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| Accutek Microcircuit Corporation DESCRIPTION The Accutek AK5321024BW high density memory module is a CMOS dynamic RAM organized in 1024K x 32 bit words. The module consists of two standard 1 Meg x 16 bits DRAMs in plastic SOJ packages mounted on the front side of a printed circuit board in a 72 pad leadless SIM configuration. 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 AK5321024BW is identical to eight 1 Meg x 4 Drams. There are four CAS lines and two RAS lines. On each bank of 1M x 32, independent byte control is accomplished by four CAS lines. Each seperate CAS line controls one byte of the 1 Meg x 16 Dram. + 1 AK5321024BW 1,048,576 Word by 32 Bit CMOS Dynamic Random Access Memory + 72 FEATURES * 1,048,576 x 32 bit organization * 72 pad Single In-Line Module * Standard with gold fingers, solder or tin plating optional * CAS-before-RAS, RAS-only or hidden refresh * Operating free air temperature 00C to 700C * Single 5 Volt Power Supply * 1024 Refresh Cycles, 16 mSEC * Available in Fast Page Mode or EDO * Power: 2.0 Watt Max Active (50nS) 1.7 Watt Max Active (60 nS) 1.6 Watt Max Active (70 nS) 20 mW Max Standby * Downward compatible with AK532512W and AK532256W * Upward compatible with AK5322048W, AK5324096W and AK5328192W ADDITIONAL OPTIONS AVAILABLE * 1 Meg x 36 version, AK5361024BW * 2 Meg x 32 version, AK5322048BW * 2 Meg x 36 version, AK5362048BW PIN NOMENCLATURE A0 - A9 DQ0 - DQ34 WE RAS0, RAS2 CAS0 - CAS3 PD1 - PD4 Vss Vcc NC Address Inputs Data In/Data Out Write Enable Row Address Strobe Column Address Strobe Presence Detect Ground 5v Supply No Connect PIN ASSIGNMENT PIN # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 SYMBOL Vss DQ0 DQ18 DQ1 DQ19 DQ2 DQ20 DQ3 DQ21 Vcc NC A0 A1 A2 A3 A4 A5 A6 PIN # 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 SYMBOL NC DQ4 DQ22 DQ5 DQ23 DQ6 DQ24 DQ7 DQ25 A7 NC Vcc A8 A9 NC RAS2 NC NC PIN # 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 SYMBOL NC NC Vss CAS0 CAS2 CAS3 CAS1 RAS0 NC NC WE NC DQ9 DQ27 DQ10 DQ28 DQ11 DQ29 PIN # 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 SYMBOL DQ12 DQ30 DQ13 DQ31 Vcc DQ32 DQ14 DQ33 DQ15 DQ34 DQ16 NC PD1 PD2 PD3 PD4 NC Vss MODULE OPTIONS Leadless SIM: AK5321024BW Leades ZIP: AK5321024BZ Presence Detect PD1 PD2 PD3 PD4 -50 Vss Vss Vss Vss -60 Vss Vss NC NC -70 Vss Vss Vss NC FUNCTIONAL DIAGRAM DQ18 DQ19 + DQ20 + DQ21 + DQ22 + DQ23 + DQ24 + DQ25 + + DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 DQ7 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 A0 - A9 LCAS RAS A0 - A9 UCAS UCAS LCAS RAS WE RAS0 + CAS0 + CAS1 + RAS2 + CAS2 + + A0 - A9 MECHANICAL DIMENSIONS 4.250" 3.985" CAS3 + WE + WE 0.200" MAX OE .125" DIA TOOLING HOLE .750" 0.400" 0.250" 1 72 0.125" 0.080" CC LL CC LL 0.050" TYP ACCUTEK MICROCIRCUIT CORPORATION BUSINESS CENTER at NEWBURYPORT 2 NEW PASTURE ROAD, SUITE 1 NEWBURYPORT, MA 01950-4054 VOICE: 978-465-6200 FAX: 978-462-3396 Email: 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. Preliminary data sheets contain minimum and maximum limits based upon design objectives, which are subject to change upon full characterization over the specific operating conditions. OE DQ8 DQ7 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 DQ27 DQ28 + DQ29 + DQ30 + DQ31 + DQ32 + DQ33 + DQ34 + DQ9 DQ10 + DQ11 + DQ12 + DQ13 + DQ14 + DQ15 + DQ16 + DQ0 DQ1 + DQ2 + DQ3 + DQ4 + DQ5 + DQ6 + DQ7 + + + + |
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