AS4C256M8D3A-12BAN Alliance Memory

AS4C256M8D3A-12BAN Revision History 2Gb AS4C256M8D3A-12BAN - 78 ball FBGA PACKAGE Revision Details Date Rev 1.0 Preliminary datasheet May. 2016 Alliance Memory Inc. 511 Taylor Way, San Carlos, CA 94070 TEL: (650) 610-6800 FAX: (650) 620-9211 Alliance Memory Inc. reserves the right to change products or specification without notice Confidential -183- Rev. 1.0 May 2016AS4C256M8D3A-12BAN 256M x 8 bit DDR3 Synchronous DRAM (SDRAM) Features Overview JEDEC Standard Compliant The 2Gb Double-Data-Rate-3 DRAMs is double data rate architecture to achieve high-speed operation. It is Power supplies: V & V = +1.5V 0.075V DD DDQ internally configured as an eight bank DRAM. Automotive temperature: TC = -40~105 C The 2Gb chip is organized as 32Mbit x 8 I/Os x 8 bank AEC-Q100 Compliant devices. These synchronous devices achieve high Supports JEDEC clock jitter specification speed double-data-rate transfer rates of up to 1866 Fully synchronous operation Mb/sec/pin for general applications. Fast clock rate: 800MHz The chip is designed to comply with all key DDR3 DRAM key features and all of the control and address Differential Clock, CK & CK inputs are synchronized with a pair of externally Bidirectional differential data strobe supplied differential clocks. Inputs are latched at the - DQS & DQS cross point of differential clocks (CK rising and CK 8 internal banks for concurrent operation falling). All I/Os are synchronized with differential DQS 8n-bit prefetch architecture pair in a source synchronous fashion. Pipelined internal architecture These devices operate with a single 1.5V 0.075V Precharge & active power down power supply and are available in BGA packages. Programmable Mode & Extended Mode registers Additive Latency (AL): 0, CL-1, CL-2 Programmable Burst lengths: 4, 8 Burst type: Sequential / Interleave Output Driver Impedance Control 8192 refresh cycles / 64ms - Average refresh period 7.8s -40 C TC +85 C 3.9s +85 C TC +105 C Write Leveling ZQ Calibration Dynamic ODT (Rtt Nom & Rtt WR) RoHS compliant Auto Refresh and Self Refresh 78-ball 8 x 10.5 x 1.0mm FBGA package - Pb and Halogen Free Table 1. Ordering Information Temperature Org Max Clock (MHz) Product part No Package 800 AS4C256M8D3A-12BAN 256M x 8 Automotive -40C to 105C 78-ball FBGA Table 2. Speed Grade Information Speed Grade Clock Frequency CAS Latency t (ns) t (ns) RCD RP 13.75 13.75 DDR3-1600 800 MHz 11 Confidential -283- Rev. 1.0 May 2016