The HYB39S16400/800/160BT are dual bank Synchronous DRAM鈥?based on the die revisions 鈥?鈥?/div>
& 鈥?and organized as 2 banks x 2MBit x4, 2 banks x 1MBit x8 and 2 banks x 512kbit x16
E鈥?/div>
respectively. These synchronous devices achieve high speed data transfer rates up to 125 MHz by
employing a chip architecture that prefetches multiple bits and then synchronizes the output data to
a system clock. The chip is fabricated with SIEMENS鈥檃dvanced 16MBit DRAM process technology.
The device is designed to comply with all JEDEC standards set for synchronous DRAM products,
both electrically and mechanically. All of the control, address, data input and output circuits are
synchronized with the positive edge of an externally supplied clock.
Operating the two memory banks in an interleaved fashion allows random access operation to occur
at higher rate than is possible with standard DRAMs. A sequential and gapless data rate of up to 125
MHz is possible depending on burst length, CAS latency and speed grade of the device.
Auto Refresh (CBR) and Self Refresh operation are supported. These devices operate with a single
3.3V +/- 0.3V power supply and are available in TSOPII packages.
These Synchronous DRAM devices are available with LV-TTL interfaces.
Semiconductor Group
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