page : ?#? rev. 0.11b : 2012.06.05 preliminary rev. 0.11b 2012.06.05 r1qba44**rbg / r1qea44**rbg series (preliminary) features ? power supply ? 1.8 v for core (v dd ), 1.4 v to v dd for i/o (v ddq ) ? clock ? fast clock cycle time for high bandwidth ? two input clocks (k and /k) for precise ddr timing at clock rising edges only ? two output echo clocks (cq and /cq) simplify data capture in high-speed systems ? clock-stop capability with p s restart ? i/o ? common data input/output bus ? pipelined double data rate operation ? hstl i/o ? user programmable output impedance ? dll/pll circuitry for wide output data valid window and future frequency scaling ? data valid pin (qvld) to indicate valid data on the output ? function ? two-tick burst for low ddr transaction size ? internally self-timed write control ? simple control logic for easy depth expansion ? jtag 1149.1 compatible test access port ? package ? 165 fbga package (15 x 17 x 1.4 mm) description the r1q # a4436 is a 4,194,304-word by 36-bit and the r1q # a4418 is a 8,388,608-word by 18-bit synchronous double data rate static ram fabricated with advanced cmos technology using full cmos six-transistor memory cell. it integrates unique synchronous peripheral circuitry and a burst counter. all input registers are controlled by an input clock pair (k and /k) and are latched on the positive edge of k and /k. these products are suitable for applications which require synchronous operation, high speed, low voltage, high density and wide bit configuration. these products are packaged in 165-pin plastic fbga package. # = b: latency =2.5, w/o odt # = h: latency =2.0, w/o odt # = e: latency =2.5, w/ odt # = l: latency =2.0, w/ odt r1qba4436rbg / r1qba4418rbg / r1qba4409rbg r1qea4436rbg / r1qea4418rbg / r1qea4409rbg r1qha4436rbg / r1qha4418rbg / r1qha4409rbg r1qla4436rbg / r1qla4418rbg / r1qla4409rbg 144-mbit ddrii+ sram 2-word burst notes: 1. qdr rams and quad data rate rams comprise a new family of products developed by cypress semiconductor, idt, samsung, and renesas electronics corp. (qdr co-development team) 2. the specifications of this device are subject to change without notice. please contact your nearest renesas electronics sales office regarding specifications. 3. refer to " http://www.renesas.com/products/memory/fast_sram/qdr_sram/index.jsp " for the latest and detailed information. 4. descriptions about x9 parts in this datasheet are just for reference. r10ds0189ej0011 r10ds0189ej0011
page : ?#? rev. 0.11b : 2012.06.05 r1qba44**rbg / r1qea44**rbg series (preliminary) part number definition common 0 q % q o o g p v u 0 q % q o o g p v u 0 q % q o o g p v u 4 4 g p g u c u / g o q t [ 2 t g h k z # 8 f f 8 ( t g s w g p e [ / * \ 3 3 & |