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IS43DR16640C

ISSI
Part Number IS43DR16640C
Manufacturer ISSI
Description DDR2 DRAM
Published Aug 1, 2016
Detailed Description IS43/46DR81280C IS43/46DR16640C 128Mx8, 64Mx16 DDR2 DRAM FEATURES • Vdd = 1.8V ±0.1V, Vddq = 1.8V ±0.1V • JEDEC standa...
Datasheet PDF File IS43DR16640C PDF File

IS43DR16640C
IS43DR16640C

Overview
IS43/46DR81280C IS43/46DR16640C 128Mx8, 64Mx16 DDR2 DRAM 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 latency (AL) 0, 1, 2, 3, 4, 5 and 6 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) ADVANCED INFORMATION 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; -40°C ≤ Ta ≤ 85°C) Automotive, A1 (-40°C ≤ Tc ≤ 95°C; -40°C ≤ Ta ≤ 85°C) Automotive, A2 (-40°C ≤ Tc; Ta ≤ 105°C) Tc = Case Temp, Ta = Ambient Temp KEY TIMING PARAMETERS Speed Grade -25D -3D tRCD 12.
5 15 tRP 12.
5 15 tRC 55 55 tRAS 40 40 tCK @CL=3 55 tCK @CL=4 3.
75 3.
75 tCK @CL=5 2.
...


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