The HSD16M64D16A is a 16M x 64 bit Synchronous Dynamic RAM high-density memory module. The module consists of sixteen CMOS 8M x 8 bit with 4banks Synchronous DRAMs in TSOP-II 400mil packages and 2K EEPROM in 8-pin TSSOP package on a 168-pin glass-epoxy.
Two 0.33uF-decoupling capacitors are mounted on the printed circuit board in parallel for each SDRAM.
The HSD16M64D16A is a DIMM (Dual in line Memory Module) and is intended for mounting into 168-pin edge connector sockets.
Synchronous design allows precise cycle control with the use of system clock.
I/O transactions are possible on every clock cycle.
Range of operating frequencies, programmable latencies allows the same device to be useful for a variety of high bandwidth, high performance memory system applications All module components may be powered from a single 3.3V DC power supply and all inputs and outputs are LVTTL-compatible.

* Part Identification
- HSD16M64D16A-F/10L : 100MHz (CL=3)
- HSD16M64D16A-F/10 : 100MHz (CL=2)
- HSD16M64D16A-F/12 : 125MHz (CL=3)
- HSD16M64D16A-F/13 : 133MHz (CL=3)
- F means Auto & Self refresh with Low-Power (3.3V)
* Burst mode operation
* Auto & self refresh capability (4096 Cycles/64ms)
* LVTTL compatible inputs and outputs
* Single 3.3V ±0.3V power supply
* MRS cycle with address key programs
- Latency (Access from column address)
- Burst length (1, 2, 4, 8 & Full page)
- Data scramble (Sequential & Interleave)
* All inputs are sampled at the positive going edge of the system clock
* The used device is 8M x 8bit x 4Banks SDRAM


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