Accutek Microcircuit Corporation AK5322048BW 2,097,152 Word by 32 Bit CMOS Dynamic Random Access Memory DESCRIPTION The Accutek AK5322048BW high density memory module is a CMOS dynamic RAM organized in 2048K x 32 bit words. The module consists of four standard 1 Meg x 16 bits DRAMs in plastic SOJ packages. The assembly has two DRAMs mounted on each 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 AK5322048BW is identical to sixteen 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. · Power: 3.96 Watt Max Active (50nS) 3.52 Watt Max Active (60 nS) 3.08 Watt Max Active (70 nS) 44 mW Max Standby FEATURES · 2,097,152 x 32 bit organization · 72 pad Single In-Line Module · Downward compatible with AK5321024W, AK532512W and AK532256W · CAS-before-RAS, RAS-only or hidden refresh o o · Operating free air temperature 0 C to 70 C · Upward compatible with AK5324096W and AK5328192W · Single 5 Volt Power Supply · 1024 Refresh Cycles, 16 mSEC ADDITIONAL OPTIONS AVAILABLE · Available in Fast Page Mode or EDO 1 Meg x 32 version, AK5321024BW 1 Meg x 36 version, AK5361024BW 2 Meg x 36 version, AK5362048BW PIN NOMENCLATURE PIN ASSIGNMENT A0 - A9 Address Inputs DQ0 - DQ35 Data In/Data Out W Write Enable RAS0, RAS1 Row Address Strobe CAS0 - CAS3 Column Address Strobe PD1 - PD4 Presence Detect Vss Ground Vcc 5v Supply NC No Connect PIN # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 MODULE OPTIONS Leadless SIM: AK5322048BW SYMBOL Vss DQ0 DQ16 DQ1 DQ17 DQ2 DQ18 DQ3 DQ19 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 DQ20 DQ5 DQ21 DQ6 DQ22 DQ7 DQ23 A7 NC Vcc A8 A9 RAS3 RAS2 NC NC Presence Detect PD1 PD2 PD3 PD4 -50 NC VC Vss Vss -60 NC NC NC NC -70 NC NC Vss 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 RAS1 NC WE NC DQ8 DQ24 DQ9 DQ25 DQ10 DQ26 PIN # 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 SYMBOL DQ11 DQ27 DQ12 DQ28 Vcc DQ29 DQ13 DQ30 DQ14 DQ31 DQ15 NC PD1 PD1 PD3 PD4 NC Vss FUNCTIONAL DIAGRAM DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 DQ16 DQ17 DQ18 DQ19 DQ20 DQ21 DQ22 DQ23 DQ24 DQ25 DQ26 DQ27 DQ28 DQ29 DQ30 DQ31 DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DQ8 DQ9 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 MECHANICAL DIMENSIONS 4.250" 3.985" 0.330" MAX .125" DIA TOOLING HOLE .750" 0.400" 0.250" 72 1 0.050" TYP 0.125" 0.080" CL CL 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: [email protected] Internet: www.accutekmicro.com CL CL 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.