IS43DR86400, IS43/46DR16320
PRELIMINARY INFORMATION
NOVEMBER 2009
512Mb (x8, x16) DDR2 SDRAM
FEATURES
•
•
•
•
•
•
Clock frequency up to 400MHz
•
On‐Chip DLL aligns DQ and DQs transitions with
CK transitions
Differential clock inputs CK and CK#
VDD and VDDQ = 1.8V ± 0.1V
PASR (Partial Array Self Refresh)
SSTL_18 interface
Posted CAS
•
•
•
•
•
•
•
Programmable CAS Latency: 3, 4, 5 and 6
Programmable Additive Latency: 0, 1, 2, 3, 4 and 5
Write Latency = Read Latency‐1
Programmable Burst Sequence: Sequential or
Interleave
tRAS lockout supported
•
•
•
•
•
•
•
•
•
Programmable Burst Length: 4 and 8
Automatic and Controlled Precharge Command
Power Down Mode
Read Data Strobe supported (x8 only)
Internal four bank operations with single pulsed
RAS
•
Operating temperature:
Auto Refresh and Self Refresh
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)
Refresh Interval: 7.8 μs (8192 cycles/64 ms)
OCD (Off‐Chip Driver Impedance Adjustment)
ODT (On‐Die Termination)
Weak Strength Data‐Output Driver Option
Bidirectional differential Data Strobe (Single‐
ended data‐strobe is an optional feature)
OPTIONS
ADDRESS TABLE
Parameter
64Mx8
A0‐A13
A0‐A9
BA0‐BA1
A10
32Mx16
A0‐A12
A0‐A9
BA0‐BA1
A10
• Configuration:
Row Addressing
Column Addressing
Bank Addressing
Precharge Addressing
−
−
64Mx8 (16M x 8 x 4 banks)
32Mx16 (8M x 16 x 4 banks)
• Package:
−
−
60‐ball FBGA for x8
84‐ball FBGA for x16
Clock Cycle Timing
‐5B
‐37C
‐3D
‐25E
‐25D
Units
Speed Grade
CL‐tRCD‐tRP
tCK (CL=3)
DDR2‐400B
DDR2‐533C
DDR2‐667D
DDR2‐800E
DDR2‐800D
3‐3‐3
5
5
4‐4‐4
5
3.75
5‐5‐5
5
3.75
6‐6‐6
5
3.75
5‐5‐5
5
3.75
tCK
ns
ns
tCK (CL=4)
tCK (CL=5)
5
5
3.75
3.75
266
3
3
3
2.5
2.5
400
ns
ns
tCK (CL=6)
2.5
400
Frequency (max)
200
333
MHz
Note: The ‐5B device specification is shown for reference only.
Copyright © 2006 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time without
notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to obtain the
latest version of this device specification before relying on any published information and before placing orders for products.
Integrated Silicon Solution, Inc. – www.issi.com –
1
Rev. 00A, 11/17/2009