1. ISSI
  2. DRAM
  3. DDR2 SDRAM
  4. 1.8V Automotive
  5. 1G 64Mx16
  6. BGA(84)
  7. IS46DR16640B-25DBA1

  IS46DR16640B-25DBA1

Datasheet
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Density 1G
Org 64Mx16
Vcc 1.8V
Type DDR2
Refresh 8K
Speed 25 = 400MHz
Status NR
Comment
Pkg Pins BGA(84)
Product Family 46 = DDR/DDR2/DDR3/DDR4 Automotive grade
Temp. Grade A1 = Automotive Grade (-40°C to +85°C)
Solder Type blank = Sn/Pb
Number Of Words 640 = 64M
CL (CAS Latency) D = 5
Generation B = B
Operating Voltage Range DR = 1.8V DDR2
Bus Width 16 = x16
Package Type B = BGA
Datasheet
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IS46DR16640B-25DBA1 Features

  • Clock frequency up to 400MHz
  • 8 internal banks for concurrent operation
  • 4-bit prefetch architecture
  • Programmable CAS Latency: 3, 4, 5, 6 and 7
  • Programmable Additive Latency: 0, 1, 2, 3, 4, 5 and 6
  • Write Latency = Read Latency-1
  • Programmable Burst Sequence: Sequential or Interleave
  • Programmable Burst Length: 4 and 8
  • Automatic and Controlled Precharge Command
  • Power Down Mode
  • Auto Refresh and Self Refresh
  • Refresh Interval: 7.8 s (8192 cycles/64 ms)
  • ODT (On-Die Termination)
  • Weak Strength Data-Output Driver Option
  • Bidirectional differential Data Strobe (Single- ended data-strobe is an optional feature)
  • On-Chip DLL aligns DQ and DQs transitions with CK transitions
  • DQS# can be disabled for single-ended data strobe
  • Read Data Strobe supported (x8 only)
  • Differential clock inputs CK and CK#
  • VDD and VDDQ = 1.8V ± 0.1V
  • PASR (Partial Array Self Refresh)
  • SSTL_18 interface tRAS lockout supported
  • Operating temperature: Commercial (TA = 0°C to 70°C ; TC = 0°C to 85°C) Industrial (TA = -40°C to 85°C; TC = -40°C to 95°C) Automotive, A1 (TA = -40°C to 85°C; TC = -40°C to 95°C) Automotive, A2 (TA = -40°C to 105°C; TC = -40°C to 105°C) OPTIONS
  • Configuration:  128Mx8 (16M x 8 x 8 banks)  64Mx16 (8M x 16 x 8 banks)
  • Package:  60-ball TW-BGA for x8  84-ball TW-BGA for x16

Overview

Power-up and Initialization DDR2 SDRAMs must be powered up and initialized in a predefined manner. Operational procedures other than those specified may result in undefined operation.

 

Related Part Number(s)

Description Stock Qty Available Qty Description Stock Qty Available Qty
IS46DR16640B-25DBA1-TR IS46DR16640B-3DBA2-TR
IS46DR16640B-25DBA2 IS46DR16640B-3DBLA1 1,672
IS46DR16640B-25DBA2-TR IS46DR16640B-3DBLA1-TR 2,500
IS46DR16640B-25DBLA1 6,029 IS46DR16640B-3DBLA2 6,293
IS46DR16640B-25DBLA1-TR 7,500 IS46DR16640B-3DBLA2-TR 7,500
IS46DR16640B-25DBLA2 2,461 1,285 IS46DR16640BL-3DBLA1
IS46DR16640B-25DBLA2-TR 7,500 IS46DR16640BL-3DBLA1-TR
IS46DR16640B-3DBA2