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K4D553238F-JC40 Datasheet(PDF) 3 Page - Samsung semiconductor |
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K4D553238F-JC40 Datasheet(HTML) 3 Page - Samsung semiconductor |
3 / 17 page 256M GDDR SDRAM K4D553238F-JC - 3 - Rev 1.0 (Mar. 2004) The K4D553238F is 268,435,456 bits of hyper synchronous data rate Dynamic RAM organized as 4 x 2,097,152 words by 32 bits, fabricated with SAMSUNG’s high performance CMOS technology. Synchronous features with Data Strobe allow extremely high performance up to 2.8GB/s/chip. I/O transactions are possible on both edges of the clock cycle. Range of operating frequencies, programmable burst length and programmable latencies allow the device to be useful for a variety of high performance memory system applications. • 2.5V + 5% power supply for device operation • 2.5V + 5% power supply for I/O interface • SSTL_2 compatible inputs/outputs • 4 banks operation • MRS cycle with address key programs -. Read latency 3, 4 (clock) -. Burst length (2, 4 and 8) -. Burst type (sequential & interleave) • All inputs except data & DM are sampled at the positive going edge of the system clock • Differential clock input • No Wrtie-Interrupted by Read Function GENERAL DESCRIPTION FEATURES • 4 DQS’s ( 1DQS / Byte ) • Data I/O transactions on both edges of Data strobe • DLL aligns DQ and DQS transitions with Clock transition • Edge aligned data & data strobe output • Center aligned data & data strobe input • DM for write masking only • Auto & Self refresh • 32ms refresh period (4K cycle) • 144-Ball FBGA • Maximum clock frequency up to 350MHz • Maximum data rate up to 700Mbps/pin FOR 2M x 32Bit x 4 Bank GDDR SDRAM 2M x 32Bit x 4 Banks Graphic Double Data Rate Synchronous DRAM with Bi-directional Data Strobe and DLL ORDERING INFORMATION 1. K4D553238F-EC is the Lead Free package part number 2. For the K4D553238F-JC2A, VDD & VDDQ =2.8V + 0.1V Part NO. Max Freq. Max Data Rate Interface Package K4D553238F-JC2A 350MHz 700Mbps/pin SSTL_2 144-Ball FBGA K4D553238F-JC33 300MHz 600Mbps/pin K4D553238F-JC36 275MHz 550Mbps/pin K4D553238F-JC40 250MHz 500Mbps/pin K4D553238F-JC50 200MHz 400Mbps/pin |
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