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hyb18t512161cf?[16/20] 512-mbit x16 ddr2 sdram ddr2 sdram eu rohs compliant internet data sheet rev. 1.11 august 2008
internet data sheet hyb18t512161cf 512-mbit double-data-rate-two sdram qag_techdoc_a4, 4.20, 2008-01-25 2 07222008-fvt6-k01b we listen to your comments any information within this document that yo u feel is wrong, unclear or missing at all? your feedback will help us to continuous ly improve the quality of this document. please send your proposal (including a reference to this document) to: techdoc@qimonda.com hyb18t512161cf?[16/20] revision history: 2008-08, rev. 1.11 page subjects (major chang es since last revision) all removed 400 mhz previous revision:1.10, 2007-07 all adapted internet edition hyb18t512161cf 512-mbit double-data-rate-two sdram internet data sheet rev. 1.11, 2008-08 3 07222008-fvt6-k01b 1overview this chapter gives an overview of the 512-mbit double-d ata-rate-two sdram product family for graphics applications and describes its main characteristics. 1.1 features the 512-mbit double-data-rate-two sdra m offers the following key features: ?1.8v 0.1 v v dd for [?16/?20] ?1.8v 0.1 v v ddq for [?16/?20] ? dram organizations with 16 data in/outputs ? double data rate architecture: ? two data transfers per clock cycle ? four internal banks for concurrent operation ? programmable cas latency: 3, 4, 5, 6, 7 ? programmable burst length: 4 and 8 ? differential clock inputs (ck and ck ) ? bi-directional, differentia l data strobes (dqs and dqs ) are transmitted / received with da ta. edge aligned with read data and center-aligned with write data. ? dll aligns dq and dqs transitions with clock ?dqs can be disabled for single-ended data strobe operation ? commands entered on each positive clock edge, data and data mask are referenced to both edges of dqs ? data masks (dm) for write data ? posted cas by programmable additive latency (0-6) for better command and data bus efficiency ? off-chip-driver impedance adjustment (ocd) and on- die-termination (odt) for better signal quality. ? auto-precharge operation for read and write bursts ? auto-refresh, self-refresh and power saving power- down modes ? average refresh period 7.8 s at a t case lower than 85c, 3.9 s between 85c and 95c ? full strength and reduced strength (60%) data-output drivers ? 2 k page size ? package: p-tfbga-84 ? rohs compliant products 1) table 1 ordering information for rohs compliant products 1) rohs compliant product: restriction of the use of certain hazar dous substances (rohs) in el ectrical and electronic equipment as defined in the directive 2002/95/ec issued by the european parliament and of the council of 27 january 2003. these substances include m ercury, lead, cadmium, hexavalent chromium, polybro minated biphenyls and polybrominated biphenyl ethers. product number org. clock (mhz) package hyb18t512161cf?[16/20] 16 600/500 p-tfbga-84 hyb18t512161cf 512-mbit double-data-rate-two sdram internet data sheet rev. 1.11, 2008-08 4 07222008-fvt6-k01b 1.2 description the 512-mbit ddr2 sdram is a high-speed double-data-rate -two cmos synchronous dram device containing 536, 870, 912 bits and internally configured as a quad bank dram. the 512-mb device is organized as 8 mbit 16 i/o 4 banks chip. these synchronous devices achieve high speed transfer rate s starting at 800 mb/sec/pin for general applications. the device is designed to comply with all ddr2 dram key features: 1. posted cas with additive latency, 2. write latency = read latency - 1, 3. normal and weak strengt h data-output driver, 4. off-chip driver (ocd) impedance adjustment 5. on-die termination (odt) function. all of the control and address inputs are synchronized with a pair of externally s upplied differential clocks. inputs are latch ed at the cross point of differential clocks (ck rising and ck falling). all i/os are synchronized with a single ended dqs or differential dqs-dqs pair in a source synchronous fashion. a 15-bit address bus is used to convey ro w, column and bank address information in a ras -cas multiplexing style. an auto-refresh and self-refresh mode is provi ded along with various power-saving power-down modes. the functionality described and the timing specifications included in this data sheet are for t he dll enabled mode of operation . the ddr2 sdram is available in p-tfbga package. hyb18t512161cf 512-mbit double-data-rate-two sdram internet data sheet rev. 1.11, 2008-08 5 07222008-fvt6-k01b 2 configuration 2.1 chip configuration the chip configuration of a ddr2 sdram is listed by function in table 2 . the abbreviations used in the ball# and buffer type columns are explained in table 3 and table 4 respectively. the ball numbering for the fbga