A3S28D40JTP Datasheet 128M Double Data Rate Synchronous DRAM

Manufacturer: Zentel

Datasheet Details

Part number	A3S28D40JTP
Manufacturer	Zentel
File Size	533.07 KB
Description	128M Double Data Rate Synchronous DRAM
Datasheet	A3S28D40JTP Datasheet

A3S28D40JTP is a 4-bank x 2,097,152-word x 16bit double data rate synchronous DRAM , with SSTL_2 interface.

All control and address signals are referenced to the rising edge of CLK.

Input data is registered on both edges of data strobe ,and output data and data strobe are referenced on both edges of CLK.

A3S28D40JTP 128M Double Data Rate Synchronous DRAM 128Mb DDR SDRAM Specification A3S28D40JTP Zentel Electronics Corp.

Revision 1.0 Oct.

- VDD=VDDQ=2.5V+0.2V (-50) - Double data rate architecture ; two data transfers per clock cycle. - Bidirectional , data strobe (DQS) is transmitted/received with data - Differential clock input (CLK and /CLK) - DLL aligns DQ and DQS transitions with CLK transitions edges of DQS - Commands entered on each positive CLK edge ; - Data and data mask referenced to both edges of DQS - 4 bank operation controlled by BA0 , BA1 (Bank Address) - CAS latency - 2.0 / 2.5 / 3.0 (programmable) ; Burst length -.

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