8m x 64 (72) synchronous dram elm road, west chirton industrial estate, north shields, ne29 8se, england. tel +44 (0191) 2930500. fax +44 (0191) 2590997 e-mail: sales@aptagroup.co.uk description signal address input a0~a11 select bank ba0~ba1 data i/o d0~d63 clock input clk0~clk3 clock enable input cke0~cke1 chip select /cs0~3 row address strobe /ras column address strobe /cas write enable /we data i/o mask dqm~7 power v dd ground v ss serial data i/o sda serial clock scl address in eeprom sa0~2 write protection wp check bits cb0~7 do not use dnu no connection nc block diagram package details puma 64 - plastic 160pin pqfp package max. dimensions - 31.35 x 31.35 x 5.02 max. over pins all dimensions in mm. features ? unbuffered synchronous dram module organised as 2 banks of 4mx64 (or 72) 3.3v + 0.3v power supply. commercial and industrial temperature grades space saving 28mm square 160pin pqfp package (0.65mm pin pitch). pc 100 compatible operation. ? 4 internal sdram banks fully synchronous operation to rising edge of sys- tem clock. auto refresh and self refresh modes (4k/64ms) sequential and interleved burst mode operation programmable burst length (1,2,4,8,full page) serial presence detect eeprom on board decoupling capacitors puma 64sdva512x issue 5.0 december 1999 description the puma64sdva512x is a cost effective, unbuffered synchronous dram ecc memory component organised as 8m x 64 (or 72). it uses ten 4m x 16 sdram devices in a 160 pin plastic quad flat pack (pqfp) package to achieve up to twice the density of existing standard solutions. the device is designed to be soldered direct to the pcb, eliminating all socket reliability problems. pc-100 compatible variants are available which can sustain data transfer rates up to 100mhz. 66mhz variants are also available. all control, data and address input circuits are sampled on the positive edge of the system clock for fully synchronous operation. a 256byte eeprom is used to implement serial presence detect capability on board the module. the lower 128 bytes is reserved for module configurations programmed by the factory. the upper 128bytes are available for customer use. pin functions 4m x 16 sdram 4m x 16 sdram 4m x 16 sdram 4m x 16 sdram 4m x 16 sdram 4m x 16 sdram 4m x 16 sdram 4m x 16 sdram 4m x 16 sdram 4m x 16 sdram spd eeprom 47k scl sda sa 0 sa 1 sa 2 wp 10k vdd 15pf 10 ? 10 ? 10 ? 10 ? 10 ? 10 ? 10 ? 10 ? 10 ? 10pf 15pf 10pf clk2 cke1 /cs1 cke0 /cs0 /ras /cas /we a(11:0), ba0~1 d(15:0) dqm0 dqm1 clk0 d(47:32) dqm4 dqm5 cb(7:0) /cs3 /cs2 clk3 d(31:16) dqm2 dqm3 clk1 d(63:48) dqm6 dqm7
issue 5.0 december 1999 page 2 pin definition - puma64sdva512x pin signal pin signal pin signal pin signal 1 v ss 41 v ss 81 v ss 121 v ss 2 dnu 42 d16 82 sa2 122 d0 3 dnu 43 d17 83 sa1 123 d1 4 dnu 44 d18 84 sa0 124 d2 5 dnu 45 d19 85 scl 125 d3 6 dnu 46 v dd 86 sda 126 v dd 7 dnu 47 d20 87 wp 127 d4 8 dnu 48 d21 88 v dd 128 d5 9 dnu 49 d22 89 cb3 129 d6 10 dnu 50 d23 90 cb7 130 d7 11 dnu 51 v ss 91 cb2 131 v ss 12 v dd 52 d24 92 cb6 132 d8 13 /we 53 d25 93 v ss 133 d9 14 /cas 54 d26 94 dqm7 134 d10 15 /ras 55 d27 95 dqm6 135 d11 16 a0 56 v dd 96 dqm3 136 v dd 17 a1 57 d28 97 dqm2 137 d12 18 a2 58 d29 98 /cs3 138 d13 19 a3 59 d30 99 /cs2 139 d14 20 a4 60 d31 100 v dd 140 d15 21 v ss 61 d48 101 /cs1 141 d32 22 a5 62 d49 102 /cs0 142 d33 23 a6 63 d50 103 dqm5 143 d34 24 a7 64 d51 104 dqm4 144 d35 25 a8 65 v dd 105 dqm1 145 v dd 26 a9 66 d52 106 dqm0 146 d36 27 a10 67 d53 107 v ss 147 d37 28 a11 68 d54 108 cb5 148 d38 29 v dd 69 d55 109 cb1 149 d39 30 ba0 70 v ss 110 cb4 150 v ss 31 ba1 71 d56 111 cb0 151 d40 32 nc 72 d57 112 v dd 152 d41 33 cke0 73 d58 113 nc 153 d42 34 nc 74 d59 114 nc 154 d43 35 cke1 75 v dd 115 nc 155 v dd 36 clk0 76 d60 116 nc 156 d44 37 clk1 77 d61 117 nc 157 d45 38 clk2 78 d62 118 nc 158 d46 39 clk3 79 d63 119 nc 159 d47 40 v ss 80 v ss 120 v ss 160 v ss
page 3 issue 5.0 december 1999 package details puma 64 - surface mount pqfp 5.02 max. 31.20 + 0.15 27.6 + 0.1 0.65 nom. 1 40 41 80 81 120 121 160 0.45 max. 0.22 min. all dimensions in mm.
page 4 issue 5.0 december 1999 ordering information ordering information note : although this data is believed to be accurate the information contained herein is not intended to and does not create any warranty of merchantibility or fitness for a particular purpose. our products are subject to a constant process of development. data may be changed without notice. products are not authorised for use as critical components in life support devices without the express written approval of a company director.
x = pinout variant type refer to table below temp. range blank = commercial i = industrial density (mbit) 512 = 512mbit voltage va = 3.3v technology sd = synchronous dram package puma 64 = 160 pin pqfp type ecc refresh pc100 compatible speed registered/buffered t1 8 bit 4k yes no t2 8 bit 4k yes yes t3 no 4k yes no t4 no 4k yes yes
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