package is depicted in figure 1 . table 2 chip configuration of ddr2 sdram ball# name ball type buffer type function clock signals j8 ck i sstl clock signal ck, complementary clock signal ck note: ck and ck are differential syst em clock inputs. all address and control inputs are sampled on the crossing of the positive edge of ck and negative edge of ck . output (read) data is referenced to the crossing of ck and ck (both direction of crossing) k8 ck i sstl k2 cke i sstl clock enable note: cke high activates and cke low deactivates internal clock signals and device input buffers and output drivers. taking c ke low provides precharge power-down and self-refresh operation (all banks idle), or active power-down (row active in any bank). cke is synchronous for power down entry and exit and for self-refresh entry. input buffers excluding cke are disabled during self-refresh. cke is used asynchronously to detect self-refresh exit condition. self-refresh termination itself is synchronous. after v ref has become stable during power-on and initialisation sequence, it must be maintained for proper operation of the cke receiver. for proper self- refresh entry and exit, v ref must be maintained to this input. cke must be maintained high throughout read and write accesses. input buffers, excluding ck, ck , odt and cke are disabled during power-down control signals k7 ras i sstl row address strobe (ras), column address strobe (cas), write enable (we) l7 cas i sstl k3 we i sstl l8 cs i sstl chip select address signals l2 ba0 i sstl bank address bus 1:0 l3 ba1 i sstl hyb18t512161cf 512-mbit double-data-rate-two sdram internet data sheet rev. 1.11, 2008-08 6 07222008-fvt6-k01b m8 a0 i sstl address signal 12:0, address signal 10/autoprecharge m3 a1 i sstl m7 a2 i sstl n2 a3 i sstl n8 a4 i sstl n3 a5 i sstl n7 a6 i sstl p2 a7 i sstl p8 a8 i sstl p3 a9 i sstl m2 a10 i sstl ap i sstl p7 a11 i sstl r2 a12 i sstl data signals g8 dq0 i/o sstl data signal 15:0 note: bi-directional data bus. dq[15:0] g2 dq1 i/o sstl h7 dq2 i/o sstl h3 dq3 i/o sstl h1 dq4 i/o sstl h9 dq5 i/o sstl f1 dq6 i/o sstl f9 dq7 i/o sstl c8 dq8 i/o sstl c2 dq9 i/o sstl d7 dq10 i/o sstl d3 dq11 i/o sstl d1 dq12 i/o sstl d9 dq13 i/o sstl b1 dq14 i/o sstl b9 dq15 i/o sstl data strobe b7 udqs i/o sstl data strobe upper byte note: udqs corresponds to the data on dq[15:8] a8 udqs i/o sstl f7 ldqs i/o sstl data strobe lower byte note: ldqs corresponds to the data on dq[7:0] e8 ldqs i/o sstl data mask b3 udm i sstl data mask upper/lower byte note: ldm and udm are the input mask signals and control the lower or upper bytes. f3 ldm i sstl power supplies ball# name ball type buffer type function hyb18t512161cf 512-mbit double-data-rate-two sdram internet data sheet rev. 1.11, 2008-08 7 07222008-fvt6-k01b table 3 abbreviations for ball type table 4 abbreviations for buffer type a9,c1,c3,c7,c9 v ddq pwr ? i/o driver power supply a1 v dd pwr ? power supply a7,b2,b8,d2,d8 v ssq pwr ? i/o driver power supply a3,e3 v ss pwr ? power supply power supplies j2 v ref ai ? i/o reference voltage e9, g1, g3, g7, g9 v ddq pwr ? i/o driver power supply j1 v ddl pwr ? power supply e1, j9, m9, r1 v dd pwr ? power supply e7, f2, f8, h2, h8 v ssq pwr ? i/o driver power supply j7 v ssdl pwr ? power supply a3, e3,j3,n1,p9 v ss pwr ? power supply not connected a2, e2, r3, r7, r8, l1 nc nc ? not connected other balls k9 odt i sstl on-die termination control note: odt is applied to each dq, udqs, udqs , ldqs, ldqs , udm and ldm signal. an emrs(1) control bit enables or disables the odt functionality. abbreviation description i standard input-only ball. digital levels. o output. digital levels. i/o i/o is a bidirectional input/output signal. ai input. analog levels. pwr power gnd ground nc not connected abbreviation description sstl serial stub terminated logic (sstl_18) lv-cmos low voltage cmos cmos cmos levels od open drain. the corresponding ball has 2 operational states, active low and tristate, and allows multiple devices to share as a wire-or. ball# name ball type buffer type function hyb18t512161cf 512-mbit double-data-rate-two sdram internet data sheet rev. 1.11, 2008-08 8 07222008-fvt6-k01b figure 1 chip configuration, pg-tfbga-84 (top view) notes 1. udqs/udqs is data strobe for dq[15:8], ldqs/ldqs is data strobe for dq[7:0] 2. ldm is the data mask signal for dq[7:0], udm is the data mask signal for dq[15:8] 3. v ddl and v ssdl are power and ground for the dll. v ddl is connected to v dd on the device. v dd , v ddq , v ssdl , v ss and v ssq are isolated on the device. - 0 0 4 6 $ $ . # ! 6 3 3 1 . # 6 3 3 # + % # + 6 3 3 5 $ - $ 1 6 $ $ 1 $ 1 $ 1 6 3 3 6 $ $ , ! 6 3 3 1 $ 1 , $ 1 3 2 ! 3 6 $ $ ! 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