AL) 0, 1, 2, 3, 4, and 5 supported
  • WRITE latency = READ latency - 1 tCK
  • Programmable burst lengths: 4 or 8
  • Adjustable data-output drive strength, full and reduced strength options
  • On-die termination (ODT) OPTIONS
  • Configuration(s): 64Mx8 (16Mx8x4 banks) IS43/46DR86400C 32Mx16 (8Mx16x4 banks) IS43/46DR16320C
  • 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


ISSI's 512Mb 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.


Related Part Number(s)

Description Stock Qty Available Qty Description Stock Qty Available Qty
IS43DR16320C-25DBL 5,000 IS43DR16320C-3DBI-TR 7,500
IS43DR16320C-25DBI 6,725 IS43DR16320C-3DBL 5,000
IS43DR16320C-25DBI-TR 7,500 IS43DR16320C-3DBL-TR 2,500
IS43DR16320C-25DBLI 10 IS43DR16320C-3DBLI 134
IS43DR16320C-25DBLI-TR 2,283 2,500 IS43DR16320C-3DBLI-TR 7,500
IS43DR16320C-3DBI 6,878