description the accutek ak5324096w high density memory module is a cmos dynamic ram organized in 4096k x 32 bit words. the mod - ule consists of eight standard 4 me g x 4 drams in plastic soj pack - ages mounted on the front surface of a printed circuit board with a low profile height of only 0.875" in a 72 pin leadless sim configura - tion. this configuration allows socket-mounting of large quantities of memory in applications where high density and ease of inserting additional memory are important. the operation of the ak5324096w is identical to eight 4 meg x 4 drams. there are four cas lines and two ras lines. independent byte control is accomplished by four cas lines. each separate cas line controls two of the 4 meg x 4 drams to form an 8 bit byte. the bank of 32 bits is controlled by the two ras lines. a sixteen bit data path can be produced by connecting dq 0 to dq 16 ,dq 1 to dq 17 , etc. and alternately strobing ras 0 with ras 2 . features 4,194,304 x 32 bit organization low profile board height of 0.875 inch 72 pad single in-line module multiple cas and ras lines allow x16 or x32 bit widths power 5.28 watt max active (60ns) 4.40 watt max active (70 ns) 44 mw max standby cas -before- ras , ras -only or hidden refresh single 5 volt power supply 2048 refresh cycles, 32 msec available in fast page mode and edo available in leadless sim or leaded zip versions downward compatible with ak5322048w, ak5321024w, ak532512w and ak536256w upward compatible with ak5328192w, ak53216384 and ak53232768 operating free air temperature 0 0 cto70 0 c additional options available 4 meg x 32 version, using 4k refresh drams, AK5324096W4K accutek microcircuit corporation ak5324096w 4,194,304 word by 32 bit cmos dynamic random access memory + + 72 1 pin nomenclature a 0 -a 10 address inputs dq 0 -dq 31 data in/data our cas 0 - cas 3 column address strobe ras 0 , ras 2 row address strobe we write enable oe output enable pd 1 -pd 4 presence detect vcc 5v supply vss ground nc no connect module options leadless sim: ak5324096w leaded zip: ak5324096z pin assignment pin # symbol pin # symbol pin # symbol pin # symbol 1 vss 19 a10 37 nc 55 dq11 2 dq0 20 dq4 38 nc 56 dq27 3 dq16 21 dq20 39 vss 57 dq12 4 dq1 22 dq5 40 cas0 58 dq28 5 dq17 23 dq21 41 cas2 59 vcc 6 dq2 24 dq6 42 cas3 60 dq29 7 dq18 25 dq22 43 cas1 61 dq13 8 dq3 26 dq7 44 ras0 62 dq30 9 dq19 27 dq23 45 nc 63 dq14 10 vcc 28 a7 46 nc 64 dq31 11 nc 29 nc 47 we 65 dq15 12 a0 30 vcc 48 nc 66 nc 13 a1 31 a8 49 dq8 67 pd1 14 a2 32 a9 50 dq24 68 pd2 15 a3 33 nc 51 dq9 69 pd3 16 a4 34 ras2 52 dq25 70 pd4 17 a5 35 nc 53 dq10 71 nc 18 a6 36 nc 54 dq26 72 vss presence detect - -60 -70 pd1 vss vss pd2 nc nc pd3 nc vss pd4 nc nc
functional diagram mechanical dimensions 0.200" max 4.250" 3.985" + c l c l c l 0.875" max 0.425" 0.375" 0.250" c l 0.080" 0.125" 0.050" typ + a-a 010 cas 0 11 ras 0 we oe dq - dq 03 a-a 010 cas we ras oe dq -dq 04 oe dq - dq 47 a-a 010 cas we ras oe dq -dq 04 oe oe dq - dq 12 15 dq - dq 811 a-a 010 a-a 010 cas cas we we ras ras oe oe dq -dq 04 dq -dq 04 oe dq - dq 16 19 a-a 010 cas we ras oe dq -dq 04 oe dq - dq 20 23 a-a 010 cas we ras oe dq -dq 04 oe dq - dq 24 27 a-a 010 cas we ras oe dq -dq 04 oe dq - dq 28 31 a-a 010 cas we ras oe dq -dq 04 ras 2 cas 1 cas 0 cas 0 cas 0 cas 2 cas 3 accutek microcircuit corporation business center at newburyport 2 new pasture road, suite 1 newburyport, ma 01950-4054 phone: 978-465-6200 fax: 978-462-3396 e-mail: sales@accutekmicro.com internet: www.accutekmicro.com accutek reserves the right to make changes in specifications at any time and without notice. accutek does not assume any responsibility for the use of any circuitry described; no circuit patent licenses are implied. pre - liminary data sheets contain minimum and maximum limits based upon design objectives, which are subject to change upon full characterization over the specific operating conditions.
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