HANBit
HDD32M64F8
DDR SDRAM Module 256Mbyte (32Mx64bit), based on 32Mx8, 4Banks,
8K Ref., SMM,
Part No. HDD32M64F8
GENERAL DESCRIPTION
The HANBiT HDD32M64F8 is 32M bit x 64 Double Data Rate SDRAM high density memory modules. The HANBiT
HDD32M64F8 consists of eight CMOS 32M x 8 bit with 4banks Double Data Rate SDRAMs in 66pin TSOP-II(400mil)
packages mounted on a 200pin glass-epoxy substrate. Four 0.1uF decoupling capacitors are mounted on the printed circuit
board in parallel for each DDR SDRAM. The HDD32M64F8 is Dual In-line Memory Modules and inten-ded for mounting into
200pin edge connector sockets.
Synchronous design allows precise cycle control with the use of system clock. Data I/O transactions are possible on
both edges of DQS. Range of operating frequencies, programmable latencies and burst lengths allow the same device to be
useful for a variety of high bandwidth, high performance memory system applications.
FEATURES
•
Part Identification
HDD32M64F8
–
10A : 100MHz (CL=2)
HDD32M64F8
–
13A : 133MHz (CL=2)
HDD32M64F8
–
13B : 133MHz (CL=2.5)
•
Power supply : V
DD
: 2.5V
±
0.2V, V
DDQ
: 2.5V
±
0.2V
•
Double-data-rate architecture; two data transfers per clock cycle
•
Bidirectional data strobe(DQS)
•
Differential clock inputs(CK and CK)
•
DLL aligns DQ and DQS transition with CK transition
•
Programmable Read latency 2, 2.5 (clock)
•
Programmable Burst length (2, 4, 8)
•
Programmable Burst type (sequential & interleave)
•
Edge aligned data output, center aligned data input
•
Auto & Self refresh, 7.8us refresh interval(8K/64ms refresh)
•
Serial presence detect with EEPROM
URL : www.hbe.co.kr
REV 2.0 (November.2002)
1
HANBit Electronics Co.,Ltd.
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