Accutek Microcircuit Corporation AK5321024BW 1,048,576 Word by 32 Bit CMOS Dynamic Random Access Memory 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. + + 1 72 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. FEATURES · 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 · 1,048,576 x 32 bit organization · 72 pad Single In-Line Module · Standard with gold fingers, solder or tin plating optional · Downward compatible with AK532512W and AK532256W · CAS-before-RAS, RAS-only or hidden refresh · Upward compatible with AK5322048W, AK5324096W and AK5328192W · Operating free air temperature 00C to 700C · Single 5 Volt Power Supply ADDITIONAL OPTIONS AVAILABLE · 1024 Refresh Cycles, 16 mSEC · 1 Meg x 36 version, AK5361024BW · Available in Fast Page Mode or EDO · 2 Meg x 32 version, AK5322048BW · 2 Meg x 36 version, AK5362048BW PIN NOMENCLATURE PIN ASSIGNMENT A0 - A9 Address Inputs DQ0 - DQ34 Data In/Data Out WE Write Enable RAS0, RAS2 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: AK5321024BW Leades ZIP: AK5321024BZ 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 Presence Detect PD1 PD2 PD3 PD4 -50 Vss Vss Vss Vss -60 Vss Vss NC NC -70 Vss Vss 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 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 DQ8 DQ7 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 LCAS UCAS CAS2 + CAS3 + WE + + OE RAS RAS2 + DQ27 DQ28 + DQ29 + DQ30 + DQ31 + DQ32 + DQ33 + DQ34 DQ18 DQ19 + DQ20 + DQ21 + DQ22 + DQ23 + DQ24 + DQ25 + DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 A0 - A9 WE + OE WE + DQ9 DQ10 + DQ11 + DQ12 + DQ13 + DQ14 + DQ15 + DQ16 UCAS CAS1 + + LCAS CAS0 + + DQ8 DQ7 DQ10 DQ11 DQ12 DQ13 DQ14 DQ15 RAS + DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 A0 - A9+ A0 - A9 + DQ0 DQ1 + DQ2 + DQ3 + DQ4 + DQ5 + DQ6 + DQ7 RAS0 + FUNCTIONAL DIAGRAM MECHANICAL DIMENSIONS 4.250" 3.985" .125" DIA TOOLING HOLE 0.200" MAX .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 VOICE: 978-465-6200 FAX: 978-462-3396 Email: [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.